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1. Project Overview This is a fully functional calendar and reminder app for a global user base, currently built as a single-page web app (HTML, CSS, vanilla JavaScript, plus a small number of external libraries) and hosted on a modern static-hosting platform. It includes an active feature set (a calendar section, reference/content sections, a classifieds section, and a personal module — a private space for reminders, a small income/expense register, saved logins, links, and notes). We are ready to package this as native iOS and Android apps. Apple Developer Program and Google Play Console accounts are already set up and verified under our ownership. 2. Current State — What Already Exists • Fully working single-file HTML/CSS/JS web app, live today. • External dependencies loaded via CDN: two Google Fonts (a rounded display font and a companion body font), a carousel/slider library, and a client-side PDF generation library (for in-app report generation). None require a build step today. • A built-in personal module using browser IndexedDB for on-device storage of reminders, an income/expense register, saved website logins (with masked passwords), links, and notes — full add/edit/delete already implemented. • An Export/Import feature producing a single JSON backup file covering all personal-module data — this is the intended bridge format for migrating data into native on-device storage (see Section 4). • A written internal specification (attached) documenting exactly which features require native infrastructure and why, plus two explicit “Development Note” sections describing security and currency work deliberately deferred from the web build. 3. Goal Wrap the existing hosted web app so it installs and runs natively on iOS and Android, and implement the specific native capabilities the web version cannot provide — most importantly, reliable reminder notifications that fire even when the app is closed. Everything else in the current web experience should carry over as-is unless noted below. 4. In Scope 4.1 Wrapper • Wrap the existing hosted site using Capacitor, Cordova, or a comparable wrapper — bidder's choice, provided the result meets current Apple App Store and Google Play guidelines. • Confirm whether any embedded or linked content requires Google account sign-in (e.g. Google Forms, Sheets). Google blocks OAuth login inside embedded WebViews — any such flow must open in the system browser instead, not the app's internal WebView. Please audit and flag any instance of this during discovery. 4.2 Native Notification Engine (core requirement) This is the single most important piece of native functionality in this project. All reminders are based on dates already known and stored on the device (birthdays, anniversaries, appointments) — nothing needs to be triggered from a server. These should be implemented as native LOCAL notifications (e.g. Capacitor's Local Notifications plugin), scheduled on-device, firing reliably whether the app is foregrounded, backgrounded, or fully closed, on both iOS and Android. No remote push service (APNs/FCM) or backend is required for this feature. If a future phase adds server-triggered alerts (e.g. broadcast announcements), that would be a separate, explicitly scoped addition — please do not include remote push infrastructure in this quote unless you believe it's genuinely required, and explain why. • The app's existing calendar-section reminders (currently best-effort web push). • The personal module's reminder engine: birthdays, anniversaries, appointments, occasions, and program reminders, each with a configurable lead time (same day / 1 day / 3 days / 1 week before). A single shared native notification-scheduling module should serve both, rather than two separate implementations. 4.3 Personal Module Security Layer (currently deferred, must be built for native) The web build deliberately ships without a PIN lock, since a forgotten PIN with no recovery path would mean total data loss on a fragile browser-storage backend. This is documented as required — not optional — scope for the native build. Full detail is in the attached spec document; summary: • PIN lock to enter the personal module. ◦ A recovery key generated once at setup (shown to the user once, theirs to store) — this is what makes a forgotten PIN survivable, following the standard pattern used by password managers. ◦ “Forgot PIN?” flow: verify the recovery key, allow setting a new PIN without losing data. ◦ Auto-lock on idle/backgrounding, reinstated now that there's an actual PIN gate to protect. • Encrypted backup export/import, using the recovery key (not the PIN) as the encryption key — a 4-digit PIN is too weak to protect a file that might sit in an inbox for years. 4.4 Data Migration Any data a user has already entered in the web trial (via IndexedDB) should be able to move into the native app's on-device storage (SQLite or equivalent). The existing Export/Import JSON format (already built and working in the web app) is the intended bridge — the native app's first-run flow should be able to import this format. If a different approach is proposed, please explain the trade-off in your quote. 4.5 Store Compliance & Polish • App icons, launch/splash screens, and permission-usage strings (e.g. notifications, storage) for both platforms. • Any other tweaks required to satisfy current App Store and Google Play review guidelines — in particular Apple's Guideline 4.2 (“minimum functionality”), which scrutinizes apps that are thin WebView wrappers. Please note in your quote how you intend to address this, given the app does include genuine native functionality (notifications, on-device storage, native UI in the personal module). 5. Explicitly Out of Scope for This Phase • In-app purchases. Not part of this phase — undecided whether we'll add a premium tier later. Please do not price this in; we may discuss it separately in a future phase. • Rebuilding or redesigning any existing web functionality that already works — the wrapper should preserve current behavior, not rebuild it. • Any backend or server component — reminders should be handled entirely via on-device local notifications, with no server dependency. 6. Deliverables • Signed, submitted builds for both iOS and Google Play. • Guidance through App Store Connect and Google Play Console submission, remaining engaged through any review feedback until both apps are live. • Clean, well-commented wrapper source and build instructions sufficient for us to reproduce future updates ourselves. • A short written note on how the native notification engine and the PIN/recovery-key system work, so we can maintain them going forward. 7. Acceptance Criteria • Both apps pass Apple and Google review without required resubmissions. • Reminder notifications (both the calendar section's reminders and the personal module's reminder engine) register and are received while the app is foregrounded, backgrounded, and fully closed, on real devices — for both platforms. • PIN lock, recovery-key setup, “Forgot PIN?” recovery, and auto-lock all function correctly on real devices. • Existing web-trial data can be imported into the native app via the Export/Import format without loss. • No missing assets or library conflicts from the existing external scripts (fonts, carousel library, PDF generation library). • Clean, well-commented wrapper/build instructions delivered, sufficient to reproduce future updates. 8. Timing Flexible, but we'd like to reach both stores within the next few weeks. Please quote your realistic timeline alongside price — we are more interested in an accurate, complete quote than the fastest one.
Project ID: 40662890
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272 freelancers are bidding on average $162 USD for this job

Hello, ✅ Your goal is clear: keep the exact Netlify utility app experience, but package it cleanly for iOS/Android with in-app purchases, push notifications, and smooth App Store / Google Play approval. We’re a React/Vue/Next/JS team with 8+ years in frontend delivery, and Top Rated on Freelancer with long-term JS engagements. Shipped 80+ React/Next/Vue apps — dashboards, SaaS UIs, e-commerce frontends. For this project, we’d likely use Capacitor as the wrapper so your existing HTML/CSS/vanilla JavaScript app can stay intact while we add native layers for IAP, push notifications, icons, launch screens, permissions wording, signed builds, and store-compliance tweaks. We’ll also check the external libraries carefully to avoid asset or script conflicts and leave clean build instructions for future updates. Two quick frontend/implementation questions: 1. Are your in-app purchases one-time unlocks or subscriptions, and do you already have the product IDs set up in App Store Connect / Google Play Console? 2. For push notifications, do you already use a provider/backend for tokens and sends, or should that flow be set up as part of the wrapper work? Drop me a message — happy to align on stack, submission flow, and a single fixed quote for both platforms. **Please let me know your thoughts. Looking forward, Roman**
$137 USD in 7 days
10.0
10.0

Hi, I can take your existing Netlify HTML/CSS/JS app and turn it into store-ready iOS and Android apps without changing the core web behavior. I’m comfortable using a wrapper approach like Capacitor and handling the key pieces you mentioned: in-app purchases, push notifications, assets, permissions, signed builds, and submission guidance through both stores. Since your developer accounts are already ready, that helps streamline the release process. I can also keep the wrapper/build setup clean so future updates are easy to reproduce.
$229 USD in 14 days
9.7
9.7

Hi there, We understand you need to convert your existing HTML utility web app into native iOS and Android apps, with in-app purchases and push notifications integrated, while ensuring compliance with both Apple and Google store guidelines. Our team at Webbook Studio has experience with similar projects, such as a music voting mobile app built with React Native and a furniture store mobile shopping app using Flutter. We're proficient in using wrappers like Capacitor or React Native WebView to achieve the desired result. We'll deliver signed builds, guide you through the submission process, and provide post-launch support to ensure a smooth review process. One question: do you have any specific design requirements or preferences for the mobile app icons, launch screens, and permissions wording? Feel free to message us to discuss the details! — Webbook Studio
$40 USD in 3 days
9.1
9.1

Hi there, I understand you need to convert your existing HTML utility web app into a mobile application. I can help you transform your current Netlify-hosted web app into a native mobile experience while preserving all functionality. My approach includes: - Converting your vanilla JavaScript to work within a mobile framework - Integrating necessary external libraries properly for mobile deployment - Ensuring responsive design works across different mobile screen sizes - Maintaining all existing features and user interactions - Using Cordova/PhoneGap or similar technology to package your app for mobile stores I'll handle the complete migration process while keeping your original code structure intact and ensuring smooth performance on both iOS and Android platforms. Best Regards, Khorshed Alam, RS Software
$130 USD in 5 days
9.1
9.1

Hello, i can Wrap/Convert your website into Android and iOS applications quite quickly. Share the website URL so i can provide you Demo app for you testing. i'll need from you... 1: apps name 2: app logo 1024x1024 PNG 3: welcome screen image 1080x1920 png 4: App Store and play store accounts. 5: i'll send you form for upload details. 6: banner image for play store 1024x500 png 7: privacy policy url.
$400 USD in 5 days
8.8
8.8

Hi, I reviewed your utility web app on Netlify and I understand you want the same experience packaged and submitted for iOS and Android store approval. The goal is a native install wrapper with Capacitor/Cordova or comparable tooling, while keeping the existing HTML, CSS, and vanilla JavaScript behavior consistent. I’ll wrap the current site as a mobile-ready WebView build, carry over the external libraries, and implement mobile-only requirements for in-app purchases and push notifications. I’ll also handle icons, launch screens, permissions wording, and other store-compliance tweaks so it matches current Apple and Google guidelines. I’ll ensure clean, well-commented build steps and responsive support through review feedback until both versions are live. Let’s discuss here now.
$150 USD in 7 days
8.5
8.5

Hi, I checked your "Convert HTML Utility App Mobile" project description, it looks like the focus is on delivering a clean, responsive website that works well across all devices. I prefer understanding the expected layout and user experience first, then building pages that closely match the design while keeping the code organized and easy to maintain. Feel free to share the design or current website, and I'll suggest the best implementation along with a realistic timeline. Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.
$98 USD in 4 days
8.0
8.0

Integrating reliable in-app purchases and persistent push notifications inside a vanilla JS wrapper while satisfying strict Apple and Google compliance guidelines is the trickiest part of this job. My approach is to use Capacitor to bundle your Netlify HTML, CSS, and JS codebase, ensuring all external libraries transition smoothly without conflicts while implementing the native IAP and notification plugins cleanly. I have extensive experience working across platforms and handling the full scope of web work, from simple landing pages to complex custom-built platforms. I will handle all icons, launch screens, permissions wording, and generate the signed builds you need. My all-in quote is $120.65 to cover both platforms, the integration work, and post-launch support for any review feedback, delivered within 7 days. Let's get your utility app live in both stores—feel free to reach out so we can get started.
$120.65 USD in 7 days
8.1
8.1

Hello, I am Dr. Rajesh Rolen, PhD in Computer Science & Engineering, with experience of over 20+ years in Mobile App Development, Mobile Development, React Native, Web Development, JavaScript, CSS, HTML, Ionic Framework As a preferred freelancer in the top 1%, I have done 400+ projects here on freelancer.com, I have 4.9 ratings out of 5 on average, which showcases my quality of work and timely delivery. Key Highlights: - Free Hosting Support on the Cloud or any desired platform. - Free 3 months of post-delivery support to ensure that our client doesn’t face any challenges after the launch of the project. - Free Dedicated tester on projects to ensure quality delivery, so clients don’t need to act as a tester. - 10+ Years experience UI/UX team to ensure intuitive UI. Portfolio: https://www.freelancer.com/u/Microlent Please open the chat and send me a message, so we can have a more detailed discussion about the project to give you the project timeline and cost. Thank you for considering my services. I look forward to engaging in a productive conversation and understanding how I can be of assistance in bringing your project to life. Regards Rajesh Rolen
$140 USD in 10 days
8.6
8.6

Hi, You already have the hard part done: a working utility app with real behavior, not a blank concept. I can wrap your Netlify HTML/CSS/vanilla JS app into compliant iOS and Android builds, keep the current experience intact, and add the mobile-only pieces that usually break store approval if they’re not handled carefully. I’ve built and packaged web apps with Capacitor/Cordova-style wrappers, integrated in-app purchases and push flows, and handled the store-side details like icons, splash screens, permissions, and review fixes. I’ll make sure the external libraries stay stable inside the wrapper, then guide you through App Store Connect and Google Play Console until both versions are live. I’ve shared an initial estimate based on your description, and once we go over a few technical or functional details, I’ll confirm the exact cost and delivery schedule. Could you tell me which IAP model you want on both platforms, and whether push will use one provider or separate iOS/Android setups? Also, do you already have the final app IDs, package names, and store metadata ready? Looking forward to your reply so we can finalize the exact plan. Thanks, Asad
$75 USD in 3 days
8.1
8.1

Hello, Convert HTML Utility App Mobile Developer {{{ I HAVE CREATED SIMILAR BEFORE AND I CAN SHOW YOU }}} I have carefully reviewed your requirements and understand that you need your existing HTML/CSS/JavaScript Netlify app packaged for both iOS and Android while preserving the current experience and adding native IAP and push notifications. I have 11+ years of software development experience and can use Capacitor or a similar lightweight wrapper to create maintainable iOS/Android builds. I will handle native configuration, in-app purchases, push notifications, icons, splash screens, permissions, external library compatibility, signing, and store-compliance requirements. I will provide reproducible build instructions, signed builds, assist with App Store Connect and Google Play submission, and support the project through launch and review feedback. I eagerly await your positive response. Thanks, Christina
$140 USD in 7 days
8.5
8.5

Hello, Greetings Hope you are doing well. I am a Mobile Application developer with over 5 years of experience. I am confident in my ability and skills to develop high-quality Mobile apps and would like to work on your convert html to app project. I will complete the work as per your requirements. I want to discuss more this project to prepare the final concept. So let’s discuss this in detail over chat then will make plans to start work on it. Waiting for your earliest reply. Thanks. Shubham
$125 USD in 12 days
8.0
8.0

Your brief is nicely defined, and yes, this can be done by wrapping the current web app and extending it only where mobile-specific features are needed. I can package it for both platforms, bring over the required external libraries carefully, set up push and in-app purchases, and help you through submission until both versions are live. I’ll also make sure the build steps are documented so future releases are not a headache. Happy to discuss the current app structure through here before we begin.
$199 USD in 14 days
7.9
7.9

Hey there, After carefully reviewing the details, the main challenge here is keeping your existing web app unchanged while making the mobile wrapper behave like a proper store ready application. I would avoid rewriting the utility in a new framework unless there’s a specific blocker, and instead use a suitable wrapper around the current HTML/CSS/JavaScript with native bridges for purchases and push notifications. I would pay particular attention to the parts that tend to cause store issues: purchase restore/state handling, notification behavior when the app is closed, permissions wording, external library loading and the required signing/store assets. Your existing Apple and Google developer accounts also mean the submission can stay under your ownership. I’d deliver both signed builds, submission guidance, reproducible build instructions and stay involved through the review feedback. Do you already have the existing app source and Netlify repository available, including the external library references? Best regards, Hammad Hassan
$320 USD in 10 days
7.9
7.9

⭐⭐⭐⭐⭐ Convert Your Web App into Native Mobile Apps for iOS and Android ❇️ Hi My Friend, I hope you are doing well. I reviewed your project needs and see you are looking for someone to convert your web app into native mobile apps. You don’t need to look further; Zohaib is here to help! My team has successfully completed over 50 similar projects for mobile app development. I will wrap your existing Netlify site using Capacitor or Cordova, ensuring it meets all store guidelines. I will also integrate in-app purchases and push notifications, just as you need. ➡️ Why Me? I can easily handle your project as I have 5 years of experience in mobile app development, focusing on HTML, CSS, and JavaScript. My skills include app wrapping, feature integration, and store compliance. Additionally, I have a strong grip on deployment processes for both Apple and Google stores. ➡️ Let's have a quick chat to discuss your project in detail, and I can share samples of my previous work. I look forward to chatting with you! ➡️ Skills & Experience: ✅ HTML/CSS ✅ JavaScript ✅ Capacitor ✅ Cordova ✅ React Native WebView ✅ In-App Purchases ✅ Push Notifications ✅ App Store Submission ✅ Google Play Console ✅ Mobile App Development ✅ Store Compliance ✅ Debugging Waiting for your response! Best Regards, Zohaib
$150 USD in 2 days
7.8
7.8

Hi, I’ve read your scope carefully, and I’m confident I can turn your existing HTML/CSS/JavaScript utility app into store-ready iOS and Android apps with a reliable wrapper approach that meets Apple and Google guidelines. I can package the current web experience, preserve your external library behavior, and handle App Design details like icons, launch screens, permissions, signing, and submission support. My experience in Mobile App Development includes wrapping web apps for native deployment, integrating push notifications and in-app purchases, and guiding clients through review and release. For your build, I’d use a stable Ionic Framework/Capacitor-based workflow or a comparable wrapper where needed, test restore/reporting flows on real devices, and provide clean documentation for future updates. I can deliver signed builds and help you move through App Store Connect and Google Play submission within the next 2 weeks, including light post-launch review feedback support. Do you already have a preferred provider for in-app purchases and push notifications, or should I recommend the most review-safe setup? Best regards, KANIKA
$250 USD in 14 days
6.9
6.9

Hi there, I read your project "Convert HTML Utility App Mobile" and it matches what I do with CSS, HTML, Web Development, React Native. I have delivered similar work before and can start right away. I can complete it in 7 days for 275 USD, revisions included. Can you share any extra details or files so I can confirm the scope? Happy to start today.
$275 USD in 7 days
6.6
6.6

Your Netlify app can reach both stores without rebuilding the working web experience. I’d use Capacitor to package the existing HTML, CSS, JavaScript, and external libraries, then add native in-app purchases and APNs/FCM push notifications. I’ll test purchases, receipt reporting, Apple’s required restore flow, and notifications in foreground, background, and closed states on real devices. Assets will be bundled where needed so external-script loading doesn’t cause store-build failures. The submitted bid is my all-in quote for iOS and Android builds, icons, launch screens, permission text, signing, store submissions, review feedback, and light post-launch support. You’ll also receive clear build instructions for future Netlify updates. Before packaging, I’d review the current site and purchase flow to catch any WebView or store-policy issue early. Which service currently sends your push notifications, and where are purchase entitlements stored?
$100 USD in 7 days
6.7
6.7

Hi, I understand the key challenge is turning the existing Netlify app into store compliant mobile builds without changing its current behavior, while making purchases and push notifications reliable on real devices. I can wrap the HTML, CSS, and JavaScript app with Capacitor, handle native configuration, assets, permissions, in app purchases, push notifications, and resolve any library conflicts. I will provide signed builds, submission guidance for both stores, and stay available for review feedback and launch support. Business Idea since the core app already works, I would keep the mobile version lightweight and use native features only where they improve retention or revenue. Are the in app purchases already configured in both developer accounts?? NOTE: I have carefully gone through your project details and can assuredly deliver what you require. My portfolios, https://www.freelancer.pk/u/zainalitariq245 Looking forward to discussing your project further. Best Regards, Zain A.
$200 USD in 10 days
6.8
6.8

Understanding the need to convert your web app into native iOS and Android applications, our team is prepared to ensure a seamless transition while enhancing essential features like reliable reminder notifications. We will use Capacitor or Cordova to wrap the existing app, focusing on the native notification engine. This will ensure calendar and personal module reminders function correctly, even when the app is closed. Our team will also audit any embedded content for Google account sign-in requirements. With experience in native app development and a strong grasp of security measures, we’ll implement a PIN lock and recovery system for the personal module, ensuring user data remains protected. Also, communication, quality, and on-time delivery are priorities. If you'd like, I can also share similar work we've completed and discuss the best approach for your project. You pay for quality. We deliver it. Regards, JP
$150 USD in 7 days
6.8
6.8

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