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My Flutter + Firebase app is already live on Google Play with an active subscription model. I now need to introduce a 3-day free-to-use period that applies only to brand-new users; everyone who has ever subscribed or even opened the app before must continue on the current paid flow without interruption. I do not want any in-app, push, or email notifications for this change—the trial should simply expire after 72 hours, redirecting the user to the existing subscription screen. Scope of work • Update the Flutter client and Firebase backend so first-time installs automatically start a single, non-renewable 3-day trial. • Ensure Play Console subscription settings and server-side checks remain compliant with Google billing guidelines. • Preserve all current subscription logic for returning or already-paying users. • Provide clear build instructions and a brief summary of code changes so I can publish the updated APK/AAB myself. Acceptance criteria – A new user can access all premium features for exactly 72 hours from first launch. – After the free window ends, the standard paywall is shown with no loopholes. – Existing users’ subscriptions stay untouched. – All changes compile cleanly in the latest stable Flutter and run on Android 12+.
ID do Projeto: 39987745
10 propostas
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Ativo há 2 meses
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10 freelancers estão ofertando em média ₹2.800 INR for esse trabalho

As a seasoned developer, my team and I have extensive experience in mobile app development and we are proficient in Flutter, the technology stack your project requires. We understand the delicate nature of introducing new features without disrupting the existing functioning system, and we have excelled in similar challenges in the past. Our breadth of expertise extends to Firebase and Google Play Console billing guidelines, so we can ensure that your updated app remains compliant. What sets us apart from the competition is not only our technical proficiency but also our dedication to client satisfaction. We prioritize transparent communication and will provide you with clear build instructions as well as a comprehensive summary of all code changes so you can easily take over control after project completion. Furthermore, our availability 7 days a week means that we remain committed to addressing any concerns or issues related to our work throughout this crucial project. Choosing Prajapati Technologies for this project will not only guarantee an excellent implementation but also solidify peace of mind knowing you have experienced hands guiding your app's evolution. Let's start 72 hours of excellent collaboration on your app's new chapter!
₹5.000 INR em 7 dias
6,2
6,2

⭐ I’m Ready to Add a Safe, Single 3-Day Trial for New Users — ASAP ⭐ Hi Client, I’m Neel Mevada — full-stack mobile dev with production Flutter + Firebase apps and live subscription experience. I’ll add a single, non-renewable 72-hour trial for brand-new users while leaving every existing subscriber or returning user untouched. Recommended approach (safe + anti-abuse): • First launch: perform Firebase Anonymous Auth + create users doc with trial_started_at + trial_used=true/false. • Server-side enforcement: Cloud Function / Firebase endpoint checks trial_used and returns entitlement; client shows premium features when within 72 hrs. On expiry, redirect to existing Play Billing paywall. • Anti-abuse: tie trial to Firebase Auth UID + Firebase Installation ID; mark trial_consumed server-side so reinstalls/clears don’t reuse it. Option: require account creation to convert trial to subscription. • Play Console compliance: I’ll describe two options — (A) recommended: use app-side free trial (no auto-billing) + clear in-app purchase path; (B) use Play Billing’s native free-trial subscription if you want Play to manage trial & billing. I’ll detail implications for each. Portfolio: https://www.freelancer.com/u/neelmevada Ready to start once you share repo/Play Console access details. Regards, Neel S
₹1.450 INR em 7 dias
4,8
4,8

Hi! I can implement this upgrade cleanly without breaking your existing subscription logic. I’ll add a one-time, device/user-based 3-day free access window triggered only on a true first install, handled fully through Flutter + Firebase with no notifications or forced prompts. What I’ll deliver: • Detect first-time users using a secure Firebase flag + local validation to avoid loopholes. • Start a non-renewable 72-hour trial window from first app launch. • Once the timer ends, the user is automatically redirected to your existing subscription/paywall flow—exactly as required. • All existing subscribers & past users stay on the same paid logic with zero disruption. • Google Play Billing settings remain fully compliant (no changes to your subscription SKUs). • Clean, documented code updates + build instructions so you can publish the AAB/APK yourself. • Fully tested on the latest stable Flutter and Android 12+. I’ve built similar logic before with Firebase Auth, Firestore, and Play Billing, so ensuring accuracy and preventing loopholes will be straightforward. Ready to start immediately and ship quickly. Let’s get this update live smoothly.
₹1.050 INR em 7 dias
3,2
3,2

With 13 years of hands-on experience, I bring deep expertise in all required technical and project skills. I’ve successfully delivered high-impact solutions for global clients with precision and reliability. My approach combines efficiency, clear communication, and high-quality output. I’m confident I can exceed your expectations and deliver results on time. Ready to begin immediately.
₹1.050 INR em 7 dias
2,2
2,2

I can update your Flutter + Firebase app to add a seamless 3-day free trial exclusively for brand-new users, while preserving all current subscription logic for existing or returning users. The trial will automatically start on first launch, expire after 72 hours, and redirect to your existing paywall, fully compliant with Google Play Billing guidelines. I’ll provide clean code changes, clear build instructions, and ensure the updated app runs smoothly on Android 12+ without affecting any current subscribers. Looking forward for your positive response in the chatbox. Best Regards, Arsalan H
₹600 INR em 7 dias
2,0
2,0

Hi, I've reviewed your project and completely understand your requirements. My 4+ years as a Flutter Developer and expertise in AI (Master's in AI, UMT) perfectly match your needs. I have proven experience with Indian market apps like Matka, UPI, DTH recharge, and doctor appointment systems. I deliver high-performance Android/iOS apps with robust backends (Firebase, Laravel, Node.js). My focus is on integrating intelligent AI features and providing custom AI solutions to make your project stand out. I prioritize dedicated collaboration to ensure precise results. Let's discuss how my skills can bring your vision to life for the Indian audience. Looking forward, Muhammad Umair
₹1.050 INR em 2 dias
0,7
0,7

Hello, I understand your requirement to add a one-time 3-day free trial for brand-new users, while keeping all existing subscription logic fully intact. I will update both your Flutter app and Firebase backend so the trial is automatically activated on first install, lasts exactly 72 hours, and then routes users back to your current paywall with no notifications, loopholes, or renewals. I will: Implement a one-time, non-renewable trial for new users only Maintain full compliance with Google Play Billing Ensure existing and past users continue with the paid flow normally Deliver clean, documented code + instructions so you can build and publish easily Fully test on Android 12+ compatibility You will receive: ✔ 3-day trial logic fully working ✔ No disruption to current subscribers ✔ No push/email/in-app notifications ✔ Clean code + summary of changes + build steps I can begin immediately and deliver efficiently. Let’s work together — I’m ready to help.
₹700 INR em 3 dias
0,0
0,0

Hi there, I have read your requirements. Since I am a Flutter & Firebase expert with 10 of my own apps published on Google Play, I understand exactly how to handle subscription states and user logic without violating Google's policies. Here is how I will implement your 3-day trial: User Identification: I will modify the logic to detect "First Time" installs using Firebase Auth (Anonymous) or Device ID checks. Server-Side Timer: I will store a trial_start_time in your Firebase Database. The app will check this timestamp against the server time to ensure the 72-hour limit is strict (users cannot cheat by changing phone time). Separation: I will write a condition to ensure any existing uid or subscriber skips this trial logic completely. Compliance: The transition from "Free Trial" to "Paid Subscription" will be handled smoothly using the official Google Play Billing Library to ensure no policy violations. I can start immediately and provide you with the build instructions. Best Regards,
₹600 INR em 7 dias
0,0
0,0

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