Mobile App for Daily Puzzle Game (iOS & Android – Gamified, Reward-Based)

We’re seeking an experienced mobile app developer (or small team) to design and build a gamified mobile app for both iOS and Android. The app delivers a daily challenge to users, rewards engagement with a points system, includes prize draws, and features unlockable collectibles and referral bonuses.

Key details:

Core mechanic: daily multiple-choice question

Users earn points for participation, streaks, referrals, and profile completion

Visual reward system with unlockable badges and achievements

Monthly and daily prize draw eligibility based on performance

Public user profiles with avatars, badges, and location info

Optional premium tier to remove ads and unlock extras

Admin panel to upload challenges and manage prizes

Monetization via rewarded video ads (no in-app purchases at this stage)

Design style: fun, accessible, and sea-themed (we’ll provide references).
Animations: light microinteractions (e.g., glowing badges, pulsing elements)

We’re open to frameworks like Flutter or React Native if cross-platform is more efficient.
Please include:

Estimated cost range (ballpark is fine for now)

Rough delivery timeframe

Link to relevant portfolio apps (especially if gamified or quiz-based)

We’ll share a detailed spec and assets with shortlisted candidates.
A signed NDA may be required at the next stage.