Delta vs Posture Timer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Delta
This app helps users solve math problems by creating and executing algorithms. It offers tools for homework checking, test preparation, and creating custom quizzes. Users can save, share, and download algorithms via the cloud.
- Create algorithms with natural language
- Execute algorithms to solve math problems
- Create and download custom quizzes
- Save and share algorithms
- Cloud synchronization for algorithms
Read full descriptionHide full description
With Delta: Algorithms, quickly solve any math problem with an algorithm. Save time checking your homework or studying for a test, it’s free! AVAILABLE FEATURES - Create algorithms with an easy and natural language in the editor - Quickly execute algorithms to solve any math problem - Create (or download) a quiz to train yourself - Save your algorithms on your device, share then on the Cloud, or download ready-to-use algorithms shared by other people EXAMPLE OF USAGE - Create an automated calculator for well known theorems or equations - Create a quiz to train solving equations CLOUD SUBSCRIPTION A Cloud subscription is available; It allows you to synchronize your algorithms across your devices and share them with other people on the Cloud. Application developed by Nathan Fallet © 2020 Groupe MINASTE
Posture Timer
Read full descriptionHide full description
PARENTS: Tired of nagging your kids about slouching during homework? Homework Helper uses your iPhone camera to detect poor posture in real-time. Kids get gentle voice reminders and earn points for sitting up straight. No more constant nagging! PROVEN RESULTS: - 78% posture improvement in first week (beta testing) - Kids actually WANT to maintain good posture - Better focus = faster homework completion - Reduce back and neck pain before it starts - Used by 10,000+ families worldwide PERFECT FOR PARENTS WHO WANT: - Their child to develop lifelong healthy posture habits - To stop homework battles with positive reinforcement - A tech solution that actually helps (not hinders) - More independent homework routines HOW IT WORKS: 1. Set homework timer (15, 30, 45, or 60 minutes) 2. Front camera monitors posture in real-time 3. Gentle voice reminders when posture slips 4. Earn points for maintaining good posture 5. Celebrate completion with fun animations KEY FEATURES: Real-Time Posture Detection - Uses advanced Vision framework - Monitors head and neck position - No recording or storage of video - Privacy-first design Gentle Corrections - 10-second grace period - Friendly voice reminders - Visual status indicators (green/yellow/red) - Tracks correction count Gamification - Earn 1 point per minute of focused time - Track total points earned - Celebration animations on completion - Motivates consistent good habits Smart Session Management - Pause automatically if child leaves frame - Resume when they return - Handles phone calls and interruptions - Saves progress on backgrounding Kid-Friendly Design - Bright, engaging colors - Clear visual feedback - Simple, age-appropriate interface - Encouraging positive language SAFETY AND PRIVACY: - All processing happens on-device - NO video recording or storage - NO data sent to servers - NO internet connection required - Only camera permission needed - COPPA compliant REQUIREMENTS: - iOS 15.0 or later - Device with front-facing camera - Works best in well-lit environments IDEAL FOR: - Elementary and middle school students (ages 6-14) - Homework sessions of 15-60 minutes - Building consistent study habits - Remote learning environments PARENT TESTIMONIALS: "Finally, a tech solution that actually helps with posture!" - Beta Tester "My daughter loves earning points for good posture" - Parent Review WHAT IS NOT INCLUDED: This is NOT a content blocker or screen time limiter. It focuses solely on posture and time management during homework. TECHNICAL DETAILS: - Battery-efficient processing (approximately 15-20% drain per hour) - Thermal management for long sessions - Accessibility features (VoiceOver, Dynamic Type) - Portrait orientation only Built by parents, for parents. Help your child develop lifelong healthy posture habits! Download now and make homework time healthier!
Screenshots
Verdict
The clearest difference is in-app purchases: Posture Timer at none against Delta's 3. Delta's advantage is device support (4 vs 2) and iOS requirement (13.0 vs 15.0). On price, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Delta sells 3 one-off in-app purchases. Posture Timer asks for nothing beyond the download.
Both ship on a similar rhythm, roughly monthly. The most recent releases landed on September 29, 2026 and September 17, 2026 respectively.
| Parameter | Delta | Posture Timer |
|---|---|---|
| Price | Free | Free |
| Rating | 3.1 (7 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Monthly | Monthly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 5 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Groupe MINASTE | Chin Jui Kuo |
In-app purchases
Delta
- Donation 1$0.99
- Donation 2$2.99
- Donation 3$4.99
Posture Timer
No in-app purchases









