rectify vs WatchMyBack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
rectify
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With rectify, you can effortlessly track your posture and boost your back health throughout the day. The smart sensor shirt precisely maps the shape and movement of your spine, sending real-time data to the app. Whenever you start to slouch or move out of alignment, a gentle vibration reminds you to rectify your posture and movements. The app then gives you detailed insights into your mobility, sitting habits, and posture patterns. Based on your data, rectify recommends targeted exercises to keep your back strong and pain-free. And for a bit of fun: compare your stats with friends or colleagues. Who’s got the best posture?
WatchMyBack
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WatchMyBack helps you improve posture, sit smarter, and protect your eyes: • Posture alerts: Notifies you when you slouch, lean, or sit sideways. • Reduce discomfort: Supports your back and neck. • Better eye health: Maintain a healthy distance while reading or writing. • Gentle voice reminders: Alerts you without being distracting. • For desk warriors: Perfect for students, remote workers, and more. This app is FREE. I made it for my 9-year-old daughter with a bit of help from AI.
Screenshots
Verdict
The clearest difference is in-app purchases: WatchMyBack at none against rectify's 1. WatchMyBack also leads on ads (none vs shown). rectify's advantage is update cadence (every 5 days vs every 2 weeks) and device support (4 vs 2). On price and iOS requirement 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. rectify sells 1 in-app purchase, starting at $4.99 per month. WatchMyBack asks for nothing beyond the download.
rectify ships an update every 5 days, WatchMyBack every 2 weeks. The most recent releases landed on September 12, 2026 and September 5, 2026 respectively.
| Parameter | rectify | WatchMyBack |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 days — better | Every 2 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 16.0 |
| Further details — not scored | ||
| Size | 189 MB | 10 MB |
| Age rating | 12+ | 4+ |
| Developer | MinkTec GmbH | Ta Wei Tan |
In-app purchases
rectify
- AirPods Head Tracking$4.991 Month
WatchMyBack
No in-app purchases
Questions
Is rectify free?
Is WatchMyBack free?
Do rectify or WatchMyBack have ads?
Which is updated more often, rectify or WatchMyBack?
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