rectify vs Flow Coach AI
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?
Flow Coach AI
This AI-powered coach creates personalized training plans for athletes who participate in multiple sports and have varied schedules. It adapts to your unique training needs, whether you're balancing running and lifting or preparing for a race while managing daily life.
- Personalized AI training plans
- Adapts to multiple disciplines
- Dynamic schedule integration
- Supports endurance and strength
- Early access invite-only
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Most training apps assume one sport and a week that repeats. Neither is true for you. Flow Coach AI is built for athletes who train across more than one discipline — running and lifting, endurance and strength, a race on the calendar and a barbell in the garage — and who are nearly always carrying something. EARLY ACCESS Flow Coach AI is currently invite-only. If someone sent you an invite, you can create an account right away. If not, join the waitlist.
Screenshots
Verdict
The clearest difference is in-app purchases: Flow Coach AI at none against rectify's 1. Flow Coach AI also leads on ads (none vs shown). On price, update cadence, device support 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. Flow Coach AI asks for nothing beyond the download.
rectify ships an update every 3 days, Flow Coach AI every 4 days. The most recent releases landed on October 1, 2026 and October 5, 2026 respectively.
| Parameter | rectify | Flow Coach AI |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 days — better | Every 4 days |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod, Apple Watch | iPhone, iPad, iPod, Apple Watch |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 189 MB | 202 MB |
| Age rating | 12+ | 12+ |
| Developer | MinkTec GmbH | Flow Coach AI, Inc. |
In-app purchases
rectify
- AirPods Head Tracking$4.991 Month
Flow Coach AI
No in-app purchases
