FormCheck Plus vs HabitStack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FormCheck Plus
Get instant, AI-powered feedback on your workout form. Analyze a single rep to identify what's working, what needs fixing, and how to improve your technique for more effective home exercises. Includes a guided library and progress tracking.
- AI Form Check with score and breakdown
- Guided exercise library
- Workout plans and session log
- Daily readiness check-ins
- Back-care routine
- On-device video analysis
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FormCheck Plus is your AI-powered form coach for confident, effective home workouts. Record one clean rep, tap the toughest moment, and get instant, specific feedback on your form — what's working, what to fix, and how to move better. No timing a shutter mid-rep, and no guessing whether you're doing an exercise right. WHAT YOU GET - AI Form Check: record a rep, pick the hardest frame, and get a Form Score, a joint-by-joint breakdown, plain-language fault flags, and next-rep corrections. - Guided exercise library with setup cues, common mistakes, and back-friendly swaps. - Workout plans plus a session log that tracks your training load and consistency. - Daily readiness check-ins and progress trends so you can train smarter. - A guided back-care routine built around gentle, well-established movements. YOUR CLIPS STAY ON YOUR DEVICE Recording is optional, and access to the camera or your photo library is only ever requested at the moment you choose it. Clips are never uploaded or stored. Only the single frame you pick is sent to our AI service for analysis — and only after you agree in the app — and it is discarded once your report comes back. FORMCHECK PLUS PRO (optional subscription) Unlock unlimited AI form checks, comfort-pattern insights, and a weekly coach summary. - Monthly ($9.99) or annual ($79.99), with a 7-day free trial - Payment is charged to your Apple ID at confirmation - Auto-renews unless canceled at least 24 hours before the end of the period - Manage or cancel anytime in your App Store account settings FormCheck Plus offers general fitness and form guidance and is not a substitute for professional medical advice. Privacy Policy: https://preview.apppublishing.ai/legal/253/privacy Terms of Use (EULA): https://preview.apppublishing.ai/legal/253/terms
HabitStack
Build a morning routine by stacking new habits onto existing anchors. This app guides you through your sequence step-by-step, with a forgiving streak system. Track your progress and see how automatic your routine becomes.
- Stack habits onto existing anchors
- Run morning routine as a guided flow
- Forgiving streak system with grace days
- Momentum Engine for habit automation scoring
- Streak calendar and consistency trends
- Optional Pro subscription for advanced features
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HabitStack helps you build a morning routine that actually sticks. Instead of tracking habits in isolation, you stack small new habits onto the anchors you already do — your first coffee, brushing your teeth — so the whole routine flows in order and nothing gets forgotten. STACK HABITS ONTO ANCHORS Start from something you already do every morning, then stack new habits before or after it. Reorder the stack, set a duration and reminder per step, and build a sequence that feels natural. RUN YOUR MORNING AS A FLOW The Morning Run walks you through the stack one step at a time, so you move through the routine instead of staring at a checklist. A FORGIVING STREAK Keep one streak for the whole routine — with a built-in grace day, skip, and freeze, because one missed morning shouldn't erase weeks of progress. SEE WHAT'S REALLY STICKING The Momentum Engine scores how automatic each routine is becoming and estimates when it could feel effortless — an estimate grounded in habit research, never a promise. Watch your streak calendar and consistency trends build over time. HABITSTACK PRO (optional subscription) The routine builder, morning run, streak, and calendar are free. Pro unlocks multiple routines, your complete history, per-habit consistency, best-time-of-day and weakest-link insights, and shareable weekly reports. - $4.99/month or $29.99/year, with a 7-day free trial - Payment is charged to your Apple ID at confirmation; auto-renews unless canceled at least 24 hours before the period ends; manage or cancel anytime in your App Store settings. Privacy Policy: https://preview.apppublishing.ai/legal/habit-stack/privacy Terms of Use (EULA): https://preview.apppublishing.ai/legal/habit-stack/terms
Screenshots
Verdict
FormCheck Plus and HabitStack are too close to call on the numbers: across 9 compared parameters — price, rating, review sentiment and ratings volume among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. FormCheck Plus sells 2 in-app purchases, starting at $9.99 per month and HabitStack sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for FormCheck Plus against 5.0 for HabitStack. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
| Parameter | FormCheck Plus | HabitStack |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (2 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 1 | 2 — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Freemium |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 34 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Eduardo Duran | JACQUELINE RAE BELLAMY |
Customer experience
FormCheck Plus
HabitStack
In-app purchases
FormCheck Plus
- FormCheck Plus Monthly7 Days trial$9.991 Month
- FormCheck Plus Annual7 Days trial$79.991 Year
HabitStack
- HabitStack Pro Monthly7 Days trial$4.991 Month
- HabitStack Pro Annual7 Days trial$29.991 Year









