Comparison

FormCheck Plus vs Fertility Window Planner

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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

About

Fertility Window Planner

This app helps you identify your fertile window for conception through private data logging and transparent prediction engines. It visualizes your cycle data, including basal body temperature and cervical mucus, to show your most fertile days and predicted ovulation. Core features are free, with an optional subscription for advanced insights and history.

Highlights
  • Log basal body temperature, cervical mucus, and test results
  • Visualize fertile window and predicted ovulation day
  • Transparent prediction engine with chart explanations
  • Private data storage with export and delete options
  • Optional subscription for full cycle history and insights
Features
Read full description

Fertility Window Planner is the calm, private way to find your fertile window while trying to conceive. No ads, no data selling, no AI chatbot — just your own signs, read by a transparent engine that shows its work. LOG YOUR SIGNS IN SECONDS Record basal body temperature (°F or °C), cervical mucus, ovulation-test results, flow, intercourse and symptoms — one tap per day, editable any time. SEE YOUR FERTILE WINDOW The Dawn Arc and a phase-tinted calendar show the six days you're most likely to conceive, your predicted ovulation day, and your next period — each with an honest confidence tier. UNDERSTAND THE 'WHY' A BBT chart draws your temperature curve with the computed coverline, the shaded fertile window and your mucus/OPK markers — so you can see exactly how each prediction was made. Nothing leaves your device to compute it. BUILT FOR PRIVACY Your data is yours: protected by per-account security, never sold, no third-party trackers. Export or delete everything any time. PRO (optional subscription) Unlock full cycle history, cross-cycle chart overlay, personal pattern insights and saved summaries. Core logging and your current fertile-window prediction are always free. - Monthly $6.99 or Annual $39.99, 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 period ends; manage or cancel in Settings Fertility Window Planner is for general wellness and body literacy. It is not medical advice, a diagnosis, or a contraceptive method, and never labels days 'safe' or 'unsafe.' Talk to a healthcare provider about conceiving or any concern. Privacy Policy: https://preview.apppublishing.ai/legal/540/privacy Terms of Use (EULA): https://preview.apppublishing.ai/legal/540/terms

Screenshots

FormCheck Plus4 screens
Fertility Window Planner4 screens

Verdict

The call

The clearest difference is rating: FormCheck Plus at 5.0 against Fertility Window Planner's 4.0. On price, review sentiment, ratings volume 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. FormCheck Plus sells 2 in-app purchases, starting at $9.99 per month and Fertility Window Planner sells 3 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

FormCheck Plus holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Scorecard1 real difference · 9 level
FormCheck Plus versus Fertility Window Planner: the parameters behind the verdict, then further details
ParameterFormCheck PlusFertility Window Planner
PriceFreeFree
Rating5.0 (1 ratings) — better4.0 (1 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings11
Update frequency—Every 9 days
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.115.1
Further details — not scored
Size34 MB37 MB
Age rating4+4+
DeveloperEduardo DuranASHOK KUMAR

Customer experience

FormCheck Plus

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Fertility Window Planner

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

FormCheck Plus

Subscriptions2
  • FormCheck Plus Monthly7 Days trial$9.991 Month
  • FormCheck Plus Annual7 Days trial$79.991 Year
3 purchases

Fertility Window Planner

Subscriptions3
  • Fertility Planner Pro Monthly7 Days trial$6.991 Month
  • Fertility Planner Pro Annual7 Days trial$39.991 Year
  • Fertility Window Planner$39.991 Year

Questions

Is FormCheck Plus free?
FormCheck Plus is free to download, with in-app purchases available.
Is Fertility Window Planner free?
Fertility Window Planner is free to download, with in-app purchases available.
Which has better reviews, FormCheck Plus or Fertility Window Planner?
FormCheck Plus is rated higher. FormCheck Plus averages 5.0 out of 5 from 1 ratings, while Fertility Window Planner averages 4.0 from 1 ratings.
Do FormCheck Plus or Fertility Window Planner have ads?
Neither FormCheck Plus nor Fertility Window Planner shows ads.

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