Comparison

FormLab vs White Stone

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

Head to head
About

FormLab

Features
Read full description

FormLab is a personal trainer app that analyzes your workout form in real time using your iPhone camera and Apple Vision AI. β—† Real-Time Form Analysis Simply point your camera at yourself and AI instantly detects joint positions, analyzing your squat movement in real time. No wearable devices needed. β—† 7 Form Issues Auto-Detected β€’ Knee Valgus (Knee Caving In) β€’ Insufficient Depth β€’ Excessive Forward Lean β€’ Heel Rise β€’ Left-Right Asymmetry β€’ Butt Wink β€’ Hip Mobility Issues β—† Side + Front Analysis Side view analyzes depth, forward lean, and heel position. Front view analyzes knee alignment and asymmetry. β—† Detailed Post-Workout Report After each session, receive a grade (Excellent/Good/Fair/Needs Work), form score, perfect form ratio, depth achievement rate, and more. β—† Workout History & Video Replay All workout records are saved automatically. Review recorded videos with an issue timeline to see exactly when form problems occurred. β—† FormLab Pro One-time purchase, use forever: β€’ No ads β€’ Unlimited reps per session β€’ Unlimited workout history β€’ Workout recording β€’ Issue timeline Form analysis and video processing stay on-device. For Pro users, workout records may be stored on our server for secure cloud sync when connected to the network. Workout videos are not uploaded.

About

White Stone

Features
Read full description

White Stone is a mental tracking app that helps spiritual practitioners track the goodness of their thoughts & actions throughout their day. This track record is intended to spark joy and inspiration, as users reflect on their past good actions. It allows the user to: - log a White Stone or Black Stone, based on the user's mental state during a bodily, verbal or mental action - log whether the emotional root was based on renunciation, kindness, gentleness or other emotions that the user can create - log whether the emotion was strong or weak - add a response to a reflection question, inspired by a series of Buddhist reflection questions - review and see patterns over time The app stores all data locally on the device: nothing gets shared nor sold, and is completely private to the user. --- This app is inspired by Upagupta, the spiritual teacher of the ancient Indian Emperor Ashoka. β€œUpagupta … was a native of the Madura country. 
His instructor … told him to keep black and white pebbles. 
 When he had a bad thought he was to throw down into a basket a black pebble; 
when he had a good thought he was to throw down a white pebble.
 Upagupta did as he was told. 
At first bad thoughts abounded, and black pebbles were very numerous. Then the white and black were about equal. On the seventh day there were only white pebbles. (His instructor) then undertook to expound to him the four truths.” - Chinese Buddhism, Joseph Edkins, 1893, p.68

Screenshots

FormLab4 screens
White Stone4 screens

Verdict

The call

The clearest difference is in-app purchases: White Stone at none against FormLab's 1. White Stone also leads on ads (none vs shown). FormLab's advantage is update cadence (every 5 days vs every 5 weeks). On price, device support and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. FormLab sells 1 one-off in-app purchase. White Stone asks for nothing beyond the download.

UpkeepUpdate frequency

FormLab ships an update every 5 days, White Stone every 5 weeks. The most recent releases landed on October 5, 2026 and October 19, 2026 respectively.

Scorecard3 real differences Β· 3 level
FormLab versus White Stone: the parameters behind the verdict, then further details
ParameterFormLabWhite Stone
PriceFreeFree
Update frequencyEvery 5 days β€” betterEvery 5 weeks
AdsYesNo β€” better
In-app purchasesYesNo β€” better
DevicesiPhoneiPhone, iPad β€” better
Requires iOS17.017.0
Further details β€” not scored
Size6 MB2 MB
Age rating12+4+
DeveloperAcconectoPeijing Teh

In-app purchases

1 purchases

FormLab

One-time1
  • FormLab Pro$3.99
None

White Stone

No in-app purchases

Questions

Is FormLab free?
FormLab is free to download, with in-app purchases available.
Is White Stone free?
White Stone is free to download, with no in-app purchases.
Do FormLab or White Stone have ads?
FormLab shows ads; White Stone does not.
Which is updated more often, FormLab or White Stone?
FormLab ships an update every 5 days, and White Stone every 5 weeks. Most recently, FormLab was updated on October 5, 2026 and White Stone on October 19, 2026.

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