Flex Lab 可動域メジャー

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About this app

■ Visualize your flexibility "angles" simply by taking a picture with your camera

Flex Lab Range of Motion Measure is an app that uses AI to estimate and record your body angles from your posture captured with your smartphone camera. You can now see the "increase in flexibility"—such as leg splits, pelvic tilt, and middle splits—which were previously only understood through feel, in numerical values ​​and graphs.

■ For those who:
・Want to see the results of their stretching and split exercises numerically
・Want to maintain motivation for daily flexibility training
・Want to manage their range of motion in yoga, ballet, rhythmic gymnastics, gymnastics, martial arts, etc.
・Want to record and present their clients' progress

■ Main Features
・AI-powered estimation of floor split angle (free, unlimited uses)
・Automatically saves measurement results and displays changes in a progress graph
・Displays best records and consecutive records to keep you motivated
・Builts the date into images and saves them to an album
・All data is saved on the device (not sent to our server)

■ Trainer Plan (One-time purchase)
・Unlocks pelvic angle and middle split measurement
・Records measurements for each client and displays changes in client-specific graphs
・Manages names, notes, and measurements on the device (no cloud usage)
・Supports data backup/restore
・No additional charges after one purchase

■ Privacy

All measurements are taken on the device. Photos and client information are not sent to our server. Account registration is not required.

■ Please Note
• The displayed angle is an AI-generated estimate and does not guarantee accurate measurement.
• This app is not a medical device and is not intended for diagnosis or treatment.
• Estimation accuracy varies depending on the shooting environment (brightness, angle, clothing).
• When registering another person's information in the Trainer Plan, please be sure to obtain their consent before use.
Simply take a picture with your camera. The AI ​​will estimate the angles of your leg splits, pelvis, and flexibility, and record the changes in a graph.
Updated on
Aug 7, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    Financial info
  • Data is encrypted in transit
  • Data can’t be deleted

What’s new

初回リリースです。

・写真から開脚の角度をAIで推定
・測定結果を自動保存し、推移をグラフで確認
・ベスト記録・連続記録の表示
・トレーナープラン(買い切り)で骨盤角度・ミドルスプリットの測定と顧客管理を解放

データはすべて端末内に保存されます。
ご意見・ご要望をお待ちしています。
Content rating
Everyone
In-App Purchases
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App support

About the developer
FLEX LAB
mail@flexlab.jp
605-8, YAYOIGAOKA, TEMPAKU-KU NAGOYA, 愛知県 468-0062 Japan
+81 80-6011-5021