Arcelta: Form Analysis
Angles from your video & photo
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Measure angles from your footage and compare two of them side by side. Any sport. Set the angles once per category and everything stays comparable.
Arcelta finds the joints in your video or photo and shows the angles you choose as numbers.
Put two of them side by side and read the difference directly.
■ Any sport
Baseball, tennis, darts, athletics — anywhere you want to look at body angles.
There are no per-sport presets. You decide what to measure.
■ 25 built-in angles
・Joint angles (how far an elbow or knee is bent)
・Line tilt (how far the shoulder or hip line leans off horizontal)
・Segment tilt (how far the upper arm or thigh leans off vertical)
・Angle between two lines (how far the shoulder line and hip line have opened)
■ Categories decide what gets measured
Group things your way — "Tennis", "My son's pitching" — and set the angles once.
Everything filed in a category is measured the same way, so any two of them line up.
■ Ways to compare
・Side by side, choosing the same instant in each
・Skeletons overlaid, to see the difference in shape (Pro)
・A list of the numeric differences
■ Everything stays on your device
Your footage and your results never leave your phone. No account. No ads. No analytics.
■ Arcelta Pro (optional)
・Angles at once: 4 → unlimited
・Playback speed: 0.5×–1.5× → 0.1×–2×
・Overlay comparison
・Exports without a watermark
$5.49/month or $54.99/year, auto-renewing unless cancelled at least 24 hours before the
period ends. Manage in Settings → Apple Account → Subscriptions.
Cancelling never deletes anything you have saved.
■ Please note
This app is not a medical device and cannot be used for medical or diagnostic purposes.
The angles shown are estimates based on joint positions inferred from footage and are not
guaranteed to be accurate. Arcelta does not score your form or judge it as good or bad.
Terms of Use (EULA): https://past-dandelion-e58.notion.site/Arcelta-Terms-of-Use-3bb372952c858031b554f3d3f37fbf76
Privacy Policy: https://past-dandelion-e58.notion.site/Arcelta-Privacy-Policy-3bb372952c8580e59b6fc6176f343a6c
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, kaito murakami, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- kaito murakami
- Size
- 6.1 MB
- Category
- Sports
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Arcelta Pro (Monthly) $5.49
- Arcelta Pro (Yearly) $54.99
- Copyright
- © 2026 Kaito Murakami