Comparison

AngleEyeLite vs FAST!

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

Head to head
About

AngleEyeLite

This app uses AI to automatically detect joint angles in real-time, providing auditory feedback at specified angles. It's designed to help users objectively measure and improve their training depth and neuromuscular control.

Highlights
  • AI-driven automatic joint landmark detection
  • Real-time joint angle calculation
  • Auditory alerts at specified angles
  • Parallel mode for femur-to-floor detection
  • Front and rear camera switching
  • Intuitive and simple design
Features
Read full description

****安定した動作のために、A11 Bionicチップ以上のデバイスでの使用をおすすめします**** ■概要■ AngleEyeは、AIによって各関節のランドマークを自動検出します。検出されたランドマークより関節角度を算出し、得られた角度をリアルタイムで知ることができます。さらには、指定角度で音を鳴らすことができるため、例えばスクワットやデッドリフトの深さを客観的に知ることができます。 筋力トレーニングの効果には、「深い・浅い」などの関節角度に関わる要素が大きな影響を与えますが、トレーニング中に自分自身の関節角度を正確に知ることは難しいです。しかし、当アプリを使用することでそのような悩みは完全に解決されます。 また、ニューロマスキュラーコントロールの評価のために、指定角度と患者さんの思う角度とのギャップを測ることも可能となるため、全てのトレーニーやトレーニングコーチはもちろん、理学療法士や作業療法士などの機能訓練に関わるような医療従事者の方々にも使えるアプリになるかと思います。 シンプルなデザインで直感的に使いやすいデザインであるため、余計なストレスを感じる必要はありません。 ■方法■ 1. アプリを開き、デバイスを対象者の全身がカメラ内に納まるように配置します。 2. 左右でカメラに近い側の脚をLeft・Rightスイッチで選択します。 3. 音を鳴らしたい角度を画面真ん中上部の枠に入力します。(デフォルトは90度) 4. 検出された角度が画面左上に赤文字で表示されます。 ■主な機能■ ・Left・Rightスイッチで選択した脚の関節角度を自動検知します ・画面真ん中上部のテキストボックスで指定した角度で音が鳴ります ・パラレルモードで大腿骨と床の平行を検知して音が鳴ります ・カメラアイコンをタップするとフロントカメラに切り替わります ■注意■ ・対象者以外の人が映らないように撮影してください。 ・撮影する際は、対象者の全身が映るようにしてください。 ・ルーズフィットな服装は検出精度が低下します。 ・Left・Rightスイッチでカメラに近い方の脚を指定してください。 ****For stable operation, it is recommended to use the device with A11 Bionic chip or higher. **** ■Overview■ AngleEye automatically detects the landmarks of each joint by AI. It calculates the joint angle from the detected landmarks, and the obtained angle can be known in real time. Furthermore, it can play a sound at a specified angle, so you can objectively know the depth of a squat or deadlift, for example. Although factors related to joint angle such as "deep/shallow" have a great impact on the effectiveness of strength training, it is difficult to know your own joint angle accurately during training. However, by using our app, such problems are completely solved. It also makes it possible to measure the gap between the specified angle and the patient's desired angle for the evaluation of neuromuscular control, so I think this app can be used not only by all trainees and training coaches, but also by medical professionals such as physical therapists and occupational therapists who are involved in functional training. The design is simple and intuitive, so there is no need to feel unnecessary stress. ■How to use■ 1. Open the app and position the device so that the subject's entire body is within the camera. 2. Select the leg on the left or right that is closest to the camera with the Left/Right switch. 3. Enter the angle at which you want the sound to be played in the frame at the top center of the screen. (Default is 90 degrees) 4. The detected angle will be displayed in red letters in the upper left corner of the screen. ■Main functions■ ・It automatically detects the joint angle of the leg selected by the Left/Right switch. ・The sound is played at the angle specified by the text box in the upper middle of the screen. ・It detects the parallelism between the femur and the floor in parallel mode and sounds a sound. ・Tap the camera icon to switch to the front camera. ■Caution■ ・Please take pictures so that no one other than the target person is visible. ・When taking pictures, make sure that the subject's entire body is visible. ・Loose fitting clothing reduces detection accuracy. ・Use the Left/Right switch to specify the leg that is closer to the camera.

About

FAST!

This app uses AI-powered velocity-based training to help athletes and coaches manage team data, visualize movement speed, and optimize lifts. It supports various exercises and offers advanced features like motion comparison and custom tracking for detailed analysis.

Highlights
  • AI-powered VBT training
  • Team data management
  • Real-time movement speed visualization
  • Motion comparison mode
  • Custom tracking mode
  • Supports various core and Olympic lifts
Features
Read full description

AI-Powered VBT Training for Just $19.99/Year Unlock Elite Performance with Smart Velocity Tracking! Manage your entire team’s training data in one powerful app. Visualize movement speed in real time and optimize every lift. Supported Exercises: // Core VBT Movements // Squat Deadlift Olympic Lifts Bench Press // Advanced Features // Motion Comparison Mode Record and overlay multiple attempts to analyze subtle differences in form and velocity. Custom Tracking Mode Record any movement, select specific body parts, and monitor their speed with precision. Take your training further—whether you're coaching a team or pushing your own limits. Terms of Use: https://tnq-tech.web.app/term_of_use

Screenshots

AngleEyeLite4 screens
FAST!4 screens

Verdict

The call

The clearest difference is in-app purchases: AngleEyeLite at none against FAST!'s 1. FAST!'s advantage is update cadence (every 3 days vs every 2 months) and review sentiment (100% vs 75%). On price, ads and device support 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. FAST! sells 1 in-app purchase, starting at $19.99 per year. AngleEyeLite asks for nothing beyond the download.

UpkeepUpdate frequency

AngleEyeLite ships an update every 2 months, FAST! every 3 days. The most recent releases landed on September 7, 2026 and September 20, 2026 respectively.

Scorecard5 real differences · 3 level
AngleEyeLite versus FAST!: the parameters behind the verdict, then further details
ParameterAngleEyeLiteFAST!
PriceFreeFree
Positive reviews75.0% of reviews100.0% of reviews — better
Update frequencyEvery 2 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size9 MB128 MB
Age rating4+4+
Developer株式会社S-CADETNQ Tech, Co.

Customer experience

AngleEyeLite

Written reviews8 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

FAST!

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

AngleEyeLite

No in-app purchases

1 purchases

FAST!

Subscriptions1
  • Yearly Plan$19.991 Year

Questions

Is AngleEyeLite free?
AngleEyeLite is free to download, with no in-app purchases.
Is FAST! free?
FAST! is free to download, with in-app purchases available.
Do AngleEyeLite or FAST! have ads?
Neither AngleEyeLite nor FAST! shows ads.
Which is updated more often, AngleEyeLite or FAST!?
AngleEyeLite ships an update every 2 months, and FAST! every 3 days. Most recently, AngleEyeLite was updated on September 7, 2026 and FAST! on September 20, 2026.

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