Comparison

AngleLab vs Rhythm exercise

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

Head to head
About

AngleLab

Features
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AngleLab is an app that attaches two smart sensors and acquires the angle between segments. β– Overview Since it is a digital goniometer application between two segments, when applied to the human body, the relative angle between the parts where the sensor is attached can be obtained as 3-axis data. Sensor data can be monitored in real-time while being recorded on an iPad. In addition, by enabling video recording with the device’s video camera, it is possible to synchronize sensor data and video and play back after measurement. In addition, the resulting data can be output externally as CSV. β– For checking body range of motion! For example, when sensors are attached to the pelvis and thigh, joint angles of X, Y, Z axis: flexion/extension, adduction/abduction, internal rotation/external rotation can be obtained in real time, graphed, and numerical values can be output as CSV. β–  Requirements Xsens DOT sensor is prerequisite to use this app. In addition, it is necessary to obtain a license key issued by HELTEC Co., Ltd. For more information, please contact sensing@heltec.co.jp

About

Rhythm exercise

Features
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An innovative application to help you maintain rhythm and motivation during exercise. It helps you feel and maintain your rhythm using your Apple Watch. Below are the features of this application. Features Various rhythm settings:. Provides sounds and vibrations in a constant rhythm. The sense of rhythm can be easily set and customized to your liking. It can be used for a variety of activities such as exercise, stretching, meditation, etc. Choice of sound and vibration:. The app can provide sound only, vibration only, or both at the same time. This allows you to choose how you feel the rhythm according to your preferences and environment. Wide variety of sounds: More than 50 different sounds are available. More than 50 different sounds are available. Whether you prefer soothing music, encouraging voices, or nature sounds, you can choose the sound that best suits your preferences. Vibration Options:. Eight different vibration patterns are available, allowing you to feel the rhythm of the vibrations on your wrist. This allows you to keep the rhythm even in environments where it is difficult to hear audio. Simple and easy to use:. Offering an intuitive user interface, it's easy to get started: launch the app on your Apple Watch, adjust the settings, and feel the rhythm immediately. It's a dependable partner to support and motivate your exercise routine. Download and enhance your exercise experience!

Screenshots

AngleLab4 screens

Verdict

The call

The clearest difference is price: AngleLab at Free against Rhythm exercise's $1.99. Rhythm exercise's advantage is update cadence (weekly vs every 3 months). On ads, in-app purchases, 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

AngleLab is free to download; Rhythm exercise costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

AngleLab ships an update every 3 months, Rhythm exercise weekly. The most recent releases landed on October 1, 2026 and October 9, 2026 respectively.

Scorecard2 real differences Β· 4 level
AngleLab versus Rhythm exercise: the parameters behind the verdict, then further details
ParameterAngleLabRhythm exercise
PriceFree β€” better$1.99
Update frequencyEvery 3 monthsWeekly β€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPod, Apple Watch
Requires iOS13.013.0
Further details β€” not scored
Size41 MB3 MB
Age rating17+4+
DeveloperHELTEC Co., Ltdryo muranaka

In-app purchases

None

AngleLab

No in-app purchases

None

Rhythm exercise

No in-app purchases

Questions

Is AngleLab free?
AngleLab is free to download, with no in-app purchases.
Is Rhythm exercise free?
Rhythm exercise costs $1.99, with no in-app purchases.
Do AngleLab or Rhythm exercise have ads?
Neither AngleLab nor Rhythm exercise shows ads.
Which is updated more often, AngleLab or Rhythm exercise?
AngleLab ships an update every 3 months, and Rhythm exercise weekly. Most recently, AngleLab was updated on October 1, 2026 and Rhythm exercise on October 9, 2026.

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