DS Heart Rate vs ChiMaster App
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
DS Heart Rate
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Estimate your pulse with the iPhone camera in about 16 seconds, then follow clear, private heart-rate and BPM trends. DS Heart Rate is a general wellness and fitness tracker. Rest a fingertip over the rear camera and flash; the app analyzes subtle color changes on device and produces an estimated BPM. No account, external sensor, ads, or analytics are required. FREE TO START. LIFETIME PRO. β’ Your first 5 real measurements are free, followed by 1 free measurement every day β’ A one-time Lifetime Pro purchase unlocks unlimited measurements, month/year trends, Apple Health writing, daily reminders, and supported on-device insights β’ No subscription or ads; all saved readings and CSV export always remain available FAST CAMERA ESTIMATES β’ Live signal-quality guidance helps you cover the camera and flash correctly β’ A stable estimate appears after about 16 seconds of usable signal β’ Add context such as resting, before exercise, after exercise, stress, or bedtime UNDERSTAND PERSONAL TRENDS β’ Today overview, latest reading, 7-day average, and measurement streak β’ Weekly trends are free; Lifetime Pro adds month and year charts β’ Add notes, view every saved reading, and export CSV at any time PRIVATE BY DESIGN β’ Camera frames are processed only in memory; no photos or video are saved β’ Readings stay on device and are excluded from this app's iCloud backup β’ No account, advertising, analytics, or developer-operated server β’ Apple Health is optional: the app writes only estimates you choose to save and does not read existing Health data β’ Supported on-device insights use Apple's private model without sending readings to a developer server METHOD AND LIMITATIONS DS Heart Rate uses camera photoplethysmography (PPG) to estimate pulse timing and checks finger coverage and signal quality. Motion, cold fingers, pressure, skin perfusion, ambient light, flash heat, and camera hardware can affect results. IMPORTANT DS Heart Rate is not a medical device and has not been clinically validated against a regulated medical device. Results are for general wellness trends only. Do not use the app for diagnosis, treatment, emergencies, or to delay care. Consult a qualified healthcare professional if you have concerning symptoms or persistently unusual readings.
ChiMaster App
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Using natural source of energy - heat (Akabane method), you can test fullness of the 12 energy meridians on your hands and feet (according to Traditional Chinese Medicine, TCM), and calculate level of their balance. Using same tool you can correct the imbalances. You can also assess the energy and balance of your Chakra system. Program also provides assessment of your energy based on the 5-elements approach. It is possible to heat (transfer the energy) any acupuncture point.
Screenshots
Verdict
The clearest difference is in-app purchases: ChiMaster App at none against DS Heart Rate's 1. ChiMaster App also leads on update cadence (every 11 days vs every 85 months) and device support (3 vs 1). On price, ads 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
Both are free to download. DS Heart Rate sells 1 one-off in-app purchase. ChiMaster App asks for nothing beyond the download.
DS Heart Rate ships an update every 85 months, ChiMaster App every 11 days. The most recent releases landed on October 8, 2026 and October 3, 2026 respectively.
| Parameter | DS Heart Rate | ChiMaster App |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 85 months | Every 11 days β better |
| Ads | No | No |
| In-app purchases | Yes | No β better |
| Devices | iPhone | iPhone, iPad, iPod β better |
| Requires iOS | 16.0 | 15.0 β better |
| Further details β not scored | ||
| Size | 3 MB | 38 MB |
| Age rating | 4+ | 12+ |
| Developer | ζθΏͺ ζ | Med Bait OOO |
In-app purchases
DS Heart Rate
- Lifetime Pro$1.99
ChiMaster App
No in-app purchases
Questions
Is DS Heart Rate free?
Is ChiMaster App free?
Do DS Heart Rate or ChiMaster App have ads?
Which is updated more often, DS Heart Rate or ChiMaster App?
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