FitLab Test vs iDIERS
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
FitLab Test
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SMARTPHONE TECHNOLOGY TO MANAGE YOUR HEALTH WHAT INFORMATION CAN FITLAB TEST PROVIDE ME? Fitlab provides you with immediate information about your fitness and your mental state before specific performance situations, such as training sessions and sport competitions, academic exams, interviews and work meetings, or artistic shows. To do so, Fitlab Test offers a stress index based on heart variability parameters, as well as on cognitive and behavioral information, such as your mood, your effort perceptions or your specific recovery behavior. In addition, you can compare your indexes with the results obtained in similar situations by high-level athletes and qualified professionals. HOW CAN FITLAB TEST HELP ME? Fitlab Test can help you understand the factors that affect your sport, academic or work performance. For example, you can analyze individually how your mood states affect your everyday recovery behavior on your stress index. By this way you can obtain conclusions about how to improve your performance. HOW DOES IT WORK? A complete Fitlab Test assessment will take you 5 minutes. The cognitive and behavioral tests must be filled in interactively on the screen itself. The HRV test offers different register possibilities depending on the device model: 1.Through a heart rate chest band connected via Bluetooth (iPhone4s or later; iPod Touch5 16/32/64GB; iPad3 or later). 2.Through your video camera (iPhone4 or later; iPod Touch5 32 GB).
iDIERS
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DIERS is your movement therapy taking into account a holistic analysis of your musculoskeletal system. A unique feature is the collection of biometric measurement data, which allows incorrect posture and its causes to be identified. Based on these findings, your doctor generates an individual training program. The iDIERS medical device is highly recognized by a large number of health insurance companies. The costs are fully covered by private health insurance. Key facts ⢠Development of therapy with sports scientists, physiotherapists, doctors and universities ⢠Preparation of your therapy plan by your doctor ⢠Easy transfer of the therapy plan to the iDIERS app for training that can be done anywhere, anytime ⢠Continuous adjustment of therapy based on your training results ⢠Comprehensive training statistics and pain diary Detailed usage instructions for the iDIERS app With the iDIERS app, you receive an individual training plan, which is based on the medical history, your activity level and biometric data using an algorithm and is controlled by your doctor. Optionally, the data of your spine measurement can be included in the medical history. For your individual therapy, a pool of over 2000 different training exercises is used, which correspond to the latest training science findings and are explained in detail in video instructions to ensure correct execution. This way you always have your personal training with you. You can constantly work on alleviating your back problems and improving your health in order to lead a pain-free life. The training program consists of self-exercises for which no special aids are required. Additionally, by connecting to the Apple Health app, you can view your steps, traveled distance and number of traveled floors in the iDIERS app. The iDIERS app should not be used if certain contraindications are present (e.g., fresh vertebral fractures, acute myocardial infarction). More information on this can be found at https://idiers.de/impressum/privacy-policy-and-terms-of-use/. Enjoy your training with iDIERS!
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Verdict
The clearest difference is in-app purchases: FitLab Test at none against iDIERS's 3. iDIERS's advantage is update cadence (every 2 months vs every 90 months). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. iDIERS sells 3 in-app purchases, starting at $27.49 per month. FitLab Test asks for nothing beyond the download.
FitLab Test ships an update every 90 months, iDIERS every 2 months. The most recent releases landed on October 10, 2026 and October 9, 2026 respectively.
| Parameter | FitLab Test | iDIERS |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 90 months | Every 2 months ā better |
| Ads | No | No |
| In-app purchases | No ā better | Yes |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 11.0 | 11 |
| Further details ā not scored | ||
| Size | 10 MB | 201 MB |
| Age rating | 4+ | 4+ |
| Developer | Health&SportLab | iDIERS GmbH |
In-app purchases
FitLab Test
No in-app purchases
iDIERS
- iDIERS Pro 1 Month$27.491 Month
- iDIERS Pro 1 Month$26.99
- iDIERS Pro 3 Months$79.99









