viiiv vs DYNOSTICS by uVida
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
viiiv
This app facilitates isometric strength training by connecting to specialized hardware. It allows users to select from various exercises, track real-time force data, and view progress reports with trend graphs. Users can log their sessions, create group accounts for clients, and share detailed performance summaries.
- 8+ isometric exercises
- Real-time force data graphing
- User account for data logging
- Group accounts for clients
- Progress reports with trend lines
- Sharable 2-page session reports
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Choose from 8+ exercises and graph real-time force data while performing isometric strength training exercises on the ViiV-Rx. This app will not function without the viiiv Pro machine to connect to - see https://viiivfitness.com Log into your User account to save and track your exercise data or use in Guest Mode without an account. Or create a Group Account for your wellness business to track all of your clients. Select either 5 (default) or 10 seconds per exercise. A 50% of Previous Best threshold Trigger Start insures maximum effort. Progress Reports with trend line graphs for each user and exercise. A 2-Page Report sharable via email, message, etc. shows Total Overall Strength Improvement after each viiiv session.
DYNOSTICS by uVida
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This is the app you need for the uVida Dynostics metabolism device to perform analyses. All uVida analyses provide professional-level data, can be started with just a few clicks via the app and can be performed in a short time (even without medical expertise). uVida Food and uVida Stress analysis: 5-minute respiratory gas measurement at rest and HRV (Heart Rate Variability) recording. uVida Activity analysis: approx. 15-minute step test on a treadmill or an ergometer. The uVida Food and uVida Stress Analysis provides accurate data about your metabolism at rest and HRV (Heart Rate Variability): Basal Metabolic Rate Power metabolism Fat metabolism Carbohydrate metabolism Total caloric budget Metabolic flexibility Stress Level The uVida Activity Analysis measures the individual pulse ranges, the oxygen uptake, the CO2 output and many other individual values of your customers: Heart Rate Ranges IAAS VO2max Regeneration Max Power Ventilatory thresholds Oxygen uptake Fatmax Note: You need the uVida Dynostics metabolism device to use this application! The results retrieved with our uVida Dynostics metabolism device must not be used to determine a diagnosis or to initiate a therapeutic measure. Rather, the approach is to provide health-conscious people with data for an individually suited food concept and a well dosed movement program, that the multiple positive effects connected with this can happen.
Screenshots
Verdict
The clearest difference is update cadence: DYNOSTICS by uVida at monthly against viiiv's every 2 months. viiiv's advantage is iOS requirement (12.0 vs 16.0). On price, ads, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
viiiv ships an update every 2 months, DYNOSTICS by uVida monthly. The most recent releases landed on October 10, 2026 and October 11, 2026 respectively.
| Parameter | viiiv | DYNOSTICS by uVida |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 36 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Less Is More LLC | uNostics GmbH |
In-app purchases
viiiv
No in-app purchases
DYNOSTICS by uVida
No in-app purchases
Questions
Is viiiv free?
Is DYNOSTICS by uVida free?
Do viiiv or DYNOSTICS by uVida have ads?
Which is updated more often, viiiv or DYNOSTICS by uVida?
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