viiiv vs NeckStrong
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.
NeckStrong
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Isometrics Head Exercise is a simple daily routine designed to help relieve neck pain and tension. Just press start and follow the guided 10-minute session — short, gentle isometric movements that strengthen your neck and shoulder muscles without strain. Features: - Guided 10-minute daily routine - Audio cues so you can keep your eyes closed and focus - Track your sessions, streak and total time - Works fully offline — no account required - Available in English, Spanish, French, Hindi, Portuguese, Russian, Chinese and Arabic Perfect for office workers, students, drivers, and anyone who spends long hours looking at a screen.
Screenshots
Verdict
The clearest difference is ads: viiiv at none against NeckStrong's shown. viiiv also leads on update cadence (every 2 months vs every 80 months) and iOS requirement (12.0 vs 14.0). On price, 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, NeckStrong every 80 months. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.
| Parameter | viiiv | NeckStrong |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 2 months — better | Every 80 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 36 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Less Is More LLC | CloudSpirit Limited |
In-app purchases
viiiv
No in-app purchases
NeckStrong
No in-app purchases









