VMG Tension vs SailViewer Timer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VMG Tension
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This app associates to VMG tension meter which is the first electronic tension for all dingy and small offshore sailors. The VMG tension gauge makes rigging set up easier and more accurate. For wires 2-5mm and up to 500kg tensions it is suitable for over 100 classes.
SailViewer Timer
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Sailing timer. Speaks time to start. Also can show start line data if line is pinged.
Screenshots
Verdict
The clearest difference is update cadence: SailViewer Timer at every 10 days against VMG Tension's every 4 months. VMG Tension's advantage is iOS requirement (9.0 vs 17.2). 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.
VMG Tension ships an update every 4 months, SailViewer Timer every 10 days. The most recent releases landed on October 3, 2026 and September 30, 2026 respectively.
| Parameter | VMG Tension | SailViewer Timer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 17.2 |
| Further details — not scored | ||
| Size | 39 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | ABOVE Digital Media | Master Sailing jdoo |
In-app purchases
VMG Tension
No in-app purchases
SailViewer Timer
No in-app purchases
Questions
Is VMG Tension free?
Is SailViewer Timer free?
Do VMG Tension or SailViewer Timer have ads?
Which is updated more often, VMG Tension or SailViewer Timer?
Other comparisons
