# VMG Tension vs SailViewer Timer

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.

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.

## The numbers

| Metric | VMG Tension | SailViewer Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 10 days** |
| Size | 39 MB | 1 MB |
| Requires iOS | **9.0** | 17.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ABOVE Digital Media](https://appshunter.io/developer/1032403825) | [Master Sailing jdoo](https://appshunter.io/developer/1680451361) |

## What reviewers say

### VMG Tension

[App page](https://appshunter.io/ios/app/vmg-tension/id1401255388)

**Features:** macOS Compatibility

**In-app purchases:** none


### SailViewer Timer

[App page](https://appshunter.io/ios/app/sailviewer-timer/id6497406672)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is VMG Tension free?

VMG Tension is free to download, with no in-app purchases.

### Is SailViewer Timer free?

SailViewer Timer is free to download, with no in-app purchases.

### Do VMG Tension or SailViewer Timer have ads?

Neither VMG Tension nor SailViewer Timer shows ads.

### Which is updated more often, VMG Tension or SailViewer Timer?

VMG Tension ships an update every 4 months, and SailViewer Timer every 10 days. Most recently, VMG Tension was updated on October 3, 2026 and SailViewer Timer on September 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*