# SIG vs U.V.S.V. / N.V.V.S.U.

The clearest difference is update cadence: U.V.S.V. / N.V.V.S.U. at every 3 months against SIG's every 38 months. SIG's advantage is iOS requirement (11.0 vs 15.0). 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.

SIG ships an update every 38 months, U.V.S.V. / N.V.V.S.U. every 3 months. The most recent releases landed on September 10, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | SIG | U.V.S.V. / N.V.V.S.U. |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 3 months** |
| Size | 14 MB | 46 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [WELDER V.O.F.](https://appshunter.io/developer/1482310066) | [UVSV/NVVSU App](https://appshunter.io/developer/1517044737) |

## What reviewers say

### SIG

[App page](https://appshunter.io/ios/app/sig/id1501243024)

**Features:** macOS Compatibility

**In-app purchases:** none


### U.V.S.V. / N.V.V.S.U.

[App page](https://appshunter.io/ios/app/uvsv-nvvsu/id6446118113)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SIG free?

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

### Is U.V.S.V. / N.V.V.S.U. free?

U.V.S.V. / N.V.V.S.U. is free to download, with no in-app purchases.

### Do SIG or U.V.S.V. / N.V.V.S.U. have ads?

Neither SIG nor U.V.S.V. / N.V.V.S.U. shows ads.

### Which is updated more often, SIG or U.V.S.V. / N.V.V.S.U.?

SIG ships an update every 38 months, and U.V.S.V. / N.V.V.S.U. every 3 months. Most recently, SIG was updated on September 10, 2026 and U.V.S.V. / N.V.V.S.U. on September 14, 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.*