# Sitrax vs G21

Sitrax and G21 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Sitrax ships an update every 2 weeks, G21 monthly. The most recent releases landed on October 17, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Sitrax | G21 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Size | 83 MB | 63 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SITALLCOM SISTEMAS INTELIGENTES LTDA](https://appshunter.io/developer/1526495577) | [Eliano da Paixao Santana](https://appshunter.io/developer/1631438871) |

## What reviewers say

### Sitrax

[App page](https://appshunter.io/ios/app/sitrax/id1526495575)

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

**In-app purchases:** none


### G21

[App page](https://appshunter.io/ios/app/g21/id6479374003)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sitrax free?

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

### Is G21 free?

G21 is free to download, with no in-app purchases.

### Do Sitrax or G21 have ads?

Neither Sitrax nor G21 shows ads.

### Which is updated more often, Sitrax or G21?

Sitrax ships an update every 2 weeks, and G21 monthly. Most recently, Sitrax was updated on October 17, 2026 and G21 on October 12, 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.*