# GTRS vs 小白快考OA

The clearest difference is iOS requirement: 小白快考OA at 9 against GTRS's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

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

GTRS ships an update every 5 weeks, 小白快考OA every 3 weeks. The most recent releases landed on October 4, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | GTRS | 小白快考OA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.9 (16 ratings)](https://appshunter.io/ios/app/gtrs/id1491879128/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 27.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 219 MB | 25 MB |
| Requires iOS | 15.6 | **9** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [mooer](https://appshunter.io/developer/1384361853) | [脑力开发](https://appshunter.io/developer/1450341282) |

## What reviewers say

### GTRS

[App page](https://appshunter.io/ios/app/gtrs/id1491879128)

Control your GTRS guitar hardware with this app. It offers real-time status updates, quick switching of over 110 effect models, and the ability to load different guitar sample files for varied tones. Features include a virtual footswitch, tuner, metronome, and cloud storage for your files.

**Highlights:** Low latency Bluetooth connectivity, 110+ effect models, Load custom guitar sample files, Virtual footswitch, Built-in tuner and metronome, Cloud file upload/download

**Features:** Vision Pro support

**In-app purchases:** none


### 小白快考OA

[App page](https://appshunter.io/ios/app/oa/id6449732279)

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

**In-app purchases:** none


## Frequently asked questions

### Is GTRS free?

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

### Is 小白快考OA free?

小白快考OA is free to download, with no in-app purchases.

### Do GTRS or 小白快考OA have ads?

Neither GTRS nor 小白快考OA shows ads.

### Which is updated more often, GTRS or 小白快考OA?

GTRS ships an update every 5 weeks, and 小白快考OA every 3 weeks. Most recently, GTRS was updated on October 4, 2026 and 小白快考OA on September 20, 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.*