# 一起音基 vs iTheory ‑ ABRSM Exam Guide

The clearest difference is in-app purchases: iTheory ‑ ABRSM Exam Guide at none against 一起音基's 6. iTheory ‑ ABRSM Exam Guide also leads on device support. 一起音基's advantage is iOS requirement (9.0 vs 15.0). On price there is nothing between them.

Both are free to download. 一起音基 sells 5 one-off in-app purchases. iTheory ‑ ABRSM Exam Guide asks for nothing beyond the download.

## The numbers

| Metric | 一起音基 | iTheory ‑ ABRSM Exam Guide |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | — | No |
| Update frequency | — | Every 9 days |
| Size | 31 MB | 122 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Beijing 9 sky new ideas  technology Co., Ltd.](https://appshunter.io/developer/1345903339) | [颖 巫](https://appshunter.io/developer/515330826) |

## What reviewers say

### 一起音基

[App page](https://appshunter.io/ios/app/id1634126096)

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 央音初级 | $29.99 | one-time |
| 国音一级 | $29.99 | one-time |
| 国音二级 | $29.99 | one-time |
| 国音三级 | $29.99 | one-time |
| 央音高级 | $39.99 | one-time |


### iTheory ‑ ABRSM Exam Guide

[App page](https://appshunter.io/ios/app/itheory-abrsm-exam-guide/id6776988802)

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

**In-app purchases:** none


## Frequently asked questions

### Is 一起音基 free?

一起音基 is free to download, with in-app purchases available.

### Is iTheory ‑ ABRSM Exam Guide free?

iTheory ‑ ABRSM Exam Guide is free to download, with no in-app purchases.

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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.*