# SoundSync_PRO2 vs 立教大学校友会公式アプリ

The clearest difference is price: 立教大学校友会公式アプリ at Free against SoundSync_PRO2's $219.99. 立教大学校友会公式アプリ also leads on update cadence (every 5 months vs every 21 months). SoundSync_PRO2's advantage is iOS requirement (9.0 vs 16.1.1). On ads, in-app purchases and device support there is nothing between them.

立教大学校友会公式アプリ is free to download; SoundSync_PRO2 costs $219.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SoundSync_PRO2 ships an update every 21 months, 立教大学校友会公式アプリ every 5 months. The most recent releases landed on September 21, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | SoundSync_PRO2 | 立教大学校友会公式アプリ |
| --- | --- | --- |
| Price | $219.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 5 months** |
| Size | 10 MB | 27 MB |
| Requires iOS | **9.0** | 16.1.1 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Koichi Sato](https://appshunter.io/developer/415286735) | [Rikkyo University](https://appshunter.io/developer/495089630) |

## What reviewers say

### SoundSync_PRO2

[App page](https://appshunter.io/ios/app/soundsync-pro2/id1477647934)

**Features:** macOS Compatibility

**In-app purchases:** none


### 立教大学校友会公式アプリ

[App page](https://appshunter.io/ios/app/id6478473322)

**In-app purchases:** none


## Frequently asked questions

### Is SoundSync_PRO2 free?

SoundSync_PRO2 costs $219.99, with no in-app purchases.

### Is 立教大学校友会公式アプリ free?

立教大学校友会公式アプリ is free to download, with no in-app purchases.

### Do SoundSync_PRO2 or 立教大学校友会公式アプリ have ads?

Neither SoundSync_PRO2 nor 立教大学校友会公式アプリ shows ads.

### Which is updated more often, SoundSync_PRO2 or 立教大学校友会公式アプリ?

SoundSync_PRO2 ships an update every 21 months, and 立教大学校友会公式アプリ every 5 months. Most recently, SoundSync_PRO2 was updated on September 21, 2026 and 立教大学校友会公式アプリ on October 8, 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.*