# OnStem vs RT Analyzer

The clearest difference is in-app purchases: RT Analyzer at none against OnStem's 4. RT Analyzer also leads on ads (none vs shown) and update cadence (weekly vs every 3 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. OnStem sells 4 in-app purchases, starting at $0.99 per month. RT Analyzer asks for nothing beyond the download.

OnStem ships an update every 3 weeks, RT Analyzer weekly. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | OnStem | RT Analyzer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Weekly** |
| Size | 137 MB | 2 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [阳 刘](https://appshunter.io/developer/1616314142) | [航 徐](https://appshunter.io/developer/6808742999) |

## What reviewers say

### OnStem

[App page](https://appshunter.io/ios/app/onstem-local-music-split/id6756013787)

**Features:** Family Sharing, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OnStem Pro – Monthly | $0.99 | per month |
| OnStem Pro – Quarterly | $2.39 | per 3 months |
| OnStem Pro – Annual | $8.99 | per year |
| OnStem Pro – Lifetime | $9.99 | one-time |


### RT Analyzer

[App page](https://appshunter.io/ios/app/rt-analyzer/id6809084222)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is OnStem free?

OnStem is free to download, with in-app purchases available.

### Is RT Analyzer free?

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

### Do OnStem or RT Analyzer have ads?

OnStem shows ads; RT Analyzer does not.

### Which is updated more often, OnStem or RT Analyzer?

OnStem ships an update every 3 weeks, and RT Analyzer weekly. Most recently, OnStem was updated on October 25, 2026 and RT Analyzer on October 31, 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.*