# Data Rhythm vs Thoughtree

The clearest difference is in-app purchases: Data Rhythm at none against Thoughtree's 2. Thoughtree's advantage is ads (none vs shown) and update cadence (every 3 days vs every 3 weeks). On price and iOS requirement there is nothing between them.

Both are free to download. Thoughtree sells 2 in-app purchases, starting at $19.99 per year. Data Rhythm asks for nothing beyond the download.

Data Rhythm ships an update every 3 weeks, Thoughtree every 3 days. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Data Rhythm | Thoughtree |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Size | 17 MB | 66 MB |
| Requires iOS | 16.6 | **16.0** |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Masaki Hayashi](https://appshunter.io/developer/1609931545) | [NIJIZO](https://appshunter.io/developer/1765848169) |

## What reviewers say

### Data Rhythm

[App page](https://appshunter.io/ios/app/data-rhythm/id1639696025)

**Features:** macOS Compatibility

**In-app purchases:** none


### Thoughtree

[App page](https://appshunter.io/ios/app/thoughtree-mind-map-and-outline/id6804508753)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Yearly | $19.99 | per year |
| Thoughtree Pro (Lifetime) | $29.99 | one-time |


## Frequently asked questions

### Is Data Rhythm free?

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

### Is Thoughtree free?

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

### Do Data Rhythm or Thoughtree have ads?

Data Rhythm shows ads; Thoughtree does not.

### Which is updated more often, Data Rhythm or Thoughtree?

Data Rhythm ships an update every 3 weeks, and Thoughtree every 3 days. Most recently, Data Rhythm was updated on October 27, 2026 and Thoughtree on October 25, 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.*