# ThoughtTrace vs Saturn

The clearest difference is ads: Saturn at none against ThoughtTrace's shown. Saturn also leads on update cadence (every 5 days vs every 3 weeks). ThoughtTrace's advantage is iOS requirement (17.0 vs 26.0). On price, in-app purchases and device support there is nothing between them.

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

ThoughtTrace ships an update every 3 weeks, Saturn every 5 days. The most recent releases landed on October 16, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | ThoughtTrace | Saturn |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Size | 19 MB | 5 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [JUNICHI WATANABE](https://appshunter.io/developer/1837543582) | [Neiell Care Paradiang](https://appshunter.io/developer/1896600992) |

## What reviewers say

### ThoughtTrace

[App page](https://appshunter.io/ios/app/thoughttrace-brain-dump-timer/id6777566567)

**Features:** macOS Compatibility

**In-app purchases:** none


### Saturn

[App page](https://appshunter.io/ios/app/saturn-offline-reminders/id6788941550)

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

**In-app purchases:** none


## Frequently asked questions

### Is ThoughtTrace free?

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

### Is Saturn free?

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

### Do ThoughtTrace or Saturn have ads?

ThoughtTrace shows ads; Saturn does not.

### Which is updated more often, ThoughtTrace or Saturn?

ThoughtTrace ships an update every 3 weeks, and Saturn every 5 days. Most recently, ThoughtTrace was updated on October 16, 2026 and Saturn on October 10, 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.*