# Outthink vs Expiry Keeper

The clearest difference is in-app purchases: Expiry Keeper at none against Outthink's 1. Outthink's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Outthink sells 1 one-off in-app purchase. Expiry Keeper asks for nothing beyond the download.

Outthink ships an update weekly, Expiry Keeper every 6 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Outthink | Expiry Keeper |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 6 days** |
| Size | 32 MB | 5 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [BRIAN ANDRE HAGELAND OPEDAL](https://appshunter.io/developer/1840003424) | [Vladimir Kamnev](https://appshunter.io/developer/1608911515) |

## What reviewers say

### Outthink

[App page](https://appshunter.io/ios/app/outthink-mental-frameworks/id6756206189)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Outthink Pro - Lifetime | $1.99 | one-time |


### Expiry Keeper

[App page](https://appshunter.io/ios/app/expiry-keeper-documents/id6766296652)

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

**In-app purchases:** none


## Frequently asked questions

### Is Outthink free?

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

### Is Expiry Keeper free?

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

### Do Outthink or Expiry Keeper have ads?

Neither Outthink nor Expiry Keeper shows ads.

### Which is updated more often, Outthink or Expiry Keeper?

Outthink ships an update weekly, and Expiry Keeper every 6 days. Most recently, Outthink was updated on October 28, 2026 and Expiry Keeper 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.*