# UnDo vs DearCosmos Daily Affirmations

The clearest difference is in-app purchases: UnDo at none against DearCosmos Daily Affirmations's 3. UnDo also leads on iOS requirement (17.6 vs 26.0). DearCosmos Daily Affirmations's advantage is update cadence (every 3 days vs weekly). On price, ads and device support there is nothing between them.

Both are free to download. DearCosmos Daily Affirmations sells 3 in-app purchases, starting at $3.99 per month. UnDo asks for nothing beyond the download.

UnDo ships an update weekly, DearCosmos Daily Affirmations every 3 days. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | UnDo | DearCosmos Daily Affirmations |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 2 MB | 42 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 9+ |
| Developer | [朝峰 陈](https://appshunter.io/developer/1868597907) | [AIRGLOW LLC](https://appshunter.io/developer/1678430007) |

## What reviewers say

### UnDo

[App page](https://appshunter.io/ios/app/undo/id6761196951)

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

**In-app purchases:** none


### DearCosmos Daily Affirmations

[App page](https://appshunter.io/ios/app/dearcosmos-daily-affirmations/id6816413014)

Discover daily affirmations hidden among the stars. This app helps you manifest your desires and build self-worth by sending wishes into the universe and receiving them back as personalized letters. Explore the night sky to find your messages and keep encouragement close.

**Highlights:** Daily affirmations via celestial stars, Write and receive personalized wishes, Explore the sky with haptic feedback, Save and share favorite messages, Home screen widget for favorite messages, Offline sky exploration

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro · Monthly | $3.99 | per month |
| Pro · Yearly | $14.99 | per year |
| Pro · Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is UnDo free?

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

### Is DearCosmos Daily Affirmations free?

DearCosmos Daily Affirmations is free to download, with in-app purchases available.

### Do UnDo or DearCosmos Daily Affirmations have ads?

Neither UnDo nor DearCosmos Daily Affirmations shows ads.

### Which is updated more often, UnDo or DearCosmos Daily Affirmations?

UnDo ships an update weekly, and DearCosmos Daily Affirmations every 3 days. Most recently, UnDo was updated on October 31, 2026 and DearCosmos Daily Affirmations on November 6, 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.*