# Walking! Earth Defense Force vs Deep Sky Diary

The clearest difference is ads: Deep Sky Diary at none against Walking! Earth Defense Force's shown. Deep Sky Diary also leads on update cadence (every 3 days vs every 5 weeks) and monetization model (free vs ad-supported). Walking! Earth Defense Force's advantage is ratings volume (7 vs 2). On price, rating and in-app purchases there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.9 for Walking! Earth Defense Force against 5.0 for Deep Sky Diary. Both are backed by a comparable volume of ratings — 7 and 2 respectively.

Walking! Earth Defense Force ships an update every 5 weeks, Deep Sky Diary every 3 days. The most recent releases landed on October 24, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Walking! Earth Defense Force | Deep Sky Diary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (7 ratings)](https://appshunter.io/ios/app/walking-earth-defense-force/id1276547972/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/deep-sky-diary/id1510396752/reviews)** |
| Number of ratings | **7** | 2 |
| Positive reviews | 45.5% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 3 days** |
| Monetization | Ad-supported | **Free** |
| Size | 56 MB | 8 MB |
| Requires iOS | 18.6 | **14.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tomoya Hasegawa](https://appshunter.io/developer/1276547971) | [Shunzhe Ma](https://appshunter.io/developer/1052286218) |

## What reviewers say

### Walking! Earth Defense Force

[App page](https://appshunter.io/ios/app/walking-earth-defense-force/id1276547972)

Walk to earn in-game currency and acquire villains to defend Earth. Develop equipment and expand your organization to restore peace. A casual patrol game with a compelling story.

**Highlights:** Earn in-game currency with steps, Acquire aliens and villains, Develop equipment, Extend organization, Casual patrol gameplay, Engaging storyline

**Features:** macOS Compatibility

**In-app purchases:** none


### Deep Sky Diary

[App page](https://appshunter.io/ios/app/deep-sky-diary/id1510396752)

Record your thoughts and memories for your future self or send messages into the void. This app allows you to create regular diary entries, schedule future readings, or send messages that are permanently deleted.

**Highlights:** Regular diary entries, Scheduled future readings, Ephemeral black hole messages, Optional black hole receipt

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Walking! Earth Defense Force free?

Walking! Earth Defense Force is free to download, with no in-app purchases.

### Is Deep Sky Diary free?

Deep Sky Diary is free to download, with no in-app purchases.

### Which has better reviews, Walking! Earth Defense Force or Deep Sky Diary?

Deep Sky Diary is rated higher. Walking! Earth Defense Force averages 4.9 out of 5 from 7 ratings, while Deep Sky Diary averages 5.0 from 2 ratings.

### Do Walking! Earth Defense Force or Deep Sky Diary have ads?

Walking! Earth Defense Force shows ads; Deep Sky Diary does not.

### Which is updated more often, Walking! Earth Defense Force or Deep Sky Diary?

Walking! Earth Defense Force ships an update every 5 weeks, and Deep Sky Diary every 3 days. Most recently, Walking! Earth Defense Force was updated on October 24, 2026 and Deep Sky Diary on October 11, 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.*