# DF Dance Studio vs Deep Sky Diary

The clearest difference is update cadence: Deep Sky Diary at every 3 days against DF Dance Studio's every 5 weeks. Deep Sky Diary also leads on iOS requirement (14.1 vs 16.0). On price, ads, 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.

DF Dance Studio ships an update every 5 weeks, Deep Sky Diary every 3 days. The most recent releases landed on September 19, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | DF Dance Studio | Deep Sky Diary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/deep-sky-diary/id1510396752/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 days** |
| Monetization | — | Free |
| Size | 193 MB | 8 MB |
| Requires iOS | 16.0 | **14.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [DF Dance Studio](https://appshunter.io/developer/1730125414) | [Shunzhe Ma](https://appshunter.io/developer/1052286218) |

## What reviewers say

### DF Dance Studio

[App page](https://appshunter.io/ios/app/df-dance-studio/id624120305)

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

**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 DF Dance Studio free?

DF Dance Studio 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.

### Do DF Dance Studio or Deep Sky Diary have ads?

Neither DF Dance Studio nor Deep Sky Diary shows ads.

### Which is updated more often, DF Dance Studio or Deep Sky Diary?

DF Dance Studio ships an update every 5 weeks, and Deep Sky Diary every 3 days. Most recently, DF Dance Studio was updated on September 19, 2026 and Deep Sky Diary on September 9, 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.*