# Timemoa vs 深海自習室

The clearest difference is in-app purchases: Timemoa at none against 深海自習室's 1. 深海自習室's advantage is iOS requirement (18.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 深海自習室 sells 1 one-off in-app purchase. Timemoa asks for nothing beyond the download.

Timemoa ships an update every 3 days, 深海自習室 every 2 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Timemoa | 深海自習室 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 days | **Every 2 days** |
| Size | 15 MB | 7 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TAEHYEON KOO](https://appshunter.io/developer/1811301858) | [KAZUSA NAOI](https://appshunter.io/developer/1863197671) |

## What reviewers say

### Timemoa

[App page](https://appshunter.io/ios/app/timemoa-study-timer/id6787702131)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### 深海自習室

[App page](https://appshunter.io/ios/app/id6800208005)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 装備を新しくする | $4.99 | one-time |


## Frequently asked questions

### Is Timemoa free?

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

### Is 深海自習室 free?

深海自習室 is free to download, with in-app purchases available.

### Do Timemoa or 深海自習室 have ads?

Both Timemoa and 深海自習室 show ads.

### Which is updated more often, Timemoa or 深海自習室?

Timemoa ships an update every 3 days, and 深海自習室 every 2 days. Most recently, Timemoa was updated on October 24, 2026 and 深海自習室 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.*