# 艦メモ 〜艦これメモ帳〜 vs ASTROTIMER

The clearest difference is in-app purchases: 艦メモ 〜艦これメモ帳〜 at none against ASTROTIMER's 1. 艦メモ 〜艦これメモ帳〜 also leads on ads (none vs shown) and iOS requirement (10.1 vs 15.0). ASTROTIMER's advantage is update cadence (every 6 days vs every 9 months). On price and device support there is nothing between them.

Both are free to download. ASTROTIMER sells 1 one-off in-app purchase. 艦メモ 〜艦これメモ帳〜 asks for nothing beyond the download.

艦メモ 〜艦これメモ帳〜 ships an update every 9 months, ASTROTIMER every 6 days. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 艦メモ 〜艦これメモ帳〜 | ASTROTIMER |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Every 6 days** |
| Size | 36 MB | 6 MB |
| Requires iOS | **10.1** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Genki Fujii](https://appshunter.io/developer/1138016266) | [Takashi Tsunoda](https://appshunter.io/developer/1884742586) |

## What reviewers say

### 艦メモ 〜艦これメモ帳〜

[App page](https://appshunter.io/ios/app/id1192962216)

**Features:** macOS Compatibility

**In-app purchases:** none


### ASTROTIMER

[App page](https://appshunter.io/ios/app/astrotimer/id6761328042)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is 艦メモ 〜艦これメモ帳〜 free?

艦メモ 〜艦これメモ帳〜 is free to download, with no in-app purchases.

### Is ASTROTIMER free?

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

### Do 艦メモ 〜艦これメモ帳〜 or ASTROTIMER have ads?

ASTROTIMER shows ads; 艦メモ 〜艦これメモ帳〜 does not.

### Which is updated more often, 艦メモ 〜艦これメモ帳〜 or ASTROTIMER?

艦メモ 〜艦これメモ帳〜 ships an update every 9 months, and ASTROTIMER every 6 days. Most recently, 艦メモ 〜艦これメモ帳〜 was updated on November 2, 2026 and ASTROTIMER on October 31, 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.*