# ダイバーLOG vs モトメモ

The clearest difference is in-app purchases: ダイバーLOG at none against モトメモ's 2. ダイバーLOG also leads on ads (none vs shown) and iOS requirement (16.0 vs 18.4). モトメモ's advantage is update cadence (every 2 weeks vs every 2 months). On price and device support there is nothing between them.

Both are free to download. モトメモ sells 2 in-app purchases, starting at $1.99 per month. ダイバーLOG asks for nothing beyond the download.

ダイバーLOG ships an update every 2 months, モトメモ every 2 weeks. The most recent releases landed on September 21, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | ダイバーLOG | モトメモ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 8.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 39 MB | 23 MB |
| Requires iOS | **16.0** | 18.4 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [HEAD JAPAN K.K.](https://appshunter.io/developer/1497065750) | [shingo kakihara](https://appshunter.io/developer/1814054715) |

## What reviewers say

### ダイバーLOG

[App page](https://appshunter.io/ios/app/log/id1451483867)

Easily transfer and view your dive logs from Calm Plus +. Keep a digital record of your underwater adventures and access them anytime.

**Highlights:** Transfer dive logs, View dive logs, Calm Plus + integration, Digital logbook, Sports tracking

**Features:** Vision Pro support

**In-app purchases:** none


### モトメモ

[App page](https://appshunter.io/ios/app/id6748569449)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium Plan | $1.99 | per month |
| Yearly Premium Plan | $22.99 | per year |


## Frequently asked questions

### Is ダイバーLOG free?

ダイバーLOG is free to download, with no in-app purchases.

### Is モトメモ free?

モトメモ is free to download, with in-app purchases available.

### Do ダイバーLOG or モトメモ have ads?

モトメモ shows ads; ダイバーLOG does not.

### Which is updated more often, ダイバーLOG or モトメモ?

ダイバーLOG ships an update every 2 months, and モトメモ every 2 weeks. Most recently, ダイバーLOG was updated on September 21, 2026 and モトメモ on October 16, 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.*