# ダイバーLOG vs BSAC Member

The clearest difference is update cadence: BSAC Member at every 10 days against ダイバーLOG's every 2 months. 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.

ダイバーLOG ships an update every 2 months, BSAC Member every 10 days. The most recent releases landed on September 21, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | ダイバーLOG | BSAC Member |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 8.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 10 days** |
| Monetization | Free | — |
| Size | 39 MB | 49 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [HEAD JAPAN K.K.](https://appshunter.io/developer/1497065750) | [BSAC Japan](https://appshunter.io/developer/1605902011) |

## 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


### BSAC Member

[App page](https://appshunter.io/ios/app/bsac-member/id6473789042)

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

**In-app purchases:** none


## 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 BSAC Member free?

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

### Do ダイバーLOG or BSAC Member have ads?

Neither ダイバーLOG nor BSAC Member shows ads.

### Which is updated more often, ダイバーLOG or BSAC Member?

ダイバーLOG ships an update every 2 months, and BSAC Member every 10 days. Most recently, ダイバーLOG was updated on September 21, 2026 and BSAC Member on October 7, 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.*