# BathLog+ vs Monolog

The clearest difference is in-app purchases: BathLog+ at none against Monolog's 3. Monolog's advantage is update cadence (every 2 days vs every 9 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Monolog sells 3 in-app purchases, starting at $1.99 per month. BathLog+ asks for nothing beyond the download.

BathLog+ ships an update every 9 months, Monolog every 2 days. The most recent releases landed on September 9, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | BathLog+ | Monolog |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 days** |
| Size | 17 MB | 131 MB |
| Requires iOS | **18.0** | 18.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ai Kaneko](https://appshunter.io/developer/1631771254) | [Sho Narita](https://appshunter.io/developer/1487883095) |

## What reviewers say

### BathLog+

[App page](https://appshunter.io/ios/app/bathlog-plus/id6737230733)

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

**In-app purchases:** none


### Monolog

[App page](https://appshunter.io/ios/app/monolog/id6759095373)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月額プラン | $1.99 | per month |
| 年額プラン | $11.99 | per year |
| Monolog Pro 買い切り | $29.99 | one-time |


## Frequently asked questions

### Is BathLog+ free?

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

### Is Monolog free?

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

### Do BathLog+ or Monolog have ads?

Neither BathLog+ nor Monolog shows ads.

### Which is updated more often, BathLog+ or Monolog?

BathLog+ ships an update every 9 months, and Monolog every 2 days. Most recently, BathLog+ was updated on September 9, 2026 and Monolog on September 23, 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.*