# MochiLog vs Sauna Clock

The clearest difference is price: MochiLog at Free against Sauna Clock's $1.99. MochiLog also leads on device support (3 vs 1). On update cadence, ads, in-app purchases and iOS requirement there is nothing between them.

MochiLog is free to download; Sauna Clock costs $1.99 up front. MochiLog sells 3 one-off in-app purchases and Sauna Clock sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

MochiLog ships an update every 3 weeks, Sauna Clock monthly. The most recent releases landed on September 18, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | MochiLog | Sauna Clock |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 12 MB | 11 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ryuya watanabe](https://appshunter.io/developer/1863586499) | [CAEN Co., Ltd.](https://appshunter.io/developer/1770546611) |

## What reviewers say

### MochiLog

[App page](https://appshunter.io/ios/app/mochilog/id6756904240)

This app provides accurate battery health information by analyzing your device's system logs. It offers detailed metrics like real capacity, cycle count, and wear level without needing a computer. All processing is done on-device for enhanced privacy.

**Highlights:** Real battery capacity (mAh), True cycle count, Precise wear level, History graph from multiple logs, 100% on-device processing

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy me a coffee | $0.99 | one-time |
| Buy me a lunch | $1.99 | one-time |
| Buy me a dinner | $4.99 | one-time |


### Sauna Clock

[App page](https://appshunter.io/ios/app/sauna-clock-12-min-timer/id6777684217)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $0.99 | one-time |


## Frequently asked questions

### Is MochiLog free?

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

### Is Sauna Clock free?

Sauna Clock costs $1.99, and also offers in-app purchases.

### Do MochiLog or Sauna Clock have ads?

Neither MochiLog nor Sauna Clock shows ads.

### Which is updated more often, MochiLog or Sauna Clock?

MochiLog ships an update every 3 weeks, and Sauna Clock monthly. Most recently, MochiLog was updated on September 18, 2026 and Sauna Clock on September 21, 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.*