MochiLog vs Sauna Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MochiLog
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.
- Real battery capacity (mAh)
- True cycle count
- Precise wear level
- History graph from multiple logs
- 100% on-device processing
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MochiLog extracts real battery data directly from your iPhone’s system logs — no computer required. Unlike other apps that rely on estimates, MochiLog analyzes raw analytics data to show accurate battery metrics. 【Key Features】 ・Real Battery Capacity (mAh) ・True Cycle Count ・Precise Wear Level ・History Graph from Multiple Logs ・100% On-Device Processing (Privacy Safe)
Sauna Clock
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Sauna Clock recreates the classic 12-minute dial found in saunas. Its hands follow the current time, with one large, clear dial at the center of the screen. Use it to check time in a sauna, or as a calm analog clock for study, work, and short breaks. Place your device on a desk or shelf whenever you want the familiar sauna dial nearby. ■ Features ・Analog 12-minute clock synced to the real time ・Keeps the display awake while the app is open ・Portrait and landscape support ・11 backgrounds, including wood and stone ・Home Screen and Lock Screen widgets ■ Straightforward and private ・No ads ・No account required ・No analytics or tracking ・No in-app purchases or subscriptions One app purchase includes every background and feature. Open it whenever you need a clear 12-minute dial, in the sauna or on your desk.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | MochiLog | Sauna Clock |
|---|---|---|
| Price | Free — better | $1.99 |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 12 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | ryuya watanabe | CAEN Co., Ltd. |
In-app purchases
MochiLog
- Buy me a coffee$0.99
- Buy me a lunch$1.99
- Buy me a dinner$4.99
Sauna Clock
- Pro$0.99









