# Study Timer & Log vs もぐスタ

The clearest difference is in-app purchases: もぐスタ at none against Study Timer & Log's 2. もぐスタ also leads on iOS requirement (15.1 vs 17.5). Study Timer & Log's advantage is update cadence (daily vs every 3 days). On price, ads and device support there is nothing between them.

Both are free to download. Study Timer & Log sells 2 in-app purchases, starting at $1.99 per month. もぐスタ asks for nothing beyond the download.

Study Timer & Log ships an update daily, もぐスタ every 3 days. The most recent releases landed on November 13, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Study Timer & Log | もぐスタ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/study-timer-and-log-study-buddy/id6764601072/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Daily** | Every 3 days |
| Monetization | Freemium | — |
| Size | 19 MB | 38 MB |
| Requires iOS | 17.5 | **15.1** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ZEC Inc.](https://appshunter.io/developer/1889726396) | [asaki nakama](https://appshunter.io/developer/6788221991) |

## What reviewers say

### Study Timer & Log

[App page](https://appshunter.io/ios/app/study-timer-and-log-study-buddy/id6764601072)

Enhance your study sessions with a virtual companion that grows as you learn. Track your progress, set study plans, and enjoy ambient sounds. Features include lock screen widgets, control center integration, and optional pairing with a friend.

**Highlights:** Virtual pet that grows with study time, Lock screen and Dynamic Island integration, Home screen widgets and Control Center access, Study plans and AI integration, Ambient study sounds, Pomodoro timer and daily goals, Study Pair with a friend

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Study Buddy Premium Monthly | $1.99 | per month |
| Study Buddy Premium Yearly | $11.99 | per year |


### もぐスタ

[App page](https://appshunter.io/ios/app/id6788221989)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Study Timer & Log free?

Study Timer & Log is free to download, with in-app purchases available.

### Is もぐスタ free?

もぐスタ is free to download, with no in-app purchases.

### Do Study Timer & Log or もぐスタ have ads?

Neither Study Timer & Log nor もぐスタ shows ads.

### Which is updated more often, Study Timer & Log or もぐスタ?

Study Timer & Log ships an update daily, and もぐスタ every 3 days. Most recently, Study Timer & Log was updated on November 13, 2026 and もぐスタ on November 5, 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.*