# Estudylog vs Study timer; aquarium friends!

The clearest difference is update cadence: Estudylog at every 3 days against Study timer; aquarium friends!'s every 9 days. Estudylog also leads on device support (4 vs 2) and iOS requirement (18.0 vs 26.5). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Estudylog sells 2 in-app purchases, starting at $3.99 per month and Study timer; aquarium friends! sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Estudylog ships an update every 3 days, Study timer; aquarium friends! every 9 days. The most recent releases landed on October 14, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Estudylog | Study timer; aquarium friends! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (54 ratings)](https://appshunter.io/ios/app/estudylog-study-tracker/id6751782944/reviews)** | — |
| Number of ratings | **54** | — |
| Positive reviews | 78.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 9 days |
| Monetization | Freemium | — |
| Size | 74 MB | 54 MB |
| Requires iOS | **18.0** | 26.5 |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Estudylog inc.](https://appshunter.io/developer/1836623082) | [kazutoshi Ohashi](https://appshunter.io/developer/1888055445) |

## What reviewers say

### Estudylog

[App page](https://appshunter.io/ios/app/estudylog-study-tracker/id6751782944)

Organize your academic life with a study tracker and timer. Log sessions, monitor progress, and calculate grade targets to study more effectively. Gain insights into your focus patterns and ensure comprehensive topic coverage.

**Highlights:** Course organization with goal dates, Study timer with session notes and ratings, Focus pattern insights, Grade calculator for target scores, Topic coverage tracking, Consistency visualization

**Features:** Apple Wallet, Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EstudyLog Plus-Monthly | $3.99 | per month |
| Estudylog Plus-Annual | $24.99 | per year |


### Study timer; aquarium friends!

[App page](https://appshunter.io/ios/app/study-timer-aquarium-friends/id6792255856)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monitoring Premium | $1.99 | per month |


## Frequently asked questions

### Is Estudylog free?

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

### Is Study timer; aquarium friends! free?

Study timer; aquarium friends! is free to download, with in-app purchases available.

### Do Estudylog or Study timer; aquarium friends! have ads?

Neither Estudylog nor Study timer; aquarium friends! shows ads.

### Which is updated more often, Estudylog or Study timer; aquarium friends!?

Estudylog ships an update every 3 days, and Study timer; aquarium friends! every 9 days. Most recently, Estudylog was updated on October 14, 2026 and Study timer; aquarium friends! on October 8, 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.*