# Dolphin INC vs Estudylog

The clearest difference is in-app purchases: Dolphin INC at none against Estudylog's 2. Dolphin INC also leads on iOS requirement (15.6 vs 18.0). Estudylog's advantage is update cadence (every 3 days vs weekly). On price, ads and device support there is nothing between them.

Both are free to download. Estudylog sells 2 in-app purchases, starting at $3.99 per month. Dolphin INC asks for nothing beyond the download.

Dolphin INC ships an update weekly, Estudylog every 3 days. The most recent releases landed on October 4, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Dolphin INC | Estudylog |
| --- | --- | --- |
| 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 | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | — | Freemium |
| Size | 96 MB | 74 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Dolphin INC](https://appshunter.io/developer/1810053166) | [Estudylog inc.](https://appshunter.io/developer/1836623082) |

## What reviewers say

### Dolphin INC

[App page](https://appshunter.io/ios/app/dolphin-inc/id6744942177)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Dolphin INC free?

Dolphin INC is free to download, with no in-app purchases.

### Is Estudylog free?

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

### Do Dolphin INC or Estudylog have ads?

Neither Dolphin INC nor Estudylog shows ads.

### Which is updated more often, Dolphin INC or Estudylog?

Dolphin INC ships an update weekly, and Estudylog every 3 days. Most recently, Dolphin INC was updated on October 4, 2026 and Estudylog on October 14, 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.*