# Colearn vs Gia Sư Dolphin

The clearest difference is rating: Gia Sư Dolphin at 5.0 against Colearn's 4.0. Gia Sư Dolphin also leads on ads (none vs shown) and review sentiment (100% vs 75%). Colearn's advantage is ratings volume (4 vs 1) and device support (3 vs 1). On price, update cadence and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Gia Sư Dolphin holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews point the same way: 75% of Colearn's written reviews are positive against 100% of Gia Sư Dolphin's.

Colearn ships an update every 10 days, Gia Sư Dolphin every 5 days. The most recent releases landed on November 3, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Colearn | Gia Sư Dolphin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/colearn/id1548249734/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/gia-su-dolphin/id6743147717/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 10 days | **Every 5 days** |
| Monetization | Ad-supported | **Free** |
| Size | 118 MB | 77 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Electronics Communications Technology Investment Development Corporation](https://appshunter.io/developer/1050074303) | [Long Phan](https://appshunter.io/developer/1801658488) |

## What reviewers say

### Colearn

[App page](https://appshunter.io/ios/app/colearn/id1548249734)

Get quick and accurate answers from tutors within 15-30 minutes. Access a library of lecture materials and practice quizzes with detailed solutions to reinforce learning. Features a team of highly qualified teachers from reputable institutions.

**Highlights:** Instant tutor Q&A, Extensive lecture materials, Practice quizzes with solutions, Qualified teacher network, User-friendly interface

**Features:** macOS Compatibility

**In-app purchases:** none


### Gia Sư Dolphin

[App page](https://appshunter.io/ios/app/gia-su-dolphin/id6743147717)

Connects students with tutors for free, offering transparent pricing and detailed tutor profiles. Provides dedicated support throughout the learning journey.

**Highlights:** Free tutor search, Transparent tuition fees, Detailed tutor profiles, Academic and teaching experience, Dedicated support team

**In-app purchases:** none


## Frequently asked questions

### Is Colearn free?

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

### Is Gia Sư Dolphin free?

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

### Which has better reviews, Colearn or Gia Sư Dolphin?

Gia Sư Dolphin is rated higher. Colearn averages 4.0 out of 5 from 4 ratings, while Gia Sư Dolphin averages 5.0 from 1 ratings.

### Do Colearn or Gia Sư Dolphin have ads?

Colearn shows ads; Gia Sư Dolphin does not.

### Which is updated more often, Colearn or Gia Sư Dolphin?

Colearn ships an update every 10 days, and Gia Sư Dolphin every 5 days. Most recently, Colearn was updated on November 3, 2026 and Gia Sư Dolphin on October 12, 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.*