# Gia Sư Dolphin vs ClassFast

The clearest difference is in-app purchases: Gia Sư Dolphin at none against ClassFast's 3. Gia Sư Dolphin also leads on update cadence (every 5 days vs every 2 weeks). ClassFast's advantage is ratings volume (5 vs 1). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. ClassFast sells 3 in-app purchases, starting at $1.99 per month. Gia Sư Dolphin asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Gia Sư Dolphin against 5.0 for ClassFast. That said, the two scores are not equally well evidenced: ClassFast has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Gia Sư Dolphin ships an update every 5 days, ClassFast every 2 weeks. The most recent releases landed on October 12, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Gia Sư Dolphin | ClassFast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/gia-su-dolphin/id6743147717/reviews) | [5.0 (5 ratings)](https://appshunter.io/ios/app/classfast-class-attendance/id6755885720/reviews) |
| Number of ratings | 1 | **5** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 weeks |
| Monetization | **Free** | Freemium |
| Size | 77 MB | 74 MB |
| Requires iOS | 16.4 | **15.6** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Long Phan](https://appshunter.io/developer/1801658488) | [Vien Tran Ngoc](https://appshunter.io/developer/1644084520) |

## What reviewers say

### 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


### ClassFast

[App page](https://appshunter.io/ios/app/classfast-class-attendance/id6755885720)

This app digitizes class management for educators, handling attendance, tuition fees, and parent communication. It automates tasks like fee calculation and receipt generation, saving time for teachers. Parents can track student progress and receive notifications directly within the app.

**Highlights:** Quick attendance tracking, Automated tuition management, Parent communication portal, Class and student profiles, Income and expense tracking, Automated notifications, Dark mode and multi-language support

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gói hằng tháng | $1.99 | per month |
| Gói 6 tháng | $7.99 | per 6 months |
| Gói 1 năm | $12.99 | per year |


## Frequently asked questions

### Is Gia Sư Dolphin free?

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

### Is ClassFast free?

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

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

Gia Sư Dolphin and ClassFast are both rated 5.0 out of 5 on the App Store, from 1 and 5 ratings respectively.

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

Neither Gia Sư Dolphin nor ClassFast shows ads.

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

Gia Sư Dolphin ships an update every 5 days, and ClassFast every 2 weeks. Most recently, Gia Sư Dolphin was updated on October 12, 2026 and ClassFast on October 30, 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.*