# ClassFast vs Diem danh app

The clearest difference is update cadence: Diem danh app at every 4 days against ClassFast's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. ClassFast sells 3 in-app purchases, starting at $1.99 per month and Diem danh app sells 1 in-app purchase, starting at $22.99 per year. Whichever you choose, the download price is not the number that matters.

ClassFast ships an update fortnightly, Diem danh app every 4 days. The most recent releases landed on October 14, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | ClassFast | Diem danh app |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/classfast-class-attendance/id6755885720/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | Free | — |
| Size | 72 MB | 36 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Vien Tran Ngoc](https://appshunter.io/developer/1644084520) | [Anh Tran Tuan](https://appshunter.io/developer/1887151351) |

## What reviewers say

### 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.

**Highlights:** Quick attendance tracking, Automated tuition management, Parent communication portal, Class and student profiles, Income and expense tracking, Automated notifications, Cloud sync and dark mode

**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 |


### Diem danh app

[App page](https://appshunter.io/ios/app/diem-danh-app/id6782804149)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Vip 1 năm | $22.99 | per year |


## Frequently asked questions

### Is ClassFast free?

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

### Is Diem danh app free?

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

### Do ClassFast or Diem danh app have ads?

Neither ClassFast nor Diem danh app shows ads.

### Which is updated more often, ClassFast or Diem danh app?

ClassFast ships an update fortnightly, and Diem danh app every 4 days. Most recently, ClassFast was updated on October 14, 2026 and Diem danh app on October 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*