# Atteno vs 小龜旬曆

The clearest difference is update cadence: 小龜旬曆 at every 3 days against Atteno's every 4 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Atteno sells 1 one-off in-app purchase and 小龜旬曆 sells 2 in-app purchases, starting at $19.99 per year. Whichever you choose, the download price is not the number that matters.

Atteno ships an update every 4 weeks, 小龜旬曆 every 3 days. Both last shipped on November 5, 2026.

## The numbers

| Metric | Atteno | 小龜旬曆 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 3 days** |
| Size | 35 MB | 29 MB |
| Requires iOS | **16.1** | 17.0 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [子文 杨](https://appshunter.io/developer/1804228519) | [MINGQUAN WU](https://appshunter.io/developer/1892943550) |

## What reviewers say

### Atteno

[App page](https://appshunter.io/ios/app/atteno-focus-timer-and-study/id6757382433)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Atteno Pro Lifetime | $4.99 | one-time |


### 小龜旬曆

[App page](https://appshunter.io/ios/app/id6763717174)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 小龜旬曆Pro年費 | $19.99 | per year |
| 小龜旬曆Pro終身版 | $59.99 | one-time |


## Frequently asked questions

### Is Atteno free?

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

### Is 小龜旬曆 free?

小龜旬曆 is free to download, with in-app purchases available.

### Do Atteno or 小龜旬曆 have ads?

Neither Atteno nor 小龜旬曆 shows ads.

### Which is updated more often, Atteno or 小龜旬曆?

Atteno ships an update every 4 weeks, and 小龜旬曆 every 3 days. Most recently, Atteno was updated on November 5, 2026 and 小龜旬曆 on November 5, 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.*