# 双色球幸运密码 vs ClassLog

The clearest difference is price: 双色球幸运密码 at Free against ClassLog's $1.99. ClassLog's advantage is iOS requirement (14.0 vs 17.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

双色球幸运密码 is free to download; ClassLog costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

双色球幸运密码 ships an update every 2 months, ClassLog monthly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 双色球幸运密码 | ClassLog |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Size | 115 MB | 21 MB |
| Requires iOS | 17.0 | **14.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [连伟 周](https://appshunter.io/developer/1215140384) | [明昭 路](https://appshunter.io/developer/1890357342) |

## What reviewers say

### 双色球幸运密码

[App page](https://appshunter.io/ios/app/id6443746616)

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

**In-app purchases:** none


### ClassLog

[App page](https://appshunter.io/ios/app/classlog-attendance-tracker/id6791393409)

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

**In-app purchases:** none


## Frequently asked questions

### Is 双色球幸运密码 free?

双色球幸运密码 is free to download, with no in-app purchases.

### Is ClassLog free?

ClassLog costs $1.99, with no in-app purchases.

### Do 双色球幸运密码 or ClassLog have ads?

Neither 双色球幸运密码 nor ClassLog shows ads.

### Which is updated more often, 双色球幸运密码 or ClassLog?

双色球幸运密码 ships an update every 2 months, and ClassLog monthly. Most recently, 双色球幸运密码 was updated on October 24, 2026 and ClassLog on October 25, 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.*