# 函纪请柬 vs 酷豆丁

The clearest difference is update cadence: 函纪请柬 at every 2 months against 酷豆丁's every 11 months. On price, ads, in-app purchases and device support there is nothing between them.

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

函纪请柬 ships an update every 2 months, 酷豆丁 every 11 months. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | 函纪请柬 | 酷豆丁 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 11 months |
| Size | 79 MB | 198 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chengdu Hunjiang Technology Co., Ltd](https://appshunter.io/developer/1585910623) | [Anhui Kudoding Technology Development Co., Ltd.](https://appshunter.io/developer/1732662575) |

## What reviewers say

### 函纪请柬

[App page](https://appshunter.io/ios/app/id1587079632)

**Features:** macOS Compatibility

**In-app purchases:** none


### 酷豆丁

[App page](https://appshunter.io/ios/app/id6478386234)

**In-app purchases:** none


## Frequently asked questions

### Is 函纪请柬 free?

函纪请柬 is free to download, with no in-app purchases.

### Is 酷豆丁 free?

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

### Do 函纪请柬 or 酷豆丁 have ads?

Neither 函纪请柬 nor 酷豆丁 shows ads.

### Which is updated more often, 函纪请柬 or 酷豆丁?

函纪请柬 ships an update every 2 months, and 酷豆丁 every 11 months. Most recently, 函纪请柬 was updated on November 7, 2026 and 酷豆丁 on November 8, 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.*