# 贝壳日记 vs 快省鸭

The clearest difference is ads: 贝壳日记 at none against 快省鸭's shown. 贝壳日记 also leads on update cadence (monthly vs every 3 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

贝壳日记 ships an update monthly, 快省鸭 every 3 months. The most recent releases landed on October 25, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | 贝壳日记 | 快省鸭 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 5.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | — | Ad-supported |
| Size | 63 MB | 154 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [洋 汪](https://appshunter.io/developer/1574916846) | [栋杰 苑](https://appshunter.io/developer/1758745620) |

## What reviewers say

### 贝壳日记

[App page](https://appshunter.io/ios/app/id1575013566)

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

**In-app purchases:** none


### 快省鸭

[App page](https://appshunter.io/ios/app/id6443449731)

This app aggregates internal discount coupons from across the web for various categories like food, entertainment, and shopping. It offers cashback, exclusive deals for new users, and daily discounts, aiming to help users save significantly each year.

**Highlights:** Internal discount coupons, Up to 90% cashback, New user exclusive deals, Daily large coupons, Brand discounts up to 70% off, Daily sign-in rewards

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

**In-app purchases:** none


## Frequently asked questions

### Is 贝壳日记 free?

贝壳日记 is free to download, with no in-app purchases.

### Is 快省鸭 free?

快省鸭 is free to download, with no in-app purchases.

### Do 贝壳日记 or 快省鸭 have ads?

快省鸭 shows ads; 贝壳日记 does not.

### Which is updated more often, 贝壳日记 or 快省鸭?

贝壳日记 ships an update monthly, and 快省鸭 every 3 months. Most recently, 贝壳日记 was updated on October 25, 2026 and 快省鸭 on October 19, 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.*