# 日子提醒 vs DiDiDa

日子提醒 and DiDiDa are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

日子提醒 ships an update every 3 days, DiDiDa every 4 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 日子提醒 | DiDiDa |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 4 days |
| Size | 22 MB | 24 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Beijing Houyuan Zhixing Technology Co.,Ltd.](https://appshunter.io/developer/1144345874) | [海侠 廖](https://appshunter.io/developer/1892920959) |

## What reviewers say

### 日子提醒

[App page](https://appshunter.io/ios/app/id1585185536)

**Features:** macOS Compatibility

**In-app purchases:** none


### DiDiDa

[App page](https://appshunter.io/ios/app/didida/id6762350850)

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

**In-app purchases:** none


## Frequently asked questions

### Is 日子提醒 free?

日子提醒 is free to download, with no in-app purchases.

### Is DiDiDa free?

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

### Do 日子提醒 or DiDiDa have ads?

Neither 日子提醒 nor DiDiDa shows ads.

### Which is updated more often, 日子提醒 or DiDiDa?

日子提醒 ships an update every 3 days, and DiDiDa every 4 days. Most recently, 日子提醒 was updated on November 3, 2026 and DiDiDa on October 31, 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.*