# 记忆日 vs D

The clearest difference is in-app purchases: D at none against 记忆日's 4. 记忆日's advantage is device support (4 vs 2). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. 记忆日 sells 4 in-app purchases, starting at $0.49 per year. D asks for nothing beyond the download.

记忆日 ships an update every 3 weeks, D monthly. The most recent releases landed on June 2, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | 记忆日 | D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/id1484064102/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Subscription | — |
| Size | 39 MB | 16 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [松 戢](https://appshunter.io/developer/1259912667) | [ONLYOWNER TECHNOLOGY LIMITED](https://appshunter.io/developer/1808290458) |

## What reviewers say

### 记忆日

[App page](https://appshunter.io/ios/app/id1484064102)

Easily track important dates like birthdays and anniversaries with custom reminders and visual customization. Never miss a special moment again with this intuitive date tracking tool.

**Highlights:** Customizable date tracking, Lunar and Gregorian calendar support, Customizable backgrounds and themes, Group management for dates, Shareable date records, iCloud synchronization, Password and biometric lock

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 一年会员 | $0.49 | per year |
| 半年会员 | $0.49 | per 6 months |
| 一月会员 | $0.49 | per month |
| 永久会员 | $1.99 | one-time |


### D

[App page](https://appshunter.io/ios/app/d-zone/id6752286557)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 记忆日 free?

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

### Is D free?

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

### Do 记忆日 or D have ads?

Neither 记忆日 nor D shows ads.

### Which is updated more often, 记忆日 or D?

记忆日 ships an update every 3 weeks, and D monthly. Most recently, 记忆日 was updated on June 2, 2026 and D on September 22, 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.*