# 鼎鼐 vs 1DayS

The clearest difference is update cadence: 鼎鼐 at every 6 days against 1DayS's every 3 weeks. 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.

鼎鼐 ships an update every 6 days, 1DayS every 3 weeks. The most recent releases landed on September 17, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | 鼎鼐 | 1DayS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/1days/id1668529103/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 3 weeks |
| Monetization | — | Free |
| Size | 146 MB | 102 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [广东三鼎实业集团有限公司](https://appshunter.io/developer/1633928726) | [KAIROS Company Limited](https://appshunter.io/developer/1495144014) |

## What reviewers say

### 鼎鼐

[App page](https://appshunter.io/ios/app/id1633928724)

**Features:** macOS Compatibility

**In-app purchases:** none


### 1DayS

[App page](https://appshunter.io/ios/app/1days/id1668529103)

This app helps you track and remember important dates like birthdays, anniversaries, holidays, and deadlines. It offers customizable widgets, cloud synchronization, and a choice of UI themes. Never miss a significant event again with precise reminders.

**Highlights:** Track birthdays, anniversaries, holidays, deadlines, Public and lunar calendar support, Customizable widgets, Cloud synchronization, Multiple background options, One-click public holiday addition, Light and dark UI themes

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 鼎鼐 free?

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

### Is 1DayS free?

1DayS is free to download, with no in-app purchases.

### Do 鼎鼐 or 1DayS have ads?

Neither 鼎鼐 nor 1DayS shows ads.

### Which is updated more often, 鼎鼐 or 1DayS?

鼎鼐 ships an update every 6 days, and 1DayS every 3 weeks. Most recently, 鼎鼐 was updated on September 17, 2026 and 1DayS on September 14, 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.*