# Birthday assistant app vs 1DayS

The clearest difference is in-app purchases: 1DayS at none against Birthday assistant app's 1. 1DayS also leads on iOS requirement (12.0 vs 15.6). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Birthday assistant app sells 1 one-off in-app purchase. 1DayS asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Birthday assistant app against 5.0 for 1DayS. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Birthday assistant app ships an update fortnightly, 1DayS every 3 weeks. Both last shipped on October 19, 2026.

## The numbers

| Metric | Birthday assistant app | 1DayS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/birthday-assistant-app/id1508444645/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/1days/id1668529103/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 70 MB | 102 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [小花 邓](https://appshunter.io/developer/1327670424) | [KAIROS Company Limited](https://appshunter.io/developer/1495144014) |

## What reviewers say

### Birthday assistant app

[App page](https://appshunter.io/ios/app/birthday-assistant-app/id1508444645)

This app helps you remember important dates like birthdays, anniversaries, and festivals. It sends automatic reminders and offers tools for sending greeting cards and invitations, ensuring you never miss a special occasion.

**Highlights:** Birthday reminders, Lunar calendar support, Countdown timers, Greeting card creation, Invitation sending, Photo book integration, 7-day weather forecast

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 一年会员功能使用购买 | $5.99 | one-time |


### 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 Birthday assistant app free?

Birthday assistant app is free to download, with in-app purchases available.

### Is 1DayS free?

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

### Which has better reviews, Birthday assistant app or 1DayS?

Birthday assistant app and 1DayS are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do Birthday assistant app or 1DayS have ads?

Neither Birthday assistant app nor 1DayS shows ads.

### Which is updated more often, Birthday assistant app or 1DayS?

Birthday assistant app ships an update fortnightly, and 1DayS every 3 weeks. Most recently, Birthday assistant app was updated on October 19, 2026 and 1DayS 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.*