# 正数日 vs Noteday

The clearest difference is review sentiment: 正数日 at 100% against Noteday's 0%. 正数日 also leads on iOS requirement (9.0 vs 26.0). Noteday's advantage is ads (none vs shown) and update cadence (fortnightly vs every 4 months). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. 正数日 sells 1 one-off in-app purchase and Noteday sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

正数日 ships an update every 4 months, Noteday fortnightly. The most recent releases landed on November 9, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | 正数日 | Noteday |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (8 ratings)](https://appshunter.io/ios/app/noteday-countdown-tracker/id1545736323/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 44 MB | 49 MB |
| Requires iOS | **9.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [斌 郭](https://appshunter.io/developer/963731856) | [铧 杨](https://appshunter.io/developer/1845236198) |

## What reviewers say

### 正数日

[App page](https://appshunter.io/ios/app/id1054750666)

This app uniquely focuses on counting forward from important dates, celebrating milestones like the 100th or 1000th day. It offers more than just forward counting, encouraging users to remember significant events rather than just countdown to them.

**Highlights:** Forward counting for important dates, Celebrate day milestones (100th, 1000th), Remember significant events, Additional functionalities beyond counting

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 专业版 | $1.99 | one-time |


### Noteday

[App page](https://appshunter.io/ios/app/noteday-countdown-tracker/id1545736323)

Track important dates like birthdays and anniversaries with customizable countdowns and count-ups. Add notes, photos, and set reminders to never miss a memorable moment. Organize events into categories and style them to your preference.

**Highlights:** Countdown and count-up for any date, Customizable reminders and notifications, Add notes and photos to events, Organize events by category, Home and Lock Screen widgets, Date calculator tool

**Features:** Family Sharing, Vision Pro support, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Noteday Pro | $2.99 | one-time |


## Frequently asked questions

### Is 正数日 free?

正数日 is free to download, with in-app purchases available.

### Is Noteday free?

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

### Do 正数日 or Noteday have ads?

正数日 shows ads; Noteday does not.

### Which is updated more often, 正数日 or Noteday?

正数日 ships an update every 4 months, and Noteday fortnightly. Most recently, 正数日 was updated on November 9, 2026 and Noteday on November 7, 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.*