# 灵光纸条 vs Sunday on Earth

The clearest difference is update cadence: Sunday on Earth at every 3 days against 灵光纸条's every 2 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 灵光纸条 sells 2 in-app purchases, starting at $2.99 per year and Sunday on Earth sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

灵光纸条 ships an update every 2 weeks, Sunday on Earth every 3 days. The most recent releases landed on November 3, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | 灵光纸条 | Sunday on Earth |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/id6468341870/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 3 days** |
| Size | 66 MB | 90 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Shenzhen Poplab Technology Co. Ltd.](https://appshunter.io/developer/1330153351) | [汐音 孟](https://appshunter.io/developer/6802161617) |

## What reviewers say

### 灵光纸条

[App page](https://appshunter.io/ios/app/id6468341870)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 年费会员 | $2.99 | per year |
| 永久会员 | $4.99 | one-time |


### Sunday on Earth

[App page](https://appshunter.io/ios/app/sunday-on-earth/id6802244527)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 AI Recognitions | $1.99 | one-time |
| 300 AI Recognitions | $4.99 | one-time |


## Frequently asked questions

### Is 灵光纸条 free?

灵光纸条 is free to download, with in-app purchases available.

### Is Sunday on Earth free?

Sunday on Earth is free to download, with in-app purchases available.

### Do 灵光纸条 or Sunday on Earth have ads?

Neither 灵光纸条 nor Sunday on Earth shows ads.

### Which is updated more often, 灵光纸条 or Sunday on Earth?

灵光纸条 ships an update every 2 weeks, and Sunday on Earth every 3 days. Most recently, 灵光纸条 was updated on November 3, 2026 and Sunday on Earth on November 10, 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.*