# 书非借 vs Deadliner待办日历

The clearest difference is in-app purchases: 书非借 at none against Deadliner待办日历's 1. 书非借 also leads on update cadence (every 2 days vs every 3 weeks) and iOS requirement (17.6 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Deadliner待办日历 sells 1 one-off in-app purchase. 书非借 asks for nothing beyond the download.

书非借 ships an update every 2 days, Deadliner待办日历 every 3 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 书非借 | Deadliner待办日历 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6741096319/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 weeks |
| Size | 6 MB | 57 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [杭州引力网络技术有限公司](https://appshunter.io/developer/1133518651) | [容皓 崔](https://appshunter.io/developer/1511704086) |

## What reviewers say

### 书非借

[App page](https://appshunter.io/ios/app/id6741096319)

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

**In-app purchases:** none


### Deadliner待办日历

[App page](https://appshunter.io/ios/app/deadliner/id6760482719)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Deadliner Geek 终身会员 | $2.99 | one-time |


## Frequently asked questions

### Is 书非借 free?

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

### Is Deadliner待办日历 free?

Deadliner待办日历 is free to download, with in-app purchases available.

### Do 书非借 or Deadliner待办日历 have ads?

Neither 书非借 nor Deadliner待办日历 shows ads.

### Which is updated more often, 书非借 or Deadliner待办日历?

书非借 ships an update every 2 days, and Deadliner待办日历 every 3 weeks. Most recently, 书非借 was updated on October 24, 2026 and Deadliner待办日历 on October 25, 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.*