# OpenNow vs BaiPDF

The clearest difference is update cadence: BaiPDF at daily against OpenNow's every 5 days. OpenNow's advantage is iOS requirement (16.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. OpenNow sells 3 in-app purchases, starting at $0.99 per month and BaiPDF sells 9 in-app purchases, starting at $3.49 per month. Whichever you choose, the download price is not the number that matters.

OpenNow ships an update every 5 days, BaiPDF daily. The most recent releases landed on September 18, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | OpenNow | BaiPDF |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Daily** |
| Size | 9 MB | 9 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [甸甸 陈](https://appshunter.io/developer/1447771806) | [Uzero Technology](https://appshunter.io/developer/1485380269) |

## What reviewers say

### OpenNow

[App page](https://appshunter.io/ios/app/opennow-markdown-html/id6777959815)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 即刻阅览 Pro 月度会员 | $0.99 | per month |
| 即刻阅览 Pro 年度会员 | $3.99 | per year |
| 即刻阅览 Pro 永久买断 | $19.99 | one-time |


### BaiPDF

[App page](https://appshunter.io/ios/app/baipdf-scan-and-pdf-convert/id6781993555)

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Membership | $3.49 | per month |
| Quarterly Membership | $6.99 | per 3 months |
| Yearly Membership | $11.99 | per year |
| 30-Page Pack | $1.29 | one-time |
| 100-Page Pack | $1.79 | one-time |
| 200-Page Pack | $2.49 | one-time |
| 500-Page Pack | $4.99 | one-time |
| 1,000-Page Pack | $7.49 | one-time |
| 5,000-Page Pack | $34.99 | one-time |


## Frequently asked questions

### Is OpenNow free?

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

### Is BaiPDF free?

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

### Do OpenNow or BaiPDF have ads?

Neither OpenNow nor BaiPDF shows ads.

### Which is updated more often, OpenNow or BaiPDF?

OpenNow ships an update every 5 days, and BaiPDF daily. Most recently, OpenNow was updated on September 18, 2026 and BaiPDF on September 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.*