# PDF Prime vs oioSend

The clearest difference is update cadence: oioSend at every 5 days against PDF Prime's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PDF Prime ships an update fortnightly, oioSend every 5 days. The most recent releases landed on June 11, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | PDF Prime | oioSend |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Fortnightly | **Every 5 days** |
| Size | 17 MB | 39 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Art Fate E-Commerce Limited](https://appshunter.io/developer/1744856799) | [TQC Solution](https://appshunter.io/developer/1808578489) |

## What reviewers say

### PDF Prime

[App page](https://appshunter.io/ios/app/pdf-prime/id6667100922)

**In-app purchases:** none


### oioSend

[App page](https://appshunter.io/ios/app/oiosend/id6747067435)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PDF Prime free?

PDF Prime is free to download, with no in-app purchases.

### Is oioSend free?

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

### Do PDF Prime or oioSend have ads?

Both PDF Prime and oioSend show ads.

### Which is updated more often, PDF Prime or oioSend?

PDF Prime ships an update fortnightly, and oioSend every 5 days. Most recently, PDF Prime was updated on June 11, 2026 and oioSend on September 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.*