# OPQRcoder vs UnitPro

The clearest difference is in-app purchases: UnitPro at none against OPQRcoder's 1. UnitPro also leads on update cadence (every 3 weeks vs every 16 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. OPQRcoder sells 1 one-off in-app purchase. UnitPro asks for nothing beyond the download.

OPQRcoder ships an update every 16 months, UnitPro every 3 weeks. The most recent releases landed on June 6, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | OPQRcoder | UnitPro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 3 weeks** |
| Size | 37 MB | 1 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Takaho Endo](https://appshunter.io/developer/1705551687) | [晓 郭](https://appshunter.io/developer/1895645928) |

## What reviewers say

### OPQRcoder

[App page](https://appshunter.io/ios/app/opqrcoder/id6464173069)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OPQRcoder Pro | $1.99 | one-time |


### UnitPro

[App page](https://appshunter.io/ios/app/unitpro-all-converter/id6771362180)

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

**In-app purchases:** none


## Frequently asked questions

### Is OPQRcoder free?

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

### Is UnitPro free?

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

### Do OPQRcoder or UnitPro have ads?

Neither OPQRcoder nor UnitPro shows ads.

### Which is updated more often, OPQRcoder or UnitPro?

OPQRcoder ships an update every 16 months, and UnitPro every 3 weeks. Most recently, OPQRcoder was updated on June 6, 2026 and UnitPro on September 9, 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.*