# OptiPicly vs Unit Converter Pro

The clearest difference is update cadence: Unit Converter Pro at every 3 days against OptiPicly's every 2 months. Unit Converter Pro also leads on iOS requirement (13.0 vs 15.0). 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.

OptiPicly ships an update every 2 months, Unit Converter Pro every 3 days. Both last shipped on October 28, 2026.

## The numbers

| Metric | OptiPicly | Unit Converter Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 3 days** |
| Size | 4 MB | 188 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Lance Long](https://appshunter.io/developer/1895256259) | [Zehras Ahmele](https://appshunter.io/developer/6776544726) |

## What reviewers say

### OptiPicly

[App page](https://appshunter.io/ios/app/optipicly/id6766160299)

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

**In-app purchases:** none


### Unit Converter Pro

[App page](https://appshunter.io/ios/app/unit-converter-pro-universal/id6781187335)

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

**In-app purchases:** none


## Frequently asked questions

### Is OptiPicly free?

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

### Is Unit Converter Pro free?

Unit Converter Pro is free to download, with no in-app purchases.

### Do OptiPicly or Unit Converter Pro have ads?

Both OptiPicly and Unit Converter Pro show ads.

### Which is updated more often, OptiPicly or Unit Converter Pro?

OptiPicly ships an update every 2 months, and Unit Converter Pro every 3 days. Most recently, OptiPicly was updated on October 28, 2026 and Unit Converter Pro on October 28, 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.*