# Base PRO vs Universal Calendar Converter

The clearest difference is ads: Base PRO at none against Universal Calendar Converter's shown. Base PRO also leads on device support (4 vs 1) and iOS requirement (12 vs 17.0). On price and in-app purchases there is nothing between them.

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

## The numbers

| Metric | Base PRO | Universal Calendar Converter |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | — |
| Monetization | Paid | — |
| Size | 9 MB | 8 MB |
| Requires iOS | **12** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Nic Kolbe](https://appshunter.io/developer/512550641) | [manabu ueda](https://appshunter.io/developer/1606163236) |

## What reviewers say

### Base PRO

[App page](https://appshunter.io/ios/app/base-pro/id1482739496)

This app simplifies base conversions from Base 2 to Base 20 with precision and clarity. It offers interactive visual explanations of number systems, making it ideal for students and educators learning computer science and digital computation.

**Highlights:** Base conversions (2-20), Precision and clarity, Visual Flow Function, Interactive learning, Full-screen mode, Adjustable sizing

**Features:** Vision Pro support

**In-app purchases:** none


### Universal Calendar Converter

[App page](https://appshunter.io/ios/app/universal-calendar-converter/id6756697267)

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

**In-app purchases:** none


## Frequently asked questions

### Is Base PRO free?

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

### Is Universal Calendar Converter free?

Universal Calendar Converter is free to download, with no in-app purchases.

### Do Base PRO or Universal Calendar Converter have ads?

Universal Calendar Converter shows ads; Base PRO does not.

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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.*