# Base PRO vs Frequency Converter

The clearest difference is in-app purchases: Base PRO at none against Frequency Converter's 3. Base PRO also leads on update cadence (every 4 months vs every 64 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Frequency Converter sells 3 in-app purchases, starting at $0.99 per 7 days. Base PRO asks for nothing beyond the download.

Base PRO ships an update every 4 months, Frequency Converter every 64 months. The most recent releases landed on October 6, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Base PRO | Frequency Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (8 ratings)](https://appshunter.io/ios/app/frequency-converter/id1539673060/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 64 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 9 MB | 2 MB |
| Requires iOS | **12** | 13.4 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nic Kolbe](https://appshunter.io/developer/512550641) | [Anna Filobok](https://appshunter.io/developer/1613515832) |

## 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


### Frequency Converter

[App page](https://appshunter.io/ios/app/frequency-converter/id1539673060)

Easily convert frequencies between Hertz, Kilohertz, Megahertz, and Gigahertz. This tool is designed for builders, electricians, scientists, and anyone needing quick frequency conversions.

**Highlights:** Convert Hertz (Hz), Convert Kilohertz (kHz), Convert Megahertz (MHz), Convert Gigahertz (GHz), Fast conversions, User-friendly interface

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access | $0.99 | per 7 days |
| Premium Access | $1.99 | per month |
| Premium Access | $5.99 | per year |


## Frequently asked questions

### Is Base PRO free?

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

### Is Frequency Converter free?

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

### Do Base PRO or Frequency Converter have ads?

Neither Base PRO nor Frequency Converter shows ads.

### Which is updated more often, Base PRO or Frequency Converter?

Base PRO ships an update every 4 months, and Frequency Converter every 64 months. Most recently, Base PRO was updated on October 6, 2026 and Frequency Converter on October 8, 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.*