# Base to Base Converter vs PFD Calc

The clearest difference is ads: Base to Base Converter at none against PFD Calc's shown. On price, update cadence, 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.

Both ship on a similar rhythm, roughly every 5 weeks. The most recent releases landed on October 24, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Base to Base Converter | PFD Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/base-to-base-converter/id6670618030/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | Every 5 weeks |
| Monetization | Free | — |
| Size | 3 MB | 14 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yuri Morozov](https://appshunter.io/developer/1582368813) | [Kazuhisa Kobayashi](https://appshunter.io/developer/1580882000) |

## What reviewers say

### Base to Base Converter

[App page](https://appshunter.io/ios/app/base-to-base-converter/id6670618030)

This app converts integer and fractional numbers between bases 2 and 16, explaining each step of the conversion process. It offers direct conversions between specific bases and prioritizes minimizing numerical error for fractions.

**Highlights:** Converts between bases 2-16, Explains conversion steps, Handles integers and fractions, Minimizes numerical error, Direct base conversions

**Features:** macOS Compatibility

**In-app purchases:** none


### PFD Calc

[App page](https://appshunter.io/ios/app/pfd-calc-prime-factorization/id6737405828)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Base to Base Converter free?

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

### Is PFD Calc free?

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

### Do Base to Base Converter or PFD Calc have ads?

PFD Calc shows ads; Base to Base Converter does not.

### Which is updated more often, Base to Base Converter or PFD Calc?

Base to Base Converter ships an update every 5 weeks, and PFD Calc every 5 weeks. Most recently, Base to Base Converter was updated on October 24, 2026 and PFD Calc on October 5, 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.*