# Numbers Converter vs Convex Programmer's Calculator

The clearest difference is review sentiment: Convex Programmer's Calculator at 67% against Numbers Converter's 0%. Convex Programmer's Calculator also leads on rating (4.7 vs 1.0) and in-app purchases (none vs 1). Numbers Converter's advantage is update cadence (monthly vs every 8 months) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Numbers Converter sells 1 one-off in-app purchase. Convex Programmer's Calculator asks for nothing beyond the download.

Convex Programmer's Calculator holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: Convex Programmer's Calculator has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Numbers Converter's written reviews are positive against 67% of Convex Programmer's Calculator's.

Numbers Converter ships an update monthly, Convex Programmer's Calculator every 8 months. The most recent releases landed on October 10, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Numbers Converter | Convex Programmer's Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/numbers-converter/id888757088/reviews) | **[4.7 (6 ratings)](https://appshunter.io/ios/app/convex-programmers-calculator/id1021414602/reviews)** |
| Number of ratings | 1 | **6** |
| Positive reviews | 0.0% of reviews | **66.7% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 8 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 5 MB | 0 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Le Vu](https://appshunter.io/developer/888757091) | [Matthew Daigle](https://appshunter.io/developer/1021414601) |

## What reviewers say

### Numbers Converter

[App page](https://appshunter.io/ios/app/numbers-converter/id888757088)

Easily convert numbers between Decimal, Binary, Octal, and Hexadecimal bases. This utility app offers a straightforward interface for quick and accurate number base conversions.

**Highlights:** Decimal conversion, Binary conversion, Octal conversion, Hexadecimal conversion, Simple interface

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


### Convex Programmer's Calculator

[App page](https://appshunter.io/ios/app/convex-programmers-calculator/id1021414602)

Convert numbers between hexadecimal, decimal, octal, and binary. Perform byte flips, bit shifts, and calculate two's complement. Features bit indicators and word grouping for improved binary readability.

**Highlights:** Number base conversion, Two's complement calculation, Byte flipping for endianness, Left and right bit shifting, Binary readability enhancements, Copy, paste, and clear functionality

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Numbers Converter free?

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

### Is Convex Programmer's Calculator free?

Convex Programmer's Calculator is free to download, with no in-app purchases.

### Which has better reviews, Numbers Converter or Convex Programmer's Calculator?

Convex Programmer's Calculator is rated higher. Numbers Converter averages 1.0 out of 5 from 1 ratings, while Convex Programmer's Calculator averages 4.7 from 6 ratings.

### Do Numbers Converter or Convex Programmer's Calculator have ads?

Neither Numbers Converter nor Convex Programmer's Calculator shows ads.

### Which is updated more often, Numbers Converter or Convex Programmer's Calculator?

Numbers Converter ships an update monthly, and Convex Programmer's Calculator every 8 months. Most recently, Numbers Converter was updated on October 10, 2026 and Convex Programmer's Calculator on October 13, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*