# Convex Programmer's Calculator vs isPrime?

The clearest difference is update cadence: Convex Programmer's Calculator at every 8 months against isPrime?'s every 16 months. isPrime?'s advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

Convex Programmer's Calculator ships an update every 8 months, isPrime? every 16 months. The most recent releases landed on November 1, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Convex Programmer's Calculator | isPrime? |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (6 ratings)](https://appshunter.io/ios/app/convex-programmers-calculator/id1021414602/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 16 months |
| Monetization | Free | — |
| Size | 0 MB | 4 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Matthew Daigle](https://appshunter.io/developer/1021414601) | [Omer Faruk Mesebuken](https://appshunter.io/developer/1655501999) |

## What reviewers say

### 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


### isPrime?

[App page](https://appshunter.io/ios/app/isprime/id6478832061)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Convex Programmer's Calculator free?

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

### Is isPrime? free?

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

### Do Convex Programmer's Calculator or isPrime? have ads?

Neither Convex Programmer's Calculator nor isPrime? shows ads.

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

Convex Programmer's Calculator ships an update every 8 months, and isPrime? every 16 months. Most recently, Convex Programmer's Calculator was updated on November 1, 2026 and isPrime? on November 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.*