Convex Programmer's Calculator vs isPrime?
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Convex Programmer's Calculator
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.
- Number base conversion
- Two's complement calculation
- Byte flipping for endianness
- Left and right bit shifting
- Binary readability enhancements
- Copy, paste, and clear functionality
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Easily convert between hexadecimal, decimal, octal, and binary. Calculate the two's complement of any number. Flip a number's bytes to switch its endianness. Bit-shift left and right. Bit indicators and word grouping make binary easier to read. Tap the number to copy, paste, and clear. Swipe left or right on the number to backspace.
isPrime?
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It's a fast prime number checker.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Convex Programmer's Calculator | isPrime? |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (6 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Every 8 months — better | Every 16 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 0 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Matthew Daigle | Omer Faruk Mesebuken |
In-app purchases
Convex Programmer's Calculator
No in-app purchases
isPrime?
No in-app purchases
Questions
Is Convex Programmer's Calculator free?
Is isPrime? free?
Do Convex Programmer's Calculator or isPrime? have ads?
Which is updated more often, Convex Programmer's Calculator or isPrime??
Other comparisons
