Convex Programmer's Calculator vs CompSci Calculator
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.
CompSci Calculator
Perform calculations and conversions between decimal, hexadecimal, and binary bases in real-time. Ideal for programmers and computer scientists, it offers simultaneous display of values across all three modes and supports bitwise operations and complements.
- Decimal, hexadecimal, and binary base calculations
- Real-time simultaneous conversion
- Basic algebra between bases
- Selectable bit size (8, 16, 24, 32)
- Bitwise functions
- 1's and 2's complements
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CompSci Calculator lets you calculate in three different bases: decimal, hexadecimal, and binary. CompSci Calculator was developed for programmers, developers, computer engineers, and computer scientists. In real time you can do part of an equation in one base and then switch to another and complete the equation. As you type in any particular base the values in all three modes are displayed together. Because of the real time instant conversion between the bases CompSci Calculator also serves as an excellent conversion tool. Features: -basic algebra between bases -simultaneous answers in all three bases -selectable bit size: 8,16,24,32 -optional additional 16 bits of radix point precision -bitwise functions -1's and 2's complements -shift left and shift right Student and teacher feedback is very appreciated!
Screenshots
Verdict
The clearest difference is ads: Convex Programmer's Calculator at none against CompSci Calculator's shown. Convex Programmer's Calculator also leads on rating (4.7 vs 4.4) and monetization model (free vs ad-supported). CompSci Calculator's advantage is update cadence (every 3 days vs every 8 months) and ratings volume (42 vs 6). On price, review sentiment and in-app purchases 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 holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: CompSci Calculator has 42 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 67% of Convex Programmer's Calculator's written reviews are positive against 63% of CompSci Calculator's.
Convex Programmer's Calculator ships an update every 8 months, CompSci Calculator every 3 days. The most recent releases landed on September 27, 2026 and October 10, 2026 respectively.
| Parameter | Convex Programmer's Calculator | CompSci Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (6 ratings) — better | 4.4 (42 ratings) |
| Positive reviews | 66.7% of reviews — better | 62.5% of reviews |
| Number of ratings | 6 | 42 — better |
| Update frequency | Every 8 months | Every 3 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 0 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | Matthew Daigle | Corey Smith |
Customer experience
Convex Programmer's Calculator
CompSci Calculator
In-app purchases
Convex Programmer's Calculator
No in-app purchases
CompSci Calculator
No in-app purchases
Questions
Is Convex Programmer's Calculator free?
Is CompSci Calculator free?
Which has better reviews, Convex Programmer's Calculator or CompSci Calculator?
Do Convex Programmer's Calculator or CompSci Calculator have ads?
Which is updated more often, Convex Programmer's Calculator or CompSci Calculator?
Other comparisons
