Dev Calculator vs Programmer Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Dev Calculator
A free, ad-free developer calculator focused on bitwise operations and base conversions. It supports unsigned integers up to 64 bits and includes features like shifting, rotating, and casting.
- Bitwise operations (AND, NOT, OR, XOR)
- Shifting and rotating
- Casting support
- 64-bit unsigned integer support
- Base conversions
- No ads
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Full featured, completely free, developer calculator with no ads. Designed primarily for bit operations and quick conversion of bases. In-app purchases don't affect features and are only meant as a way to donate to the developer for his effort. Supports bitwise operations like AND, NOT, OR, XOR. Also supports shifting, rotating and casting. This calculator supports unsigned integers up to 64 bits.
Programmer Calculator
Instantly convert between Hex, Decimal, Octal, and Binary number bases. Perform bitwise operations and choose your bit width for precise calculations. Features real-time updates, history, and dark mode support for developers and students.
- Hex, Decimal, Octal, Binary conversion
- Bitwise operations (AND, OR, XOR, NOT)
- Adjustable bit width (8, 16, 32, 64, unlimited)
- Real-time bit visualization
- Calculation history
- Dark mode support
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Hex, decimal, octal and binary — all four bases on one screen, updating as you type. Programmer Calculator is a base converter and bitwise calculator for developers, engineers and computer science students. CALCULATE IN ANY BASE • Enter an expression in hex, decimal, octal or binary and read the result in all four at once • Arithmetic with +, −, ×, ÷, parentheses and operator precedence • Bitwise operators: AND, OR, XOR, NOT, shift left and shift right MATCH YOUR INTEGER TYPE • Word size: 8, 16, 32, 64 bits or unlimited • Signed or unsigned representation SEE EVERY STEP • Open the steps view on any calculation • Every operation and intermediate value, in the order they are applied HISTORY • Every calculation you confirm is saved on your device • Tap an entry to bring it back into the calculator BUILT FOR THE JOB • Light and dark mode • iPhone and iPad, in portrait and landscape • No account required WHO IT IS FOR • Developers working in C, C++, Swift, Kotlin, Rust, Go and assembly • Embedded and hardware engineers working with registers, masks and flags • Students learning number systems, two's complement and bitwise logic Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: Dev Calculator at 100% against Programmer Calculator's 0%. Dev Calculator also leads on rating (5.0 vs 4.3) and in-app purchases (none vs 3). Programmer Calculator's advantage is update cadence (every 5 days vs every 11 days) and chart position (#122 vs unranked). On price, ratings volume, ads and device support 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. Programmer Calculator sells 3 in-app purchases, starting at $0.99 per month. Dev Calculator asks for nothing beyond the download.
Dev Calculator holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 4 and 4 respectively. Written reviews point the same way: 100% of Dev Calculator's written reviews are positive against 0% of Programmer Calculator's.
Dev Calculator ships an update every 11 days, Programmer Calculator every 5 days. The most recent releases landed on September 1, 2026 and September 21, 2026 respectively.
| Parameter | Dev Calculator | Programmer Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | 4.3 (4 ratings) |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 4 | 4 |
| Update frequency | Every 11 days | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Best chart rank | — | #122 — better |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 0 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Scott Lassen | Matheus Valbert |
Customer experience
Dev Calculator
Programmer Calculator
In-app purchases
Dev Calculator
No in-app purchases
Programmer Calculator
- Premium monthly$0.991 Month
- Premium yearly$5.991 Year
- Premium lifetime$9.99





