Javascript REPL vs BinaryHexCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Javascript REPL
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Hey there, code enthusiasts! Meet Javascript REPL – your new best friend for running JavaScript code on your mobile device. Whether you’re just starting out or you’ve been coding for years, this app is perfect for writing, testing, and running your code anytime, anywhere. Why You’ll Love It: Instant Results: Type your code and see it run immediately. Offline Mode: No internet? No problem! Run your code locally without any hassle. Easy to Use: Clean, simple interface that makes coding on mobile a breeze. Debugging Made Easy: Get clear error messages to help you fix your code quickly. Perfect for students, pros, and anyone who loves to code. Download Javascript REPL now and start coding on the go!
BinaryHexCalc
This calculator is designed for developers and computer science enthusiasts. It allows for instant conversion between hexadecimal, decimal, and binary number systems, along with advanced bitwise operations. Features include a 64-bit bit-set panel, mask & copy functionality, and equation history.
- Multi-base support (HEX, DEC, BIN)
- Real-time conversion
- 64-bit Bit-Set panel
- Bitwise operations (AND, OR, XOR, NOT, shifts)
- Mask & Copy functionality
- Equation history
- Dark/light mode UI
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Programmer Calc is a powerful calculator designed for developers, engineers, and computer science enthusiasts. Instantly convert between hexadecimal, decimal, and binary number systems, and perform advanced bitwise operations with ease. Key Features: - Multi-base support: HEX, DEC, BIN - Real-time conversion as you type - Interactive 64-bit Bit-Set panel for granular control - Bitwise operations: AND, OR, XOR, NOT, shifts, two’s complement - Mask & Copy: Highlight and copy masked values for any data type - Paste support: Long-press to paste values into any field - Equation history tracking - Square root and modulo operations - ntuitive UI with dark/light mode - Rate and feedback options The dashboard provides a single location to input and convert values among hexadecimal, decimal, and binary representations. Long-pressing any field pastes a number directly into the corresponding system for rapid entry. The Bit-Set panel offers granular control over every bit, updating all number formats immediately after each toggle. Multiplying values that exceed 64 bits returns 1, and square roots are rounded up to the nearest integer (for example, √15 becomes 4). The Mask & Copy feature highlights the bits for the selected data type and copies the masked value to the clipboard in one step, ensuring consistent data sharing. Whether you’re debugging, reverse engineering, or learning about binary math, Programmer Calc is your essential toolkit.
Screenshots
Verdict
The clearest difference is price: Javascript REPL at Free against BinaryHexCalc's $1.99. Javascript REPL also leads on iOS requirement (12.0 vs 15.2). BinaryHexCalc's advantage is ads (none vs shown). On in-app purchases 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
Javascript REPL is free to download; BinaryHexCalc costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Javascript REPL | BinaryHexCalc |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.2 |
| Further details — not scored | ||
| Size | 28 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | SEUNGWOO JO | Matthew Mesropian |
In-app purchases
Javascript REPL
No in-app purchases
BinaryHexCalc
No in-app purchases









