UXPin Mirror vs HP16C
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
UXPin Mirror
Instantly preview your UXPin prototypes on your mobile devices in real time. See how your designs look and perform on actual hardware as you make changes, without needing a USB connection or Wi-Fi. Simply scan a QR code to begin.
- Real-time prototype preview
- View on actual devices
- Automatic updates
- QR code scanning
- No USB or Wi-Fi needed
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UXPin Mirror makes previewing your prototypes on real devices fast and easy. It takes a few taps to ensure mobile prototypes look and perform the way you intended by viewing them in real time on actual devices. As you make changes in the prototype, the preview on your device updates automatically. There is no need to connect via USB or use Wi-Fi network, just scan the QR code to view your prototype!
HP16C
This app faithfully recreates the legendary HP 16C Computer Scientist calculator, offering advanced hex arithmetic, bit manipulation, and base conversion. It features RPN, keystroke programming, and modern enhancements like a two-line display and haptic feedback.
- Full RPN calculator
- Integer arithmetic (HEX, DEC, OCT, BIN)
- Configurable word size (1-64 bits)
- Complete bit operations
- Keystroke programming
- Two-line display
- Haptic feedback
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A faithful recreation of the legendary HP 16C Computer Scientist calculator for iPhone, with a few modern upgrades. If you've ever needed to perform hex arithmetic, bit manipulation, or base conversion on your phone and been frustrated by the available options, this is for you. RPN-16C gives you the full power of the original HP 16C in your pocket. WHAT IT DOES - Full RPN (Reverse Polish Notation) calculator - Integer arithmetic in HEX, DEC, OCT, and BIN - Configurable word size from 1 to 64 bits - Unsigned, one's complement, and two's complement modes - Complete bit operations: shift, rotate, rotate through carry, AND, OR, XOR, NOT, mask, bit set/clear/test, count bits, left justify - Float mode with configurable precision (FLOAT 0-9) - Keystroke programming with labels, subroutines, loops, and conditionals - Storage registers with direct and indirect addressing - Programs can be imported from text (long-press the display to paste) ENHANCEMENTS OVER THE ORIGINAL - Two-line display: see both X and Y registers at once. No more guessing what's on the stack. - Wider LCD: displays all 32 bits in binary without scrolling. The original could only show 8 at a time. - Haptic feedback on every key press - State persistence: pick up right where you left off - SHOW function to peek at values in other bases FAIR WARNING This is a quirky calculator. It uses Reverse Polish Notation, has no equals key, and expects you to know what two's complement means. If you're looking for a simple calculator, this is not it. If you've ever wished you could do a bitwise rotate through carry on your phone, welcome home. DESIGNED FOR PROGRAMMERS The key layout matches the physical HP 16C exactly, including the f (gold) and g (blue) shift labels. If you know the original, you already know this one. The original HP 16C Owner's Handbook is freely available on the Internet Archive: https://archive.org/details/hp-16c_handbook
Screenshots
Verdict
The clearest difference is rating: HP16C at 4.3 against UXPin Mirror's 1.8. HP16C also leads on update cadence (weekly vs every 7 months). On price, ratings volume, ads 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.
HP16C holds the better App Store score, 4.3 against 1.8. Both are backed by a comparable volume of ratings — 10 and 4 respectively.
UXPin Mirror ships an update every 7 months, HP16C weekly. Both last shipped on October 24, 2026.
| Parameter | UXPin Mirror | HP16C |
|---|---|---|
| Price | Free | Free |
| Rating | 1.8 (10 ratings) | 4.3 (4 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 10 — better | 4 |
| Update frequency | Every 7 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.4 — better | 17.0 |
| Further details — not scored | ||
| Size | 34 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | UXPin | Michael Doornbos |
Customer experience
UXPin Mirror
HP16C
In-app purchases
UXPin Mirror
No in-app purchases
HP16C
No in-app purchases









