Comparison

UXPin Mirror vs HP16C

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Real-time prototype preview
  • View on actual devices
  • Automatic updates
  • QR code scanning
  • No USB or Wi-Fi needed
Features
Read full description

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!

About

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.

Highlights
  • 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
Features
Read full description

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

UXPin Mirror3 screens
HP16C4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

UXPin Mirror ships an update every 7 months, HP16C weekly. Both last shipped on October 24, 2026.

Scorecard2 real differences · 8 level
UXPin Mirror versus HP16C: the parameters behind the verdict, then further details
ParameterUXPin MirrorHP16C
PriceFreeFree
Rating1.8 (10 ratings)4.3 (4 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings10 — better4
Update frequencyEvery 7 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.4 — better17.0
Further details — not scored
Size34 MB1 MB
Age rating4+4+
DeveloperUXPinMichael Doornbos

Customer experience

UXPin Mirror

All ratings10 ratings
Positive10.0%
Neutral10.0%
Negative80.0%
Written reviews11 reviews
Positive0.0%
Neutral18.2%
Negative81.8%

HP16C

All ratings3 ratings
Positive66.7%
Neutral33.3%
Negative0.0%

In-app purchases

None

UXPin Mirror

No in-app purchases

None

HP16C

No in-app purchases

Questions

Is UXPin Mirror free?
UXPin Mirror is free to download, with no in-app purchases.
Is HP16C free?
HP16C is free to download, with no in-app purchases.
Which has better reviews, UXPin Mirror or HP16C?
HP16C is rated higher. UXPin Mirror averages 1.8 out of 5 from 10 ratings, while HP16C averages 4.3 from 4 ratings.
Do UXPin Mirror or HP16C have ads?
Neither UXPin Mirror nor HP16C shows ads.
Which is updated more often, UXPin Mirror or HP16C?
UXPin Mirror ships an update every 7 months, and HP16C weekly. Most recently, UXPin Mirror was updated on October 24, 2026 and HP16C on October 24, 2026.

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