Comparison

Uno Calculator vs iHP48

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

Head to head
About

Uno Calculator

This app offers a comprehensive suite of calculation tools, handling everything from basic arithmetic to complex unit conversions. It supports measurements for size, temperature, speed, energy, and currency, making it a versatile solution for diverse needs.

Highlights
  • Arithmetic calculations
  • Unit conversions
  • Size measurements
  • Temperature conversions
  • Speed calculations
  • Energy calculations
  • Currency exchange
Read full description

The powerful Uno Calculator receives a makeover from Uno Platform with a wide variety of features. From calculations to measurements of size, temperature, speed, energy, currency and more, the calculator is a powerful one-stop-shop for all calculation-related needs.

About

iHP48

This app brings the powerful HP48 calculator experience to your mobile device. It offers enhanced performance, seamless file management, and a customizable interface with support for various HP calculator models. Enjoy a familiar and convenient calculator solution without needing extra hardware.

Highlights
  • Supports HP38, HP39, HP48, HP49, HP50 calculators
  • Haptic feedback and customizable zoom options
  • Seamless file transfer via iTunes and Files app
  • Cloud storage integration (iCloud, OneDrive, Dropbox)
  • Object saving/loading and copy/paste functionality
  • Access to calculator packages, skins, and ROMs
  • Internal file manager and extensible settings
Features
Read full description

Introducing iHP48 - Your Ultimate Calculator Companion iHP48 emerges from the necessity to revive the unparalleled calculator experience cherished by university students and engineers across various disciplines. Reviving the legacy of the original calculator, iHP48 delivers enhanced performance without the burden of carrying an additional device in your bag. Experience the simplicity and convenience of having the powerful HP48 at your fingertips once again. Key Features: Wide Compatibility: iHP48 supports HP38, HP39, HP48, HP49, and HP50 calculators. Easily configure your preferred calculator with the Fetch options. Enhanced User Experience: Enjoy Haptic feedback on keypress and customizable haptic styles via Settings. Zoom options tailored to your iPhone and preferences, including a new lift zoom for XS devices. Seamless File Management: Transfer files effortlessly from your computer using iTunes on both PC's and MacOS. Access iHP48 files directly from your device using the Files app and share them with any compatible iOS app. Copy files to and from your favorite cloud providers supported by the Files app, such as iCloud Drive, OneDrive, and Dropbox. Convenient Object Handling: Save or Load objects to/from your device using Files, ensuring your favorite .lib is readily available on your iHP48 stack. Copy and Paste supported objects seamlessly between iOS and the iHP48 Stack. Comprehensive Library: Access a rich library of Calculator Packages, Skin Collections, ROM's, and useful libraries like Meta Kernel and QPI. Intuitive Interface: Benefit from an internal File Manager for simplified file management and an extensible Settings administration accessible directly from the Settings app or via a shortcut from the iHP48 menu. Customizable Experience: Save your current calculator configuration for easy access. Explore special features embedded in various skins, including screen swipes, sounds, and orientation options. No Hidden Costs: iHP48 is completely free, devoid of any enterprise, professional, plus, or ultimate versions. There are no hidden features or payments required. We greatly appreciate any support you offer as we continue to enhance and refine iHP48. For additional information, visit https://www.thinkchile.com/iHP48. Experience the power of the legendary HP48, reinvented for the modern era with iHP48.

Screenshots

Uno Calculator3 screens
iHP484 screens

Verdict

The call

The clearest difference is update cadence: iHP48 at monthly against Uno Calculator's every 5 months. iHP48 also leads on review sentiment (88% vs 73%). On price, rating, ratings volume and ads 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

On the App Store both sit at effectively the same score — 4.6 for Uno Calculator against 4.6 for iHP48. Both are backed by a comparable volume of ratings — 116 and 302 respectively. Written reviews are what separate them: 73% of Uno Calculator's written reviews are positive against 88% of iHP48's.

UpkeepUpdate frequency

Uno Calculator ships an update every 5 months, iHP48 monthly. Both last shipped on October 24, 2026.

Scorecard2 real differences · 8 level
Uno Calculator versus iHP48: the parameters behind the verdict, then further details
ParameterUno CalculatoriHP48
PriceFreeFree
Rating4.6 (116 ratings)4.6 (302 ratings) — better
Positive reviews73.2% of reviews88.3% of reviews — better
Number of ratings116302 — better
Update frequencyEvery 5 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS14.2 — better15.0
Further details — not scored
Size96 MB6 MB
Age rating4+4+
DeveloperUno Platform Inc.Alexis Lorca

Customer experience

Uno Calculator

All ratings113 ratings
Positive89.4%
Neutral5.3%
Negative5.3%
Written reviews149 reviews
Positive73.2%
Neutral9.4%
Negative17.4%

iHP48

All ratings270 ratings
Positive90.7%
Neutral3.0%
Negative6.3%
Written reviews196 reviews
Positive88.3%
Neutral4.1%
Negative7.7%

User reviews

Uno Calculator

From 116 App Store ratings

What we love

  • 💰 Completely free with no ads or in-app purchases
  • 🎨 Clean, minimalist, and intuitive user interface
  • 🔧 Multiple calculator modes (standard, scientific, programmer)
  • 📊 Useful unit conversion features
  • 📜 Helpful history and memory panes for tracking calculations

Room to improve

  • ⌨️ No keyboard input support on Mac or iPad (major recurring complaint)
  • 📍 Calculator buttons positioned on left side (inconvenient for right-handed users)
  • 📜 History pane cannot be hidden or minimized
  • ⏱️ Slower app launch time compared to stock calculator
  • 🐢 Laggy performance on macOS with slow button responsiveness

iHP48

From 302 App Store ratings

What we love

  • 🚀 Excellent emulation of HP48
  • 👍 Familiar and nostalgic feel
  • 👍 Comprehensive functionality
  • 👍 Customizable skins
  • 👍 Haptic feedback

Room to improve

  • 🐛 Occasional crashes or freezes
  • 🐛 Missed keystrokes when typing quickly
  • 🐛 Blank or flickering display
  • 🐛 Compatibility issues with newer iOS versions

Bugs and requests

Uno Calculator

Reported bugs

10 issues
  • Standard calculator mode doesn't follow order of operations (1+2*3 = 9 instead of 7)
  • Buttons disappear while using on iPad
  • Apple Pencil input causes buttons to blend into background
  • Slow key responsiveness on macOS
  • Numeric keypad input not recognized from Apple keyboard
Show 5 more
  • History not persisting after app closure
  • Text rendering issues on larger iPad displays
  • Unit conversion errors (volume translated incorrectly in Chinese)
  • Slow data entry on macOS Catalina
  • Landscape mode layout issues

Requested features

11 requests
  • Keyboard input support for Mac and iPad (most requested)
  • Copy and paste functionality for results and formulas
  • Option to reposition calculator buttons to right side
  • Ability to hide or collapse history pane
  • Persistent history that saves after app closes
Show 6 more
  • Sound/click feedback option in settings
  • Donation option within the app
  • Improved dark mode styling
  • Bluetooth keyboard support
  • Numeric keypad support for external keyboards
  • Currency conversion feature restoration

iHP48

Reported bugs

3 issues
  • Crashes on startup
  • Inability to save state across sessions
  • Incompatibility with certain iOS devices

Requested features

4 requests
  • Dark mode option
  • Ability to disable haptic feedback
  • Support for HP50G emulation
  • Improved keyboard mapping and arrow key functionality

In-app purchases

None

Uno Calculator

No in-app purchases

None

iHP48

No in-app purchases

Questions

Is Uno Calculator free?
Uno Calculator is free to download, with no in-app purchases.
Is iHP48 free?
iHP48 is free to download, with no in-app purchases.
Which has better reviews, Uno Calculator or iHP48?
iHP48 is rated higher. Uno Calculator averages 4.6 out of 5 from 116 ratings, while iHP48 averages 4.6 from 302 ratings.
Do Uno Calculator or iHP48 have ads?
Neither Uno Calculator nor iHP48 shows ads.
Which is updated more often, Uno Calculator or iHP48?
Uno Calculator ships an update every 5 months, and iHP48 monthly. Most recently, Uno Calculator was updated on October 24, 2026 and iHP48 on October 24, 2026.

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