Comparison

iHP48 vs DB48X

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

Head to head
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.

About

DB48X

This advanced scientific calculator offers arbitrary precision computations, RPN and algebraic operations, and extensive graphing capabilities. It supports complex numbers, matrices, symbolic calculations, and over 1000 built-in functions, inspired by the HP48 series.

Highlights
  • Arbitrary precision computations
  • RPN and algebraic operations
  • Complex numbers, vectors, and matrices
  • Symbolic computations and numerical solving
  • Graphing and plotting
  • Engineering units and currency conversion
  • Built-in hyperlinked help system
Features
Read full description

DB48X is a new high-precision scientific calculator inspired by the legendary HP48 series from Hewlett-Packard. It is not an emulator, but a redesign from scratch, which is faster, and delivers never seen before capabilities like computations in arbitrary precision. Like the original HP48, DB48X supports an unlimited stack, RPN and algebraic operations, complex numbers, based numbers, vectors, matrices, text, symbolic computations, numerical solving and integration, graphing and plotting, statistics, engineering units, and well over 1000 built-in functions. DB48X adds several HP50G capabilities, including a library of equations and constants covering mathematics, physics or chemistry. Using modern technologies, DB48X goes well beyond the original HP48 in many ways: - It is significantly faster, uses less memory, and features a higher-resolution 240x400 pixels graphical display. - Integer and decimal values can have an arbitrarily large number of digits, so you can compute log(pi) with 200 digits in a few keystrokes. - The six function keys feature up to three function per key, giving quick access to up to 18 related functions at a time. - Complex numbers can mix and match polar and rectangular form. - Symbolic operations extend to complex numbers, vectors and matrices. - Based numbers can be in any base from 2 to 36, and support any number of bits, making it easy to emulate a 23-bit or 512-bit processor. - Text is represented using Unicode instead of the proprietary HP encoding, facilitating data exchange with the rest of the world. - Multiple graphs can be distinguished using bitmap patterns (DB50X adds the ability to use colors) - Engineering units include all the modern evolutions of the SI system, and can be configured by the user, e.g. to integrate currency units with the exchange rate du jour. Converting between USD/hour and EUR/day has never been so easy! - A built-in hyperlinked help system documents functions simply by holding the corresponding key, and combine a quick start guide, a user manual and a reference manual. DB48X will run many user RPL programs as is. However, since it is not an emulator, it will not run any HP binary object, and notably will not run HP48 games or anything involving system RPL. DB48X is part of a family of compatible RPL calculators that include the free DB40X and the color DB50X.

Screenshots

iHP484 screens
DB48X3 screens

Verdict

The call

The clearest difference is price: iHP48 at Free against DB48X's $4.99. iHP48 also leads on ratings volume (302 vs 4). DB48X's advantage is chart position (#188 vs unranked) and review sentiment (100% vs 88%). On rating, update cadence, 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

iHP48 is free to download; DB48X costs $4.99 up front. 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 iHP48 against 4.8 for DB48X. That said, the two scores are not equally well evidenced: iHP48 has 302 ratings behind it against 4, so its average is the more settled of the two. Written reviews are what separate them: 88% of iHP48's written reviews are positive against 100% of DB48X's.

UpkeepUpdate frequency

iHP48 ships an update monthly, DB48X every 3 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard5 real differences · 6 level
iHP48 versus DB48X: the parameters behind the verdict, then further details
ParameteriHP48DB48X
PriceFree — better$4.99
Rating4.6 (302 ratings)4.8 (4 ratings) — better
Positive reviews88.3% of reviews100.0% of reviews — better
Number of ratings302 — better4
Update frequencyMonthlyEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
Best chart rank—#188 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.014.0 — better
Further details — not scored
Size6 MB7 MB
Age rating4+4+
DeveloperAlexis LorcaChristophe de Dinechin

Customer experience

iHP48

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

DB48X

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

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

DB48X

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

iHP48

No in-app purchases

None

DB48X

No in-app purchases

Questions

Is iHP48 free?
iHP48 is free to download, with no in-app purchases.
Is DB48X free?
DB48X costs $4.99, with no in-app purchases.
Which has better reviews, iHP48 or DB48X?
DB48X is rated higher. iHP48 averages 4.6 out of 5 from 302 ratings, while DB48X averages 4.8 from 4 ratings.
Do iHP48 or DB48X have ads?
Neither iHP48 nor DB48X shows ads.
Which is updated more often, iHP48 or DB48X?
iHP48 ships an update monthly, and DB48X every 3 weeks. Most recently, iHP48 was updated on October 24, 2026 and DB48X on October 25, 2026.

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