Comparison

DB48X vs One Balance

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

Head to head
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.

About

One Balance

This app connects to your device via Bluetooth to control its pointer color and switch. It also displays device information like color, time, and battery level. Account management includes logout and data deletion options.

Highlights
  • Bluetooth device connection
  • Pointer color control
  • Pointer switch control
  • Device information display
  • Account logout
  • Account deletion
Features
Read full description

Users can create accounts through One Balanchuan, which supports account logout and deletion (logging out of an account only means logging out, deleting an account will clear the information of the account locally and in the cloud). The main function of One Balanchuan is to connect the device Bluetooth, control the pointer switch, pointer color, etc. of the device, and the APP will display some device information, such as device color, device time, device battery level, etc One Balance controls the operation video link of specified devices:http://snjzxmozw.sabkt.gdipper.com/video/demonstrate.mp4

Screenshots

DB48X3 screens
One Balance1 screens

Verdict

The call

The clearest difference is price: One Balance at Free against DB48X's $4.99. DB48X's advantage is rating (4.8 vs 4.0) and chart position (#198 vs unranked). On update cadence, ads, 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

CostPrice · In-app purchases · Ads · Monetization

One Balance 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

DB48X holds the better App Store score, 4.8 against 4.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

UpkeepUpdate frequency

DB48X ships an update every 3 weeks, One Balance every 4 weeks. The most recent releases landed on October 20, 2026 and October 22, 2026 respectively.

Scorecard5 real differences · 6 level
DB48X versus One Balance: the parameters behind the verdict, then further details
ParameterDB48XOne Balance
Price$4.99Free — better
Rating4.8 (4 ratings) — better4.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings4 — better1
Update frequencyEvery 3 weeks — betterEvery 4 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
Best chart rank#198 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS14.013.0 — better
Further details — not scored
Size7 MB69 MB
Age rating4+17+
DeveloperChristophe de Dinechinwallle

In-app purchases

None

DB48X

No in-app purchases

None

One Balance

No in-app purchases

Questions

Is DB48X free?
DB48X costs $4.99, with no in-app purchases.
Is One Balance free?
One Balance is free to download, with no in-app purchases.
Which has better reviews, DB48X or One Balance?
DB48X is rated higher. DB48X averages 4.8 out of 5 from 4 ratings, while One Balance averages 4.0 from 1 ratings.
Do DB48X or One Balance have ads?
Neither DB48X nor One Balance shows ads.
Which is updated more often, DB48X or One Balance?
DB48X ships an update every 3 weeks, and One Balance every 4 weeks. Most recently, DB48X was updated on October 20, 2026 and One Balance on October 22, 2026.

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