Comparison

DB50X vs IoMBTC Wireless Data Comm

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

Head to head
About

DB50X

This scientific calculator offers high-precision computations with arbitrary precision for numbers. It supports advanced functions like complex numbers, matrices, symbolic calculations, and graphing, with a user-friendly interface and extensive built-in help.

Highlights
  • Arbitrary precision calculations
  • RPN and algebraic operations
  • Complex numbers, vectors, matrices
  • Symbolic and numerical solving
  • Graphing and plotting
  • Engineering units and constants
  • Unicode text support
Features
Read full description

DB50X is a new high-precision scientific calculator inspired by the legendary HP50G 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 HP50G, 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. It integrates a library of equations and constants covering mathematics, physics or chemistry. Using modern technologies, DB50X goes well beyond the original HP50G in many ways: - It is significantly faster, uses less memory, and features a higher-resolution 240x400 pixels graphical color 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 colour patterns - 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. - Over 700K of memory is available for RPL programs. - Access to iCloud to save your program and edit them from your Mac. DB508X will run many user RPL programs designed for the HP48, HP49 or HP50 directly as is. However, since it is not an emulator, it will not run any HP binary object, and notably will not run HP50G games or anything involving system RPL. This is an early-access release. Please consult https://github.com/c3d/db48x/blob/stable/doc/5-Unimplemented.md for a list of commands that are not yet implemented. DB50X is part of a family of related calculators that include the black-and-white DB48X and the entry-level DB40X.

About

IoMBTC Wireless Data Comm

Features
Read full description

This App is part of the IoMBTC family. It connects to digital multimeters (DMMs) via Bluetooth to collect measurement data for display, analysis, and logging.

Screenshots

DB50X4 screens
IoMBTC Wireless Data Comm4 screens

Verdict

The call

The clearest difference is price: IoMBTC Wireless Data Comm at Free against DB50X's $9.99. IoMBTC Wireless Data Comm also leads on iOS requirement (12.0 vs 14.0). DB50X's advantage is update cadence (every 3 weeks vs every 2 months) and chart position (#189 vs unranked). On 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

IoMBTC Wireless Data Comm is free to download; DB50X costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

DB50X ships an update every 3 weeks, IoMBTC Wireless Data Comm every 2 months. The most recent releases landed on October 11, 2026 and October 7, 2026 respectively.

Scorecard4 real differences · 7 level
DB50X versus IoMBTC Wireless Data Comm: the parameters behind the verdict, then further details
ParameterDB50XIoMBTC Wireless Data Comm
Price$9.99Free — better
Rating5.0 (8 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings8 — better—
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
Best chart rank#189 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS14.012.0 — better
Further details — not scored
Size7 MB42 MB
Age rating4+4+
DeveloperChristophe de DinechinYuan-an CHEN

In-app purchases

None

DB50X

No in-app purchases

None

IoMBTC Wireless Data Comm

No in-app purchases

Questions

Is DB50X free?
DB50X costs $9.99, with no in-app purchases.
Is IoMBTC Wireless Data Comm free?
IoMBTC Wireless Data Comm is free to download, with no in-app purchases.
Do DB50X or IoMBTC Wireless Data Comm have ads?
Neither DB50X nor IoMBTC Wireless Data Comm shows ads.
Which is updated more often, DB50X or IoMBTC Wireless Data Comm?
DB50X ships an update every 3 weeks, and IoMBTC Wireless Data Comm every 2 months. Most recently, DB50X was updated on October 11, 2026 and IoMBTC Wireless Data Comm on October 7, 2026.

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