DB50X vs ANY Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
ANY Calculator
Design and use custom calculators from photos or drawings. Personalize keys, functions, and themes for basic math, scientific, or programmable needs. Includes a history log and a matching game for kids.
- Create calculators from photos or drawings
- Customizable buttons and functions
- Personalize keys and display
- Scientific and RPN support
- History list with undo/redo
- Built-in matching game for kids
- Save, share, and import calculators
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ANY Calculator lets you design, customize, and use calculators exactly the way you want. With built-in history. Build your own calculator from any image — or draw one by hand! Define big, easy-to-tap keys, choose only the functions you need, and make it fully interactive. From basic math to advanced scientific or programmable layouts, ANY Calculator adapts to you. Features • Create calculators from photos or drawings • Add large custom-size buttons and choose any functions you like • Personalize keys, display areas, and themes • Portrait & landscape modes with independent layouts • Scientific and RPN calculator support • History list with undo / redo and expression tracking • Built-in matching game — a fun way for kids to learn key positions • Save, share, and import calculators easily • Optional Pro upgrade removes ads and unlocks advanced tools Why ANY Calculator? • Combines the power of a scientific calculator with complete design freedom • Ideal for students, engineers, teachers, and creators • Great for kids — they can draw a calculator and make it really work! • Perfect for replicating vintage or specialized calculators Whether you need a basic math tool, a programmable scientific calculator, or a creative learning project, ANY Calculator makes it possible. Download today and start building the perfect calculator for you — big buttons, simple layouts, endless possibilities.
Screenshots
Verdict
The clearest difference is price: ANY Calculator at Free against DB50X's $9.99. ANY Calculator also leads on update cadence (every 5 days vs every 3 weeks). DB50X's advantage is in-app purchases (none vs 1) and ads (none vs shown). On rating 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
ANY Calculator is free to download; DB50X costs $9.99 up front. ANY Calculator sells 1 one-off in-app purchase. DB50X asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for DB50X against 5.0 for ANY Calculator. That said, the two scores are not equally well evidenced: DB50X has 9 ratings behind it against 1, so its average is the more settled of the two.
DB50X ships an update every 3 weeks, ANY Calculator every 5 days. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.
| Parameter | DB50X | ANY Calculator |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 5.0 (9 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 9 — better | 1 |
| Update frequency | Every 3 weeks | Every 5 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Best chart rank | #163 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 18.5 |
| Further details — not scored | ||
| Size | 7 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Christophe de Dinechin | David Drouin |
Customer experience
DB50X
ANY Calculator
In-app purchases
DB50X
No in-app purchases
ANY Calculator
- ANY Calculator Pro Upgrade$4.99









