MongoDBProg2 vs DB50X
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MongoDBProg2
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Are you a MongoDB database user and ever wished about exploring the database from iOS devices by touch from anywhere, then this is a powerful companion tool for you to remotely visualize and explore the MongoDB database in an intuitive way. For detailed information please visit http://makeprog.com FEATURES • Visualize, search & script database objects. • Database objects can be viewed in Tiles & Table view. • Administer database by scripting. • Multi tab query runner with asynchronous & parallel query execution. • Send any kind of ad-hoc query and browse the results. • Save queries to iOS device and reuse. • Theme support for user interface. SHARING • Email script and query results instantly. • Download saved queries using iTunes. EXPLORE • Users & Databases • Collections, Indexes • Charting is possible with the collection data. (Optional) WINDOWSPROG BRIDGE SERVER (FREE) • This iOS application requires a Bridge Server to be installed in a Windows Machine to process the requests made by iOS Devices. • The Bridge Server is the one stop communication point for iDB2Prog and DB2 and it can be downloaded for free from http://makeprog.com • Works Over 3G/4G. • Refer to http://makeprog.com/Products/iWindowsProg/WindowsProgBridgeServer.aspx for more info and why it makes your database stay secure. Privacy Policy : http://makeprog.com/documents/Privacy Policy.pdf Terms & Conditions : http://makeprog.com/documents/Terms and Conditions.pdf
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.
Screenshots
Verdict
The clearest difference is update cadence: DB50X at every 3 weeks against MongoDBProg2's every 5 months. MongoDBProg2's advantage is iOS requirement (9.3 vs 14.0). On price, 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
MongoDBProg2 costs $9.99 and DB50X $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
MongoDBProg2 ships an update every 5 months, DB50X every 3 weeks. The most recent releases landed on September 23, 2026 and September 24, 2026 respectively.
| Parameter | MongoDBProg2 | DB50X |
|---|---|---|
| Price | $9.99 | $9.99 |
| Rating | — | 5.0 (8 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 8 — better |
| Update frequency | Every 5 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.3 — better | 14.0 |
| Further details — not scored | ||
| Size | 219 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Balasubramanian Ramanathan | Christophe de Dinechin |
In-app purchases
MongoDBProg2
No in-app purchases
DB50X
No in-app purchases









