RPN 50g Downloads & RevenueRPN 50g · App Store
51 days old
RPN 50g is #31 in Education Paid in Brazil and charting in 1 of 30 countries we track.
Updated 8 Nov 2026 · rankings refresh through the day
DeveloperGuglielmo Pasa
CategoryEducation
Price5.99 GBP
Released
Rating★ 0.0 (0)
Version0.4.1
Age rating4+
First seen by us
29 Sep 2026
29 Sep 2026✏️Description updated📦Updated to version 0.4.1📈Charting in a new country📈New best rank in the overall chart: #117✏️Description updated📦Updated to version 0.4.0🆕Its developer released another app: RPN 12C🆕Its developer released another app: RPN 49G
Full timeline · 31 events
- ✏️RPN 50g: description updated· BR
- 📦RPN 50g updated to version 0.4.1• iPhone and iPad: each key answers where you touch it, on its cap and the labels above it. The touch areas reached down over the next row's labels, so the top of a key could miss.
• The ROM list gives only the release years HP published.
• Save Program… and Load Program… (the menu; on the Mac, the File menu): a variable's program to a text file and back, in HP's transfer form (%%HP: T(3)A(R)F(.);), the calculator compiling it itself.… more - 📈RPN 50g charting in a new countrySpain
- 📈RPN 50g new best rank in the overall chart: #117Top Paid · All Apps · ZA
- 📈RPN 50g charting in a new countrySouth Africa
- 📈RPN 50g entered the top 100 in 2 chartsTop Paid · Education · BR · Top Paid · Education · GB
- 📈RPN 50g charting in a new country in 2 chartsBrazil · United Kingdom
- ✏️RPN 50g: description updated· DE
- ✏️RPN 50g: new iPad screenshots· DE
- ✏️RPN 50g: new screenshots6 screenshots (was 6) · DE
- ✏️RPN 50g: app got bigger11 MB → 31 MB (+177%)
- ✏️RPN 50g: description updated· FR
- ✏️RPN 50g: new iPad screenshots· FR
- ✏️RPN 50g: new screenshots6 screenshots (was 6) · FR
- 📦RPN 50g updated to version 0.4.0• Trois faces au choix : la 50g noire, la 50g bleue et la HP 49g+ (menu → Face sur iPhone et iPad, View ▸ Face sur le Mac). Votre choix est mémorisé.
• Le téléchargement des ROM vérifie chaque paquet d'après son empreinte connue et, si hpcalc.org ne répond pas, prend la copie identique sur une sauvegarde : l'installation du firmware de la calculatrice continue de fonctionner.… more - 📦RPN 50g: now updating weekly4 updates in 30 days, after a quiet two months
- 🆕RPN 50g: its developer released another app: RPN 12C
- 🆕RPN 50g: its developer released another app: RPN 49G
- ✏️RPN 50g: new iPad screenshots· IT
- ✏️RPN 50g: new screenshots6 screenshots (was 6) · IT
- 📦RPN 50g updated to version 0.3.2• Maintenance release, built with the latest tools.
- 📈RPN 50g entered the top 100Top Paid · Education · IT
- ✏️RPN 50g: new screenshots6 screenshots (was 6) · DE
- 📦RPN 50g updated to version 0.3.1• Fixed: after the phone or the Mac woke from sleep, TIME could show the time it went to sleep for up to a minute. The time is now right the moment the app wakes.
- 📈RPN 50g entered the top 10Top Paid · Education · FR
- ✏️RPN 50g: new screenshots6 screenshots (was 6) · FR
- 📦RPN 50g updated to version 0.3• La carte SD suit désormais le dossier de l'app dans les deux sens, automatiquement : un fichier déposé dans le dossier « SD Card » de l'app Fichiers (ou dans le dossier monté sur Mac) apparaît sur la carte de la calculatrice (port 3) en quelques secondes, les fichiers écrits par la calculatrice y apparaissent, et un fichier supprimé d'un côté disparaît de l'autre.
• Corrigé : après la réouverture de l'app, la calculatrice ne pouvait plus lire la carte.
• Les noms longs sont conservés : la calculatrice affiche un nom 8.3 (« Prog copy.hp » devient PROGCOPY.HP sur la carte), et le fichier garde son nom complet dans Fichiers.… more - 🆕RPN 50g first spotted by AppInsider#99 in Top Paid · Education · Germany
- 🆕RPN 50g: its developer released another app: RPN 48
- 📦RPN 50g version 0.2• HP's manuals in the app: Quick Start Guide, User's Manual, User's Guide (English and French) and Advanced User's Reference, downloaded on request and kept on the device.
• PDF reader with the table of contents; the manual opens beside the calculator on iPad and comes back at the page where you left it.
• The RPN badge is the menu button.
• Faster keys, the calculator fills the whole screen.… more - 🆕RPN 50g released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
0.0 ★
0 ratings
Measured
Best rank now
#31
Education PaidMeasured
RPN 50g on the App Store
App details
App ID
6811794850
Publisher
Guglielmo Pasa
On the store since
Sep 2026
Under a year
Minimum OS
iOS 16.0+
iPhone 8 and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
1
EN
Size
31 MB
Also listed in
Utilities
Where RPN 50g's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Brazil | EducationPaid | #31 |
Apps near RPN 50g on the chart
Education Paid, around #31.
Ratings
App Store, worldwide.
Rating
0.0 ★
0 ratings
Measured
Ratings
0
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
5.0★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
54/100
faster than 57% of Education apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About RPN 50g
The HP 50g is the last and most powerful of a legendary line: HP 48S, 48G, 49G, 49g+ and finally the 50g — a quarter century of RPN and RPL calculators that engineers, physicists and mathematicians never really let go of. Discontinued in 2015, it remains the reference, and many consider it the best calculator ever made.
RPN 50g brings that machine to your iPhone and iPad — not an imitation, the real thing. The app emulates the calculator's hardware (its 75 MHz ARM processor, 512 KB of RAM, 2 MB of flash, the 131×80 display, the keyboard and the SD card slot) and runs HP's original firmware, so it behaves exactly as the calculator on your desk: every function, every mode, every flag, every quirk, key click included.
THE CALCULATOR
• An advanced computer algebra system: exact rational and arbitrary-precision integer arithmetic, symbolic simplification, factoring, polynomials, derivatives, integrals, limits, Taylor series, equation and system solving, linear algebra
• An advanced scientific calculator: complex numbers, vectors and matrices, statistics and regressions, unit conversions with dimensional analysis, base conversions (BIN/OCT/HEX) and bit operations, numeric solver, financial (TVM) calculations, date and time arithmetic
• Graphing: 2D function, polar, parametric, conic, slope field, differential equations, statistics and 3D wireframe/surface plots, with zoom, trace and analysis
• The Equation Library with over 300 equations of physics and engineering, with units
• RPN with the four-level or unlimited stack, or algebraic entry with the equation writer, at your choice
• Programmable in RPL (UserRPL and SysRPL): your programs and libraries run as on the real machine
THE APP
• Three faces: the black 50g, the blue 50g and the HP 49g+ — the 49g+ is the same machine, running the same firmware
• Firmware versions 2.15 (2009, with the 2 MB fix), 2.10 and 2.09 — switch between them, each keeps its own memory
• Your calculator's memory stays: close the app, come back later, it is exactly where you left it
• SD card: put files in the app's folder in Files and they appear on the calculator's card; what the calculator writes to the card lands in Files. Install libraries as on the real machine
• HP's manuals (User's Guide, Advanced User's Reference…) can be downloaded into the app and read next to the calculator; the app remembers your page
• Paste: type text from the clipboard onto the calculator
• Hardware keyboard support on iPad and iPhone
• The beeper, so BEEP and key clicks sound like the calculator
• Works fully offline, no account, no ads, no tracking
ABOUT THE FIRMWARE
The app contains no HP software. On first launch you pick a firmware version and it is downloaded from GitHub, where the app keeps an identical copy of the package published on hpcalc.org, the community archive that has hosted HP's own update packages for decades (each package checked against its known fingerprint); the image is then kept on your device.
HP, HP 48, HP 49g+ a
RPN 50g brings that machine to your iPhone and iPad — not an imitation, the real thing. The app emulates the calculator's hardware (its 75 MHz ARM processor, 512 KB of RAM, 2 MB of flash, the 131×80 display, the keyboard and the SD card slot) and runs HP's original firmware, so it behaves exactly as the calculator on your desk: every function, every mode, every flag, every quirk, key click included.
THE CALCULATOR
• An advanced computer algebra system: exact rational and arbitrary-precision integer arithmetic, symbolic simplification, factoring, polynomials, derivatives, integrals, limits, Taylor series, equation and system solving, linear algebra
• An advanced scientific calculator: complex numbers, vectors and matrices, statistics and regressions, unit conversions with dimensional analysis, base conversions (BIN/OCT/HEX) and bit operations, numeric solver, financial (TVM) calculations, date and time arithmetic
• Graphing: 2D function, polar, parametric, conic, slope field, differential equations, statistics and 3D wireframe/surface plots, with zoom, trace and analysis
• The Equation Library with over 300 equations of physics and engineering, with units
• RPN with the four-level or unlimited stack, or algebraic entry with the equation writer, at your choice
• Programmable in RPL (UserRPL and SysRPL): your programs and libraries run as on the real machine
THE APP
• Three faces: the black 50g, the blue 50g and the HP 49g+ — the 49g+ is the same machine, running the same firmware
• Firmware versions 2.15 (2009, with the 2 MB fix), 2.10 and 2.09 — switch between them, each keeps its own memory
• Your calculator's memory stays: close the app, come back later, it is exactly where you left it
• SD card: put files in the app's folder in Files and they appear on the calculator's card; what the calculator writes to the card lands in Files. Install libraries as on the real machine
• HP's manuals (User's Guide, Advanced User's Reference…) can be downloaded into the app and read next to the calculator; the app remembers your page
• Paste: type text from the clipboard onto the calculator
• Hardware keyboard support on iPad and iPhone
• The beeper, so BEEP and key clicks sound like the calculator
• Works fully offline, no account, no ads, no tracking
ABOUT THE FIRMWARE
The app contains no HP software. On first launch you pick a firmware version and it is downloaded from GitHub, where the app keeps an identical copy of the package published on hpcalc.org, the community archive that has hosted HP's own update packages for decades (each package checked against its known fingerprint); the image is then kept on your device.
HP, HP 48, HP 49g+ a
Latest updates
0.4.1
• iPhone and iPad: each key answers where you touch it, on its cap and the labels above it. The touch areas reached down over the next row's labels, so the top of a key could miss.
• The ROM list gives only the release years HP published.
• Save Program… and Load Program… (the menu; on the Mac, the File menu): a variable's program to a text file and back, in HP's transfer form (%%HP: T(3)A(R)F(.);), the calculator compiling it itself.
0.4.0
• Trois faces au choix : la 50g noire, la 50g bleue et la HP 49g+ (menu → Face sur iPhone et iPad, View ▸ Face sur le Mac). Votre choix est mémorisé.
• Le téléchargement des ROM vérifie chaque paquet d'après son empreinte connue et, si hpcalc.org ne répond pas, prend la copie identique sur une sauvegarde : l'installation du firmware de la calculatrice continue de fonctionner.
0.3.2
• Maintenance release, built with the latest tools.
Store changes
What RPN 50g changed on its store page: name, icon, screenshots, price, size, languages, requirements.
Description updated
Description updated
New iPad screenshots
