Comparison

RPN vs QODE

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

Head to head
About

RPN

Experience a faithful simulation of the groundbreaking HP-65 programmable calculator on your iPad. This app offers virtual program and data cards, a powerful card manager, and includes 170 original HP programs to get you started.

Highlights
  • Virtual program and data cards
  • Virtual paper tape printer
  • Database-driven card manager
  • Create, delete, label, and organize cards
  • Share via email, AirDrop, Dropbox, print
  • Paste and run existing HP-65 listings
  • Live display of stack and registers
  • Four operational modes including 'Super-65'
Features
Read full description

World's first pocket computer! Now running on your iPad. RPN-65 Pro is the first complete simulation of Hewlett-Packard's stunning HP-65 programmable calculator for iOS. Produced from 1974 to 1977 at an initial price of $795 (that's more close to $5,000 today!), the HP-65 was a breakthrough. Not only was it programmable, it also contained a motorized magnetic card reader - and still fit into Bill Hewlett's shirt pocket. Experience this revolutionary calculator on your iPad. With 170 original HP programs included with RPN-65 Pro, you can get started right away. "A work of art. Fantastic!" (MacBreak Weekly, episode 572) Features: • Virtual program and data cards • Virtual paper tape printer supports AirPrint • Powerful database-driven card manager • Create, delete, label, and organize a virtually unlimited number of cards • Sharing: e-mail, AirDrop, Dropbox, copy, paste, print • Paste existing HP-65 listings into RPN-65 and run them • "Live" display of stack, memory registers, program counter, flags • Reads data cards created by RPN-67 Pro and RPN-97 Pro • Supports external hardware keyboard Run RPN-65 Pro in any of 4 modes: 1 - Just like the original HP-65 2 - Same, but at high speed 3 - Includes user-interface improvements, like backstep key and jump to any program step 4 - "Super-65" with 999 program steps, 120 labels, 120 registers, nested subroutines, and much more For details, free program downloads, calculator handbook and much more, visit the RPN-65 website: cuveesoft.ch/rpn65

About

QODE

Enhance your keyboard experience with this app. Monitor battery life, quickly launch your favorite apps and websites with custom shortcuts, and manage multiple language layouts. Stay updated with the latest software and provide direct feedback to the development team.

Highlights
  • Battery life indicator
  • Quick-launch app shortcuts
  • Multiple language/layout options
  • Software update notifications
  • Direct customer feedback channel
Read full description

The first of its kind, the QODE App is the perfect companion to our award-winning keyboards. The QODE App acts as a concierge for your keyboard, offering: Battery life indicator Never guess when to charge your keyboard. The App keeps a constant eye on your battery, letting you know how much power you have left, and notifies you when it’s time to charge up. Quick-launch shortcuts for your favorite apps Forget swiping and searching for your apps, set up Quick Launch keys to access apps and websites using simple keystrokes on your keyboard. Your favorite destinations are only a keystroke away. Multiple keyboard language/layout options Much like you, our keyboards speak multiple languages. Cycle through different languages available on your keyboard, and see them laid out on screen. You can even print or save the layouts for reference while you work. Language Layout Support for: US English UK English Traditional Chinese Simplified Chinese French German Spanish Italian Swedish Danish Russian Turkish Korean Japanese Thai Software updates While you work, the App regularly checks for software updates to enhance your keyboard. It will instantly notify you of any new software and ask if, and when, you would like to install it. Customer feedback options The App connects you directly to the QODE team giving us feedback on your experiences. Whether it’s a suggestion to improve our keyboards, finding the answer to a question, or just to tell us how you like the App, we look forward to hearing from you! Compatible with the following QODE keyboards: • Ultimate Pro for iPad Air 2 (F5L176) • Ultimate Pro for iPad Air (F5L171)

Verdict

The call

The clearest difference is price: QODE at Free against RPN's $3.99. QODE also leads on ratings volume (24 vs 4) and iOS requirement (8.0 vs 12.0). RPN's advantage is rating (4.0 vs 3.5) and review sentiment (50% vs 14%). 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

QODE is free to download; RPN costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

RPN holds the better App Store score, 4.0 against 3.5. That said, the two scores are not equally well evidenced: QODE has 24 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 50% of RPN's written reviews are positive against 14% of QODE's.

UpkeepUpdate frequency

RPN ships an update every 3 months, QODE every 8 months. The most recent releases landed on October 20, 2026 and October 21, 2026 respectively.

Scorecard7 real differences · 3 level
RPN versus QODE: the parameters behind the verdict, then further details
ParameterRPNQODE
Price$3.99Free — better
Rating4.0 (4 ratings) — better3.5 (24 ratings)
Positive reviews50.0% of reviews — better13.9% of reviews
Number of ratings424 — better
Update frequencyEvery 3 months — betterEvery 8 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPadiPad
Requires iOS12.08.0 — better
Further details — not scored
Size86 MB24 MB
Age rating4+4+
DeveloperCuVee SoftwareBelkin International, Inc.

Customer experience

RPN

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

QODE

All ratings24 ratings
Positive54.2%
Neutral12.5%
Negative33.3%
Written reviews101 reviews
Positive13.9%
Neutral6.9%
Negative79.2%

Bugs and requests

RPN

Not enough reviews yet to summarise bugs or requests.

QODE

Reported bugs

14 issues
  • Firmware update fails on iOS 9.1 and above
  • App stuck on splash screen
  • Keyboard shortcuts only work within QODE app
  • Shortcuts require manual screen tap confirmation
  • App crashes when customizing keys
Show 9 more
  • Bluetooth connection drops every 10 minutes
  • Backspace key stops working
  • App doesn't recognize paired keyboard
  • Feedback email button non-functional
  • Language switching not working properly
  • App shows incorrect keyboard layout (AZERTY vs QWERTY)
  • Firmware update notification persists despite incompatibility
  • Accessibility lag when using zoom feature
  • Battery percentage indicator inaccurate

Requested features

10 requests
  • Update app for latest iOS versions
  • Shortcuts should work without screen confirmation tap
  • Support for all QODE keyboard models
  • Keyboard remapping functionality
  • Ability to disable Siri button
Show 5 more
  • Shortcuts for any app, not just recognized ones
  • Working feedback/support email system
  • Improved documentation for setup and features
  • Firmware update via computer as alternative
  • Battery indicator in status bar like other devices

In-app purchases

None

RPN

No in-app purchases

None

QODE

No in-app purchases

Questions

Is RPN free?
RPN costs $3.99, with no in-app purchases.
Is QODE free?
QODE is free to download, with no in-app purchases.
Which has better reviews, RPN or QODE?
RPN is rated higher. RPN averages 4.0 out of 5 from 4 ratings, while QODE averages 3.5 from 24 ratings.
Do RPN or QODE have ads?
Neither RPN nor QODE shows ads.
Which is updated more often, RPN or QODE?
RPN ships an update every 3 months, and QODE every 8 months. Most recently, RPN was updated on October 20, 2026 and QODE on October 21, 2026.

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