RPN vs Thetis Tools
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RPN
Experience a faithful simulation of the groundbreaking HP-65 programmable calculator on your iPhone. This app offers virtual program and data cards, a paper tape printer, and a robust card manager. Explore four distinct operating modes, including an enhanced "Super-65" option.
- Virtual program and data cards
- Virtual paper tape printer with AirPrint
- Database-driven card manager
- Create, delete, and organize unlimited cards
- Sharing via email, AirDrop, Dropbox, iTunes
- Paste and run existing HP-65 listings
- Four distinct operating modes
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World's first pocket computer! Now running on your iPhone. RPN-65 SD is the iPhone version of RPN-65 Pro, 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 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 iPhone. With over 180 original HP programs included with the app, you can get started right away. "A work of art. Fantastic!" (MacBreak Weekly, episode 572) Features: • Virtual program and data cards • Virtual 2000-line 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, iTunes, copy, paste, print • Paste existing HP-65 listings into RPN-65 and run them • "Live" display of stack, memory registers, program counter, flags • Reads program and data cards created by RPN-65 Pro • Reads data cards created by RPN-67 Pro/SD and RPN-97 Pro Run RPN-65 SD in any of 4 modes: 1 - Just like the original HP-65 2 - Like the original HP-65, but at much higher speed 3 - With many user-interface improvements, like backstep key or 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
Thetis Tools
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Applicazione Ufficiale per la piattaforma di asta live Thetis Tramite questa applicazione i clienti thetis possono trasmettere in diretta live il video della propria sessione d'asta all'applicativo asta live Thetis
Screenshots
Verdict
The clearest difference is price: Thetis Tools at Free against RPN's $2.99. RPN's advantage is iOS requirement (12.0 vs 14.0). On update cadence, 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
Thetis Tools is free to download; RPN costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
RPN ships an update every 4 months, Thetis Tools every 7 months. The most recent releases landed on October 31, 2026 and October 26, 2026 respectively.
| Parameter | RPN | Thetis Tools |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 5.0 (8 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 4 months — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 62 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | CuVee Software | Thetis srl |
In-app purchases
RPN
No in-app purchases
Thetis Tools
No in-app purchases
