digiID vs RPN
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
digiID
Securely store and manage all your official identification cards on your phone. Digitize your driver's license, insurance cards, and more, with privacy controls to blur sensitive information. Verification features link to social networks for enhanced trust.
- Secure digital identification holder
- Manage official ID cards
- Privacy control to blur sensitive information
- Virtual wallet for licenses and IDs
- Verification via social network linking
- Digitize insurance, membership, and other cards
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Your cards and documents, ready when you need them. Keep personal copies of insurance cards, memberships, travel documents and other important records together in a private wallet on your iPhone. SCAN AND FIND Capture a document, import photos or enter details manually. On-device text recognition helps you search saved scans and details. Access your saved wallet offline. PROTECT YOUR WALLET Open your wallet with iPhone authentication. Document images and wallet information are encrypted on your device, and the app locks when it enters the background. No online wallet account is required. SHARE THE DETAILS YOU CHOOSE Select individual fields, review the outgoing text and share through an app of your choice. Unselected fields, document images, notes and recognized text are not automatically attached. Recipients can keep exported copies; those copies cannot be revoked. KEEP TRACK OF EXPIRY DATES Add expiry dates, see what needs attention and choose optional reminders. Notifications use general messages without document names or numbers. PREPARE FOR A NEW IPHONE Create an encrypted recovery backup and keep its separate recovery key safe. Both are required to restore documents. Wallet files are excluded from automatic device backup, so create a recovery backup before replacing your iPhone, deleting the app or removing its passcode. A SIMPLE PURCHASE This version is a paid download with no in-app purchases or subscription. Your local download price appears on the App Store. PERSONAL COPIES digiID stores personal document copies. It does not issue or verify credentials, provide identity-theft insurance, process card payments, or replace original identification required by authorities or businesses. Learn more: https://digiid.com/wallet/ Support: https://digiid.com/support/
RPN
This app simulates a vintage programmable calculator from the mid-70s, offering enhanced features beyond the original. It allows users to run existing programs, manage virtual cards, and utilize advanced functions for scientific and engineering tasks.
- Virtual program and data cards
- Virtual paper tape printer
- Database-driven card manager
- Create, label, and organize unlimited cards
- Share cards via email, AirDrop, Dropbox
- Editable program listings
- Enhanced features for more program steps and registers
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A dream calculator of the mid-70's, priced at $2,500 in today's dollars (2025), right on your iPhone! RPN-67 SD is the iPhone version of RPN-67 Pro, the first complete simulation of Hewlett-Packard's legendary HP-67 programmable calculator for the iPad. Produced from 1976 to 1982, the HP-67 was a huge success among scientists, engineers and other professionals. Thousands of programs were written for it. Now you can run them right on your iPhone, with more ease and faster than ever before. To get you started quickly, run the built-in program cards, or choose from the large number of programs available as free downloads from our website. What users said: “This version permits you to use your virtual HP-67 just as you could the original – hand-held and highly portable. Congratulations to the developer for providing such an excellent and aesthetically pleasing software product." "This was my first scientific calculator in real life. It is great to have the simulator on my iPhone. The special features added make it into a HP-41 or 42S! It comes packaged with some great samples. Am having great fun with it." Features: • Virtual program and data cards • Virtual paper tape printer supports all HP-97 printer modes • Powerful database-driven card manager • Create, label, and organize a virtually unlimited number of cards • Use iTunes to effortlessly save entire card collections on your Mac/PC • Sharing: e-mail, AirDrop, Dropbox, copy, paste, print • Editable listing shows labels, targets of branches, and errors • E-mail listings and let the recipient paste the text right into RPN-67 • Print listings on any AirPrint-compatible printer • Program listing on paper tape shows subroutine nesting • Edit paper tape • E-mail paper tape, or print it via AirPrint • Cut/copy/paste displayed value or program steps • Paste existing HP-67 listings into RPN-67 SD and run them • "Live" display of stack, memory registers, flags • Show and edit program instructions • Fast: 1.5 seconds vs. 6 minutes (program HM-05, determinant of 5x5 matrix) • Low-battery indicator (iPhone charge 10% or less) • Optional high-contrast mode for working in bright ambient light • Compatible with RPN-67 Pro and RPN-97 Pro While RPN-67 SD works like a real HP-67, changing a simple setting will turn the app into a super-charged HP-67: • Up to 999 program steps, 8 subroutine levels, 6 additional flags (F4...F9) • 100 additional registers • 100 additional labels • 100 built-in constants and conversions • More than 150 additional powerful operations and functions Plus: • 15 commands to print and manipulate any range of extended registers • Unrestricted register arithmetic • Exchange x with any register • Complex numbers, hyperbolic functions • Non-volatile memory - stack, registers, program, flags, paper tape • Status indicators for prefix keys (f, g, h, STO, RCL, etc.) • Display showing thousands separators (optional) • Text output on simulated paper tape in 10 colors, even simple plotting • Stack-of-stack: push/pop the entire stack on internal stack (4 levels) • Single-step into subroutines (optional) • Powerful debugging aids, including 10 breakpoints with counters • Keycodes translated to command names while entering or single-stepping a program • Change the duration of the PAUSE command • Compress constants in programs into a single step (reversible) RPN-67 SD comes with more than 130 programs pre-installed, including HP Standard Pac, HP Business Decisions Pac, HP Math Pac I, HP Stat Pac I, and HP Surveying Pac I. The simulator has been verified to correctly run the examples given in HP Civil Engineering Pac I, HP Clinical Lab Pac, HP E.E. Pac I, HP Games Pac I, HP M.E. Pac I, HP Navigation Pac I, as well as large number of programs published in Users' Library Solutions. For more information and free program downloads visit the RPN-67 website: cuveesoft.ch/rpn67
Screenshots
Verdict
The clearest difference is rating: RPN at 4.6 against digiID's 3.9. RPN also leads on review sentiment (93% vs 83%) and iOS requirement (12.0 vs 17.0). digiID's advantage is monetization model (free vs paid) and update cadence (every 6 weeks vs every 3 months). On price, ratings volume, ads and in-app purchases 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
digiID costs $3.99 and RPN $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
RPN holds the better App Store score, 4.6 against 3.9. Both are backed by a comparable volume of ratings — 39 and 17 respectively. Written reviews point the same way: 83% of digiID's written reviews are positive against 93% of RPN's.
digiID ships an update every 6 weeks, RPN every 3 months. The most recent releases landed on October 23, 2026 and October 29, 2026 respectively.
| Parameter | digiID | RPN |
|---|---|---|
| Price | $3.99 | $3.99 |
| Rating | 3.9 (39 ratings) | 4.6 (17 ratings) — better |
| Positive reviews | 83.3% of reviews | 92.9% of reviews — better |
| Number of ratings | 39 — better | 17 |
| Update frequency | Every 6 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 17.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 63 MB |
| Age rating | 4+ | 4+ |
| Developer | DIGIID LLC | CuVee Software |
Customer experience
digiID
RPN
Bugs and requests
digiID
Reported bugs
6 issues- App no longer accepts new cards
- Blank screen when adding new cards
- Blank photo when naming snapshots anything other than 'drivers license'
- Auto image capture difficult to work
- Images not good, small print hard to read
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- digiID watermark imprints across address
Requested features
11 requests- Add NFC support
- Allow importing from other files/free version
- Option to download IDs from other files
- Ability to delete incorrect IDs
- Ability to change PIN length
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- Customizable order of presentation for cards
- Ability to sort IDs within the app
- Group IDs by category
- Add to Apple Wallet
- Allow sending images as email attachments
- Allow importing pictures from Photos library
RPN
Not enough reviews yet to summarise bugs or requests.
In-app purchases
digiID
No in-app purchases
RPN
No in-app purchases









