Scan2PDF Mobile vs Memorize Pi Digits
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Scan2PDF Mobile
Easily convert paper documents into PDFs using your device's camera. Organize scans into folders, sync with iCloud for backup, and protect sensitive files with password encryption. Share your documents via email, printing, or saving to other locations.
- Multi-page scanning
- Automatic page recognition
- Folder organization
- iCloud sync and backup
- PDF encryption
- Append pages to existing PDFs
- Share PDFs
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Scan2PDF Mobile is the simplest, fastest document scanner and uses your device camera to scan paper documents and convert them into PDFs. Features include: - Simple scanning: scan multiple pages in one single session. Scan2PDF Mobile will automatically recognise pages and scan them automatically! - Folder storage: organise your PDFs into folders with a simple folder system. This means you can store all your scanned PDFs in their logical places - eg bills, passports, letters etc. - iCloud sync: your PDFs can be automatically synced with your iCloud drive meaning you can access them elsewhere as well as providing a secure automated backup. - PDF encryption: protect your PDFs by adding a password when you create them. - Append: you can append pages to an existing PDF, useful for keeping all monthly bills in a single PDF by appending pages as each bill comes in. - Share: share your PDFs using the standard iOS share facility - you can print, email or save elsewhere. Scan2PDF Mobile is fully functional and free with ads or you can remove the ads by subscribing. View our terms and conditions at https://scan2pdf.com/eula and our privacy policy at https://scan2pdf.com/privacy
Memorize Pi Digits
This app helps you memorize digits of Pi, offering up to one million digits for practice. It features a dark mode interface and a network competition mode for up to five players. Ideal for educational purposes and memory improvement.
- Memorize up to 1 million Pi digits
- Dark mode UI design
- Network competition mode (up to 5 players)
- Educational game for memory improvement
- Track progress day by day
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Pi is constant, it is represented by the Greek letter π. The numerical value of π is 3.1415926....... Pi is infinite series irrational number. From wikipedia: Piphilology is the practice of memorizing large numbers of digits of π, and world-records are kept by the Guinness World Records. The record for memorizing digits of π, certified by Guinness World Records, is 70,000 digits, recited in India by Rajveer Meena in 9 hours and 27 minutes on 21 March 2015. This app is a tool to help you memorize pi digits, we offer first 1 million (1000000) Pi digit. It is the only tools your need to learn Pi. If you want to learn Pi ( π ), it should be the best Pi trainer software. You can learn Pi from 101 to Guinness World Records holder. This game is a very good educational game, learn it day by day. Some days later you will memory a lot of Pi Digit. Many users report that this app can help them to remember pi number, they can't believe that they can remember few hundred digits. But it is real. Every year March 14th is Pi day, to Celebrate Pi Day you can try to remember the first 100 digits. Using our app, you can do it in few hours. The UI design of this game is dark mode, it is the most modern app UI design. You can see the new coming OS also add dark mode theme. Add network competition mode, if all the devices are connected same local area network. You can create a network competition up to 5 people play on same time. FB : https://www.facebook.com/Pi-314-342764079883765/
Screenshots
Verdict
The clearest difference is rating: Scan2PDF Mobile at 5.0 against Memorize Pi Digits's 4.4. Scan2PDF Mobile also leads on update cadence (weekly vs every 5 months) and iOS requirement (12.4 vs 16.6). Memorize Pi Digits's advantage is review sentiment (74% vs 48%) and ratings volume (152 vs 4). On price, ads, in-app purchases and monetization model 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
Both are free to download. Scan2PDF Mobile sells 2 in-app purchases, starting at $0.99 per month and Memorize Pi Digits sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Scan2PDF Mobile holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Memorize Pi Digits has 152 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 48% of Scan2PDF Mobile's written reviews are positive against 74% of Memorize Pi Digits's, so the app with the better star average is not the one people write more warmly about.
Scan2PDF Mobile ships an update weekly, Memorize Pi Digits every 5 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.
| Parameter | Scan2PDF Mobile | Memorize Pi Digits |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | 4.4 (152 ratings) |
| Positive reviews | 48.0% of reviews | 74.4% of reviews — better |
| Number of ratings | 4 | 152 — better |
| Update frequency | Weekly — better | Every 5 months |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.4 — better | 16.6 |
| Further details — not scored | ||
| Size | 24 MB | 103 MB |
| Age rating | 4+ | 4+ |
| Developer | Burrotech | Oscar Tsang |
Customer experience
Scan2PDF Mobile
Memorize Pi Digits
In-app purchases
Scan2PDF Mobile
- Monthly subscription7 Days trial$0.991 Month
- Annual subscription7 Days trial$9.991 Year
Memorize Pi Digits
- Remove AD$1.99
Questions
Is Scan2PDF Mobile free?
Is Memorize Pi Digits free?
Which has better reviews, Scan2PDF Mobile or Memorize Pi Digits?
Do Scan2PDF Mobile or Memorize Pi Digits have ads?
Which is updated more often, Scan2PDF Mobile or Memorize Pi Digits?
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