Comparison

Mersenne Primes vs ShweNarSin

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

Head to head
About

Mersenne Primes

Explore and view the digits of all known Mersenne prime numbers. Witness the generation process for extremely large primes, page by page, and locate specific digits by their sequence number.

Highlights
  • View all digits of known Mersenne Primes
  • Witness prime number generation process
  • Page-by-page digit exploration
  • Locate specific digits by sequence number
  • Generates primes using mobile CPU
Features
Read full description

Prime numbers are fundamentally important in mathematics and they are also very beautiful numbers. The largest known prime number we know now is 2^77232917-1 and it is a Mersenne Prime (a prime number of the form Mn = 2^n − 1 for some integer n which is also a prime number). The current largest Mersenne Prime number M77232917 (found in 2017 by GIMPS - Great Internet Mersenne Prime Search) has 23,249,425 digits. There is no website that can show you all the digits in a webpage because it is too huge. This app will generate and show you all digits of all known Mersenne Primes. You can also have close look of every digit page by page. The digits will be generated by your mobile phone's CPU and saved to your storage card. You will witness the whole process of the generation for the big ones (i.e. M77232917 , M74207281, M57885161, M43112609, M42643801, M37156667, ...), because it might need one day or two to print the digits all. You can also locate a digit by its sequence number. e.g. the 23249268th digit of M77232917 is 8.

About

ShweNarSin

Access a vast library of over 3,000 copyrighted audiobooks and podcasts across various genres. Enjoy high-quality recordings, offline listening, and stream content on multiple devices. Discover bestsellers and free titles for an immersive audio experience.

Highlights
  • Over 3,000 audiobooks and podcasts
  • High-quality narration
  • Offline listening
  • Cross-device streaming
  • Free audiobook options
  • Sound effects
Features
Read full description

There are many ways to enjoy Shwe Nar Sin Audio Books. Whether you're on a road trip, long commute, working out, or simply doing chores around the house, audiobooks are the perfect way to enjoy. Audiobooks are also perfect for anyone who is vision impaired. Download or Stream over 3,000++ amazing copyrighted audiobooks & podcasts with many different categories on the go! Start listening to bestselling titles in fiction and non-fiction in seconds. Features of Shwe Nar Sin - Subscribe & Listen to Audiobooks - High-Quality Audio Books recorded by many famous/experienced narrators - Different forms of Audiobooks and Podcasts with sound effects engineered by our Audio Engineers - Can stream on website and mobile or tablet - Can enjoy many free audiobooks - Offline listening: download books and listen the audiobooks offline Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Mersenne Primes4 screens
ShweNarSin4 screens

Verdict

The call

The clearest difference is review sentiment: Mersenne Primes at 100% against ShweNarSin's 50%. Mersenne Primes also leads on rating (5.0 vs 4.0) and update cadence (weekly vs every 3 months). ShweNarSin's advantage is ratings volume (6 vs 1). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Mersenne Primes sells 1 one-off in-app purchase and ShweNarSin sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Mersenne Primes holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: ShweNarSin has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Mersenne Primes's written reviews are positive against 50% of ShweNarSin's.

UpkeepUpdate frequency

Mersenne Primes ships an update weekly, ShweNarSin every 3 months. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

Scorecard5 real differences · 5 level
Mersenne Primes versus ShweNarSin: the parameters behind the verdict, then further details
ParameterMersenne PrimesShweNarSin
PriceFreeFree
Rating5.0 (1 ratings) — better4.0 (6 ratings)
Positive reviews100.0% of reviews — better50.0% of reviews
Number of ratings16 — better
Update frequencyWeekly — betterEvery 3 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better15
Further details — not scored
Size60 MB54 MB
Age rating4+4+
Developer华 魏Wun Zinn

Customer experience

Mersenne Primes

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

ShweNarSin

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

1 purchases

Mersenne Primes

One-time1
  • One Support$0.99
1 purchases

ShweNarSin

Subscriptions1
  • Shwe Nar Sin Premium2 variants$0.991 Month

Questions

Is Mersenne Primes free?
Mersenne Primes is free to download, with in-app purchases available.
Is ShweNarSin free?
ShweNarSin is free to download, with in-app purchases available.
Which has better reviews, Mersenne Primes or ShweNarSin?
Mersenne Primes is rated higher. Mersenne Primes averages 5.0 out of 5 from 1 ratings, while ShweNarSin averages 4.0 from 6 ratings.
Do Mersenne Primes or ShweNarSin have ads?
Neither Mersenne Primes nor ShweNarSin shows ads.
Which is updated more often, Mersenne Primes or ShweNarSin?
Mersenne Primes ships an update weekly, and ShweNarSin every 3 months. Most recently, Mersenne Primes was updated on November 2, 2026 and ShweNarSin on November 7, 2026.

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