Comparison

Find Prime Num vs Millennium Problems

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

Head to head
About

Find Prime Num

Quickly determine if a number is prime and find one of its factors. This app also measures calculation time to help you benchmark your device's processing speed. Share your results and compare performance with others.

Highlights
  • Calculate prime numbers up to 64-bit integers
  • Measure processing time for device speed comparison
  • Find one factor of a non-prime number
  • Share calculation results
  • User-friendly interface
Features
Read full description

Do you want to find out if a number if a prime number? Are you constantly spending hours to calculate if a long number is prime? If the answer is yes for any of these questions, you should download "Find Prime Num" app. "Find Prime Num" allows you to find out if a number is a prime or not. It will also give you a factor of this number. In addition, it will tell you how long it takes for the app to calculate, which indicates how fast your device is. You can use this value to test your device's processing speed against other devices. "Find Prime Num" is an app for you to find out if your number is prime. It can be used on iPhone, iPod Touch and iPad. It is simple, easy to use, and very informative. You can share your results with others as well. Main Features ◉ Calculate prime number up to 64-bit integer ◉ Calculate the processing time, an indicator of the speed of the CPU of your device ◉ Calculate one factor of your number if it isn't a prime ◉ Share your results with others to see whose devices are faster ◉ User-friendly interface

About

Millennium Problems

Explore seven unsolved mathematical mysteries, each with a million-dollar prize. This app adapts content for all skill levels, from middle schoolers to doctoral researchers, with interactive 3D visualizations and built-in quizzes. Learn at your own pace, offline, with no ads or subscriptions.

Highlights
  • Explains seven major unsolved math problems
  • Content adapts to skill level (Grade 6 to Graduate)
  • Interactive 3D visualizations
  • Built-in quizzes with XP and badges
  • Offline functionality
  • Optional biometric lock
Features
Read full description

Can you solve a problem worth $1,000,000? The Clay Mathematics Institute has offered a million-dollar prize for each of seven unsolved mathematical problems — and nobody has claimed them yet. Millennium Problems brings these mysteries to life for everyone, from curious 11-year-olds to doctoral researchers. SEVEN LEGENDARY PROBLEMS • P vs NP — Is finding as hard as checking? • Riemann Hypothesis — Where do prime numbers hide? • Yang-Mills & Mass Gap — Why do particles have mass? • Navier-Stokes — Can we predict turbulent fluids? • Hodge Conjecture — What shapes are built from algebra? • Birch & Swinnerton-Dyer — How many solutions does an equation have? • Poincaré Conjecture — The shape of the universe (SOLVED!) EVERY SKILL LEVEL Choose your grade — from Grade 6 to Graduate — and the content adapts instantly. The same problem is explained with simple analogies for a middle schooler and rigorous proofs for a PhD student. INTERACTIVE 3D VISUALISATIONS Every problem comes with a real-time Three.js visualisation. Watch elliptic curves rotate, Riemann zeros appear on the critical line, and fluid particle fields swirl — all rendered natively on your device. BUILT-IN QUIZZES Test your understanding with 5 questions per problem per grade level. Earn XP, track your streak, and collect badges as you explore. WORKS OFFLINE No account. No subscription. No ads. Everything runs locally on your device. OPTIONAL BIOMETRIC LOCK Protect your progress with Face ID, Touch ID, or fingerprint — entirely optional. Whether you're a student looking for a challenge, a teacher seeking engaging material, or a mathematician revisiting the classics, Millennium Problems meets you where you are. Clay Mathematics Institute · $7,000,000 in unclaimed prizes · Since 2000

Screenshots

Find Prime Num4 screens
Millennium Problems4 screens

Verdict

The call

The clearest difference is iOS requirement: Find Prime Num at 12.0 against Millennium Problems's 15.0. On price, rating, ratings volume and update cadence 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Find Prime Num against 5.0 for Millennium Problems. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on September 29, 2026 and September 23, 2026 respectively.

Scorecard1 real difference · 9 level
Find Prime Num versus Millennium Problems: the parameters behind the verdict, then further details
ParameterFind Prime NumMillennium Problems
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Positive reviews50.0% of reviews—
Number of ratings11
Update frequencyEvery 4 daysEvery 4 days
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size8 MB9 MB
Age rating4+4+
DeveloperDuo Pisceses, Inc.Loic Fonkam

In-app purchases

None

Find Prime Num

No in-app purchases

None

Millennium Problems

No in-app purchases

Questions

Is Find Prime Num free?
Find Prime Num is free to download, with no in-app purchases.
Is Millennium Problems free?
Millennium Problems is free to download, with no in-app purchases.
Which has better reviews, Find Prime Num or Millennium Problems?
Find Prime Num and Millennium Problems are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do Find Prime Num or Millennium Problems have ads?
Neither Find Prime Num nor Millennium Problems shows ads.
Which is updated more often, Find Prime Num or Millennium Problems?
Find Prime Num ships an update every 4 days, and Millennium Problems every 4 days. Most recently, Find Prime Num was updated on September 29, 2026 and Millennium Problems on September 23, 2026.

Other comparisons