NumMemorize vs PiSeeker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NumMemorize
This app helps users memorize digits of mathematical constants like pi and e through quizzes. It also allows users to input and memorize their own custom numbers, and offers voice input for convenience.
- Memorize digits of pi, e, and other constants
- Quiz yourself on number recall
- Input and memorize custom numbers
- Voice input for number entry
- Practice for math and science students
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NumMemorize quizzes you on the digits of well-known constants (such as π, e, √2), and will help you memorize additional digits. This app is a must-have for math and science students, and those wishing to impress teachers, friends and family, or fellow nerds! What party won't be livened up with a 20 digit recall of ϕ (the Golden ratio)? Imagine walking up to the blackboard and writing out √2 to 30, 40, or more digits! Say you're being hustled at a game of pool. Easy, bet your opponent, double or nothing, that you can recount pi to 30, no, even better, 50 digits. Let those other kids fill their heads with useless sports stats. These numbers are timeless and universal! Who knows who you'll impress - armed with this knowledge, you'll probably marry a smarter and better looking spouse, have a better job and live happily ever after! NEW! Now enter your own numbers! You can enter any numbers you'd like: drivers license, card numbers, phone numbers and your own favorite constants and values. Go ahead, enter 99! NEW! You can now just speak your number instead of tapping it in! NumMemorize makes it easy to memorize any number! (99! is 933262154439441526816992388562667004907159682643816214685929638952175999932299156089414639761565182862536979208272237582511852109168640000000000000000000000)
PiSeeker
Challenge your memory and math skills with this application focused on the digits of Pi. It offers four distinct modes: voice recognition recitation, typing practice, a digit-hunting puzzle, and a simple viewing mode. Designed for math enthusiasts and students, it prioritizes a clean interface and user privacy.
- Voice recognition Pi recitation
- Typing Pi digits practice
- Range-based Pi digit puzzle
- Pi digit viewing mode
- Progress tracking
- Accessibility features
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PiSeeker is the ultimate Pi challenge! Test your memory and math skills in four exciting modes: - **Recite Mode**: Speak the digits of Pi using voice recognition. Start from anywhere (less than 20k) and go forward from there. How many can you get right? Track your best score! - **Type Mode**: Type the digits of Pi using the buttons on the screen. Start from anywhere (less than 20k) and go forward from there. - **Seek Mode**: Hunt for Pi digits in a range-based puzzle game. Quick, fun, and addictive! - **Show Mode**: Just look at Pi, for fun! Perfect for math enthusiasts, students, and puzzle lovers. With a clean design, accessibility features, and no data sharing, PiSeeker is your go-to Pi adventure. Download now and start mastering Pi!
Screenshots
Verdict
The clearest difference is update cadence: PiSeeker at fortnightly against NumMemorize's every 4 months. NumMemorize's advantage is iOS requirement (9.0 vs 18.2). On price, rating, ratings volume and ads 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. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for NumMemorize against 5.0 for PiSeeker. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
NumMemorize ships an update every 4 months, PiSeeker fortnightly. The most recent releases landed on September 28, 2026 and October 11, 2026 respectively.
| Parameter | NumMemorize | PiSeeker |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 4 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 3 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Mahboud Zabetian | Adam Thomas Hayes |
Customer experience
NumMemorize
PiSeeker
In-app purchases
NumMemorize
No in-app purchases
PiSeeker
No in-app purchases
