Beautiful Numbers vs Collatz Explorer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Beautiful Numbers
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Ever stared at a number line and wondered what numbers really are? That’s what happened when I tried to explain real numbers to my daughter. They weren’t just “points on a line” - they were invisible ideas that didn’t feel real at all. So I built a way to make them visible. With sliders, colors, and movement, she could see numbers stretch, merge, and grow. Suddenly, math wasn’t about memorising - it was about discovering. That small project grew into Beautiful Numbers - an interactive world where numbers come alive. See math like never before: - Add, subtract, multiply, divide — and watch numbers dance in real time. - Play with intervals: drag their ends, see them merge, overlap, and split. - Explore powers and roots: what happens when you flip or combine them? - Understand absolute value: visualise distance and tackle equations like |x−4| = 6. - Master percents and growth: from simple increases to compound interest that grows like magic. Whether you’re a student, teacher, or curious explorer, Beautiful Numbers helps you see what math really means - and maybe even fall in love with it. Download Beautiful Numbers and explore the world of real numbers - beautifully.
Collatz Explorer
Explore mathematical sequences with this app. It calculates the standard Collatz sequence for any number you enter and can also display sequences from an alternative 3x-1 function.
- Calculate Collatz sequences
- Calculate 3x-1 function sequences
- Input any number
- Visualize sequences
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A fun app that is capable of showing you any collatz sequence for a number that you input. Also capable of showing you any sequence from an alternate 3x-1 function for any number you input.
Screenshots
Verdict
Beautiful Numbers and Collatz Explorer are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
Beautiful Numbers ships an update every 6 weeks, Collatz Explorer monthly. The most recent releases landed on September 29, 2026 and September 27, 2026 respectively.
| Parameter | Beautiful Numbers | Collatz Explorer |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.6 (7 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 7 — better |
| Update frequency | Every 6 weeks | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.4 — better | 18.6 |
| Further details — not scored | ||
| Size | 8 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Tomasz Rygula | Berk Sucu |
In-app purchases
Beautiful Numbers
No in-app purchases
Collatz Explorer
No in-app purchases
Questions
Is Beautiful Numbers free?
Is Collatz Explorer free?
Do Beautiful Numbers or Collatz Explorer have ads?
Which is updated more often, Beautiful Numbers or Collatz Explorer?
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