Number Boom! vs PrimeXTime
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Number Boom!
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"Number Boom" is the best way to train your math skill! Calculate a value of expression before bomb will blow up! Features: - five difficulty levels. - great exercises for brains. - endless mode.
PrimeXTime
Engage your mind with a unique number-based puzzle game. Start with a random number and strategically divide by single-digit primes. Bump the number by multiplying by 10 and adding a digit to reach 1 and win.
- Number division by primes
- Strategic bumping mechanic
- Goal to reduce number to 1
- Brain exercise gameplay
- Simple, intuitive interface
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Kill some time and give your brain a little exercise at the same time with this simple game. You start with a random number and then start dividing by single-digit primes (2, 3, 5 or 7). When you can't do any more divisions you 'bump' the number -- multiplying by 10 and adding any single digit. You win the game by reducing the original number to 1.
Screenshots
Verdict
The clearest difference is price: PrimeXTime at Free against Number Boom!'s $2.99. Number Boom!'s advantage is iOS requirement (10.0 vs 17.6). On update cadence, ads, in-app purchases and device support 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
PrimeXTime is free to download; Number Boom! costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Number Boom! ships an update every 5 months, PrimeXTime every 4 months. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.
| Parameter | Number Boom! | PrimeXTime |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 5 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 10.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 14 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Pavel Kremliakov | Rick Hutchinson |
In-app purchases
Number Boom!
No in-app purchases
PrimeXTime
No in-app purchases
