PrimeXTime vs Number Playtime
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
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.
Number Playtime
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Number Playtime is a cozy collection of five number games - 105 levels and a friendly bear to keep you company. ◆ FIVE GAMES IN ONE - Guess the Number: find the secret number with the bear's help. Guess too high or too low and it will react. The fewer tries, the better! - Make the Sum: pick numbers from the grid so they add up exactly to the target. A gentle workout for mental math. - 2048: the classic merge puzzle. Swipe the board, chain combos, and chase a higher score. - Tap Match: numbers scroll across the screen; tap the matching number below to clear them all. A quick test of eyes and reflexes. - Five in a Row: move pieces to line up five of the same color in any direction and clear them. Bigger lines, bigger scores. ◆ EASY TO PICK UP - 105 handcrafted levels that rise gently in difficulty. - 15 handy items, including hints, bombs, slow motion and undo - help is there when you're stuck. - A local leaderboard keeps the top 10 for every game, so you can race your own best. - No sign-up, no login. Portrait and one-hand friendly - perfect for a commute, a break, or bedtime. - Plays in English and Chinese, following your device language. Soft pastel colors, rounded cards, and cheerful sounds turn a few minutes of play into a small moment of calm. Start playing, and let numbers become fun!
Screenshots
Verdict
The clearest difference is ads: PrimeXTime at none against Number Playtime's shown. PrimeXTime also leads on update cadence (every 4 months vs every 11 months). Number Playtime's advantage is iOS requirement (15.0 vs 17.6). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
PrimeXTime ships an update every 4 months, Number Playtime every 11 months. The most recent releases landed on October 13, 2026 and October 6, 2026 respectively.
| Parameter | PrimeXTime | Number Playtime |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 4 months — better | Every 11 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Rick Hutchinson | 北京宠光科技有限公司 |
In-app purchases
PrimeXTime
No in-app purchases
Number Playtime
No in-app purchases









