Sand Loop vs NumPrime
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Sand Loop
Engage in a relaxing puzzle game where you guide buckets to collect colored sand. Watch as the sand flows with realistic physics to reveal beautiful artwork. Enjoy a calming escape with intuitive controls and hundreds of handcrafted levels.
- Sand collection puzzle gameplay
- Realistic sand physics
- Hundreds of handcrafted levels
- Intuitive tap controls
- Visually satisfying sand flow
- Hidden artwork reveals
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Sand Loop is a relaxing sand sort puzzle: a finished sand artwork is sitting in front of you, and your job is to collect every grain of it. Guide the buckets along the conveyor, pour each color into the one that matches, and let real sand physics do the rest. Take the whole picture apart, color by color, until the board is clear. Relax and unwind after a long day, or take one level at a time on the go. How to play: - Tap to release a bucket and send it down the conveyor - Each color of sand gets poured into the bucket that matches - Work through the artwork until every grain is collected - Place your buckets strategically to solve the puzzle - Clear the board and enjoy the payoff Easy to pick up, genuinely tricky by level 100! Why you'll love it: The sweet spot between a brain teaser and a stress-relief game. Simple taps, beautiful results, steady progress, sand physics and ASMR-style sounds that make every level worth watching. Game features: - A sand sort puzzle built on a loop: timing matters, not just matching - Real sand physics: every grain pours, piles and settles - Hundreds of handcrafted levels, with more in every update - Fresh obstacles and twists that keep changing how you solve - A different sand artwork to take apart in every level - Soft ASMR-style sand sounds and a calm, colorful art style - Free to play, with no countdown timer on any level - Limited-time events to take part in when you feel competitive It never settles into one trick. Just as you get comfortable, a level changes the rules on you - a new obstacle, a new way the sand behaves, a new reason the order you pour in suddenly matters. There is a fresh twist every couple of weeks, so the game you are playing in a month is not the one you downloaded. Hundreds of levels in, it is still finding ways to surprise you. Take a moment for yourself. Let the sand flow. Download Sand Loop for free and start sorting.
NumPrime
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NumPrime blends mathematical thinking with block-puzzle gameplay for an engaging, brain-teasing experience. Master the art of prime numbers while enjoying a strategic game that challenges your mind. HOW TO PLAY 1) Merge blocks with equal numbers and pop them to earn points. 2) Guide the falling block with the left and right controls. When needed, use the add (+) and subtract (−) buttons to change the number on the block you land on and create matches. 3) Falling blocks contain random numbers from 1 to 47. Blocks with prime numbers appear blue; the others appear red. 4) Merging and popping prime-number blocks earns extra points — and the special prime number 2 rewards you even more. 5) Once you decide where to drop a block, tap the down arrow to drop it instantly instead of waiting. KEY FEATURES - Easy to learn, hard to master — clean and intuitive gameplay - Math-puzzle mechanics focused on prime numbers - Global leaderboard to compete with players worldwide - Increasing difficulty as the game speeds up - Fully game-focused, ad-free experience - Multilingual support (English, Turkish) PERFECT FOR - Math lovers who enjoy number-based puzzles - Players looking for educational fun - Anyone seeking a relaxing yet mentally stimulating game - Students who want to sharpen their number-recognition skills Experience the satisfaction of mathematical discovery through strategic puzzle-solving. NumPrime offers endless replayability as you chase higher scores and climb the global leaderboard. Download NumPrime now and explore the fascinating world of prime numbers!
Screenshots
Verdict
The clearest difference is in-app purchases: NumPrime at none against Sand Loop's 18. NumPrime also leads on ads (none vs shown). Sand Loop's advantage is update cadence (fortnightly vs every 6 weeks) and chart position (#99 vs unranked). On price, device support and iOS requirement 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. Sand Loop sells 16 one-off in-app purchases. NumPrime asks for nothing beyond the download.
Sand Loop ships an update fortnightly, NumPrime every 6 weeks. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.
| Parameter | Sand Loop | NumPrime |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (22K ratings) — better | — |
| Positive reviews | 17.0% of reviews | — |
| Number of ratings | 22K — better | — |
| Update frequency | Fortnightly — better | Every 6 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Best chart rank | #99 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 393 MB | 34 MB |
| Age rating | +4 | 4+ |
| Developer | Voodoo | Samed KIZILHAN |
In-app purchases
Sand Loop
- Coin Pack 1$1.99
- Happy Hour$3.99
- Special Offer$4.99
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- Sand Loop Offer$5.99
- Coin Pack 2$7.99
- No Ads$7.99
- Sand Loop Offer$9.99
- Sandy Essentials$9.99
- Sandy Pass$9.99
- No Ads Bundle2 variants$12.99
- Sand Loop Offer$14.99
- Coin Pack 3$14.99
- Sandy Gift$19.99
- Sandy Treasures$29.99
- Coin Pack 5$54.99
- Coin Pack 6$99.99
NumPrime
No in-app purchases









