225+ iOS apps & games curated and reviewed
Rob Master 3D is the household name in diamond tester game, but it's far from the only option. We track 225+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.7★ (147K) | Yes | Yes | Jul 2026 |
| 2 |  | Free | 5.0★ (2) | Yes | Yes | May 2026 |
| 3 |  | Free | 4.7★ (1.8K) | Yes | No | Jul 2026 |
| 4 |  | Free | 4.8★ (545) | Yes | Yes | Jul 2026 |
| 5 |  | Free | 4.7★ (4.2K) | Yes | No | Jul 2026 |
| 6 |  | Free | 4.2★ (875) | No | No | Jul 2026 |
| 7 |  | Free | 4.6★ (54K) | Yes | Yes | Jul 2026 |
| 8 |  | Free | 4.2★ (210) | Yes | Yes | Jul 2026 |
Become a criminal mastermind and train to be the best thief. Sneak into secured locations using various tools, avoiding guards, cameras, and dogs. Steal jewels and diamonds to earn money and upgrade your skills.
Test your reflexes with this one-tap game. Master precise timing to navigate a rising ring around a zigzag line. Compete online or play solo to unlock cosmetic upgrades.
Engage in thrilling multiplayer matching games where you can compete for real cash prizes. Enjoy quick, one-minute matches perfect for on-the-go gaming and get rewarded for your skills.
Experience the calming art of diamond painting digitally. This app offers a realistic and creative coloring experience with interactive diamond placement and a vast library of artwork. Unlock more content through gameplay or a subscription for exclusive bonuses and ad-free enjoyment.
This app offers a collection of classic block puzzle and sliding block games with jewel-themed elements. It provides multiple game modes, including endless play, daily challenges, and special events, designed to relieve stress and exercise the brain. Enjoy over 1200 levels of engaging puzzle-solving without time limits.
Engage in a futuristic hacking simulation where you control cybernetic organisms to steal top-secret information. Test your intelligence and analytical skills to hack Wi-Fi passwords and climb the ranks to become the ultimate hacker.
Engage in a relaxing coloring experience by filling images with diamond pixels. Create unique art from a variety of happy canvases featuring unicorns, cakes, and more. Enjoy the satisfying process of bringing beautiful designs to life with sparkling diamond colors.
Engage in a creative experience by collecting colorful diamonds to craft beautiful and shiny pictures. This app offers a fun way to express your artistic side and create dazzling visual art.
Embark on an epic match-3 journey through ancient Egypt, rebuilding a city and uncovering its mysteries. Solve challenging puzzles, collect jewels, and experience a gripping story with unique gameplay and engaging events.
Experience a top-rated casino with hundreds of free-to-play slot and scratcher games. Enjoy innovative titles, daily lotteries for coin wins, and an exclusive VIP room for high rollers. Spin the daily wheel and claim bonuses for more winning opportunities.
Lead a crowd of stickman warriors through a city, collecting more to build your army. Navigate obstacles, choose the best gates, and battle opponents to reach the end and defeat the final boss. Upgrade your levels and collect coins in this thrilling 3D running game.
Experience the thrill of Las Vegas with a free-to-play casino slots app. Enjoy a wide variety of slot machines, table games, and bonus features. Compete for massive jackpots and build your virtual fortune.
This offline game allows you to create art by filling diamonds onto a canvas according to numbers. Choose from a variety of pictures and painting styles to complete your own masterpieces. It's a relaxing way to improve your drawing skills and have fun.
Engage in a digital diamond art coloring adventure. Use virtual gems and diamonds to create sparkling artwork on your device. Enjoy this fun and accessible art experience anytime, anywhere.
Experience the thrill of Las Vegas with over 250 classic slot machine games. Enjoy free spins, big bonuses, and huge jackpots in this social casino game. Play authentic slot experiences without spending real money.
Experience the thrill of classic Vegas slot machines with over 100 unique games. Enjoy big jackpots, free spins, and social tournaments, playable offline. New machines are added weekly for endless entertainment.
Embark on a colorful jewel quest in this ultimate match-3 puzzle adventure. Solve hundreds of addictive levels, discover new worlds, and unlock special boosters. Play offline anytime, anywhere, and become a legend in this gem-swapping saga.
Restore a struggling Roman settlement to its former glory by playing thousands of match-3 levels and engaging in city building. Follow a suspenseful storyline, meet charismatic characters, and rebuild impressive structures.
This app uses your device's camera to scan and analyze diamonds, providing detailed reports on authenticity, quality, and comparisons to lookalike stones. It helps buyers, collectors, and resellers evaluate gemstones with visual evidence and confidence scores.
Experience a unique puzzle adventure blending classic solitaire strategy with exciting match 3 gameplay. Swap and match dazzling gems to clear obstacles, complete quests, and collect rewards across thousands of levels in a magical kingdom. Enjoy stunning visuals and satisfying chain reactions.