217+ 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 217+ 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 | 4.7★ (4.2K) | Yes | No | Jul 2026 |
| 5 |  | Free | 4.8★ (735) | Yes | Yes | Jul 2026 |
| 6 |  | Free | 4.7★ (220) | Yes | Yes | Jul 2026 |
| 7 |  | Free | 4.7★ (14K) | Yes | Yes | Jul 2026 |
| 8 |  | Free | 4.7★ (3.2K) | 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.
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.
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.
A relaxing puzzle game where you sort sparkling gems by color to reveal beautiful pixel art masterpieces. Engage your creativity and logic with satisfying gameplay and a vast art gallery.
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.
Engage your mind with a beautiful gem sorting puzzle game. Sort and learn about hundreds of precious stones, including diamonds, rubies, and sapphires, across a vast array of levels. This game offers stunning visuals and a unique challenge for those who enjoy color and logic puzzles.
Engage in fast-paced, head-to-head match 3 puzzle battles for real cash prizes. Utilize power-ups to achieve high scores within a 90-second time limit and compete against players globally for leaderboard dominance and rewards.
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.
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.
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.
Engage in a captivating gem sorting puzzle game. Match, sort, and learn about hundreds of precious stones. Discover their history, origin, and symbolism while organizing your gem tray and collecting special gems to unlock new game modes.
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.
Embark on a magical adventure in this challenging match-3 puzzle game. Swap and crush jewels through fantastical islands, rescue a fairy, and unlock new worlds. Enjoy thousands of levels, daily events, and exciting rewards.
Embark on an island expedition to find lost treasure by matching colorful gems. Help baby animals, beat monsters, and solve puzzles across over 1600 levels. This engaging game offers an excellent experience, playable anytime, anywhere, even without Wi-Fi.
Relax and de-stress with this diamond art coloring book app. Match numbered gems to create dazzling pictures and build your own coloring collection. Enjoy family-friendly content and share your creations.
This app offers a relaxing number coloring experience with diamond art designs. Users can choose from various images and bring them to life by filling in numbered sections with sparkling diamonds. It's designed for stress relief and improving hand-eye coordination.
Engage in a vibrant match-3 puzzle adventure with unique challenges and surprising twists. Combine sparkling gems to earn rewards, create powerful boosts, and collect exclusive emojis. Compete with friends on leaderboards and unlock celestial rewards as you progress.