218+ iOS apps & games curated and reviewed
The best knockio apps and games on iPhone average 4.5★ across 218+ titles — we've ranked them by what real users actually keep on their phones. Updated July 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.7★ (3.1K) | No | Yes | Jul 2026 |
| 2 |  | Free | 4.3★ (41) | Yes | No | Jul 2026 |
| 3 |  | Free | 4.6★ (74K) | Yes | Yes | Jul 2026 |
| 4 |  | Free | 4.8★ (2.6K) | Yes | Yes | Jul 2026 |
| 5 |  | Free | 3.2★ (73) | Yes | No | Jul 2026 |
| 6 |  | Free | 4.2★ (1.7K) | No | Yes | Jul 2026 |
| 7 |  | Free | — | Yes | No | Jun 2026 |
| 8 |  | $1.99 | 4.5★ (3.2K) | No | Yes | Jul 2026 |
Blast colorful blocks and topple clever structures in this satisfying physics-driven puzzle game. Fire matching blocks to create explosive chain reactions and clear every piece to complete hundreds of handcrafted levels. Enjoy addictive, rewarding gameplay that's easy to learn but challenging to master.
Engage in fast-paced, chaotic penguin battles across icy arenas. Push opponents out to be the last one standing in this physics-based party game with simple controls and colorful characters.
Effortlessly remove backgrounds from photos with AI-powered tools. Create collages, ID photos, and edit images with multi-layer synthesis and a variety of filters and effects. Easily erase unwanted objects and refine details for professional-looking results.
Engage in a humorous boxing match against political figures to reach the White House. Customize your fighter, unlock power-ups, and complete bonus missions in this arcade-style game.
Become the hunter in this 3D game where you must knock out all opponents by throwing balls within a time and ball limit. Navigate free-roaming maps, collect projectiles, and aim carefully to win each level. Outmaneuver your foes before they escape to achieve victory.
Experience a deep career mode in this retro boxing game. Train, spar, and climb the ranks to become a champion, managing your fighter's condition and facing new challengers. You can also manage a gym, sign promising talent, and become a renowned promoter by booking fights and running tournaments.
Easily cut out subjects from photos, even complex edges like hair. Change backgrounds, apply over 100 filters and effects, and blend images with 23 modes. Create transparent PNGs or colorful JPGs.
Engage in exciting boxing matches by timing your attacks precisely and defending against powerful punches. Challenge opponents one by one to become the ultimate fighter.
Step into the ring for an epic boxing simulation. Master punches, create combos, and challenge opponents worldwide in this free-to-play fighting game. Customize your boxer and battle unique bosses for glory.
Engage in classic arcade-style boxing matches online. Build your fighter's career, customize their look, and compete in various game modes. Unlock new skills and upgrades using in-game currency.
Experience realistic boxing with stunning graphics and knockout gameplay. Compete in career modes, real-time multiplayer, and weekly tournaments. Customize your boxer and train them to become a champion.
Engage in a chaotic action game with realistic ragdoll physics. Battle other players in a party arena, aiming to be the last one standing. Experience hilarious falls and unique combat with customizable controls.
Compete in an online multiplayer arena where the goal is to be the last player standing. Jump across platforms that disappear beneath you, outlasting 20 opponents in this chaotic endurance race. The last survivor wins.
Engage in a physics-based combat game where you discover joint actions to knock out ragdoll opponents. Earn your martial arts rank by mastering moves and progressing through levels. This game offers a free experience with no in-app purchases.
Engage in blocky brawls as a character made of blocks. Utilize simple drag controls for diverse attacks and movements to defeat a variety of enemies. Grow stronger by taking down foes and aim to become the ultimate fighter.
Engage in intense martial arts combat with realistic graphics and sound. Choose from various players, unlock new powers, and upgrade your fighters. Compete in career or championship modes to become a wrestling master.
Engage in chaotic physics-based battles with up to 20 players. Punch, push, and use silly gadgets to outlast opponents in shrinking arenas. Customize your character and master various game modes to become the ultimate champion.
Engage in physics-based gameplay where you throw and explode objects to achieve high scores. Compete with friends and enjoy relaxing challenges in new settings. Regular updates bring new locations and special effects.
Train boxers in a gym simulation game where you guide them through practice and bouts. Tap to instruct your boxer during fights, aiming for world champion status within 15 laps. Over 200 unique boxers can appear, with retired boxers returning as opponents.