Comparison

Sharp Eye Challenge vs Knotle

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Sharp Eye Challenge

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Sharpen your eyes and find the differences! Relax with a beautiful puzzle game that challenges your observation skills. In each level, you’ll see two similar images. Your mission is simple: spot all the differences before time runs out! Sounds easy? Look closer — some differences are harder to find than you think. Perfect for quick breaks or long relaxing sessions, this game is designed for players who enjoy casual brain training and visual puzzles. Plenty of Beautiful Levels Explore a wide collection of carefully designed images full of hidden differences. Challenge Your Observation Skills Train your brain and improve your focus while enjoying fun puzzles. Hint System Stuck on a tricky difference? Use hints to help you continue the level. Daily Rewards Play every day and collect rewards to help you progress faster. Relaxing Gameplay No complicated rules — just tap the differences and enjoy the game. Play Anywhere Great for short breaks, commuting, or relaxing before bed. Why You'll Love This Game • Simple and addictive gameplay • Improves attention to detail • Suitable for all ages • Beautiful images and smooth experience

About

Knotle

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Knotle is a calm daily loop puzzle. Every day, everyone gets the same board. Rotate the glowing tiles until every path joins into a single closed loop and when it clicks shut, the whole loop lights up. Easy to learn in seconds, quietly satisfying to master. WHY YOU'LL LOVE IT - One puzzle a day, a small ritual, not a time sink. - Chase the best possible solve to earn a Perfect. - Keep a streak, and share your result spoiler-free. - Unlimited Practice whenever you want more. - A beautiful, calm design, no clutter, no noise. BUILT RIGHT - Completely offline. No account, no sign-up. - No ads. No tracking. Your data never leaves your device. - Full Dark Mode, Dynamic Type, and VoiceOver support. - A home-screen widget for your streak and today's puzzle. KNOTLE+ (optional, one-time purchase) Replay every past Daily you missed, unlock advanced stats, and 9 extra themes. Yours forever. No subscription, no ads.

Screenshots

Sharp Eye Challenge4 screens
Knotle4 screens

Verdict

The call

The clearest difference is in-app purchases: Sharp Eye Challenge at none against Knotle's 1. Sharp Eye Challenge also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Knotle sells 1 one-off in-app purchase. Sharp Eye Challenge asks for nothing beyond the download.

Scorecard3 real differences · 2 level
Sharp Eye Challenge versus Knotle: the parameters behind the verdict, then further details
ParameterSharp Eye ChallengeKnotle
PriceFreeFree
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better17.0
Further details — not scored
Size100 MB1 MB
Age rating4+4+
DeveloperThai Tran HongRaja Erupaka

In-app purchases

None

Sharp Eye Challenge

No in-app purchases

1 purchases

Knotle

One-time1
  • Knotle+$1.99

Questions

Is Sharp Eye Challenge free?
Sharp Eye Challenge is free to download, with no in-app purchases.
Is Knotle free?
Knotle is free to download, with in-app purchases available.
Do Sharp Eye Challenge or Knotle have ads?
Neither Sharp Eye Challenge nor Knotle shows ads.

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