IQfez

Brain training & IQ puzzles

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

Train your brain daily with quick IQ puzzles: logic, spatial, memory and verbal. Take the Full IQ Test, climb the leagues and keep your streak alive with Fezzy! IQfez — Train Your Brain IQfez turns brain training into a daily habit you'll actually look forward to. Solve bite-sized puzzles across four brain dimensions, take a full IQ-style test, and compete with players around the world — all guided by Fezzy, your friendly brain-training buddy. WHY IQfez - Four brain dimensions in one app: Logical, Spatial, Memory and Verbal - Quick daily sessions that fit into any break - See your strengths at a glance on your personal Brain Radar - Available in 8 languages TRAIN FOUR BRAIN DIMENSIONS - Logical: patterns, matrices and cause-and-effect reasoning - Spatial: 3D rotation, perspective and space perception - Memory: short-term memory and attention challenges - Verbal: analogies, vocabulary and conceptual reasoning Plus Fezzy Says, a fast Simon-style memory game. TAKE THE FULL IQ TEST A timed, IQ-style test that gives you a single score and puts you on the global monthly leaderboard, with fresh questions every month. COMPETE AND STAY MOTIVATED - Weekly leagues with promotion and relegation - Monthly IQ leaderboard and a friends board - Daily streaks and goals to keep the habit going - A home-screen widget that shows your weekly streak at a glance MAKE IT YOURS Collect gems, unlock skins for Fezzy and personalize your experience. FEZZY PLUS (OPTIONAL) Upgrade to Fezzy Plus for an ad-free experience and unlimited play. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the period. Manage or cancel any time in your App Store account settings. Please note: IQfez is made for entertainment and self-improvement. It is not a clinical or medical assessment and its scores are not a diagnosis. Terms of Use (EULA): https://polar-diamond-447.notion.site/IQfez-Terms-of-Use-EULA-386b0f3139cc8053ab76f920dcd4b819 Privacy Policy: https://www.freeprivacypolicy.com/live/5e5213e0-1dc3-48b5-852c-6ba3abebda99 Download IQfez and start training your brain today!

Ratings & Reviews

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Welcome to IQfez 1.1.0! - New gem store: buy gem packs right in the app, with a limited-time bonus sale. - Sign in with Google or Apple: save your progress with a single tap (email/password sign-in has been retired). - Harder, far more varied verbal questions in all 8 languages: trickier analogies, odd-one-out, synonyms and antonyms. - Richer spatial "projection" puzzles: two new solids and two new question types. - Reworked weekly leagues: smaller, balanced leagues with fairer promotion and relegation. - Leaderboards now show each player's equipped Fezzy skin. - Swipe left and right through onboarding, plus refreshed streak visuals. - The Android home-screen widget now shows a real weekly-streak preview. Fixes and polish - Rewarded ads no longer deny your reward after a full watch. - Screenshots are now allowed on IQ result and practice summary screens (still blocked during tests). - No more repeated spatial "projection" questions in a single session. - Fezzy Says now correctly requires a life to play. - Various layout and account-deletion fixes. Thanks for playing — keep your streak alive!

Version v1.1.0

The developer, Denizhan YILDIZ, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Purchases
    • Contact Info
    • Identifiers
    • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • Denizhan YILDIZ
Size
  • 96.9 MB
Category
  • Puzzle
Compatibility
Requires iOS 16.4 or later.
  • iPhone
    Requires iOS 16.4 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English
Age Rating
13+
  • 13+
  • Learn More
  • Infrequent
    Contests

    Contains
    Advertising
    User-Generated Content
In-App Purchases
Yes
Copyright
  • © 2026 Denizhan YILDIZ
  • Privacy Policy

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