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About IQfez

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!

What’s new

Version 1.2.0 · Updated August 29, 2026

Two new languages: Italian and Malay — IQfez now speaks 10. THREE WAYS TO PLAY Category quizzes now let you choose your countdown. Timed is the classic run for full XP. Extra Time gives you 50% more time on every question and earns 75% XP. Timeless removes the countdown entirely and earns half XP. Switch anytime from Settings → Gameplay. QUESTION DIFFICULTY ON SCREEN Every category question now shows its level — Easy, Medium, Hard or Expert — as a colour-coded badge next to the question counter. BROWSE THE OTHER LEAGUES The tier ladder above the weekly standings is now tappable — open Bronze, Silver, Gold, Platinum or Diamond to see who's leading that league this week. HEARTS COME BACK FASTER A lost heart now refills every 30 minutes instead of every 2 hours, so a full set of five returns in about two and a half hours rather than ten. A SMALLER, FASTER APP Roughly 11 MB trimmed from the download, and artwork now loads during the splash screen so each screen opens ready. HARDER VERBAL QUESTIONS ACTUALLY GET HARDER Difficulty now changes how tempting the wrong answers are, not just the label. Every language now has as much verbal material as English. ALSO FIXED • Your guest progress survives signing in with Google or Apple. • Weekly league promotions now always apply. • "Rate the App" in Settings opens the store listing. • Long questions fit the screen instead of scrolling. • Onboarding no longer skips ahead or drops out.

Play today's Threadline puzzle

Draw one line through every cell, visiting the numbers in order. A free daily puzzle from Fiplay, same board for everyone. It plays right here, no download.

More Threadline and other daily puzzles on Fiplay →

App privacy

The developer, Denizhan YILDIZ, reported these privacy practices to Apple.

Data Linked to You

The following data, which may be collected and linked to your identity, may be used for the following purposes:

  • Identifiers: Device ID, User ID
  • Purchases: Purchase History
  • Contact Info: Email Address, Name
  • Usage Data: Product Interaction
  • Diagnostics: Crash Data, Other Diagnostic Data

Used for: Third-Party Advertising, App Functionality

Data Not Linked to You

The following data, which may be collected but is not linked to your identity, may be used for the following purposes:

  • Usage Data: Product Interaction

Used for: Analytics

Alternatives to IQfez

Looking for apps like IQfez? Here are 6 similar apps on the App Store. The highest rated is IQ Test: Fun Intelligence Quiz (4.6/5), and all 6 are free to download.

IQfez vs. alternatives
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