Comparison

IQ Test vs Vowel Thief

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

Head to head
About

IQ Test

Assess your intelligence with a comprehensive IQ test. Receive an instant score, detailed statistics on your strengths and weaknesses, and review your answers. Offers puzzles and exercises for brain training and test preparation.

Highlights
  • Full-length IQ exam
  • Instant IQ score on bell curve
  • Detailed category statistics
  • Review right/wrong answers
  • Puzzles with hints and solutions
  • Multiple language support
Features
Read full description

How smart are you really? Take a free, full-length IQ test, see your IQ score on the bell curve right away and find out where you stand compared to others. No sign-up needed. Developed with students of the University of Rostock and inspired by the WAIS-IV. WHAT YOU GET - A complete IQ exam with realistic tasks from many categories – free, with your result at the end - Your IQ score on a bell curve (normal distribution) – instantly see how you compare - Detailed statistics for every category: discover your strengths and weaknesses - Review your right and wrong answers after each category - Puzzles and exercises in three difficulty levels, with hints, solutions and explanations - Available in English, German, Spanish, French, Italian, Portuguese, Turkish and Dutch - Pro without ads – as a one-time purchase, so you don't need a subscription WHAT THE IQ TEST MEASURES Inspired by the WAIS-IV (Wechsler Adult Intelligence Scale), the test covers six areas: - Perceptual reasoning - Processing speed - Working memory - Verbal comprehension - Numerical reasoning - Logical thinking You solve tasks such as matrix reasoning, number sequences, cube folding, image memory, patterns, analogies, estimation, ordering numbers and letters, logic questions and more. WHAT IS AN IQ TEST? An IQ test shows how you perform compared to other people. Intelligence itself is not clearly defined – it is simply what an IQ test measures. That's why only results of the same test can be compared: an IQ above 100 means you solved the tasks better than average, below 100 means worse. So don't take your score too seriously – see it as an exciting comparison with others! BRAIN TRAINING AND TEST PREPARATION Preparing for an aptitude test, an assessment center or a psychological test? Use the puzzles and exercises to train your brain and sharpen your logical thinking, memory and math skills. QUICK BREAKS: IQ TEST CHALLENGE Looking for short brain teasers on the go? Try our second app IQ Test Challenge: over 5000 quick IQ tasks, and for every task you see how others solved it – plus daily challenges and modes like Sudden Death. In short: IQ Test is the full IQ exam, IQ Test Challenge is for a quick break. PRO: UNLOCK EVERYTHING The IQ Test app is free to download. Pro is optional and unlocks: - All IQ tests - All explanations and solutions - All exercises - Detailed statistics With Pro there are no ads. You can get Pro as a one-time purchase that stays unlocked forever. A subscription is also available if you prefer: it renews automatically unless cancelled at least 24 hours before the end of the current period and can be managed or cancelled in your App Store account settings. Terms of Use: https://iqtest-app.de/terms-and-conditions/ Privacy Policy: https://iqtest-app.de/privacy-policy/ License agreement (Apple standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Vowel Thief

Decode words by filling in missing vowels before time runs out. This fast-paced puzzle game tests your vocabulary and quick thinking with thousands of words and multiple game modes. Sharpen your mind and build streaks for bonus points.

Highlights
  • Decode words with missing vowels
  • Fast-paced gameplay
  • Thousands of curated words
  • Multiple difficulty levels
  • Blitz and Daily Challenge modes
  • Streak building for bonus points
  • Hint system
Read full description

The vowels have been stolen! Can you figure out the words before time runs out? VOWEL THIEF is a fast-paced word puzzle game that challenges your vocabulary and quick thinking. Each word appears with its vowels replaced by underscores — your job is to decode the word and type it correctly. HOW TO PLAY • See a word with missing vowels (like "B__T_F_L") • Figure out the original word (BEAUTIFUL) • Type it before time runs out • Build streaks for bonus points GAME MODES • Blitz Mode: Race against a 60-second timer. How many words can you solve? • Daily Challenge: A fresh set of words every day. Compare your score with friends! FEATURES • 8,000+ carefully curated words across 4 difficulty levels • Hint system when you're stuck • Track your streaks and high scores • Atmospheric visuals and sound • No ads. No internet required. From simple words to expert-level vocabulary, Vowel Thief tests your word knowledge like never before. Perfect for word game lovers, crossword enthusiasts, and anyone who wants to sharpen their mind. How high can you score?

Screenshots

IQ Test4 screens

Verdict

The call

The clearest difference is rating: Vowel Thief at 5.0 against IQ Test's 4.4. Vowel Thief also leads on in-app purchases (none vs 10). IQ Test's advantage is ratings volume (8K vs 1) and device support. On price 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. IQ Test sells 10 in-app purchases, starting at $3.99 per month. Vowel Thief asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Vowel Thief holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: IQ Test has 8K ratings behind it against 1, so its average is the more settled of the two.

Scorecard6 real differences · 4 level
IQ Test versus Vowel Thief: the parameters behind the verdict, then further details
ParameterIQ TestVowel Thief
PriceFreeFree
Rating4.4 (8K ratings)5.0 (1 ratings) — better
Positive reviews34.8% of reviews—
Number of ratings8K — better1
Update frequencyEvery 6 weeks—
AdsNo—
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — better—
Requires iOS15.0 — better17.6
Further details — not scored
Size66 MB175 MB
Age rating4+4+
DeveloperPaul StelzerEDUARDO URENO VALADEZ

Bugs and requests

IQ Test

Reported bugs

3 issues
  • Questions with no logical correct answer
  • Inability to see questions/content properly
  • Crashes and freezes during tests

Requested features

4 requests
  • Improved English language support
  • More detailed explanations for questions
  • Ability to review past performance
  • Pause/resume functionality

Vowel Thief

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

IQ Test

Subscriptions2
  • IQ Test Pro$3.991 Month
  • IQ Test Pro Year$19.991 Year
One-time8
  • Complete Statistics$0.99
  • Premium 3$3.99
  • Premium 1$3.99
Show 5 more
  • Explanations$4.99
  • Premium Plus Young people$5.99
  • Pro Forever$8.99
  • Pro Forever Super Sale$17.99
  • Pro Forever$29.99
None

Vowel Thief

No in-app purchases

Questions

Is IQ Test free?
IQ Test is free to download, with in-app purchases available.
Is Vowel Thief free?
Vowel Thief is free to download, with no in-app purchases.
Which has better reviews, IQ Test or Vowel Thief?
Vowel Thief is rated higher. IQ Test averages 4.4 out of 5 from 8K ratings, while Vowel Thief averages 5.0 from 1 ratings.

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