Comparison

Unit Converter Expert vs Curiosity

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

Head to head
About

Unit Converter Expert

This app offers a comprehensive unit conversion tool with five main categories: Basic, Engineering, Computer/IT, Special, and Ancient/Historical. It features an intuitive interface, instant results, and the ability to mark favorite conversions for quick access.

Highlights
  • Wide range of unit conversions
  • Five main categories
  • Intuitive user interface
  • Instant and clear results
  • Mark favorite conversions
  • Supports all devices
Features
Read full description

Unit conversion expert is a smart App, which delivers a wide range of easy conversion of units and measurements. The Application is compatible with all the devices and consists of five main categories of units and measurements to select. The Application features a unique option to mark favorites and keep for on-the-go instant conversion whenever the user wishes. The Application is designed scientifically to cater to varied needs from a layman to a professional for their daily needs. The five broad categories of unit-measurements are 1. Basic – The Basic category meant for common usage involve simple conversions like mass and weight, distance and length, capacity, area, speed, temperature, etc. 2. Engineering – The Engineering category is specially designed for a higher level of mathematical and statistical usage. This involves conversions like time, acceleration, density, energy, pressure, etc. 3. Computer/ IT - The Computer category involves conversions of measurements for computer storage, data transfer, etc. 4. Special – The Special category includes a whole lot of units and measurements, which are residual but equally important for use. These include fuel economy, cooking, food Price, weight to volume, fractions and percent, numerals, currency, etc. 5. Ancient & Historical/Ancient Measures/Historical Measures – This particular category is an ode to the historians and those interested in the past. It includes measures like historical weight, length, volume, and area. Each of the main categories includes numerous sub-categories, loaded with a massive range of conversion probabilities covering all the units discovered to date. The application comes with a hassle-free and intuitive UI with clearly sorted out categories. It gives instant and clear results along with an efficient display rate. Switching the screens is easier than ever with the Application.

About

Curiosity

Access book-level knowledge in short, engaging multimedia snippets. Learn about diverse topics instantly, anytime, anywhere, with personalized content tailored to your evolving interests. It's a modern approach to expanding your horizons.

Highlights
  • Instant knowledge snippets
  • Multimedia learning experience
  • Personalized learning journeys
  • Snackable content format
  • Diverse range of topics
  • Seamless user experience
Features
Read full description

In today's fast-paced world, accessibility to information has transformed radically. Movies have shifted from cinemas to the comfort of our homes via streaming platforms, and social media has replaced traditional magazines and newspapers with instant, snappy content. But what about books? Enter "Curiosity: Microlearning Books" - an innovative app designed to make book-like knowledge more accessible than ever before. Imagine combining the depth of books with the dynamic, engaging format of TikTok. That's Curiosity for you! It's not just an app; it's a revolution in the way we consume knowledge. Gone are the days of ordering expensive books, waiting for their delivery, and letting them gather dust on the shelf with scores of other unread books. Curiosity liberates you from these constraints, offering a wealth of knowledge at your fingertips. Main Features: Instant Knowledge, Anytime, Anywhere: Curiosity generates book-level knowledge in easily digestible snippets. Want to learn about quantum physics, Renaissance art, or modern psychology? Curiosity delivers it instantly in a format that takes no more than 2 minutes to consume. Multimedia Learning Experience: Understanding that books can be daunting with their text-heavy content, Curiosity infuses learning with audio and visual aids. This multimodal approach caters to all learning styles, making the process more engaging and effective. Personalized Learning Journeys: Your interests today might not be the same tomorrow. Curiosity understands this and adapts to your evolving curiosity. With its personalized content generation, you're always one tap away from learning something new and exciting. Snackable Content: Who said learning can't be fun and quick? Curiosity breaks down complex topics into bite-sized pieces, perfect for those short breaks or moments of idle time. It's like scrolling through a feed of knowledge! Diverse Range of Topics: Whether you're a science enthusiast, a history buff, or a literature lover, Curiosity has something for everyone. Its extensive library covers a wide array of subjects, offering a comprehensive learning experience. Seamless User Experience: With its user-friendly interface, finding and exploring content on Curiosity is a breeze. The app is designed to be intuitive, making your journey of discovery smooth and enjoyable. Why Curiosity? For the Modern Learner: In a world where time is precious, Curiosity ensures that learning doesn't take a backseat. It's perfect for those who love to learn but can't commit to long hours of reading. Flexible and Convenient: Learn on the go, whether you're commuting, taking a break, or just need a quick dose of knowledge. Expand Your Horizons: With Curiosity, every day is an opportunity to learn something new and fascinating. Curiosity is not just an app; it's a gateway to endless learning possibilities. It's where knowledge meets convenience, and learning becomes a daily, enjoyable habit. Download Curiosity: Microlearning Books today and start feeding your curiosity! Discover our Terms of Use and Privacy Policy for more information: Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.iubenda.com/privacy-policy/85444675

Screenshots

Unit Converter Expert4 screens
Curiosity3 screens

Verdict

The call

The clearest difference is rating: Curiosity at 4.8 against Unit Converter Expert's 4.3. Curiosity also leads on review sentiment (80% vs 50%) and ratings volume (172 vs 3). Unit Converter Expert's advantage is monetization model (free vs free with in-app purchases) and iOS requirement (9.0 vs 17.0). On price, update cadence, ads and in-app purchases 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. Unit Converter Expert sells 1 one-off in-app purchase and Curiosity sells 9 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Curiosity holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: Curiosity has 172 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 50% of Unit Converter Expert's written reviews are positive against 80% of Curiosity's.

UpkeepUpdate frequency

Unit Converter Expert ships an update every 3 weeks, Curiosity every 2 weeks. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

Scorecard5 real differences · 5 level
Unit Converter Expert versus Curiosity: the parameters behind the verdict, then further details
ParameterUnit Converter ExpertCuriosity
PriceFreeFree
Rating4.3 (3 ratings)4.8 (172 ratings) — better
Positive reviews50.0% of reviews80.0% of reviews — better
Number of ratings3172 — better
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPod — betteriPhone
Requires iOS9.0 — better17.0
Further details — not scored
Size21 MB63 MB
Age rating4+12+
DeveloperMehta Group LtdRishabh Maini

Customer experience

Unit Converter Expert

All ratings4 ratings
Positive75.0%
Neutral25.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

Curiosity

All ratings172 ratings
Positive96.5%
Neutral2.3%
Negative1.2%
Written reviews20 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

In-app purchases

1 purchases

Unit Converter Expert

One-time1
  • Unit Converter Pro$0.99
9 purchases

Curiosity

Subscriptions9
  • Curiosity Monthly3 Days trial$7.991 Month
  • Curiosity Premium7 Days trial$7.991 Month
  • Curiosity Weekly Premium3 Days trial$7.997 Days
Show 6 more
  • Curiosity Monthly$8.991 Month
  • Curiosity Weekly$9.997 Days
  • Curiosity Yearly Exit Offer 1$34.991 Year
  • Curiosity Yearly$49.991 Year
  • Curiosity Yearly Sub (7 Day Free)7 Days trial$69.991 Year
  • Curiosity Yearly Premium3 Days trial$69.991 Year

Questions

Is Unit Converter Expert free?
Unit Converter Expert is free to download, with in-app purchases available.
Is Curiosity free?
Curiosity is free to download, with in-app purchases available.
Which has better reviews, Unit Converter Expert or Curiosity?
Curiosity is rated higher. Unit Converter Expert averages 4.3 out of 5 from 3 ratings, while Curiosity averages 4.8 from 172 ratings.
Do Unit Converter Expert or Curiosity have ads?
Neither Unit Converter Expert nor Curiosity shows ads.
Which is updated more often, Unit Converter Expert or Curiosity?
Unit Converter Expert ships an update every 3 weeks, and Curiosity every 2 weeks. Most recently, Unit Converter Expert was updated on October 24, 2026 and Curiosity on October 20, 2026.

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