Unit Eater vs Thrive Sleep
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Unit Eater
This utility app functions as a powerful calculator that handles unit conversions and calculations. It supports a vast array of predefined units and allows users to define their own, making it ideal for scientific and academic tasks. Features include a calculation history, customizable results, and dark mode.
- Unit conversion and calculation
- Custom unit definition
- Extensive unit library
- Calculation history
- Customizable result format
- Dark mode
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Unique calculator that not only converts units, but can also perform calculations with them. Perfect for school, university, work, or personal use! For math, physics, chemistry, biology, engineering, or any other natural sciences! - Standard calculator functions usable with or without units - Target unit freely definable - Define your own units if you need them - History of recent calculations - Quick transfer of parts or entire calculations from history - ANS function to dynamically use the last result - Customizable result format - Quick search - Quick access to important functions like square or cube - Undo and redo of last steps - Dark mode Boost your productivity, focus on the essentials, and leave conversion errors in the past! Supports many units, prefixes, and constants: * Prefixes: kilo, mega, giga, tera, centi, milli, micro, nano, โฆ * Constants: mass of proton, neutron, electron, Avogadro's constant, electric field constant, gas constant, Planck's constant, โฆ * Angles: radian, degree, degree-minute, degree-second, gradian, turn, steradian, โฆ * Length: meter, mile, inch, foot, yard, nautical mile, chain, furlong, cable length, rod, โฆ * Area: square meter, hectare, acre, are, square kilometer, square inch, square foot, square yard, โฆ * Volume: liter, cubic meter, fluid ounce, gallon, gill, pint, quart, barrel, tablespoon, teaspoon, โฆ * Mass: gram, ton, ounce, pound, carat, grain, โฆ * Time: second, minute, hour, day, year, โฆ * Speed: meter per second, kilometer per hour, miles per hour, knot, speed of light, โฆ * Acceleration: gravitational acceleration, meter per second squared, โฆ * Energy: joule, kilocalorie, erg, watt-hour, electronvolt, โฆ * Power: watt, horsepower, โฆ * Force: Newton, pond, kilopond, tf, ozf, lbf, โฆ * Torque: Newton meter, ozfin, ozfft, lbf*in, โฆ * Frequency: Hertz, revolutions per minute, โฆ * Pressure: pascal, bar, atm, at, Torr, mmHg, osi, ose, psi, psf, โฆ * Viscosity: Poise, Stokes, โฆ * Density: gram per cubic centimeter, kg per cubic meter, โฆ * Radiation: Becquerel, Curie, Rutherford, Roentgen, Gray, Sievert, rem, โฆ * Light: candela, lumen, lux * Electricity: volt, ampere, ohm, coulomb, elementary charge, farad, siemens, โฆ * Magnetism: Weber, Tesla, Henry, โฆ Is your desired unit not listed? You can define any additional units! Privacy Policy: https://www.iubenda.com/privacy-policy/22446614 Terms and Conditions: https://www.iubenda.com/terms-and-conditions/22446614
Thrive Sleep
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Control your smart bed through the mobile phone App!
Screenshots
Verdict
The clearest difference is in-app purchases: Thrive Sleep at none against Unit Eater's 2. Thrive Sleep also leads on iOS requirement (13.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Unit Eater sells 2 in-app purchases, starting at $0.99 per month. Thrive Sleep asks for nothing beyond the download.
Unit Eater ships an update fortnightly, Thrive Sleep every 3 weeks. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.
| Parameter | Unit Eater | Thrive Sleep |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | โ |
| Update frequency | Fortnightly โ better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | No โ better |
| Monetization | Free with in-app purchases | โ |
| Devices | iPhone, iPad, Mac โ better | iPhone, iPod |
| Requires iOS | 17.0 | 13.0 โ better |
| Further details โ not scored | ||
| Size | 47 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Tom Leon Schmidt | Qingdao Richmat Intelligence Technology Inc. |
In-app purchases
Unit Eater
- Premium - Monthly$0.991 Month
- Premium - Pay once$3.99
Thrive Sleep
No in-app purchases
Questions
Is Unit Eater free?
Is Thrive Sleep free?
Do Unit Eater or Thrive Sleep have ads?
Which is updated more often, Unit Eater or Thrive Sleep?
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