Comparison

Conversion Calculator Units vs Unit Converter and Rates

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

Head to head
About

Conversion Calculator Units

This app offers a simple and powerful way to convert between over 140 units across 12 categories. Easily switch between units, customize your experience with themes, and share your results.

Highlights
  • Converts over 140 units
  • Supports 12 conversion categories
  • Customizable themes
  • Drag and set unit positions
  • Add units to favorites
  • Share converted units via email
Features
Read full description

* Handy Conversion Calculator App For 12 Categories & 140+ Units * Simple, Powerful & Conversion Calculator app designed for iPhone and iPad! Just tap and convert any units with its clean interface and user-friendly navigation. Simple swipe actions will allow you to convert quickly and change conversion options easily for additional convenience. Download the fastest & easiest to use converter app today! Conversions from one unit to another unit no longer have to be confusing, simply use Best Unit Converter today. * Features: - Ability To Change Themes - Drag & Set Position Of Units - Add Units To Favorites Section - Restore Category Listing - Enable/Disable Units - Set Decimal Digit Count - Share Converted Units by Email ** Conversion (12 Categories & 140+ Units): - Area  - Length - Energy - Volume - Weight - Power  - Speed  - Time - Number - Temperature  - Data Storage - Fuel Consumption Conversion Calculator is a beautifully designed universal app, designed for both iPhone & iPad. Get the best easy to use metric and units converter for length, number, power, speed, temperature, time, weight, area, energy, and other popular measurement converters tool. Download free. ************************************************************* * Download Conversion Calculator Today! * * Be Sure To Checkout Other Popular Utilities & Games From RV AppStudios! * *************************************************************

About

Unit Converter and Rates

This app offers fast and simple unit conversions across 15 categories, including currency with live updates. Customize your experience with themes, favorite units, and adjustable decimal precision. It's designed for ease of use on iPhone and iPad.

Highlights
  • 15 conversion categories
  • Live currency updates
  • Customizable themes
  • Favorite units section
  • Adjustable decimal precision
  • Drag and set unit positions
Features
Read full description

Convert anything, in two taps. Unit Converter turns any measurement into any other — 138 units across 14 categories — and converts 162 world currencies at live rates. Pick a category, type a number, read the answer. No sign-up, no account, nothing to configure. EVERY MEASUREMENT YOU ACTUALLY USE • Length, Weight, Volume, Area, Speed, Temperature • Pressure, Power, Density, Time, Data • Fuel Mileage, including the ones most converters get wrong: km/L, L/100 km, MPG in both US and UK gallons • Gas Flow and Liquid Flow LIVE CURRENCY RATES 162 currencies, refreshed from a live feed, with the update time shown right under the title so you always know how fresh your rate is. Dollars to euros, pounds to yen, dirhams to rupees — cross-rates go through the base currency, so any pair works. WORKS WITHOUT A CONNECTION Every unit conversion runs on your device. On a plane, in a basement, or abroad with data switched off, length, weight, volume and the rest keep working. Currency rates need a connection to refresh; the last rates fetched stay available until they do. BUILT FOR ONE THUMB • A large, uncluttered keypad • Swipe through units without opening a menu • Switch direction with one tap • Tap the result to copy it IN YOUR LANGUAGE English, Arabic, German, Spanish, French, Hebrew, Indonesian, Italian, Japanese, Portuguese (Brazil), Russian, Turkish and Simplified Chinese — with full right-to-left layout in Arabic and Hebrew, not just translated text. FREE TO USE Unit Converter is free and supported by ads. An optional subscription removes them. Privacy policy https://sites.google.com/view/mobtech-studio/privacy-policy Terms and conditions https://sites.google.com/view/mobtech-studio/terms

Screenshots

Conversion Calculator Units4 screens
Unit Converter and Rates4 screens

Verdict

The call

The clearest difference is review sentiment: Conversion Calculator Units at 82% against Unit Converter and Rates's 0%. Conversion Calculator Units also leads on rating (4.7 vs 4.1) and ratings volume (5K vs 75). 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. Conversion Calculator Units sells 1 one-off in-app purchase and Unit Converter and Rates sells 1 in-app purchase, starting at $2.99 per year. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Conversion Calculator Units holds the better App Store score, 4.7 against 4.1. That said, the two scores are not equally well evidenced: Conversion Calculator Units has 5K ratings behind it against 75, so its average is the more settled of the two. Written reviews point the same way: 82% of Conversion Calculator Units's written reviews are positive against 0% of Unit Converter and Rates's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 3, 2026 and October 29, 2026 respectively.

Scorecard4 real differences · 6 level
Conversion Calculator Units versus Unit Converter and Rates: the parameters behind the verdict, then further details
ParameterConversion Calculator UnitsUnit Converter and Rates
PriceFreeFree
Rating4.7 (5K ratings) — better4.1 (75 ratings)
Positive reviews82.1% of reviews — better0.0% of reviews
Number of ratings5K — better75
Update frequencyEvery 2 monthsEvery 2 months
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size41 MB28 MB
Age rating4+4+
DeveloperRV AppStudios LLCUsman Perwaiz

Customer experience

Conversion Calculator Units

All ratings4,970 ratings
Positive95.7%
Neutral2.5%
Negative1.8%
Written reviews117 reviews
Positive82.1%
Neutral5.1%
Negative12.8%

Unit Converter and Rates

All ratings75 ratings
Positive76.0%
Neutral4.0%
Negative20.0%
Written reviews3 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

Conversion Calculator Units

Reported bugs

2 issues
  • Ads not removed after purchase
  • Incorrect unit conversions

Requested features

4 requests
  • Add pressure conversion units
  • Include a basic calculator function
  • Implement multi-language support
  • Allow customization of unit order

Unit Converter and Rates

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Conversion Calculator Units

One-time1
  • Remove Ads$1.99
1 purchases

Unit Converter and Rates

Subscriptions1
  • Unlock Full Version$2.991 Year

Questions

Is Conversion Calculator Units free?
Conversion Calculator Units is free to download, with in-app purchases available.
Is Unit Converter and Rates free?
Unit Converter and Rates is free to download, with in-app purchases available.
Which has better reviews, Conversion Calculator Units or Unit Converter and Rates?
Conversion Calculator Units is rated higher. Conversion Calculator Units averages 4.7 out of 5 from 5K ratings, while Unit Converter and Rates averages 4.1 from 75 ratings.
Do Conversion Calculator Units or Unit Converter and Rates have ads?
Both Conversion Calculator Units and Unit Converter and Rates show ads.
Which is updated more often, Conversion Calculator Units or Unit Converter and Rates?
Conversion Calculator Units ships an update every 2 months, and Unit Converter and Rates every 2 months. Most recently, Conversion Calculator Units was updated on November 3, 2026 and Unit Converter and Rates on October 29, 2026.

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