Comparison

Calculator Pro+ for iPad vs Uair

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

Head to head
About

Calculator Pro+ for iPad

This app offers both basic and scientific calculation modes, alongside a comprehensive unit and currency converter. It supports multitasking, allowing simultaneous use with other applications, and features a history bar for tracking calculations.

Highlights
  • Basic and scientific calculator modes
  • Universal unit and currency converter
  • Multitasking mode
  • Calculation history bar
  • Customizable skins
  • VoiceOver accessibility
Read full description

A simple calculator for your iPad with unit & currency converter and multitasking mode. Get it now for free! Calculator Pro main features: - Basic calculator in Portrait Mode - Scientific calculator in Landscape Mode - Universal converter for Currency, Length, Time, Weight, Pressure, Temperature, Fuel Consumption, Speed and many more categories - Multitasking mode: use Calculator Pro and any other app simultaneously Calculator Pro+ for iPad is designed for everyone looking for simplicity and functionality. Enjoy basic calculations in Portrait Mode with big handy buttons, or make complex calculations in scientific calculator, available in Landscape Mode. Calculator Pro is the only one calculator needed for math classes from primary school through college. The app is great in basic everyday calculations and solving complex problems in physics, astronomy or chemistry as well. Need to convert one unit to another? With the intuitive and beautifully designed converter, you can easily switch between currencies, temperatures, length, speed and other numerous units, and continue calculation without interruptions. Features: • Two modes are available: do basic calculations in Portrait Mode or go advanced in Landscape Mode • Degrees and Radians calculations • History Bar: see your full calculation history directly on the screen • Track Calculations History: view, save, delete selected equation or clear all • Universal converter with 19 categories, including Currency, Length, Time, Weight, Pressure, Temperature, Area, Data Size, Energy, Force, Frequency, Power, Acceleration, Density, Angle, Typography, Volume, Fuel Consumption and Speed • Handy text search to find categories and units instantly • Multitasking mode: bring in Calculator Pro while viewing web pages, photos, taking notes and more to get results instantly! • Calculator Pro is now accessible via VoiceOver as well • Smart Keyboard support: take full advantage of seamless and intuitive calculations on your iPad Pro • Pick the look from a bunch of skins to suit your own preference (Modern, Rose, Wood, Old, Doodle, Minimalistic, Zombie, Yellow, New Year) • Memory buttons to help you out with complex calculations • Accidentally input the wrong number? Just swipe with your finger to edit it! • Copy and paste results and expressions directly into the current calculation • Comment on the equation and send the calculation results with comments via email Now you can do calculations on the go seamlessly! For complete access to all Calculator Pro+ for iPad features, you will need to allow access to the following: *Location data - this will enable automatic currency selection in the Converter. Privacy Policy: http://apalon.com/privacy_policy.html EULA: http://www.apalon.com/terms_of_use.html California Privacy Notice: https://apalon.com/privacy_policy.html#h AdChoices: https://apalon.com/privacy_policy.html#i

About

Uair

Features
Read full description

Uair sets a mechanical watch to the second, then keeps a record of every watch you own and how each one runs. SET IT Pick a minute and Uair counts you in. Pull the crown to stop the seconds hand at 12, set the hands to the time on screen, and wait. The last three seconds fill the screen. At zero the screen flips and the phone taps in your hand: push in the crown. That's it, to the second, against your iPhone's network time. FIVE FACES Day-Date, GMT, Moonphase, Dive and Chronograph, each drawn for its complication: the date window, a second timezone on the 24-hour hand, today's moon, the bezel, the subdials. Each one comes with a short guide to what the hands are for and how to set them. THE COLLECTION Keep every watch you own in one place: photos, reference, serial, movement, what you paid, and every service. Uair lifts each watch out of its photo and sets them all at the same size, so the collection looks like one. Then find out how it really keeps time: • Listen. Lay the watch on the phone and Uair times its tick through the microphone. A rate in seconds a day, with beat rate and beat error, in about twenty seconds. • Check the time. Tap as the seconds hand passes 12, again a day or two later. Over a few days of wear you get the rate on the wrist: every position, every temperature, the one that matters. Rates are kept run by run, so you can see a watch before and after a regulation, and which ones have started to drift. WIDGETS A watch face for the Home Screen, Lock Screen and StandBy, and a Watch rate widget that shows how one of your watches is running. PRIVATE No account, no analytics. Your watches stay on your device, photos are cut out on the device, and the microphone sound is analysed as it arrives and never saved or sent anywhere. PRICING Setting your watch, the faces and the face widgets are free, always. The Collection is a one-time unlock with a free 14-day trial. The trial ends on its own and never charges you. Unlocking is one payment, with no subscription, and Family Sharing is supported.

Screenshots

Uair4 screens

Verdict

The call

The clearest difference is in-app purchases: Uair at none against Calculator Pro+ for iPad's 5. Uair also leads on ads (none vs shown). Calculator Pro+ for iPad's advantage is iOS requirement (13.0 vs 26.0). On price, update cadence and device support 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. Calculator Pro+ for iPad sells 5 in-app purchases, starting at $0.99 per 7 days. Uair asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 7 level
Calculator Pro+ for iPad versus Uair: the parameters behind the verdict, then further details
ParameterCalculator Pro+ for iPadUair
PriceFreeFree
Rating4.4 (62K ratings) — better—
Positive reviews26.0% of reviews—
Number of ratings62K — better—
Update frequencyMonthlyMonthly
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPadiPhone, iPad — better
Requires iOS13.0 — better26.0
Further details — not scored
Size183 MB5 MB
Age rating17+4+
DeveloperMosaic S.r.l.Dominic McPhee

Bugs and requests

Calculator Pro+ for iPad

Reported bugs

2 issues
  • Calculations not working correctly
  • Unable to restore past purchases

Requested features

3 requests
  • More calculator themes and functionality
  • Memory function
  • Compatibility with iPhone

Uair

Not enough reviews yet to summarise bugs or requests.

In-app purchases

5 purchases

Calculator Pro+ for iPad

Subscriptions4
  • Premium Weekly with free trial7 Days trial$0.997 Days
  • Premium Weekly$0.997 Days
  • Premium Yearly with Free Trial7 Days trial$19.991 Year
Show 1 more
  • Premium Yearly$19.991 Year
One-time1
  • Calculator Pro for iPad Full$0.99
None

Uair

No in-app purchases

Questions

Is Calculator Pro+ for iPad free?
Calculator Pro+ for iPad is free to download, with in-app purchases available.
Is Uair free?
Uair is free to download, with no in-app purchases.
Do Calculator Pro+ for iPad or Uair have ads?
Calculator Pro+ for iPad shows ads; Uair does not.
Which is updated more often, Calculator Pro+ for iPad or Uair?
Calculator Pro+ for iPad ships an update monthly, and Uair monthly. Most recently, Calculator Pro+ for iPad was updated on November 1, 2026 and Uair on October 25, 2026.

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