Comparison

Calzy vs Flex Widgets

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

Head to head
About

Calzy

This app offers a modern and intuitive way to perform everyday calculations. It features a unique Memory Area for reusing values, bookmarking for saved calculations, and leverages the latest iOS technologies for a seamless experience. Designed with privacy in mind, it's suitable for students and professionals alike.

Highlights
  • Memory Area for reusing values
  • Calculation bookmarking with titles
  • Basic and advanced calculation modes
  • Privacy mode with Face ID
  • Live Activity and Haptic Touch support
  • Customizable keypad layout
  • Dark and Light modes
Features
Read full description

Make your day-to-day calculations quick, easy, and beautiful with Calzy. Whether you're a student, professional, or just looking for a better way to manage your everyday math, Calzy is the perfect solution. With its advanced features and gorgeous design, Calzy will quickly become your go-to calculator. One of its standout features is the "Memory Area," where you can store and easily reuse multiple numerical values with just a drag and drop. Another one is the bookmarking feature, allowing you to save any calculation with a title for future reference. Using the latest iOS technology, like Live Activity, Drag and Drop, Haptic Touch, Face ID, and more, Calzy makes mathematical problem-solving a seamless experience. And with privacy being our top concern, rest assured your data stays with you. Key Features: • Memory Area for saving and reusing numerical values • Basic and advanced modes • History and Bookmarking with privacy mode (Face ID support) • Clean, modern, and beautiful design • Privacy-conscious app • Multitasking with slide-over and split view for iPad • Haptic Feedback for a more immersive experience • Tax + and Tax - functions • Quick toggle for decimal and currency rounding • Smart parenthesis • Today widget and iMessage extension • Ability to edit keypad layout • Apple Pencil 2 support and external keyboard support • Dynamic type support for enhanced readability • Custom App Icon support for a personalized touch • Universal app for iPhone, Apple Watch, and iPad • Handoff support, start on one device and resume on another • iCloud sync • Dark and Light modes with multiple color accents • Regional support for countries using decimal commas • Instant calculations as you type • Bookmarks are available in the Spotlight search • Universal purchase for all your devices • Family Sharing support • Localized in Chinese, Japanese, French, Italian, Russian and German Powered by the latest iOS technology, Calzy is the calculator for the new age.

About

Flex Widgets

Create custom widgets for your device's home screen with a powerful and intuitive editor. Add text, images, health data, clocks, and more, then customize their appearance and arrangement.

Highlights
  • Build custom widgets
  • Add text, images, and health data
  • Place icons, emojis, and shapes
  • Create countdowns and calendars
  • Design digital and analog clocks
  • Share and import widget designs
  • Create custom widget themes
Features
Read full description

Build your own widgets with the first real widget editor, edit your widgets the way you want. We bring you a super intuitive, powerful widget editor. The all in one widget app. You can place: - texts, icons, emojis, shapes - images, image slideshows - health data like heart rate or steps count (Flex Widgets gets this data from your Health app) - drawings, buttons, shortcuts buttons - weather icons, weather text elements - date elements, countdowns, countdown visuals, calendars, week overviews - digital time elements, analog clocks - border outlines - and more elements in your widgets. (If you want your health data like heart rate, steps count, exercise time to be displayed inside of your widgets you need to grant the Flex Widgets access to your Health app.) With our widget editor you simply place elements on your widget, edit, move, resize and rotate them. Those elements can be placed on top of each other and you can edit them however you want. Everything is fully comstomisable. Change the text font, color your widgets, add outlines and place as many of the mentioned elements as you want. Share widgets The cool thing is: you don’t even need to be creative to enjoy our widget editor. You can use the widgets others have created or pick out of the widget gallery inside of Flex Widgets. Sharing widgets is super simple. Just press share and send your widget link to your friends! Widget Themes You can also give all your widgets the same look by creating widget themes. So every widget can have the same font, background color, outline border, etc. Here are some more cool features: - Add a drawing element to your widget and turn it into a sticky note. Tapping on it on your homescreen will let you draw on it! - Add buttons to your widgets to open websites or run shortcuts. - Add picture slideshows and have the pictures change every minute. - Health charts: display your heart rate, activity, walk distance and many more health data points in our fully customisable health charts to see how your body is doing. (Flex Widgets gets this data from your Health app)

Screenshots

Calzy4 screens
Flex Widgets4 screens

Verdict

The call

The clearest difference is rating: Calzy at 4.7 against Flex Widgets's 3.7. Calzy also leads on review sentiment (77% vs 39%) and update cadence (every 2 days vs every 11 days). Flex Widgets's advantage is in-app purchases (none vs 3) and iOS requirement (14.0 vs 26.0). On ads, chart position 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

Calzy costs $1.99 and Flex Widgets $2.99 up front. Calzy sells 3 one-off in-app purchases. Flex Widgets asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Calzy holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: Calzy has 1.9K ratings behind it against 98, so its average is the more settled of the two. Written reviews point the same way: 77% of Calzy's written reviews are positive against 39% of Flex Widgets's.

UpkeepUpdate frequency

Calzy ships an update every 2 days, Flex Widgets every 11 days. The most recent releases landed on September 26, 2026 and September 25, 2026 respectively.

Scorecard8 real differences · 3 level
Calzy versus Flex Widgets: the parameters behind the verdict, then further details
ParameterCalzyFlex Widgets
Price$1.99 — better$2.99
Rating4.7 (1.9K ratings) — better3.7 (98 ratings)
Positive reviews76.7% of reviews — better38.7% of reviews
Number of ratings1.9K — better98
Update frequencyEvery 2 days — betterEvery 11 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaidFree — better
Best chart rank#125#101 — better
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS26.014.0 — better
Further details — not scored
Size66 MB6 MB
Age rating4+4+
DeveloperRaja VijayaramanYannik Schrade

Customer experience

Calzy

All ratings1,899 ratings
Positive92.9%
Neutral1.8%
Negative5.2%
Written reviews584 reviews
Positive76.7%
Neutral7.7%
Negative15.6%

Flex Widgets

All ratings98 ratings
Positive64.3%
Neutral8.2%
Negative27.6%
Written reviews124 reviews
Positive38.7%
Neutral13.7%
Negative47.6%

In-app purchases

3 purchases

Calzy

One-time3
  • Small Tip$0.99
  • Medium Tip$3.99
  • Huge Tip$9.99
None

Flex Widgets

No in-app purchases

Questions

Is Calzy free?
Calzy costs $1.99, and also offers in-app purchases.
Is Flex Widgets free?
Flex Widgets costs $2.99, with no in-app purchases.
Which has better reviews, Calzy or Flex Widgets?
Calzy is rated higher. Calzy averages 4.7 out of 5 from 1.9K ratings, while Flex Widgets averages 3.7 from 98 ratings.
Do Calzy or Flex Widgets have ads?
Neither Calzy nor Flex Widgets shows ads.
Which is updated more often, Calzy or Flex Widgets?
Calzy ships an update every 2 days, and Flex Widgets every 11 days. Most recently, Calzy was updated on September 26, 2026 and Flex Widgets on September 25, 2026.
Which is more popular, Calzy or Flex Widgets?
Calzy currently peaks at #125 in the App Store charts, and Flex Widgets at #101. Chart position reflects recent download velocity rather than total install base.

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