Comparison

Calzy vs Things 3 for iPad

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
Currently charting
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

Things 3 for iPad

This app helps you organize your life by planning your day, managing projects, and tracking progress toward your goals. It offers a user-friendly interface to get tasks organized quickly, from daily routines to long-term aspirations.

Highlights
  • To-Do management
  • Project planning with headings
  • Area organization
  • Today and Upcoming task views
  • Reminders and repeaters
  • Calendar integration
  • Tagging and filtering
Features
Read full description

Get things done! The award-winning Things app helps you plan your day, manage your projects, and make real progress toward your goals. Best of all, it’s easy to use. Within the hour, you’ll have everything off your mind and neatly organized—from routine tasks to your biggest life goals—and you can start focusing on what matters today. “Things offers the best combination of design and functionality of any app we tested, with nearly all the features of other power user applications and a delightful interface that never gets in the way of your work.” —Wirecutter, The New York Times KEY FEATURES • Your To-Dos Your basic building block is the almighty To-Do—each a small step toward a great accomplishment. You can add notes, tag it, schedule it, and break it down into smaller steps. • Your Projects Create a Project for any big goal, then add the to-dos to reach it. Use headings to structure your list as you outline your plan. There’s also a place to jot down your notes, and a deadline to keep you on schedule. • Your Areas Create an Area for each sphere of your life, such as Work, Family, Finance, and so on. This keeps everything neatly organized, and helps you see the big picture as you set your plans in motion. • Your Plan Everything on your schedule is neatly laid out in the Today and Upcoming lists, which show your to-dos and calendar events. Each morning, see what you planned for Today and decide what you want to do. The rest is down to you :) MORE THINGS TO LOVE As you dive deeper, you’ll find Things packed with helpful features. Here are just a few: • Reminders — set a time and Things will remind you. • Repeaters — automatically repeat to-dos on a schedule you set. • This Evening — a special place for your evening plans. • Calendar integration — see your events and to-dos together. • Tags — categorize your to-dos and quickly filter lists. • Quick Find — instantly locate to-dos, headings, or tags. • Type Travel — jump from list to list with your keyboard; just start typing! • Magic Plus — drag the + button to insert to-dos anywhere in a list. • Share extension — create to-dos with content from other apps. • Widgets — see lists on your home/lock screens. • Mail to Things — forward an email to Things; now it’s a to-do. • Markdown — structure & style your notes. • And much more! MADE FOR IPAD Things is tailored to the iPad, with excellent pro features as well. Chief among them is the outstanding support for your keyboard & trackpad. You can edit your to-dos without touching the screen, utilize plenty of shortcuts, and navigate your lists at blistering speed—just start typing! “Things has the best implementation of external keyboard support I’ve ever seen in an iPad app.” —Federico Viticci, MacStories You can also enjoy a beautiful dark mode at sunset, connect your calendars, open multiple windows, add a variety of widgets, scribble with Apple Pencil, create to-dos via Siri, import from Reminders—Things can do it all! There’s even Shortcuts integration if you want to automate your workflows. AWARD-WINNING DESIGN Made in Stuttgart, with two Apple Design Awards to its name, Things is a fine example of German engineering: designed not only to look fantastic, but to be perfectly functional as well. Every detail is thoughtfully considered, then polished to perfection. “It’s like the unicorn of productivity tools: deep enough for serious work, surprisingly easy to use, and gorgeous enough to enjoy staring at.” —Apple GET THINGS TODAY Whatever it is you want to accomplish in life, Things can help you get there. Install the app today and see what you can do! • Things is also available for Mac, iPhone, Apple Watch, and Apple Vision Pro (sold separately). • Sync is provided for free via our Things Cloud service. • A free trial is available for Mac: www.things.app If you have any questions, please get in touch. We provide professional support and will be glad to help you!

Screenshots

Calzy4 screens

Verdict

The call

The clearest difference is price: Calzy at $1.99 against Things 3 for iPad's $19.99. Calzy also leads on update cadence (every 2 days vs every 10 days) and chart position (#45 vs unranked). Things 3 for iPad's advantage is in-app purchases (none vs 3) and rating (4.9 vs 4.7). On review sentiment, ads and monetization model 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 Things 3 for iPad $19.99 up front. Calzy sells 3 one-off in-app purchases. Things 3 for iPad asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Things 3 for iPad holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: Things 3 for iPad has 12K ratings behind it against 1.9K, 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 79% of Things 3 for iPad's.

UpkeepUpdate frequency

Calzy ships an update every 2 days, Things 3 for iPad every 10 days. The most recent releases landed on September 23, 2026 and September 24, 2026 respectively.

Scorecard8 real differences · 3 level
Calzy versus Things 3 for iPad: the parameters behind the verdict, then further details
ParameterCalzyThings 3 for iPad
Price$1.99 — better$19.99
Rating4.7 (1.9K ratings)4.9 (12K ratings) — better
Positive reviews76.7% of reviews79.4% of reviews — better
Number of ratings1.9K12K — better
Update frequencyEvery 2 days — betterEvery 10 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaidPaid
Best chart rank#45 — better—
DevicesiPhone, iPad, Apple Watch — betteriPad
Requires iOS26.016.4 — better
Further details — not scored
Size66 MB65 MB
Age rating4+4+
DeveloperRaja VijayaramanCultured Code GmbH & Co. KG

Customer experience

Calzy

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

Things 3 for iPad

All ratings11,793 ratings
Positive97.7%
Neutral1.2%
Negative1.1%
Written reviews815 reviews
Positive79.4%
Neutral8.1%
Negative12.5%

Bugs and requests

Calzy

Not enough reviews yet to summarise bugs or requests.

Things 3 for iPad

Reported bugs

2 issues
  • Sync issues and data loss reported
  • Siri integration not working well in some languages

Requested features

4 requests
  • Add location-based reminders
  • Improve task prioritization and urgency indicators
  • Implement mass editing and batch actions
  • Introduce web app and Windows support

In-app purchases

3 purchases

Calzy

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

Things 3 for iPad

No in-app purchases

Questions

Is Calzy free?
Calzy costs $1.99, and also offers in-app purchases.
Is Things 3 for iPad free?
Things 3 for iPad costs $19.99, with no in-app purchases.
Which has better reviews, Calzy or Things 3 for iPad?
Things 3 for iPad is rated higher. Calzy averages 4.7 out of 5 from 1.9K ratings, while Things 3 for iPad averages 4.9 from 12K ratings.
Do Calzy or Things 3 for iPad have ads?
Neither Calzy nor Things 3 for iPad shows ads.
Which is updated more often, Calzy or Things 3 for iPad?
Calzy ships an update every 2 days, and Things 3 for iPad every 10 days. Most recently, Calzy was updated on September 23, 2026 and Things 3 for iPad on September 24, 2026.

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