Kalkyl vs Tydlig
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kalkyl
A powerful and intuitive calculator designed for speed and ease of use. Features include collaboration, haptic feedback, and advanced input methods like keyboard trackpad mode. Offers basic graphing and localized number formatting for a seamless user experience.
- Optimized for quick calculations
- Collaborate on documents
- Intuitive design with haptic feedback
- Keyboard trackpad and pointer interactions
- Basic graphing capabilities
- Localized number formatting
- Undo and Redo support
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Kalkyl is just a really good calculator. • Optimized for quick calculations. • Collaborate on documents. • Simple and intuitive design. • Haptic feedback (on supported devices). • Undo and Redo support (shake to Undo). • Keyboard trackpad mode using 3D Touch, or Haptic Touch (on supported devices), or two fingers on iPad. • Pointer interactions on iPad. • Basic graphing. • Properly localized number formatting. • App-wide dynamic type support. • Accessible. Terms of Use: https://kalkyl.io/terms.html
Tydlig
This app reimagines the calculator experience with a freeform canvas, dynamic results, and linked numbers. It allows for easy everyday calculations, real-time graphing, and annotation, making complex math visualization intuitive.
- Freeform canvas for calculations
- Responsive and linked results
- Real-time graphing
- Infinite scrolling history
- Annotate numbers with text
- Slider for tweaking values
- Export as PDF or image
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Calculators have changed very little since the 1970s - while phones from that era look ancient. Why should calculators cling to a 40 year old design with a wall of buttons and one row for results in the age of retina displays? We deserve something better. Tydlig brings the calculator to the next level for iPhone & iPad with innovations like freeform canvas, responsive results and linked numbers. Tydlig is perfect for calculating everyday things like tips and discounts, showing the entire history and allowing you to change any number with instant updates. For deeper calculations real-time graphing is an excellent way to explore and visualize things like bank interest rates and trigonometric functions. Features: * Responsive results: Edit any number on the canvas and see all results update automatically. Let your calculator work for you, not the other way around. * Linked numbers: With a result selected, press any operation to create a linked number below. Responsive results will cascade down these links. * All history is stored on an infinite scrolling canvas. Drag numbers around and reuse them as you wish. * Annotate any number with an attached text label, like a freestyle spreadsheet. * Real-time graphing: Link numbers to a graph and any change to the expression will instantly update the graph. Perfect when trying to explore how functions work and behave. * Use the Slider to tweak any number and see results and graphs update in real-time. Combined with the graph it is an excellent way to visualize and teach math. Tap the slider to toggle between discrete and continuous modes. * Share the entire canvas by printing, or exporting as a high quality PDF. You can also copy calculations as text, or save the visible area as an image which can be used in other applications like Pages or Word. * Undo support. * Supports external Bluetooth keyboards for really quick digit and basic operations entry (+, -, *, /). * Tydlig works completely offline, no need to be connected to the internet. * Lots of power under the hood with a lightning fast calculation engine, over 20 mathematical functions and scientific notation formatting options.
Screenshots
Verdict
The clearest difference is price: Kalkyl at Free against Tydlig's $1.99. Tydlig's advantage is in-app purchases (none vs 1) and rating (4.8 vs 4.5). On update cadence, ads 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
Kalkyl is free to download; Tydlig costs $1.99 up front. Kalkyl sells 1 in-app purchase, starting at $4.99 per year. Tydlig asks for nothing beyond the download.
Tydlig holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 714 and 2.6K respectively. Written reviews point the same way: 75% of Kalkyl's written reviews are positive against 91% of Tydlig's.
Kalkyl ships an update every 5 weeks, Tydlig monthly. The most recent releases landed on September 23, 2026 and September 25, 2026 respectively.
| Parameter | Kalkyl | Tydlig |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 4.5 (714 ratings) | 4.8 (2.6K ratings) — better |
| Positive reviews | 74.7% of reviews | 91.4% of reviews — better |
| Number of ratings | 714 | 2.6K — better |
| Update frequency | Every 5 weeks | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium — better | Paid |
| Devices | iPhone, iPad, iPod, Vision Pro — better | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 9.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | nordic io | Tydlig Software AB |
Customer experience
Kalkyl
Tydlig
User reviews
Kalkyl
From 714 App Store ratingsWhat we love
- 🚀 Efficient and fast
- 👍 Intuitive and simple interface
- 🔒 No ads or in-app purchases
- 🎨 Beautiful design
- 🔢 Useful graphing and calculation features
Room to improve
- 🐛 Occasional crashes or bugs
- 💡 Lack of clear/reset button
- 💡 Missing history or memory functions
- 💡 Difficulty controlling graphing view
Tydlig
From 2.6K App Store ratingsWhat we love
- 👍 Intuitive and easy to use
- 🚀 Powerful and flexible
- 💡 Innovative approach to calculations
- 🔍 Ability to see calculation history
- 📊 Helpful graphing capabilities
Room to improve
- 🔀 Lack of ability to save/load multiple canvases
- 🔀 No way to organize calculations into separate sheets/pages
- 🔀 Inability to add notes or labels to calculations
- 🐛 Occasional crashes and bugs
- 🔀 No support for fractions or complex math functions
Bugs and requests
Kalkyl
Reported bugs
3 issues- Crashes on launch for some users
- Graphing issues with certain equations
- Incorrect results for some calculations
Requested features
5 requests- Add a clear/reset button
- Implement calculation history and memory functions
- Improve graphing controls and zooming
- Add support for more mathematical functions (e.g. factorials, fractions)
- Provide an option for independent dark mode
Tydlig
Reported bugs
4 issues- Crashes when trying to use graphing feature
- Calculation history disappears after app restart
- Compatibility issues with newer iOS versions
- Labeling calculations with non-Latin characters causes display issues
Requested features
6 requests- Add support for multiple canvases/sheets to save and load calculations
- Implement ability to add notes, labels, and annotations to calculations
- Expand math functions to include fractions, combinations, permutations, etc.
- Introduce iCloud/cloud sync to access calculations across devices
- Add option to snap objects to a grid for better organization
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- Implement templates or preset calculation layouts
In-app purchases
Kalkyl
- Kalkyl Pro3 Days trial$4.991 Year
Tydlig
No in-app purchases









