Calculator + vs Tydlig
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator +
This app offers a free basic and scientific calculator with an intuitive interface. It supports fractions, percentages, and advanced editing. Optional upgrades provide specialized calculators for fractions with units, polynomial and linear equation solving, graphing, and geometric shapes.
- Free basic and scientific calculator
- Intuitive interface with equation and result display
- Fraction and percent support
- Advanced editing capabilities
- Polynomial and linear equation solver
- Graphing calculator
- Unit conversion and geometric calculators
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Award winning calculator app for iPad and iPhone. Designed with simplicity, usability and beauty in mind! FEATURES: - Free basic calculator - Free scientific calculator - Elegant & Intuitive interface - Advanced editing by easily going back and forth - Displays both the equation & the result at the same time - Supports Fraction & Percent - Supports many scientific functions If you are looking for more advanced features you can upgrade to one or more of the following: - Fraction Calculator with feet, inches & cm support! - Solving for x with a polynomial Calculator for solving quadratic & cubic equations 2x³ - 4x² - 22x + 24 = 0 - Linear Equations Solver for solving system of linear equations 2x – y = 9 3x + 4y = –14 - Graphing Calculator to find the local min, max & intersection points y = 2x³ – 4x (x² + y²)³ = -27y²x² - Triangle Calculator - Cone Calculator - Arc Calculator - Circle Calculator - Base Converter ( HEX OCT BIN DEC ) - Multiple themes Enjoy the FREE Scientific calculator on your iPhone & iPad. If you like it, support us by upgrading or giving us a positive review. Thanks :) Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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: Calculator + at Free against Tydlig's $1.99. Calculator + also leads on update cadence (every 5 days vs monthly) and ratings volume (10K vs 2.6K). Tydlig's advantage is in-app purchases (none vs 12) and ads (none vs shown). On review sentiment 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
Calculator + is free to download; Tydlig costs $1.99 up front. Calculator + sells 12 in-app purchases, starting at $4.99 per month. Tydlig asks for nothing beyond the download.
Tydlig holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 10K and 2.6K respectively. Written reviews point the same way: 85% of Calculator +'s written reviews are positive against 91% of Tydlig's.
Calculator + ships an update every 5 days, Tydlig monthly. The most recent releases landed on October 17, 2026 and October 18, 2026 respectively.
| Parameter | Calculator + | Tydlig |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 4.6 (10K ratings) | 4.8 (2.6K ratings) — better |
| Positive reviews | 84.9% of reviews | 91.4% of reviews — better |
| Number of ratings | 10K — better | 2.6K |
| Update frequency | Every 5 days — better | Monthly |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 9.0 — better |
| Further details — not scored | ||
| Size | 49 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | xNeat.com | Tydlig Software AB |
Customer experience
Calculator +
Tydlig
User reviews
Calculator +
From 10K App Store ratingsWhat we love
- 👍 Great features and easy to use
- 👍 Efficient and quick
- 👍 Versatile, functional calculator
- 👍 Fantastic, easy to use app
- 👍 Awesome calculator app
Room to improve
- 🐛 New updated layout is awful
- 🐛 App is now terrible
- 🔒 Paying customer screwed over by update
- 🔒 Now timed trial, no free w/ads version
- 🔒 Not honest
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
Calculator +
Reported bugs
5 issues- Fraction calculator has TWO subtraction buttons and NO division button
- Decimals seem to be changed to fraction with no apparent way of changing it back
- Functionality is dropped by forcing you to the main menu every time you open it
- Currency converter broken
- Login screen freezes
Requested features
5 requests- Add mod function
- Add commas
- Add 1/x function
- Support for Retina Display
- Add number 4 with two lines
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
Calculator +
- Scientific Calculator3 Days trial$4.991 Month
- Calculator7 Days trial$39.991 Year
- Linear Calculator$2.99
- Factoring Calculator$2.99
- Handwriting Calculator$2.99
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- Currency Converter$2.99
- Themes Pack$2.99
- Graphing Calculator$3.99
- Fraction Calculator$3.99
- Scientific Calculator$4.99
- Calculator Plus$4.99
- Calculator$16.99
Tydlig
No in-app purchases









