Calculus doodlus

Name: Calculus doodlus
Rating: 4.8 (581 reviews)
Author: Stéphan Barbé

Tape Calculator & History Log

Free · In‑App Purchases

581 Ratings
Age Rating

4+
Years
Category

Utilities
Developer

Stéphan Barbé
Language

EN
+ 4 More
Size

13.7
MB

A calculator that works like a sheet of paper, built around your calculations, not just their results. Keep them visible, editable, linked, and saved. Calculus doodlus keeps your calculations visible, line by line. Read them back, continue where you left off, or go back and change any number. • Edit, copy & link Touch and hold any number to edit it. Tap a line to reuse its value, or double-tap to link it to another calculation and keep the values in sync. • Percentages & VAT Calculate percentages or deduct VAT with ease. The calculation remains visible, so you can see exactly how the result was obtained. • Keep your calculations Your pages are saved automatically. Keep recent calculations, pin important ones, rename and share them, and switch between pages with a swipe. • Big numbers, exact results Every operation is performed digit by digit, the same way you learned in school. That's how Calculus doodlus handles very large numbers while keeping exact results on the page. • Make it your own Customize the keyboard color and replace its digits with your own handwriting. Add Calculus doodlus to your Lock Screen or Control Center for one-tap access. 4.8 stars from more than 10,000 ratings Every 2 seconds, someone somewhere in the world starts a new calculation page. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Ratings & Reviews

4.8

out of 5

581 Ratings

A Calculator Made Fun
Sep 6
Joshua D.
I really like at home and cheerful theme to this app, very much dig that you can customize the handwriting for the numerals and like how it keeps a record of everything entered. Who knew you could make a calculator so much fun and so enjoyable? I didn’t until now. Yay!The only reason I would actually give the app 4-stars instead of the five I gave it. Well, is because on this page it says you can remove the advertisements for a $1. But, in using the app I found that you can remove the ads for 10-days by watching an ad. That’s not what is written on the tin so to speak. It’s a very generous way to earn money and help the customer out. Hence the five-stars. Yet, I still wish that I could please have an option to fully remove the advertisements like this App Store page advertises please?I still would wholeheartedly recommend this seriously helpful and super nifty calculator. As I said, who else has made a calculator program this fun and endearing? No one as far as I’m concerned and I own way too many calculator apps, haha. It’s a strange addiction I have, I should seek help, perhaps. But, maybe you could offer both options for removing the advertisements please? Then people who want to pay can remove them for good and everyone else can partake in your generosity and remove them every ten days by watching the ads? But, if you found you made more by doing the ten days thing then I would never begrudge that and will happily watch 2 ads every ten days 👍🏻. Sorry to be nitpicking. Anyways, with seeing this developer’s kindness on display in their recent offering of their game, Pinblok, for absolutely free and with no ads. In addition to the kind way for you to remove ads for ten days here. Well, as I said, I think I’ll always give 5-stars to a dev. that is this much a diamond in the rough when it comes to nice and ethical developers on the Apple App Store. Thank you, again, for this app and all your superb apps and you’ve made a loyal fan out of me. God bless :).iPhone 13 Pro Max/ iOS 26.6.1Addendum:Ever besides the handwriting customization, you can also change the color of the interface or background and a few other options. A very thoughtful calculator I think. Again, highly recommended.

Developer Response
Thank you so much for this incredibly detailed review! I think this is the longest review I’ve ever received, and it genuinely made my day 😊Regarding the ads: you’re absolutely right that the App Store description can be confusing. I actually removed the option to purchase the ad-removal IAP at the beginning of the year because I’m currently preparing a new version of Calculus Doodlus with several new features. I didn’t want people to pay for ad removal now, knowing that the purchase would not carry over to the new version.The new version is taking a little longer than expected, but it’s coming! I’ll make sure the ad-removal option is properly addressed there.And thank you again for your kind words and for being such a loyal supporter of my apps. It really means a lot to me! 🙏
A Calculator Made Fun
Sep 6
Joshua D.

I really like at home and cheerful theme to this app, very much dig that you can customize the handwriting for the numerals and like how it keeps a record of everything entered. Who knew you could make a calculator so much fun and so enjoyable? I didn’t until now. Yay!The only reason I would actually give the app 4-stars instead of the five I gave it. Well, is because on this page it says you can remove the advertisements for a $1. But, in using the app I found that you can remove the ads for 10-days by watching an ad. That’s not what is written on the tin so to speak. It’s a very generous way to earn money and help the customer out. Hence the five-stars. Yet, I still wish that I could please have an option to fully remove the advertisements like this App Store page advertises please?I still would wholeheartedly recommend this seriously helpful and super nifty calculator. As I said, who else has made a calculator program this fun and endearing? No one as far as I’m concerned and I own way too many calculator apps, haha. It’s a strange addiction I have, I should seek help, perhaps. But, maybe you could offer both options for removing the advertisements please? Then people who want to pay can remove them for good and everyone else can partake in your generosity and remove them every ten days by watching the ads? But, if you found you made more by doing the ten days thing then I would never begrudge that and will happily watch 2 ads every ten days 👍🏻. Sorry to be nitpicking. Anyways, with seeing this developer’s kindness on display in their recent offering of their game, Pinblok, for absolutely free and with no ads. In addition to the kind way for you to remove ads for ten days here. Well, as I said, I think I’ll always give 5-stars to a dev. that is this much a diamond in the rough when it comes to nice and ethical developers on the Apple App Store. Thank you, again, for this app and all your superb apps and you’ve made a loyal fan out of me. God bless :).iPhone 13 Pro Max/ iOS 26.6.1Addendum:Ever besides the handwriting customization, you can also change the color of the interface or background and a few other options. A very thoughtful calculator I think. Again, highly recommended.
Developer Response Sep 8
Thank you so much for this incredibly detailed review! I think this is the longest review I’ve ever received, and it genuinely made my day 😊Regarding the ads: you’re absolutely right that the App Store description can be confusing. I actually removed the option to purchase the ad-removal IAP at the beginning of the year because I’m currently preparing a new version of Calculus Doodlus with several new features. I didn’t want people to pay for ad removal now, knowing that the purchase would not carry over to the new version.The new version is taking a little longer than expected, but it’s coming! I’ll make sure the ad-removal option is properly addressed there.And thank you again for your kind words and for being such a loyal supporter of my apps. It really means a lot to me! 🙏
The best calculator needs an update
12/02/2020
BluPro Home Inspection
Still the best calculator and one of my most used apps but it needs an update to allow split screen work. Developer was very quick to respond to my email and is considering it on the next update.

Developer Response
Thanks for your support!
The best calculator needs an update
12/02/2020
BluPro Home Inspection

Still the best calculator and one of my most used apps but it needs an update to allow split screen work. Developer was very quick to respond to my email and is considering it on the next update.
Developer Response 11/30/2020
Thanks for your support!
Very handy
04/28/2018
KburakA
It is easy to use and look or get previous numbers for next steps. I totally suggest it
Very handy
04/28/2018
KburakA

It is easy to use and look or get previous numbers for next steps. I totally suggest it
هذا البرنامج رائع جدا
10/20/2024
٤٦٤٢
This program is very cool. Thank you, you are creative. I hope it continues to develop and thank you🤲🏻

Developer Response
Thanks 🙏
هذا البرنامج رائع جدا
10/20/2024
٤٦٤٢

This program is very cool. Thank you, you are creative. I hope it continues to develop and thank you🤲🏻
Developer Response 10/22/2024
Thanks 🙏

New in 3.0.1: Thanks to your feedback, Copy to Clipboard is back! • Copy a result: Touch and hold any result for about half a second. • Copy the whole page: Touch and hold a blank area on the page for about a second. • Includes minor bug fixes and improvements. --- Calculus doodlus 3.0 is here! This is a major update, with a completely redesigned way to manage your calculations. • Edit your calculations Made a typo? Need to change a number? Just touch and hold any number on the page. A small keypad appears, letting you edit the value directly — without having to start the calculation again. • Link calculations Double-tap a line to create a permanent link between calculations. When the original value changes, the linked value changes automatically too. It's a simple way to keep related calculations in sync. • Pages Open, pin, rename, share or delete your pages. • Lock Screen & Control Center Calculus doodlus is now just one tap away. Add it to your Lock Screen or Control Center for instant access. And of course, all the things that make Calculus doodlus what it is are still here: copy and reuse values, percentages and VAT, exact calculations with very large numbers, square roots, customizable colors and your own handwriting. Welcome to Calculus doodlus 3.0.

Version 3.0.1 3d ago

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
Data Not Linked to You

The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Supported Features
- Dark Interface
- Differentiate Without Color Alone
- Sufficient Contrast
- Reduced Motion

Information

Seller: Stephan Barbe
Size: 13.7 MB
Category: Utilities
Compatibility: Requires iOS 17.0 or later.

iPhone
Requires iOS 17.0 or later.

iPad
Requires iPadOS 17.0 or later.

Apple Vision
Requires visionOS 1.0 or later.
Languages: English and 4 more

English, French, German, Italian, Spanish
Age Rating: 4+

4+

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Contains
Advertising
In-App Purchases: Yes

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