
1+1 Calculator
Show your work, every time
About
A minimalist calculator app for iPad and iPhone, offering a modernized classic experience with an advanced clipboard mechanism. Personalize your calculator with premium color schemes to match your device.
What's New in 1+1 Calculator
2.0.0
July 9, 2026
A from-scratch rebuild for modern iPhone and iPad: an always-on calculation tape, calculator tabs, a scientific mode, plus VAT/GST, tip, interest and FIRE calculators. No ads.
MoreIn-App Purchases
$2.99
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This app is offered for free with no restrictions. Advertisements are shown. If you do not want advertisements to show up, you can remove them by making an in-app purchase.
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FAQ
What makes 1+1 Calculator different from other calculators?
1+1 Calculator offers a modernized classic experience with an advanced clipboard mechanism, replacing traditional memory buttons. It also features premium color schemes for personalization.
Can I personalize the look of 1+1 Calculator?
Yes, you can choose from premium color schemes like Gold, Silver, and Space Gray to match your device's aesthetic.
What devices is 1+1 Calculator available on?
1+1 Calculator is designed for iPad and iPhone, and is also supported on iPod.
Is 1+1 Calculator free to use?
Yes, 1+1 Calculator is free to download and use. It may offer in-app purchases for additional features or customization options.
How often is 1+1 Calculator updated?
The latest version, 1.5, was released on August 11, 2015. Updates are not frequent, with the last update being in 2015.
What is the age rating for 1+1 Calculator?
1+1 Calculator has an age rating of 4+, making it suitable for young users and general audiences.
Does 1+1 Calculator have ads?
No, 1+1 Calculator does not contain advertisements, as indicated by the absence of an 'hasAds' flag.
What kind of user feedback does 1+1 Calculator have?
Based on the available data, 1+1 Calculator has a rating of 4.0 stars from 1 rating, suggesting generally positive initial user reception.










