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Soulver - the notepad calculator

By Acqualia

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Soulver is a revolutionary calculator replacement app. Its powerful UI lets you do calculations over multiple lines, and use can also use words alongside numbers, so that they make sense.

Soulver is great for back-of-the-envelope calculations, currency conversions while travelling, working out percentages, calculations involving changing variables, and much more.

Soulver supports Dropbox & iCloud syncing, and is also available for macOS.


- Instant answers as you type (no need to use equals!).

- Spread your calculations over multiple lines (so your brain doesn't explode).

- Reference previous answers in your current line (kind of like a mini-spreadsheet).

- Annotate numbers with inline labels (you'll thank yourself later when you read them back!).

- Do percentage calculations using natural phrases "15% off $350" (has support for 9 different percentage phrases).

- Supports over 150 currencies (including Bitcoin), and has a specially designed currency keyboard for quick conversions.

- Custom variables across all your documents, and a special keyboard for quick access to them.

- All standard math and programming functions, also available on specially designed keyboards.

What's New in Version 2.5.4

Minor Improvements:
- Added a setting to change the font.
- Tapping the purple 'add variable' button now shows the variable editor immediately.
- An "of" is now automatically inserted when tapping a line reference after a "%".

Bug fixes:
- Fixed an issue where the keyboard could be partially off screen when launched on an iPhone 6 plus sized device in landscape.
- Fixed a crash that happened when holding down on the 'Add variable' button.
- Fixed a jumpy animation when moving variables around, on the variables keyboard.
- Fixed a couple of minor bugs with the currency keyboard.
- Some improvements to Soulver's math engine.


iPhone Screenshot 1
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iPad Screenshot 1
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Customer Reviews

Love it but would like more file handling

I love this app, I use it to provide quick and accurate estimates to my clients with good F/X approximations. I love the unit handling (it's clever and quick) and conversions between units are a breeze. My only gripe with the app is it can't open or export .soulver files from other apps. This to me is important as I save multiple files on google drive from the Mac version of the app, but have no way of opening them in the mobile version. Further yet, it would be handy to create a file and then export to other apps as a .soulver file.

Must have app

Forget the built in calculator in iOS. This is one of my main home screen apps. Allows me to perform calculations quickly and intuitively. While traveling converting currencies is a breeze. You can save calcs in app and also sync to icloud. If you have an airprint printer you can also easily print out calcs.

Same developer also has a desktop app.


It may be hard to believe that an app is indispensable, but I tend to reflect on software utility on the basis of how much I like it, how much I use it, and how much I'd miss it if it were no longer available.

In short: I use this every day, more so on the Mac perhaps, but the iOS version is very handy in the hand.

Soulver - the notepad calculator
View in iTunes
This app is designed for both iPhone and iPad
  • £3.99
  • Category: Productivity
  • Updated:
  • Version: 2.5.4
  • Size: 12.7 MB
  • Languages: English, Arabic, Danish, French, German, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish, Traditional Chinese
  • Developer:

Compatibility: Requires iOS 8.0 or later. Compatible with iPhone, iPad and iPod touch.

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