Soulver 4

Notepad, meet calculator.

Free · In‑App Purchases

Soulver is ready for iPhone Duo. Ever reach for a calculator and the back of an envelope to work something out? That's what Soulver is for. It's a natural-language notepad calculator: think through a problem line-by-line, using plain words and numbers. The answers appear alongside each line as you type. Soulver isn't just a calculator app — it's the paper you'd scribble on to figure something out. Except this paper does the numbers for you, so you stay thinking at the level of your problem. 20% of $1,480 | $296 $100 in EUR | €86 240 km in miles | 149 mi $1,200 + 15% tax | $1,380 3 weeks from today | June 21 Because Soulver uses sheets (like Notes), you can explore different ideas: weigh options, change variables and watch everything update. WHAT CAN SOULVER CALCULATE? – Live currency conversions — 190 currencies, including crypto – Percentages in plain language — "20% off $50", "$50 is what % of $200" – Unit conversions — hundreds of units across length, weight, volume, data and more – Dates & time — "days until Christmas", time intervals, clock and video-timecode math – Time-zone conversions — "3pm New York to London" – Sums & averages – Financial functions — compound interest, mortgage repayments, hourly rates It's the closest thing to an on-device universal calculator ever created. DESIGNED FOR IPHONE – A meticulously designed numeric keyboard that makes calculating fast – Six specialised accessory keyboards — for currencies, percentages, dates & times, and variables – Build your own custom keyboard with the buttons you reach for most BEST-IN-CLASS ON IPAD – Multiple windows, Slide Over & Split View — float Soulver alongside Notes or Safari – Full Magic Keyboard support with dozens of keyboard shortcuts – Scribble & Apple Pencil – Find & replace, a line-styling palette and a powerful text editor – Automation with URL schemes & Siri Shortcuts POWER USER FEATURES – Multi-word variables — "total cost = $750" – Inline tokenized references to previous answers – Subtotals, tags & trip planning – Wolfram|Alpha integration – Headings, comments, labels & dividers to structure long sheets – Custom units and global variables in the definition sheet SHARING & SYNC – Sync your sheets with Soulver 4 for Mac via iCloud – Export to PDF & plain text, or send beautiful HTML emails – Share a calculation as an image — just take a screenshot ONE TIME PURCHASE Soulver is a one-time (non-subscription) purchase. We've been refining and improving Soulver since 2005, and major paid updates average once every 7 years. Try it free for 60 days, no commitment, no automatic charge. —————————————————————————————— Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

  • 4.9
    out of 5
    436 Ratings

GENERAL IPHONE DUO – Soulver is made for iPhone Duo – Designed a special number keyboard for Duo in the unfolded pose, with additional accessory keys on the left side and the number pad on the right side – The keyboard automatically splits when in the partially open pose – The answer column automatically aligns along the crease in the partially open pose EXPORT & SHARING – Print, PDF and Email always go through the styling options first, including ⌘P from a keyboard – Improved the layout of the styling options preview EXTERNAL DOCUMENTS (.SLVR FILES) – The title menu now lets you import the file to the open sheetbook, copy the text with answers, and customise PDF, print & email export BUG FIXES – Fixed an issue where the close button was hidden when editing external documents on iOS 26 (thanks David on Mastodon) – Fixed an issue where pushing changes to iCloud could be delayed after making an edit and immediately going to the Home Screen, until reopening the app. The sync now happens in the background even when Soulver is dismissed (thanks Michael) – Fixed an issue where line numbers could be misaligned when using quite large accessibility text sizes CALCULATOR GROWTH & CHANGE – Added a phrase to calculate the time required to reach a multiple or double/triple: time to 2x at 7% → 10.24 years, time to double at 12% → 6.12 years – Support for a growth over a period phrase: years from $100 to $200 at 7% growth every year → 10.24 years DATES & TIMES – Durations in the form “xh:xm” are now supported: 1h:17m → 1 hour 17 min, 1h:17:30 → 1 hour 17 min 30 s, 1:17s → 1 min 17 s – Support for “my time” and “local time” meaning your current device time zone: 4pm EST in local time UNITS – Added the long tons unit: 3 long tons in kg → 3,048.14 kg (thanks Sergiy)

The developer, Zac Cohan, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Diagnostics

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

The developer has not yet indicated which accessibility features this app supports. Learn More

Seller
Zac Cohan
Size
42 MB
Category
Productivity
Compatibility
Requires iOS 17.6 or later.
  • iPhone
    Requires iOS 17.6 or later.
  • iPad
    Requires iPadOS 17.6 or later.
  • Mac
    Requires macOS 14.6 or later.
  • Apple Vision
    Requires visionOS 1.3 or later.
Languages
English and 8 more
  • English, French, German, Italian, Japanese, Korean, Russian, Simplified Chinese, Spanish
Age Rating
4+
In-App Purchases
Yes
  • 60-day free trial (for Mac) $0.00
  • Soulver 3 for Mac $39.00
  • Soulver 3 for iPhone $14.00
  • Soulver 4 (Upgrade from Soulver 3) $29.00
  • Soulver 3 for iPad $20.00
  • AI Assistant, Stocks & Weather $26.00
  • Soulver 4 $54.00
  • Soulver 4 $59.00
  • Soulver 4 for iPhone $15.00
  • 60-day free trial (for iPad) $0.00
Copyright
© 2026, Acqualia Software OÜ