Soulver 4

Soulver 4

Notepad, meet calculator.

429 ratings
240 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • May 3, 2020
  • September 14, 2026

Features

Soulver 4 screenshot #1 for iPhone
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Soulver 4 screenshot #8 for iPhone
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About

This app combines the functionality of a notepad with a powerful calculator. It allows users to perform complex calculations using natural language, supports unit conversions, date math, and live currency conversions. Organize your calculations in sheets with text comments and share them as PDFs.

Natural language calculations
Unit and currency conversions
Date and time math
Live currency and stock prices
Customizable accessory keyboards
Spreadsheet-like line references
Variables and conditional statements
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What users say

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What's New in Soulver 4

4.0.3

September 14, 2026

GENERAL NUMBER PAD – Improved trackpad performance when moving the cursor (hold down the "2" key) – The number pad on iPhone is now the same height as the system keyboard, so switching between them is smoother – Modernized the appearance of key popovers for iOS 26 & 27 – Fixed the cursor scrolling behind the keyboard switcher (thanks Conlan) SETTINGS – Settings are reorganized to match the Mac, with new General and Behavior panes – Styling can override the system appearance (light/dark mode), and reset the text colors to their defaults – Behavior sets what tapping an answer copies: the answer, the expression & answer, or the unformatted one – The keyboard switcher can keep its place at the bottom of the number pad, or float above the keyboard — Apple no longer allows it at the bottom of the system keyboard – Fixed editing the work hours field on iPad, which now has a stepper (thanks Michael) – The “open a new sheet on launch” setting now waits for 10 minutes away, and works the same however you return SYNC – iCloud sync is now a single toggle, rather than a choice of storage location – You can enable iCloud syncing for a sheetbook you selected manually, matching the Mac – The sync console now shows the state of iCloud and both copies of your sheetbook, beside the log BACKUPS – The backups view shows how much space backups use, with an option to delete them all – The backups folder is now capped, so it can’t grow to gigabytes over time (thanks Gurudas) EDITOR – The floating total is now a Liquid Glass capsule, and readable by VoiceOver – Long line-reference titles truncate instead of overflowing behind the answer column – Fixed line height in Thai, Arabic, Hebrew and Devanagari sheets (thanks Suppasit) – Fixed pasting emoji copied from another line in Soulver (thanks Seth) – Fixed an unwanted space when pasting a number after a currency symbol (thanks Bruce) – Fixed the cursor ending up in the wrong place after an undo CALCULATOR INFLATION – Inflation calculations in 5 more currencies: EUR, AUD, GBP, CAD and JPY – The latest monthly figures now update from the web, not only with app updates – Month-by-month inflation in the current year — $100 from January worth today → $102.66 PLACES & TIME ZONES – Time zone, weather & distance calculations work for any place on Earth, via the internet – More time zone syntaxes: time in Tokyo when it is 9am in London → 5:00 pm, and Monday 9am Delhi in nyc → 11:30 pm – Typing an ISO date like 2026-09-13 no longer reformats it under the cursor UNITS – Dividing a money rate by a time amount: $500/month / 30 days → $16.67/day – Imperial lengths now multiply to imperial units: 10 ft x 12 ft x 6 in → 60 ft³ – Added the aliases “sq ft”, “sq in”, “sq yd” and “sq mi” – A cast specifier forces one unit to be another rather than converting — 5 km cast miles → 5 mi INCOME & SALES TAX – Income tax infers the country from the currency: income tax on $50k CAD is taxed in Canada – Income tax works on a salary written as a rate: income tax on 4,000 AUD/month → $512.33/month – Fixed VAT on 100 having no answer without a currency symbol LUNAR CALCULATIONS – Moon phase is computed on device, needing no web access — moon phase → Waxing Gibbous – Fixed a lunar day calculation needing an edit to update when the day changed MULTIPLIERS – A multiplier like 1.8x is a value you can type & assign — Speed = 1.8x, then 59 min at Speed → 32 min 46 s CULTURAL EVENTS – Hanukkah is now a date Soulver knows — Hanukkah 2026 → 4 December (thanks Glenn) PERCENTAGES – Percentages can be expressed as “1 in x” ratios — 1 in 20 as % → 5%, and 40% is 1 in what → 1/2.5 VARIABLES – Superscripts work with variables (r = 5, then r² → 25) – Variable names may contain parentheses LANGUAGES – Fixed number words like 1 million & 5.5 billion not being recognized in Chinese, Japanese & Korean (thanks Yoshihiko) – Fixed trips counting in nights not working in German, French, Russian and Chinese

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Subscription plans

AI Assistant, Stocks & Weather

Wolfram|Alpha & advanced stock & weather data

$26.001 Year
Price Updates
September 9, 2026$26.00
October 2, 2025$30.00
April 15, 2025$26.00
How to cancel Soulver 4 subscription ⁉️
13

In-App Purchases

Free

Complementary Upgrade

A free upgrade for recent purchasers

User reviews

Nice

I was a user for many years. It is a nice app, but I don’t use it enough for the cost of $40 to $60 per year for a subscription that I don’t much. I originally was also sadden that nothing was done for the longtime users when you switched to subscription format. Now I see something and tried to download it but all I got nowhere. Deleted it again. No help at all from developers in all this time.
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Simply the best of its kind!

After all these years, Soulver keeps getting better and better. Version 4 is now universal! Thank you, dev!

Vom Test der Version 4 enttäuscht

Ich habe zum Beispiel die Inflationsberechnung mit Euro und Dollar ausprobiert. Das Ergebnis: Dollar und Euro unterscheiden sich nicht in Bezug auf den Wert, auch nicht über einen Zeitraum von 24 Jahren. 😉

Dann habe ich mit deutschen Orten das Wetter oder die Entfernung zwischen ihnen getestet. Wenn es sich nicht gerade um München oder Berlin handelt, erkennt Soulver die Städte nicht. Ich frage mich wirklich, welchen Vorteil Soulver in Zeiten von KI noch bietet.

Überhaupt sieht es so aus, dass Soulver mit der deutschen Sprache weit aus schlechter zurechtkommt, als mit der englischen. Aber das ist erst mal nur ein Bauchgefühl.

Natürlich ist die App umfangreich, aber ist diese besser als der Kostenlosmodus einer KI?

Ich möchte jetzt nicht nur einen Stern geben, denn natürlich steckt in dem Programm eine Menge tolle Sachen drin. Aber ich möchte zum Nachdenken anregen.
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Impressed

Great app.Much improved,especially impressed with customer support

Preispolitik!

Soulver ist ein super Tool, gar keine Frage. Ich stolpere aber darüber, dass ich als jemand, der für 35€ das „Upgrade“ von Soulver 3 auf Soulver 4 erworben hat, nicht eine einzige Aktie anlegen kann, auch kein Zugriff auf Livewetter erhält, wenn man nicht zusätzlich(!) ein Abo über 29€/Jahr abschliesst. Akzeptieren kann ich das ihr für AI Features ein Abo eingebaut habt. Alles gut. Aber weiteres Geld für Aktienübersicht und Wetter, das nenne das gierig!
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Response from developer

Das ist eine unfreundliche 1-Stern-Bewertung: Wir bieten Kursdaten als optionales Abo an, damit nur Nutzer, die diese Daten benötigen, ein Abo abschließen, während alle anderen beim einmaligen Kauf bleiben können. Für uns sind die fortlaufenden Kosten für diesen Service ein laufender Aufwand, daher ist das Abo erforderlich. Wetter ist für alle direkt ab Werk verfügbar.

User experience

🐞

Reported Bugs

3 issues

Crashes when using certain emojis in sheet titles

Bug

Issues with iCloud sync and data migration from older versions

Bug

Inconsistent behavior when modifying variables and formulas

Bug

Requested Features

4 requests

Improved iPad and iPhone UI/UX

Feature

Enhanced data export and sharing options

Feature

More advanced mathematical and scientific functions

Feature

Ability to define custom units and unit conversions

Feature

FAQ

What does Soulver 3 do?

Soulver 3 is a notepad calculator designed to simplify everyday math problems. It supports natural language functions for calculations, unit conversions, date and time math, and live currency conversions. You can also organize your calculations in sheets with text comments and share them as PDFs.

What are the key features of Soulver 3?

Key features include natural language calculations, over 300 unit conversions, live currency and stock price conversions, date and time math, business day calculations, and customizable accessory keyboards. It also offers spreadsheet-like line references, variables, and conditional statements for advanced workflows.

How much does Soulver 3 cost?

Soulver 3 is a one-time purchase and is not a subscription. This is the first paid version for iPad and iPhone since the original release in 2009.

Is Soulver 3 compatible with older versions?

Yes, you can import your Soulver 2 files by tapping the '+' button and selecting them from Files. iCloud syncing is also available with Soulver 3 for Mac.

What are some common use cases for Soulver 3?

Common use cases include calculating discounts, converting units for cooking or DIY projects, planning travel with date and time math, managing personal finances with financial functions, and working with video time codes. The natural language input makes it easy to handle a wide range of everyday calculations.