Soulver Review (2026): Pricing, Features & Honest Verdict

TLDR

Soulver is a notepad calculator for Mac, iPad and iPhone that lets you mix words and numbers and shows the answer on every line. Twenty years old, still the best in its category, and Apple-only. Best for: anyone who runs numbers in a scratchpad all day. Price: $59 one-time, 60-day free trial. Rating: 7.7/10

What is Soulver?

Soulver is a text editor that calculates. You type a line like “lunch was $55 + 25% tip” and the answer appears in a column on the right. Type “monthly rent = $2.5k” on one line and reference that variable ten lines later. Start a new line with a plus sign and Soulver automatically references the line above. It handles currencies with live rates, dates and time zones, hundreds of units and functions, percentages, subtotals and inline Wolfram Alpha queries. It is not a spreadsheet and it is not a calculator. It sits in the gap between them, where most everyday numerical thinking actually happens.

The app is made by Zac Cohan, an independent developer who invented the modern notepad calculator interface, the answer column, back in 2005. Twenty years of refinement later, Soulver 4 shipped in June 2026 as the biggest update in seven years: more than 50 improvements, a trip planning workflow for multi-stage itineraries, a tags system for labelling and analysing lines with hashtags, a dedicated definition sheet for global variables and custom units, and an agent-friendly command line interface. Notably, Soulver does not use AI. Everything runs on SoulverCore, an on-device natural language engine that is effectively a high-level programming language with a syntax you never have to think about.

What Are Soulver’s Key Features?

The answer column and line references

Every line you type gets an answer beside it, and every answer stays live. Change the number on line 3 and everything downstream updates. Line references let you write “line1 + materials $240” and get a running result, so a quote, a budget or a renovation estimate stays readable as English rather than collapsing into cell coordinates. Double-click a blank line beneath a block and Soulver drops in a subtotal. This sounds small. It is the reason people describe Soulver as the app they cannot work without. We dug into how it handles a real estimate: airfares times two, hotel times four nights, meals times four days, then a total that recalculates the moment you change the nights. In a calculator you would restart. In a spreadsheet you would spend three minutes on layout before typing a number.

Natural language units, dates and currencies

Soulver recognises currencies, units, dates and everyday phrasing without special syntax. “$3,400 + 10% sales tax” works. “food = $50 per day x 30 days” works. Date maths, duration and interval calculations, time zone conversions, inflation tracking, bandwidth maths and distance conversions all work out of the box. Soulver 4 added specific workflows for splitting restaurant bills and planning trips, which sound like gimmicks until you use them once and realise you were doing that maths in your head badly. The parser is forgiving without being vague: if it cannot read a line it leaves it as plain text rather than guessing, and markdown headings, labels and four comment styles let you deliberately hide numbers you do not want evaluated.

Variables, tags and definition sheets

You can define variables locally on a sheet or globally in Soulver’s settings so they work across every sheet you own. Soulver 4 added a definition sheet for global variables and custom units, plus a tags workflow where hashtags let you label lines and total them by category. That turns a scratchpad into something closer to lightweight bookkeeping: tag every line as #travel or #tools and get instant per-tag totals without building a spreadsheet.

Live data and native performance

Soulver fetches live and historical currency rates, stock prices and global weather, and you can query Wolfram Alpha inline. The app is a genuinely native Mac app, an 18 MB download that launches instantly and uses very little memory, at a time when most desktop software is a browser in a costume. It exports to plain text, PDF and HTML. There is no account, no sync service to pay for and no cloud dependency for the core calculation engine. Soulver 4 also added a command line interface aimed at scripts and AI agents, which is a quietly useful addition if you want to pipe calculations through automation rather than typing them.

How Much Does Soulver Cost?

Soulver costs $59 as a one-time purchase, and that single purchase covers Mac, iPad and iPhone. There is no subscription. If you only want the iPhone app, it is $15 on its own. Existing Soulver 3 owners can upgrade to Soulver 4 at 50 percent off on the App Store, so roughly $29. There is a 60-day free trial with no account required, and when the trial ends you are not charged anything: the app drops into a read-only mode where you can still browse and export your existing sheets but cannot create or edit new ones.

Soulver is also bundled in Setapp at $15 per month, which includes 260-plus other Mac apps. If you already pay for Setapp, Soulver is free to you and this whole pricing conversation is moot. If you do not, four months of Setapp costs more than owning Soulver outright, so the direct purchase is the better deal for a single app.

Against alternatives, $59 is the premium end of a cheap category. Calca is $9.99 on the Mac App Store. Parsify has a free tier limited to five evaluated lines and a full lifetime licence at 30 euros plus VAT. Numi has a free single-note tier and a paid one-time licence covering two devices. So you are paying roughly two to six times the going rate. What you get for it is the most polished natural language parser on Apple platforms, native apps on all three Apple devices from one purchase, free updates between major releases and a developer who has stayed with the product for two decades. Twenty years of updates is a reasonable proxy for whether the app will still exist in five more. Requirements are macOS 14 Sonoma or newer and iOS or iPadOS 17 or later.

Who is Soulver Best For?

Use Soulver if you do quick multi-step maths constantly and keep losing your place in a calculator app. Freelancers pricing work, founders modelling runway on the back of an envelope, contractors estimating jobs, anyone splitting bills, converting currencies while travelling or sanity-checking a quote. It is at its best when the numbers need words around them to make sense in a week’s time.

• Freelancers and consultants building quotes and estimates line by line
• Founders doing quick runway, pricing and unit economics maths
• Developers converting units, bandwidth, durations and timestamps
• Anyone who currently opens a spreadsheet for a five line calculation

Skip Soulver if you are not on Apple hardware. There is no Windows version, no Linux version and no web app, and that is a hard stop for a lot of people. Skip it if your work is genuinely tabular, with columns of data and formulas across rows, because that is a spreadsheet’s job and Soulver does not pretend otherwise. Skip it if you need collaboration, since sheets are yours alone with no real-time sharing or comments. And skip it if $59 up front is a barrier when Calca at $9.99 or Parsify’s free tier would cover your actual use. Try the 60-day trial first. Two months is more than enough to know whether it becomes a daily habit or an unused icon.

Best Soulver Alternatives

Numi

Numi is the most direct Soulver alternative on the Mac and the lightest one. Same natural language idea, cleaner and simpler interface, and it handles the everyday cases like “5 km in miles” or “today + 2 weeks” perfectly well. It has a free tier limited to a single note and a paid one-time licence covering two devices, though the price is not published on its download page. Numi is Mac-only and does less than Soulver on units, live data and workflows. Choose Numi if you want the concept without the price tag.

Calca

Calca costs $9.99 on the Mac App Store and goes further than Soulver into real mathematics: symbolic algebra, equation solving, matrices, calculus, plotting and Markdown documents. If you are an engineer or a student who needs to solve for x rather than add up expenses, Calca is the better tool and it is a sixth of the price. The catch is the interface, which reviewers regularly call rough, and a development pace that has slowed considerably. Choose Calca for symbolic maths on a budget.

Parsify

Parsify is the cross-platform answer, running on macOS, Windows and Linux. It has instant answers, variables, units, 200-plus fiat and crypto currencies with hourly rates, calendar and time zone operations, and a plugin system for extending it yourself. The free tier caps you at five evaluated lines and the full lifetime licence is 30 euros plus VAT. There is no mobile version yet. Choose Parsify if you work across Windows and Mac and cannot justify an Apple-only tool.

Final Verdict: Is Soulver Worth It?

Soulver earns a 7.7. It is the best product in its category by a clear margin, and the 2026 release proved the developer is still pushing it forward rather than coasting on a twenty year lead. The one-time $59 price covering three platforms, with free updates between major versions and no subscription, is increasingly rare and worth supporting. The 60-day trial with a read-only fallback instead of a surprise charge is exactly how software should be sold.

The score is held down by scope rather than quality. Apple-only rules out a large share of people who would otherwise love it. There is no collaboration. And $59 is a real premium in a category where a $9.99 competitor and a free tier both exist. If you live on a Mac and find yourself calculating things dozens of times a day, buy it and you will not think about the price again. If you are curious but not sure, take the two month trial. If you are on Windows, look at Parsify instead.