# Free Alternative to Soulver

Published January 1, 2026 · Updated August 10, 2026

The best free alternative to Soulver ($35) is Numi, which is open source. Install it with: `brew install --cask numi`.

## Best Free Alternatives to Soulver for Mac (2026)

Soulver has always been the Mac notepad calculator that feels like thinking on paper: type “15% of 490” or “$3k ÷ 5 people” and answers appear in a live column. In June 2026 the developer shipped Soulver 4—the first major paid generation in about seven years—with 50+ improvements, agent-friendly CLI hooks, and a universal Mac/iPhone/iPad app. Official pricing is a $59 one-time purchase with a 60-day free trial; Soulver 4 owners can upgrade for $29 (50% off). There is no forced subscription for the core app. Optional data services (broad stock coverage, Wolfram|Alpha queries) are paid add-ons.

Even at $59, some people want a free daily driver for unit conversions, tip math, and quick currency checks. Free and open-source options still cannot fully match Soulver's polish, multi-device iCloud sheets, or two decades of natural-language engine work. Numi remains the closest free-ish Mac calculator with natural language, though its update cadence is slower and the freemium edges matter. Raycast's free calculator extension covers quick conversions if you already live in a launcher. Terminal tools like Qalculate!, Fend, Insect, and Kalker are excellent for developers who prefer the shell. Apple Spotlight and the system Calculator app remain zero-install for simple arithmetic.

Honest gap: if you live in multi-line scenario planning with variables, subtotals, tags, and trip date math all day, Soulver 4 is still worth the one-time fee. Free alternatives win on price and scripting; they lose on the 'thinking document' experience. I re-verified Soulver's public site and documentation in August 2026 so the prices and Soulver 4 status below are not leftover Soulver 4 copy.

## Free alternatives

1. [Numi](https://bundl.run/apps/numi) — Calculator and converter application

   `brew install --cask numi`

## Verdict

Soulver 4 at $59 one-time (August 2026) remains the best notepad calculator if you live in multi-line financial thinking. Free alternatives—Numi, Raycast calculator, Qalculate!, and terminal tools—cover unit math and quick conversions without matching Soulver's sheets, tags, and iCloud multi-device story. Pay once if Soulver is core infrastructure; otherwise start free.

## FAQ

### How do I do currency conversions for free on a Mac?

You can use Apple's built-in Spotlight search for simple conversions. Just press Command-Space and type "100 USD in EUR". If you need to do multiple conversions at once or save the results, download a free app like Numi. Numi handles live currency rates and lets you type out full lists of conversions on a notepad interface.

### Is Numi completely free to use?

Numi operates on a freemium model. The core application is free to download and use indefinitely. You can do basic math, currency conversions, and variable assignments without paying. The developer occasionally locks advanced features or deep integration settings behind a paid license key. For basic Soulver-like usage, the free tier is perfectly fine.

### Can Raycast replace a dedicated calculator app?

Yes, for many people it absolutely can. Raycast has a very powerful natural language math engine built directly into the launcher. If you only ever do one calculation at a time, Raycast is faster and easier than opening a separate app. It fails when you need to write down multiple numbers and add them all together in a list.

### What is a notepad calculator anyway?

A notepad calculator blends a text editor with a math engine. Instead of pressing buttons on a grid, you type out your problems on separate lines. If you type "Cost = 50" on line one, and "Cost * 4" on line two, the app understands the connection. It lets you write out math exactly how you think about it.

### Why did Soulver 4 get so expensive?

The developers completely rewrote the application from the ground up for version 3. They moved away from older macOS frameworks and modernized the entire codebase. The price increase reflects the cost of maintaining a niche, high-quality native Mac application without resorting to a monthly subscription model. It is a one-time purchase, but $35 is still steep.

### How do I calculate percentages in regular Spotlight?

Spotlight handles percentages if you format them correctly. Press Command-Space and type "15% of 200". The answer will appear below the search bar. You can also type "200 - 15%" to quickly calculate a discount. It works reliably for single steps but cannot handle complex chains of percentage changes.

### Do any free Mac calculators support variables?

Yes, several free options support variables. Numi lets you declare variables natively in its text interface. Fend and Kalker both support variable assignment in the terminal. You just type "x = 10" and use "x" in your subsequent mathematical formulas. SpeedCrunch also has excellent variable management.

### Can I use these alternatives offline?

Most of the math features work perfectly offline. You can do algebra, percentages, and basic unit conversions without an internet connection. Currency conversions will fail or use outdated data if you are offline. Apps like Numi and Raycast cache the last known exchange rates, but they need an active connection to fetch current market data.

### Which free calculator handles time zone math?

Raycast is currently the best free tool for time zone math. You can open the launcher and type "9am PST in Tokyo" or "time in London". It parses the locations and gives you the exact local time instantly. Numi also handles basic time math, but Raycast's location database is much more reliable.

### Is there an open-source alternative to Soulver?

Qalculate! is the most powerful open-source alternative. It is completely free and the code is available for anyone to audit. It does not have the pretty macOS interface that Soulver has, but the underlying math engine is vastly superior. Fend and Kalker are also excellent open-source projects for terminal users.

## Sources

- [Soulver Official Site](https://soulver.app/)
- [Soulver Documentation / FAQ](https://documentation.soulver.app/)
- [9to5Mac: Soulver 4](https://9to5mac.com/2026/06/25/soulver-4-brings-50-improvements-new-workflows-and-an-agent-friendly-cli/)
- [Numi](https://numi.app/)
- [Numi on GitHub](https://github.com/nikolaeu/numi)
- [Qalculate!](https://qalculate.github.io/)
- [Raycast](https://www.raycast.com/)
- [Fend](https://printfn.github.io/fend/)

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