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Pricing

Simple pricing. Every feature on every plan.

Use Tangibool free in your browser for as long as you like. Upgrade when you need more cloud projects, storage, or AI drafts. Viewers and commenters never cost a thing.

Free

For trying things out, learning, and personal rules.

$0forever

No card needed. Local projects are unlimited.

Start free
  • 3 cloud projects
  • 100 MB cloud storage
  • 30 AI drafts a month
  • 1 server job at a time
  • Starter team of up to 3 editors
  • Help docs

Every feature included.

Basic

For individuals who keep their rules in the cloud.

$9.99/ month

or $99 a year (save 17%)

Choose Basic
  • 25 cloud projects
  • 2 GB cloud storage
  • 300 AI drafts a month
  • 2 server jobs at a time
  • Starter team of up to 3 editors
  • Email support

Every feature included.

Team

For teams that write and review rules together.

$24.99per editor / month

or $249 per editor a year (save 17%)

Choose Team
  • Unlimited cloud projects
  • 20 GB storage per editor, pooled
  • 1,500 AI drafts per editor a month, pooled
  • 5 server jobs per editor
  • Any number of editors
  • Central billing and a team AI spending cap
  • Priority email support and onboarding

Viewers and commenters are free and unlimited.

Every feature, on every plan Unlimited viewers and commenters Unlimited local projects in your browser Nothing is ever deleted because of a plan

Prices are in US dollars and include VAT.

Compare plans

Plans differ only in limits, never in features

Exact checks, tests, algebra, version control, comments, lessons, and every export format are on every plan. What changes is how much you keep in the cloud and how much AI drafting you use.

Plan limits compared
LimitFreeBasicProTeam
Price a month$0$9.99$14.99$24.99 per editor
Price a year$0$99$149$249 per editor
Cloud projects325UnlimitedUnlimited
Cloud storage100 MB2 GB10 GB20 GB per editor, pooled
AI drafts a month303001,0001,500 per editor, pooled
Server jobs at once1255 per editor
EditorsUp to 3Up to 3Up to 3Any number
Viewers and commentersUnlimitedUnlimitedUnlimitedUnlimited
Local projects (in your browser)UnlimitedUnlimitedUnlimitedUnlimited
Every feature Yes Yes Yes Yes
SupportHelp docsEmailPriority emailPriority email and onboarding

Storage is measured in binary units (1 MB = 1,048,576 bytes). AI drafting is measured per calendar month (UTC); drafts that fail at the AI provider don’t count. AI reviews and paraphrases are fair use. Daily limits apply to prevent abuse.

Education

50% off Pro for students and teachers

Logic should be learned by doing. Verified students and teachers get half off the Pro plan, and all twelve guided lessons are open to everyone, with no account and no unlocking.

  1. Create a free account in the app.
  2. Go to Account → Plan & usage and send an education request. Tell us whether you’re a student or a teacher and where you study or teach.
  3. We review each request by hand, and you’ll see the decision there.

Teaching a whole class?

We can set up a school or class licence on the Team plan for the length of your course. Students who only read and comment are always free; only editors count towards the pooled limits.

Contact us about your course

FAQ

Billing questions

Is the Free plan really free?

Yes. You can use Tangibool in your browser without an account, and a free account adds three cloud projects and thirty AI drafts a month. You never need to enter payment details unless you choose a paid plan.

Who counts as an editor?

Anyone who can change logic, tests, libraries, or shared notes: owners, admins, and editors, plus anyone given direct editing access to a project. Viewers and commenters are free and unlimited on every plan, and nobody ever needs a second seat in the same team.

What is an AI draft?

One request to turn natural-language text into a proposed formula, glossary, and questions. Allowances reset each calendar month (UTC), and a draft that fails at the AI provider doesn’t use your allowance. AI reviews and paraphrases are fair use, and you can turn AI off entirely.

What happens if I reach a limit or downgrade?

Nothing is deleted. You can always read and export everything. Above your plan’s limits, Tangibool simply refuses new work that would add to them, such as a new cloud project, more storage, or another editor, until you upgrade or make room.

Can I cancel at any time?

Yes. Cancel from the billing portal in Account → Plan & usage. Your plan stays active until the end of the period you’ve paid for, then your account moves to the Free plan with all your work intact. If you’re a consumer, you can also cancel a new subscription within 14 days of buying it and get a refund, less any time you’ve used; the terms explain how.

What if a payment fails?

You keep your plan for a seven-day grace period while you update your payment method. The app shows a banner with the date the grace period ends and a button to fix it.

How does the Team plan bill for seats?

Team is billed per editor. The number of seats follows your team’s editors automatically, and storage, AI drafts, and server jobs scale with them as shared pools. Admins can set a team-wide cap on AI drafting.

Do you offer plans for larger organisations?

Not as a self-serve plan yet. If you need something the Team plan doesn’t cover, such as single sign-on or invoicing, contact us and we’ll talk it through.

Start free. Upgrade when you need the cloud.

Everything you need to check your first rule is already in the free version.