Upload the sheet and describe the calculation. People use the tool without seeing or breaking your formulas.
Your calculation as a tool. Same answer every time.
€29/month
For one person. Excl. VAT. Cancel anytime.
14 days free, then €29/month. Card required; cancel before day 14 and you won't be charged.
Not ready to add a card? Start free (3 builds a month).
How it works
Upload the sheet and describe the calculation
Iduno reads the column names and a masked example row, not your formulas, and builds the calculation from your description.
We check it runs before you get it
Iduno builds the tool and opens it to check that it runs. For calculations, add your own examples (this input gives this answer) and the tool has to pass them.
Share it
Send it to a colleague or client by email. They use it with a free account; only you can change it.
Spreadsheets that work better as tools
Sales
A commission sheet: deal value and rate tiers in, payout out.
Finance
A loan or lease schedule from amount, rate and term.
Operations
A shift cost sheet: hours, rates and overtime per person.
Consultant
A quote sheet your clients fill in themselves.
Event planner
A budget per guest with fixed and variable costs.
Frequently asked
Does it lock the formulas inside my Excel file?
No. Iduno doesn't change your file and doesn't read its formulas. It builds a new tool from your description and the sheet's columns, and your spreadsheet stays as it is. If your calculation changes, update the tool by saying what's different.
Can the people I share it with change the calculation?
No. They enter their numbers and get the answer. Only you can change your tool.
How does the trial work?
Start the 14-day trial with a card. Cancel before day 14 and you won't be charged. After that it's €29 a month, excl. VAT, and you can cancel anytime. Rather not add a card? The free plan gives you 3 builds a month.
What happens to my data?
Tools run in your browser and can't send your data to third parties — a technical barrier (CSP), not a promise. When data needs to be shared — for AI analysis or with systems you've connected — it only happens by your choice, via EU servers, and we never store the content.
Do I need to code?
No. You describe what you want in plain words and Iduno builds the tool. To change it, say what should be different. Earlier versions are kept.