Last updated: 17 October 2026
Terms of Use
1. Agreement
By installing or using Trueflat ("the app") you agree to these terms. The app is provided by heyisoft. If you do not agree, please do not use it.
2. What the app is
Trueflat develops the flat pattern of sheet-metal parts from the dimensions you enter, taking sheet thickness into account, and gives you the result as a drawing, a DXF file, a 1:1 PDF, a hand layout guide and a material quote.
3. What the app is not
- Not a substitute for checking. Bend allowance, springback, kerf, weld gaps and seam allowances depend on your material, tools and process. Make and check the first part before you cut the rest.
- Not a printer calibration. A 1:1 print is only 1:1 if your printer prints at 100%; measure the check line on every print.
- Not a guarantee. Geometry is exact; sheets, machines and workshops are not.
4. Your responsibilities
You are responsible for the work you do with the patterns: verifying them against the job, following the standards that apply where you are, and working safely. Do not use the app anywhere that looking at a phone is not safe.
5. Free and Pro
Free, with no account and no ads: all fifty-nine shapes with their 3D view and flat pattern on screen, thickness handling, every unit setting, all twenty-one languages and every theme; plus saving, DXF, PDF, the layout guide and the quote for eight basic shapes, including the pipe tee.
Trueflat Pro opens saving, DXF, PDF, the layout guide, the quote and sharing for every shape.
6. Plans, renewal and cancelling
| Plan | Price (US) | Renews |
|---|---|---|
| Monthly | US$4.99 | Every month |
| Yearly | US$29.99 | Every year |
| Lifetime | US$69.99 | Never — one-time payment |
The price in your own currency is shown in the app before you confirm, and it is the one that applies. Where a free trial is offered it is shown on the same screen, it is granted once per store account, and the subscription starts when the trial ends unless you cancel before then.
Subscriptions renew automatically at the end of each period unless you cancel at least 24 hours before the period ends. Your account is charged for renewal within 24 hours of that point. You manage or cancel a subscription in your own store account — App Store → your name → Subscriptions on iOS, or Play Store → Payments & subscriptions on Android — not through us, and deleting the app does not cancel it. The lifetime purchase is a single payment and does not renew. Payment is taken and refunds are handled by Apple or Google under their own terms; we cannot issue a refund on their behalf.
Changing phones or reinstalling does not cost you anything: tap Restore on the Trueflat Pro screen while signed in to the same store account.
On iOS, Apple's standard Licensed Application End User License Agreement also applies.
7. Content and licences
The app, its drawings and its text belong to heyisoft. The dimensions you type, the projects you save and the files you export are yours.
8. Availability
The app runs offline and does not depend on a server. Checking a purchase does depend on Apple, Google and RevenueCat being reachable; when they are not, the app keeps working with the entitlement it last knew about.
9. Disclaimer and liability
The app is provided "as is", without warranty of any kind. To the fullest extent permitted by law, heyisoft is not liable for wasted material, rework, delay, loss of profit or any other loss arising from use of the app. Nothing here limits liability that cannot be limited by law.
10. Governing law
These terms are governed by the laws of the Republic of Türkiye, without prejudice to any mandatory consumer protection you have where you live.
11. Changes
If these terms change, the date at the top changes with them and the new version is published here before the app version that needs it ships.
12. Contact
heyisoft@gmail.com — or the contact page.