# How many uses does key license file have? **URL:** \ **Category:** Glyphs\ **Created:** [September 9, 2026, 3:40pm UTC](https://forum.glyphsapp.com/t/how-many-uses-does-key-license-file-have/37247 "2026-09-09T15:40:41Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![rafa.cruanyes](https://forum.glyphsapp.com/user_avatar/forum.glyphsapp.com/rafa.cruanyes/32/34452_2.png) [@rafa.cruanyes](https://forum.glyphsapp.com/u/rafa.cruanyes)\ **Post date:** [September 9, 2026, 3:40pm UTC](https://forum.glyphsapp.com/t/how-many-uses-does-key-license-file-have/37247/1 "2026-09-09T15:40:42Z")
Hello there! I’ve been using Glyphs 3 for almost 3 years now, and I’ve loved it so far, thanks to all the developers/team. My concern is, **can I use my license as many times as I want?** I tend to format my PC at least once a year. Every time I do this, I have to reinstall all the apps, and I’m worried my license key won’t work at any given time and having to pay it again _(which I’d do because this software is A-MA-ZING)_ I’ve already used it 3/4 times (in the same PC) and it hasn’t given any problem but I had this question and I don’t see why not asking it haha. Since I’m planning on updating to Glyphs 4, I guess the uses would “reset” if that makes sense. Still, **can I keep formating my PC without worrying about this?** Thank you in advance! ---
**Author:** ![FlorianPircher](https://forum.glyphsapp.com/user_avatar/forum.glyphsapp.com/florianpircher/32/30457_2.png) [@FlorianPircher](https://forum.glyphsapp.com/u/FlorianPircher)\ **Post date:** [September 9, 2026, 4:17pm UTC](https://forum.glyphsapp.com/t/how-many-uses-does-key-license-file-have/37247/2 "2026-09-09T16:17:34Z")
Generally, a license covers either - one user with multiple devices, or - one device with one user at a time but multiple users over time. Details: [EULA | Glyphs](https://glyphsapp.com/buy/eula) Formatting does not invalidate a license, you can continue using it.