The quick brown fox jumps over the lazy dog
Aptos vs Segoe UI
Two Microsoft system fonts by the same designer, Steve Matteson. Segoe UI has been the humanist face of Windows since Vista, while Aptos is the neo-grotesque that replaced Calibri as the Microsoft 365 default in 2023 — rounder, warmer forms on one side, a cooler Swiss-inspired tone on the other.
Aptos is a commercial font, so it is shown here in Inter, its closest free alternative. All free alternatives to Aptos → Segoe UI is a commercial font, so it is shown here in Open Sans, its closest free alternative. All free alternatives to Segoe UI →
The quick brown fox jumps over the lazy dog
- Segoe UI is a humanist sans-serif with rounder letters than Tahoma, tuned for ClearType and low-resolution screens, and it drew a Linotype challenge over its resemblance to Frutiger.
- Aptos is a neo-grotesque based on mid-century Swiss faces, with Helvetica-style stroke endings and a few humanist touches like the swung R and double-storey g.
- Segoe UI ships as a system font with Windows and gained a variable version in Windows 11, whereas Aptos comes as six static weights with italics plus Display, Narrow, Mono, Serif, and Slab companions.
- Both are proprietary: Segoe UI is licensed to Microsoft from Monotype and bundled with Windows, while Aptos is delivered to Microsoft 365 subscribers and via Microsoft's Download Center, so neither is a free web-embedding option and licensing is a real cost factor outside those ecosystems.
Aptos
Reach for Aptos when you want a neutral, Helvetica-adjacent document voice that matches current Word, Excel, and PowerPoint defaults.
Segoe UI
Reach for Segoe UI when you are building Windows-native interfaces and want the warmer humanist forms users already see across the OS.