Every app store screenshot size, in pixels
Checked against Apple's and Google's documentation. Each page has the exact numbers and a free resizer.
App Store
- iPhone 6.9" screenshot size1320 × 2868 · required
- iPhone 6.5" screenshot size1284 × 2778
- iPad 13" screenshot size2064 × 2752 · required
Google Play
- Google Play phone screenshot size1080 × 1920 · required
- Google Play 7" tablet screenshot size1200 × 1920
- Google Play 10" tablet screenshot size1600 × 2560