// Download
Latest release v1.0.3 · 9/14/2026
Optimo for iPhone and Android compresses photos and videos straight from your library — on-device, no uploads, no account, free.
sha256 a3882091be0cc00803d4b5116fc90d678c6cd3e80f8ac7f541a8f4fe03a23798
sha256 48c19cecc1f0136e92228fac51ca30c094fb890e5519c37b2b71e29d4365ee6c
sha256 3fe1df94d7f2f4874a998ee00a4ecf1311606193e79330dadd10595bb09999a7
sha256 7d7a6bec2aced86a9842418b943d9ce6bf1dabe6d5402b10c418bd918adc338d
sha256 464e2ca93f09d226e306eb99208587f5fca8eb6d81d7b8010a29477571a8c6bd
To check a download arrived intact, hash it and compare with its line above:
shasum -a 256 <file> on macOS or Linux,
Get-FileHash <file> in Windows PowerShell. GitHub computes
these hashes itself when each file is uploaded.
Optimo is signed with a Developer ID and notarized by Apple, so it opens with no security warning. Open the .dmg, drag Optimo into Applications, then eject the disk image and launch it from Applications.
Ejecting matters: if you run Optimo from the mounted image, macOS starts a temporary read-only copy and your settings and updates won't stick.
SmartScreen shows "Windows protected your PC" because the Windows build isn't code-signed yet (a certificate is on the roadmap). Click More info → Run anyway.
Make the AppImage executable, then run it:
chmod +x Optimo-*.AppImage
./Optimo-*.AppImagesudo dpkg -i Optimo_*.debIn Optimo, open Settings → Diagnostics → Copy diagnostics, then paste the result into the support form. It captures your version and the recent app log with file paths removed, which usually identifies the problem straight away.
It goes on your clipboard, not to us — nothing is sent until you paste it.
All previous releases live in the releases archive ↗.