雲 Kumo

Keep your emulator files in sync — automatically, across all your devices.

Automatic Sync

Save files are uploaded to the cloud the moment you stop playing. Download happens on your next session — no manual steps required.

15 Supported Emulators

RetroArch, melonDS, Dolphin, PPSSPP, AetherSX2, DuckStation, Citra, Redream, Flycast, Mupen64Plus FZ and more. Add your own custom emulators too.

Conflict Resolution

Kumo detects when both a local and remote file have changed independently and creates a timestamped conflict copy instead of silently overwriting.

Linux Client

A Python daemon mirrors the same sync logic for RetroArch on Linux — works on Batocera, KNULLI, Lakka, and generic desktop setups.

Regional Storage

Your saves are stored on servers closest to you — EU, US, Asia-Pacific, or South America — for the lowest possible latency.

Flexible Storage Plans

Start with a free trial, then pick your storage with a simple slider — from 100 MB to 100 GB. Transfer is always 5× your storage. Manage billing directly from the app.

WARNING

This is an alpha version. Things may break, and behavior may change between releases.

Supported emulators

See the full compatibility list and sync categories in Supported Emulators.