Your Mac already owns the
fastest storage it will ever have.
It’s your RAM. Every read and write your CPU makes goes through it, and it’s hundreds of times faster than even the quickest SSD. A RAMDisk simply borrows a portion of that memory and mounts it as an ordinary volume in Finder — so any app can use it like a regular drive, only blisteringly fast.
Figures are representative of typical hardware; your numbers depend on your Mac and workload.
RAM is volatile. Pull the power and it’s gone.
That single fact is why most people never touch RAMDisks — one crash, one unmount, one reboot and the data evaporates. Persist exists to remove that risk entirely. Here’s how. ↓
Speed you can keep.
We solved the volatility problem.
Other RAMDisk tools hand you a fast volume and walk away. Persist treats persistence as the whole point — your data flows to and from real storage automatically, so a RAMDisk feels exactly like a normal folder that just happens to be lightning fast.
Create a RAMDisk from any folder
Drag a folder onto the app and it spins up a RAMDisk pre-loaded with that folder’s contents. Your project caches, build folders, or scratch space are instantly fast — with zero migration.
- Drop-to-seed in one gesture
- Size is suggested from the folder automatically
- Works with the folder you already use day-to-day
Save to disk on unmount
Work entirely in RAM, then eject. Persist syncs everything back to a real folder before the volume disappears — powered by a bundled rclone engine that only moves what changed.
- Your files live on disk between sessions
- Nothing to remember — it happens on unmount and quit
Incremental backups
You can configure Persist to run incremental backups at the frequency of your choosing — so data loss from a kernel panic, forced halt, or any other incident has limited impact.
- Incremental backups on a schedule you set
- Survives kernel panics, forced halts & crashes
Integral coherent backup on unload
Every time you unmount a synchronised volume, Persist lists every application still touching it — and hands you the call. Nothing is written until the volume is truly idle, so the backup you get is whole, not a half-finished snapshot.
- Kill the apps now, or keep working if you need more time
- Once they’re all closed, a complete backup is made to disk
- Beyond safe — your data lands coherent, never mid-write
One app, a hundred fast corners of your workflow.
Developers
Park the folders your tools hammer all day in RAM and watch the wait disappear.
Creative pros
Give your editor and renderer a scratch disk that never bottlenecks the timeline.
Power users
A blazing, ephemeral workspace for anything temporary — that vanishes when you want it to.
The small, careful details.
Buy it once. Keep it forever.
No subscription, no account, no upsell. Try every feature free for two weeks.