Download

RPL Engine Workbench for macOS.

Native Apple silicon app. Signed by Rocket Propulsion Laboratory LLC and notarized by Apple, so it opens with no Gatekeeper warnings. Start with a built-in trial — no license key required — then enter a license key in the app to unlock your plan.

Latest release · version 1.0.0

Download for Apple silicon Mac

Universal disk image (.dmg) · about 39 MB · arm64 (Apple silicon).

Download Mac trial

Built-in trial · no license key required · see plans & pricing

How it works

Trial first, license when ready.

Download the Mac appCurrent public platform is Apple silicon Mac.
Open trial modeNo license key is required to start.
Run preliminary casesUse sample cases or your own early design-review cases.
Buy a licensePaid licenses unlock the purchased Basic, Pro, or Team tier.
ActivatePaste or activate the license key from your purchase email.

Install

Three steps.

1. Open the disk image

Double-click the downloaded .dmg. Because the app is notarized by Apple, it opens directly — no right-click “Open anyway” and no security override needed.

2. Drag to Applications

Drag RPL Engine Workbench onto the Applications folder shown in the window, then launch it from Applications or Spotlight.

3. Trial or activate

It starts in built-in trial mode. Bought a plan? Open Tools → License..., click Activate license..., and paste the license key from your purchase email.

Requirements & integrity

What you need, and how to verify the download.

PlatformApple silicon Mac (M1, M2, M3, M4…). Intel Macs are not supported.
Operating systemA current macOS release is recommended.
SigningDeveloper ID Application: Rocket Propulsion Laboratory LLC (Team 5GA69JA4RL)
NotarizationNotarized by Apple and stapled (verifiable offline)
Version1.0.0
Size~39 MB (40,367,528 bytes)
SHA-256960958445dd7c1ed8cc951a35a49906affd608e92e7e37bdc009cb492a44cce9

Verify the download in Terminal: shasum -a 256 "RPL Engine Workbench 1.0.0.dmg" — the value must match the SHA-256 above. Confirm the signature with codesign -dvvv and Gatekeeper with spctl -a -t open.

Trial & licensing

The trial is time-limited and feature-limited (watermarked PDF, no DXF/VTK export, reduced solve/mesh limits, one steady-state Flowfield solve per launch). A purchased license unlocks the plan you bought. RPL Engine Workbench is preliminary engineering software; it does not replace qualified engineering judgment, testing, safety review, or export-control compliance. See the License FAQ.