Feature comparison
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The current User's Guide is very much a work in progress, any help would be greatly appreciated! |
This page provides a side-by-side feature comparison of OpenRocket, version 23.09, and RockSim, version 10.5.
While hosted on the OpenRocket wiki site, we have attempted to make this an objective comparison between the functionality of the two software products. If you think something is wrong or omitted, please contact us.
General[edit]
| OpenRocket | RockSim | |
|---|---|---|
| License | Open Source (GPLv3) | Proprietary |
| Price | Free | $124 |
| Supported platforms | Windows, Mac, Linux | Windows, Mac |
| Supported file formats | ORK, RKT, CDX1 | RKT |
| Anti-piracy copy protection | None | PACE |
UI features[edit]
| OpenRocket | RockSim | |
|---|---|---|
| Side/back view | Yes | Yes |
| 3D view | Yes | Yes |
| Photorealistic 3D rendering | Yes | No |
| Export 3D design | Yes (OBJ) | Yes (3DS) |
| Design view rotation | Any angle | Side and top only |
| Live CG/CP view | Yes | Yes |
| Realtime simulation | Yes | No |
Design features[edit]
| OpenRocket | RockSim | |
|---|---|---|
| Basic components | Yes | Yes |
| Freeform fins | Yes | Yes |
| Asymmetric fin configurations | Yes | Yes |
| Tube fins | Experimental | Yes |
| Ring-tail fins | No | Yes |
| Fins attached to fins | No | Yes |
| External pods | Yes | Yes |
| Canted fins / roll stabilization | Yes | No |
| Standard component libraries | Yes | Yes |
| Decals | Yes | Yes |
| Clustering support | Yes, modifiable | Yes, one-time wizard |
| Staging support | Yes, unlimited | Yes, 3 stages |
Simulation features[edit]
| OpenRocket | RockSim | |
|---|---|---|
| Degrees of freedom | 6DOF | 3DOF |
| Geodetic calculation (Earth coordinates, coriolis effect) | Yes | No |
| Simulations extensible by own code | Yes | No |
| Simulation animation | No | Yes |
| Plotting any simulated variables | Yes | Yes |
| Exporting simulated data | Yes | Yes |
| Computing custom variables | Yes | No |
Optimization and analysis[edit]
| OpenRocket | RockSim | |
|---|---|---|
| General design optimization | Yes | No |
| Mass optimization | Yes (using general optimizer) | Yes |
| Stability analysis | Yes, per component | Yes, per stage |
| Drag analysis | Yes, per component | Yes, per stage |
| Roll analysis | Yes | No |
Printing[edit]
| OpenRocket | RockSim | |
|---|---|---|
| Schematic view | Yes | Yes |
| Stability information | Yes | Yes |
| Simulation results | Yes | Yes |
| Parts list | Yes | Yes |
| Component templates | Nose cone, fin sets, centering rings | Nose cone, fin sets, centering rings |
| Fin placement guide | Yes | No |
| Export to PDF | Yes | No |
Usage[edit]
One attribute of interest when comparing pieces of software is how much each software is used and how much of a community exists around the software. While it's impossible to get an objective measure of the usage and community activity, Google Trends does a rather good job at providing an indication of the relative interest levels over time.
Since around 2014, OpenRocket and RockSim have received approximately the same amount of search hits. The first version of OpenRocket was released in May 2009, RockSim in 1997.