so ive been doing monthly progress shots for a mid-size commercial build for about 6 months now and started with DroneDeploy because honestly it was just easier to get started with. the automated flight planning is pretty solid and the orthomosaic output is clean enough that the site managers are happy with it.

but ive been hearing a lot about Pix4D giving better accuracy on the point clouds, especially when you have a lot of vertical structure which this site definitely has ? its a 4 story concrete pour so theres a fair amount of facade stuff that i want to capture properly. my GCP setup is fine i think, im using 5 points distributed across the site with a decent GNSS receiver so that part isnt really the issue.

question is whether the jump to Pix4D is actually worth it for this kind of work or if im just overthinking it and DroneDeploy is fine. also the pricing difference is not nothing so id want a real reason to switch not just marketing stuff

been using both for a couple years now doing civil survey work and honestly for construction progress documentation DroneDeploy is totally fine. the client doesnt care about your point cloud density they care about can they see what changed since last month. Pix4D is better when you actually need to pull measurements off the model with any kind of accuracy or if youre doing volume calcs that need to hold up to scrutiny.

the one thing i will say is Pix4D's desktop processing gives you way more control over the reconstruction parameters which matters when you have a site with a lot of repetitive texture ? like a concrete wall that goes on forever confuses the feature matching and you can tweak stuff to deal with that. DroneDeploy is pretty black box in comparison. so it depends what your deliverables actually are i guess.

i switched to Pix4D about a year ago and the main thing i noticed was the processing reports are way more detailed which is useful when a client questions your accuracy. also the rayCloud editor is really handy for cleaning up the point cloud manually if you get weird artifacts around equipment or scaffolding. that said the learning curve is real and if DroneDeploy is already getting you paid i wouldnt rush into it