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TL;DR: The best Propeller Aero alternative depends on what your team is missing. Birdi (birdi.io) suits project teams where most people never touch survey software, and DroneDeploy suits construction teams that want one broad platform. Pix4D and Virtual Surveyor suit surveyors who want more control. For survey-led earthworks, Propeller itself is often still the right tool.
Key takeaways
- Propeller's own users are mostly happy. It holds 4.8 from 20 reviews on Capterra, and 11 of the 20 praise its ease of use, so most reasons to look elsewhere are about fit rather than failure.
- Collaboration limits are about scope and seats. Propeller's annual platform fee includes 40 standard users and unlimited sites, and more users are bought at renewal after the first year, according to its help center.
- Stockpile numbers carry real money. According to the US Geological Survey, 1.5 billion tons of crushed stone came from about 3,500 US quarries in 2025, at an average of $18.50 a ton.
- Ground control drives accuracy, whichever platform you choose. Propeller supports its own AeroPoints and custom ground control points, and ground control matters just as much on any alternative.
- Only some alternatives publish prices. Birdi, Pix4D, Virtual Surveyor, Global Mapper and WebODM do; DroneDeploy's team plans and Esri's Site Scan are quoted.
What is Propeller Aero, and why do teams look for alternatives?
Propeller Aero is a cloud platform for drone surveys on earthworks, mining and aggregates sites. It describes itself as "a single, cloud-powered map that brings your plans, data, and team together", built around AeroPoints ground control, PPK corrections and volume tools. Teams look elsewhere when their needs fall outside earthworks, or when more people need the data.
Propeller's toolset centers on surfaces and quantities: stockpile volumes, cut and fill, cross sections, design conformance and a timeline across surveys. It also sells hardware, including AeroPoints and DirtMate machine telematics, and it connects to Trimble Connect, Procore and Autodesk. It doesn't publish a price; its site offers a demo and a free trial instead.
What do Propeller's users say?
Propeller's public reviews are strongly positive. According to Capterra, it holds 4.8 from 20 reviews, and 11 of them praise ease of use. The complaints are scattered: 3 mention navigation or an interface that takes getting used to, 2 mention slow measurements or processing, and only 1 mentions price. G2's review summary also lists cost as a complaint.
In their words, one 2025 reviewer wrote: "We use Propeller Aero on a daily basis. All aspects of our company use the portal." Another, in 2024, said the "user interface takes a little getting used to and can be intimidating." Each is one person's experience. Together, they suggest that people rarely leave Propeller because it fails. More often, a team outgrows its focus or wants different people in the data.
What should a Propeller Aero alternative do for team collaboration?
A good alternative matches Propeller where you rely on it and does better where you need more. For collaboration, that means four things: access for people outside the survey crew, data types in one view, accuracy and ground control, and a published price. Volumes and survey comparisons matter for any team leaving an earthworks platform.
Accuracy deserves care, because it depends on the workflow more than the brand. According to a 2018 peer-reviewed study in Remote Sensing, accuracy improves as ground control increases and is spread evenly. The study tested 3,465 combinations of ground control points on a 1,200-hectare site, and found accuracy is overestimated when checked only on control points. The ASPRS positional accuracy standard now asks for at least 30 independent checkpoints.
So every entry below carries the same fields, including access for people outside the paid team, data types in one view, processing, and accuracy and ground control.
The best Propeller Aero alternatives in 2026
Seven platforms are worth considering, grouped by the reason teams switch. Birdi and DroneDeploy suit teams that need more people in the data. Pix4D, Virtual Surveyor and Global Mapper suit surveyors who want more control. Site Scan for ArcGIS suits Esri organizations, and WebODM suits teams where cost is the constraint.
1. Birdi
Best for: project teams where the survey crew is a few people and the people who need the data are many: project managers, engineers, finance, owners and clients.
Typical customer size / segment: construction and mining firms of roughly 30 to 500 staff, on the Growth and Ultimate plans.
Key strengths:
- Sites keep every survey of a location together, and ground control uploaded once is available to every future map of that site.
- Survey-to-survey stockpile comparison: an earlier survey's elevation model becomes the base surface, giving cut, fill and net volume in cubic meters and, once a material is set, metric tons.
- Guests view and download without using a seat, and public map links need no login.
Access for people outside the paid team: guest seats on every plan (20 on Plus, 50 on Growth), plus no-login public links.
Data types in one view: drone maps and elevation models, point clouds, 360 photos, video, design files and PDFs.
Processing: cloud, drone-agnostic.
Accuracy and ground control: a published table, from 2 to 4 cm vertical with RTK and 3 to 5 well-distributed GCPs, and a plain warning that repeat surveys vary more than a single one.
Watch-outs: it is not a survey tool with ground control hardware of its own, so survey-led earthworks teams are often better served by Propeller itself.
Pricing: Growth $287 a month billed annually (5 users, 50 guest seats); Ultimate by quote. Checked September 21, 2026.
2. DroneDeploy
Best for: construction teams that want one broad platform for capture, processing, 360 walks and reporting, with deep integrations.
Typical customer size / segment: from single pilots to large general contractors. Its pricing calculator sizes team plans by active projects and annual construction volume.
Key strengths:
- Aerial and ground capture in one platform, including 360 walks, BIM overlays and Progress AI for automated progress reports.
- On Aerial Pro, it imports orthomosaics and elevation models processed elsewhere, and its help center names Propeller among the sources, so mixed-vendor projects can measure volumes in one place.
- Integrations with Procore, Autodesk Build, Esri and SharePoint.
Access for people outside the paid team: view-only links to one map date on every paid plan. Whole-project links and unpaid project invitees need an Enterprise organization.
Data types in one view: maps, 3D models, panoramas, video, 360 walks, and BIM and floor plan overlays.
Processing: cloud.
Accuracy and ground control: GCP, RTK and PPK workflows, with AeroPoints supported. It labels RTK or PPK without checkpoints "unvalidated accuracy".
Watch-outs: team plans are quoted, and access for people without a paid seat depends on the plan. On Capterra, 3 of its 9 reviews raise cost.
Pricing: team plans by quote. The one-user Flight & Analysis plan is $4,188 a year, checked September 21, 2026.
3. Pix4D (PIX4Dcloud with PIX4Dmatic)
Best for: survey teams that want more control over photogrammetry, with cloud sharing for the rest of the team.
Typical customer size / segment: individuals to mid-sized survey and engineering teams. Pix4D calls PIX4Dcloud Pro "ideal for professional small and medium teams".
Key strengths:
- Unlimited users on every PIX4Dcloud plan, and share links that let anyone view and measure without logging in.
- PIX4Dcloud Pro compares volumes over time and overlays DXF and IFC designs.
- Desktop processing in PIX4Dmatic, with point cloud classification and CAD-ready vectors.
Access for people outside the paid team: unlimited users, plus "view and measure only" links that need no account.
Data types in one view: maps, elevation models, point clouds, meshes and design overlays. 360 panoramas are not a supported input.
Processing: cloud on credits, or desktop.
Accuracy and ground control: AutoGCPs on Pro, plus RTK, PPK and standard GCPs. Pix4D says relative accuracy is typically 1 to 2 times the ground sample distance horizontally.
Watch-outs: cloud datasets top out at 4,000 images, and desktop products need a strong workstation. On Capterra, 3 of 10 PIX4Dmapper reviews raise price.
Pricing: PIX4Dcloud Starter $1,290 and Pro $4,490 a year; PIX4Dmatic from $2,290 a year. Checked September 21, 2026.
4. Virtual Surveyor
Best for: surveyors who want to produce topographic surveys, stockpile reports and CAD deliverables from drone data on the desktop.
Typical customer size / segment: survey firms and individual surveyors. Its licenses float between computers, and team licenses are sold by concurrent user.
Key strengths:
- Tools that work like a field surveyor's, for topographic, planimetric and quantity surveys.
- Stockpile reports as PDFs, and cut and fill against a baseline or design surface on higher plans.
- A free Valley plan to import orthomosaics and elevation models and export to CAD.
Access for people outside the paid team: limited. It is desktop software, and it shares projects through a Dropbox integration.
Data types in one view: orthomosaics, elevation models and point clouds, with CAD export.
Processing: desktop, with photogrammetry on paid plans.
Accuracy and ground control: works from the orthomosaics and elevation models you bring, so accuracy follows your capture and control.
Watch-outs: it is a surveyor's production tool, not a shared workspace for a project team.
Pricing: free Valley plan; paid plans from €100 a month (Ridge), with two months free on annual billing. Checked September 21, 2026.
5. Global Mapper
Best for: surveyors and engineers who want desktop terrain, volume and lidar analysis with a one-off license.
Typical customer size / segment: individual users and small teams, licensed per computer or on a network.
Key strengths:
- A one-off license rather than a subscription.
- Global Mapper Pro adds lidar classification and "Pixels to Points" for creating point clouds from drone photos.
- A broad set of terrain analysis tools, with Python scripting.
Access for people outside the paid team: limited. Colleagues see exports rather than the project.
Data types in one view: vector, raster, elevation, lidar and photogrammetric point clouds.
Processing: desktop.
Accuracy and ground control: Pixels to Points can place GCPs automatically; accuracy follows your capture and control.
Watch-outs: it is built for the analyst, not for sharing with a wider team.
Pricing: Standard $700 and Pro $1,750 for a single-user node-locked license. Checked September 21, 2026.
6. Site Scan for ArcGIS (Esri)
Best for: organizations that already run ArcGIS Online or ArcGIS Enterprise.
Typical customer size / segment: government agencies, utilities, and engineering and construction firms with an ArcGIS organization.
Key strengths:
- Cloud processing with automatic ground control point detection.
- Volumes, cut and fill, and change over time, published straight into ArcGIS.
- Fleet management and flight planning through ArcGIS Flight.
Access for people outside the paid team: strong. Esri says every Site Scan organization "can invite an unlimited number of Read-Only users and they do not affect the available license count."
Data types in one view: orthos, meshes and point clouds, alongside the rest of the ArcGIS organization.
Processing: cloud, or desktop in ArcGIS Drone2Map.
Accuracy and ground control: automatic ground control point detection, with RTK drones supported.
Watch-outs: members sign in through an ArcGIS Online organization, so it suits teams that already have one. Esri doesn't publish Site Scan prices.
Pricing: contact Esri.
7. WebODM
Best for: technical teams that want free processing and full control over their data.
Typical customer size / segment: individuals and technical teams that can run their own software.
Key strengths:
- Free and open source, with free installers since April 2026.
- Volume and area measurements for tracking stockpiles, plus GCPs and checkpoints.
- Runs on your own computer, even offline.
Access for people outside the paid team: share links to maps and 3D models.
Data types in one view: its own photogrammetry outputs.
Processing: your own hardware, or the paid WebODM Lightning service.
Accuracy and ground control: GCPs and checkpoints; accuracy follows your capture.
Watch-outs: someone has to run it, and WebODM says a machine with 8 GB of RAM won't process "more than ~100 images".
Pricing: free. WebODM Lightning costs $24 to $99 a month billed yearly. Checked September 21, 2026.
When should you stay with Propeller?
Stay with Propeller if your team is survey-led and works mainly on earthworks, quarries or civil sites. Its AeroPoints and PPK workflow, volume tools, design conformance and machine telematics are built for that job, and its users rate it highly. None of the alternatives above bundles ground control hardware into the same guided process.
Stay, too, if the people who need the data already have Propeller seats and use them. The 40 standard users in its annual fee cover many site teams, and Propeller connects to Procore and Autodesk if that is where your office works.
Instead of switching, consider adding a tool. A team might keep Propeller for survey and measurement, then put the outputs in front of the wider project in a platform built for sharing. In practice, the question isn't only whether Propeller is good. It is whether everyone who needs the numbers can see them. For how this works on mine and quarry sites, read about Birdi for mining and resources.
Frequently asked questions
What is Propeller Aero used for?
Propeller Aero is used for drone surveys on earthworks, mining, aggregates and civil sites. Teams use it to measure stockpile volumes, track cut and fill, check grade against design and compare surveys over time. It pairs with Propeller's own AeroPoints ground control and PPK corrections, and it also accepts data processed elsewhere.
Is DroneDeploy better than Propeller?
DroneDeploy is better for construction teams that want one broad platform, with 360 walks, BIM overlays, Progress AI and deep integrations. Propeller is better for survey-led earthworks and quarry teams that want guided ground control and volume tools. Propeller's public reviews are also stronger: 4.8 from 20 on Capterra, against DroneDeploy's 4.1 from 9.
Does Propeller work without AeroPoints?
Yes. Propeller's help center says it "supports both AeroPoints and custom GCPs as ground control," and it offers a PPK workflow and credits for bringing in data processed elsewhere. AeroPoints make ground control easier to set up and prove, but they are not required to use the platform.
What is the cheapest alternative to Propeller?
WebODM is the cheapest alternative to Propeller: it is free and open source, though someone has to run it. Virtual Surveyor has a free plan for importing data and exporting to CAD, with paid plans from €100 a month. Among cloud team platforms, PIX4Dcloud starts at $1,290 a year and Birdi Growth at $287 a month billed annually.
Which Propeller alternative is best for sharing with clients?
Birdi, PIX4Dcloud and Site Scan for ArcGIS are the strongest for sharing with clients. Birdi offers guest seats that use no paid seat and no-login public links, alongside 360 photos and documents. PIX4Dcloud includes unlimited users and no-login measuring links. Site Scan allows unlimited read-only users in an ArcGIS organization.
About the author
This guide was written by the Birdi team. Birdi (birdi.io) is a geospatial AI workspace that construction and mining teams use to share drone, 360 and design data in one map. We checked every product fact against the vendor's own site or documentation on September 21, 2026, and counted the reviews ourselves. Each source is listed below.
Related reading
- Stockpile volume software compared: the platforms mine and quarry teams use to measure stockpiles.
- Reconciling stockpile volumes: a step-by-step guide for mine and quarry operators.
- Ground control for volume reports: the role ground control points play in accurate volumetric reporting.
- Creating a stockpile volume report: how to create a stockpile volume report.
Sources
Government and research
- U.S. Geological Survey. "Stone (Crushed)." Mineral Commodity Summaries, February 2026. https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-stone-crushed.pdf
- Sanz-Ablanedo, E., Chandler, J.H., Rodríguez-Pérez, J.R. and Ordóñez, C. "Accuracy of Unmanned Aerial Vehicle (UAV) and SfM Photogrammetry Survey as a Function of the Number and Location of Ground Control Points Used." Remote Sensing 10(10), 1606, 2018. https://doi.org/10.3390/rs10101606
- Abdullah, Qassim A. "The ASPRS Positional Accuracy Standards, Edition 2." LIDAR Magazine, October 6, 2023. https://lidarmag.com/2023/10/06/the-asprs-positional-accuracy-standards-edition-2/
Propeller
- Propeller. Home page, "Platform" and "AeroPoints." Checked September 21, 2026. https://www.propelleraero.com/ · https://www.propelleraero.com/platform/ · https://www.propelleraero.com/aeropoints/
- Propeller Help Center. "Ground Control Placement and Distribution" (September 7, 2026); "What is a Standard or Oversized Dataset?" (February 24, 2026); "How To Share and Manage Access To a Site" (July 9, 2026). https://help.propelleraero.com/hc/en-us/articles/19383411527063 · /19383374221207 · /19384064976407
- Capterra. Propeller Aero reviews (20) and DroneDeploy reviews (9). Read September 21, 2026. https://www.capterra.com/p/179319/Propeller-Platform/reviews/ · https://www.capterra.com/p/197016/DroneDeploy/reviews/
- G2. Propeller Aero reviews (search snippets only). Read September 21, 2026. https://www.g2.com/products/propeller-aero/reviews
Alternatives
- DroneDeploy. "Pricing"; Help Center "Data Sharing," "Choosing a High Accuracy Workflow" and "Uploading Preprocessed Ortho + DEM GeoTIFF for Volumetrics." Checked September 21, 2026. https://www.dronedeploy.com/pricing · https://help.dronedeploy.com/hc/en-us/articles/1500004862021 · /22885434354327 · /39903288916759
- Pix4D. "PIX4Dcloud pricing" and "PIX4Dmatic pricing"; Support, "Share functionality" and "What is the relative and absolute accuracy of drone mapping?" Checked September 21, 2026. https://www.pix4d.com/pricing/pix4dcloud · https://support.pix4d.com/hc/en-us/articles/360044557751 · /202558889
- Virtual Surveyor. Home page and "Pricing." Checked September 21, 2026. https://www.virtual-surveyor.com/pricing
- Blue Marble Geographics. "Purchase Global Mapper" and "Global Mapper Pro." Checked September 21, 2026. https://www.bluemarblegeo.com/purchase-global-mapper/
- Esri. "Site Scan for ArcGIS" and "Add and manage team members." Checked September 21, 2026. https://www.esri.com/en-us/arcgis/products/arcgis-reality/products/site-scan-for-arcgis · https://doc.arcgis.com/en/site-scan/latest/get-started/manage-team-members.htm
- WebODM. Home page and "Download"; WebODM Lightning "Pricing." Checked September 21, 2026. https://webodm.org · https://webodm.org/download · https://webodm.net/pricing
Birdi
- Birdi. "Pricing." Checked September 21, 2026. https://www.birdi.io/pricing
- Birdi Help Center. "How to use Sites in Birdi"; "How to upload GCP and prism reference sets to a site"; "How to compare stockpile volumes between two surveys"; "How to calculate stockpile tonnage"; "How accurate are my maps?"; "How to update a user role and permissions." https://help.birdi.io/en/articles/16767430 · /16768238 · /16591511 · /16590329 · /13837409 · /11091551
Review evidence comes from Capterra, with G2 search snippets as corroboration. Reddit, G2's full pages and TrustRadius could not be read for this guide.
