Comparison

Bad Elf Flex vs PIX4Dcatch

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Bad Elf Flex

This utility app enhances the functionality of Bad Elf Flex and Flex Mini GNSS receivers. It allows users to monitor hardware health, adjust settings, and update firmware. For the Flex model, it also enables the purchase and application of tokens for advanced features and correction sources like SBAS and RTK.

Highlights
  • Monitor GNSS receiver health
  • Change hardware settings
  • Perform firmware updates
  • Purchase and load Flex Tokens
  • Enable hardware-based features
  • Access correction sources
Features
Read full description

This is the free companion utility app for the flexible, intuitive, and affordable Bad Elf Flex and Flex Mini GNSS receivers. Designed for GIS and survey professionals, the Bad Elf Flex and Flex Mini connect to your iPhone or iPad via Bluetooth and provide high-accuracy location data to ANY and ALL field data collection apps in your workflow. This app allows you to view the health of the Flex and Flex Mini hardware, change settings, and perform firmware updates. For the Bad Elf Flex, the app also supports purchasing and loading Flex Tokens into the hardware for enabling hardware-based features and correction sources. Several correction sources are supported including SBAS, RTK via NTRIP, and Atlas (L-band) satellite corrections. Visit https://bad-elf.com/ to learn more about the Bad Elf Flex and Flex Mini GNSS receivers. NOTES: * This app requires a Bad Elf Flex or Flex Mini to operate. * Our "Bad Elf GPS" companion app supports our legacy mapping-grade receivers: Bad Elf GPS Pro, GPS Pro+, Surveyor, and GPS for Lightning dongle. * Continued use of the GPS running in the background can dramatically decrease battery life.

About

PIX4Dcatch

Transform your mobile device into a powerful 3D scanner. Capture images and LiDAR data to create accurate 3D models for professional use. Visualize, measure, and share your creations in AR.

Highlights
  • 3D model creation from images and LiDAR
  • RTK device compatibility for centimeter accuracy
  • Live feedback during capture
  • Augmented reality (AR) model visualization
  • Cloud processing and desktop export options
  • Measurement and geolocation capabilities
Read full description

Digitize Reality: Transform your mobile device into a powerful 3D scanner. Simply point and record to create professional-grade 3D models. Pair with a compatible RTK device for centimeter-level accuracy, precise measurements, and geolocated 3D reconstructions. Visualize the captured model in the app, upload and export, and view it in AR. New ArcGIS Workflow: PIX4Dcatch now streams ArcGIS data in realtime in AR to provide in-field operators full contextual information about the entire site including 3D reconstructions and attributes. Our capture feature generates complete and defensible georeferenced 3D reconstructions which can be communicated seamlessly back to ArcGIS. New Guide-To Feature: PIX4Dcatch has a guide-to feature directing users to specified geolocated assets for staking, boosting onsite efficiency and accuracy. Just select the point or reconstruction you would like to find and follow the arrows in AR. WORKFLOW 1 – Scan & Capture Walk around your site. The app automatically gathers data and provides live feedback using iOS LiDAR, ensuring you capture every detail. For enhanced accuracy, use an RTK device compatible with PIX4Dcatch, PIX4D Autotags with a fully automated workflow, or combine both. 2 – Process, Analyze & Share Process your data by uploading to PIX4Dcloud for online analysis and sharing, or export to PIX4Dmatic for desktop processing. Both platforms offer a 14-day free trial. Projects can also be exported to third-party photogrammetry software. Measure spaces, document results, and enjoy all the benefits of a detailed 2D/3D model of your surroundings. 3 – View in AR Experience an immersive augmented-reality view. Display 3D models and points directly in your phone camera in AR. ____________________ USE CASES • Digitize construction sites • Measure stockpiles and other objects • Document underground utilities • Digitize indoor and outdoor spaces with Autotags • Visualize and verify 3D models in AR in real time • Perform single-point measurements with RTK accuracy ____________________ COMPATIBILITY • Optimized for LiDAR-equipped devices (Pro series phones) • All ARKit-enabled devices • RTK devices: Emlid Reach RX and RX2, TopCon HiPer CR, Bad Elf Flex Mini, Bad Elf Flex, Trimble DA2, Leica Zeno FLX100 ____________________ TERMS OF USE https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Bad Elf Flex4 screens
PIX4Dcatch4 screens

Verdict

The call

The clearest difference is rating: PIX4Dcatch at 4.7 against Bad Elf Flex's 3.6. PIX4Dcatch also leads on update cadence (every 2 weeks vs every 2 months) and ratings volume (264 vs 14). Bad Elf Flex's advantage is in-app purchases (none vs 1) and iOS requirement (15.5 vs 18.0). On price, review sentiment, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. PIX4Dcatch sells 1 in-app purchase, starting at $159.00 per month. Bad Elf Flex asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

PIX4Dcatch holds the better App Store score, 4.7 against 3.6. That said, the two scores are not equally well evidenced: PIX4Dcatch has 264 ratings behind it against 14, so its average is the more settled of the two. Written reviews complicate that: 40% of Bad Elf Flex's written reviews are positive against 33% of PIX4Dcatch's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Bad Elf Flex ships an update every 2 months, PIX4Dcatch every 2 weeks. The most recent releases landed on October 12, 2026 and October 15, 2026 respectively.

Scorecard6 real differences · 4 level
Bad Elf Flex versus PIX4Dcatch: the parameters behind the verdict, then further details
ParameterBad Elf FlexPIX4Dcatch
PriceFreeFree
Rating3.6 (14 ratings)4.7 (264 ratings) — better
Positive reviews40.0% of reviews — better32.5% of reviews
Number of ratings14264 — better
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.5 — better18.0
Further details — not scored
Size33 MB239 MB
Age rating4+4+
DeveloperBad Elf, LLC.Pix4D

Customer experience

Bad Elf Flex

All ratings14 ratings
Positive57.1%
Neutral14.3%
Negative28.6%
Written reviews5 reviews
Positive40.0%
Neutral0.0%
Negative60.0%

PIX4Dcatch

All ratings264 ratings
Positive92.0%
Neutral1.5%
Negative6.4%
Written reviews40 reviews
Positive32.5%
Neutral7.5%
Negative60.0%

Bugs and requests

Bad Elf Flex

Not enough reviews yet to summarise bugs or requests.

PIX4Dcatch

Reported bugs

18 issues
  • App crashes or shows SDK error with Emlid RX
  • Upload doesn't work for Dropbox or OneDrive
  • Mesh doesn't display like past versions
  • Cannot build an accurate model
  • App locks out
Show 13 more
  • Outputs contradict (geo tags vs GCP coordinates)
  • Cannot log into Pix account inside the app (keyboard issue)
  • Does not recognize license
  • Stopped uploading
  • Photos stored in app, impossible to get if not uploading
  • Create account impossible
  • Cannot register
  • Cannot get contact without registration
  • App unbrauchbar (unusable)
  • Trial cannot be cancelled
  • Scan took 4 days to process
  • Fatal results
  • Slow and annoying

Requested features

6 requests
  • Make it possible to work with any GNSS through NMEA Protocol
  • Export GCP's in GPS coordinates as well
  • Add instructions or tips
  • Allow export to local device instead of cloud
  • Allow export of images to PC for free
Show 1 more
  • Allow testing of 3D generation with a limit of pictures or generated 3Ds for free

In-app purchases

None

Bad Elf Flex

No in-app purchases

1 purchases

PIX4Dcatch

Subscriptions1
  • PIX4Dcatch Professional14 Days trial$159.001 Month

Questions

Is Bad Elf Flex free?
Bad Elf Flex is free to download, with no in-app purchases.
Is PIX4Dcatch free?
PIX4Dcatch is free to download, with in-app purchases available.
Which has better reviews, Bad Elf Flex or PIX4Dcatch?
PIX4Dcatch is rated higher. Bad Elf Flex averages 3.6 out of 5 from 14 ratings, while PIX4Dcatch averages 4.7 from 264 ratings.
Do Bad Elf Flex or PIX4Dcatch have ads?
Neither Bad Elf Flex nor PIX4Dcatch shows ads.
Which is updated more often, Bad Elf Flex or PIX4Dcatch?
Bad Elf Flex ships an update every 2 months, and PIX4Dcatch every 2 weeks. Most recently, Bad Elf Flex was updated on October 12, 2026 and PIX4Dcatch on October 15, 2026.

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