# PIX4Dcatch vs GSD Drone Calculator

The clearest difference is rating: PIX4Dcatch at 4.7 against GSD Drone Calculator's 4.0. PIX4Dcatch also leads on ads (none vs shown) and review sentiment (33% vs 0%). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. PIX4Dcatch sells 1 in-app purchase, starting at $159.00 per month and GSD Drone Calculator sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

PIX4Dcatch holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: PIX4Dcatch has 267 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 33% of PIX4Dcatch's written reviews are positive against 0% of GSD Drone Calculator's.

PIX4Dcatch ships an update every 2 weeks, GSD Drone Calculator monthly. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | PIX4Dcatch | GSD Drone Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (267 ratings)](https://appshunter.io/ios/app/pix4dcatch-3d-scanner/id1511483044/reviews)** | [4.0 (3 ratings)](https://appshunter.io/ios/app/gsd-drone-calculator/id6450757319/reviews) |
| Number of ratings | **267** | 3 |
| Positive reviews | **32.5% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 239 MB | 2 MB |
| Requires iOS | **18.0** | 18.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Pix4D](https://appshunter.io/developer/952725638) | [Roman Akhromieiev](https://appshunter.io/developer/1223973006) |

## What reviewers say

### PIX4Dcatch

[App page](https://appshunter.io/ios/app/pix4dcatch-3d-scanner/id1511483044)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PIX4Dcatch Professional | $159.00 | per month |

**What reviewers like**

- 👍 Great idea for photogrammetry
- 🚀 Works well for professional use
- 👍 Consistently gets survey grade results
- 👍 Useful as an additional survey tool
- 👍 Amazing, game changer

**What reviewers complain about**

- 💰 Very expensive subscription
- 💰 High monthly subscription cost
- 💰 Way too expensive for small objects
- 💰 Unclear cost structure
- 💰 Credits add up unexpectedly

**Reported bugs**

- 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

**Requested features**

- 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


### GSD Drone Calculator

[App page](https://appshunter.io/ios/app/gsd-drone-calculator/id6450757319)

Calculate Ground Sample Distance (GSD) for drone missions with this intuitive tool. Input drone specs and camera details to get precise GSD values for optimal mapping, surveying, and photography. Streamline your data collection and enhance accuracy for all aerial endeavors.

**Highlights:** Accurate GSD calculations, Input drone and camera specifications, Real-time GSD values, Optimize flight planning, Intuitive user interface, Save calculations, Image resolution insights

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Month | $1.99 | per month |
| Annual | $19.99 | per year |
| Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is PIX4Dcatch free?

PIX4Dcatch is free to download, with in-app purchases available.

### Is GSD Drone Calculator free?

GSD Drone Calculator is free to download, with in-app purchases available.

### Which has better reviews, PIX4Dcatch or GSD Drone Calculator?

PIX4Dcatch is rated higher. PIX4Dcatch averages 4.7 out of 5 from 267 ratings, while GSD Drone Calculator averages 4.0 from 3 ratings.

### Do PIX4Dcatch or GSD Drone Calculator have ads?

GSD Drone Calculator shows ads; PIX4Dcatch does not.

### Which is updated more often, PIX4Dcatch or GSD Drone Calculator?

PIX4Dcatch ships an update every 2 weeks, and GSD Drone Calculator monthly. Most recently, PIX4Dcatch was updated on November 7, 2026 and GSD Drone Calculator on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*