# Catalis GIS vs NGS Benchmark Hunter

The clearest difference is iOS requirement: Catalis GIS at 16.4 against NGS Benchmark Hunter's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Catalis GIS ships an update weekly, NGS Benchmark Hunter every 2 weeks. The most recent releases landed on October 18, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Catalis GIS | NGS Benchmark Hunter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (4 ratings)](https://appshunter.io/ios/app/ngs-benchmark-hunter/id6760606901/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Monetization | — | Free |
| Size | 60 MB | 3 MB |
| Requires iOS | **16.4** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Catalis, LLC](https://appshunter.io/developer/1822849893) | [Vincent Star](https://appshunter.io/developer/1752585812) |

## What reviewers say

### Catalis GIS

[App page](https://appshunter.io/ios/app/catalis-gis/id6747779929)

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

**In-app purchases:** none


### NGS Benchmark Hunter

[App page](https://appshunter.io/ios/app/ngs-benchmark-hunter/id6760606901)

Discover and locate National Geodetic Survey markers across the United States with this app. It displays hundreds of thousands of reference points on an interactive map, color-coded by difficulty. Log your finds, view official data, and explore benchmarks nationwide.

**Highlights:** Interactive map of survey markers, Color-coded difficulty markers, Official NGS datasheets and history, Log finds with notes and photos, Nationwide benchmark search, Satellite view for location aid

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

**In-app purchases:** none


## Frequently asked questions

### Is Catalis GIS free?

Catalis GIS is free to download, with no in-app purchases.

### Is NGS Benchmark Hunter free?

NGS Benchmark Hunter is free to download, with no in-app purchases.

### Do Catalis GIS or NGS Benchmark Hunter have ads?

Neither Catalis GIS nor NGS Benchmark Hunter shows ads.

### Which is updated more often, Catalis GIS or NGS Benchmark Hunter?

Catalis GIS ships an update weekly, and NGS Benchmark Hunter every 2 weeks. Most recently, Catalis GIS was updated on October 18, 2026 and NGS Benchmark Hunter on October 24, 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.*