# EDDMapS Pro vs Stewart Tech

The clearest difference is iOS requirement: Stewart Tech at 15.6 against EDDMapS Pro's 18.6. 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.

EDDMapS Pro ships an update every 3 weeks, Stewart Tech every 5 weeks. The most recent releases landed on September 2, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | EDDMapS Pro | Stewart Tech |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/eddmaps-pro/id1207452368/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Free | — |
| Size | 35 MB | 98 MB |
| Requires iOS | 18.6 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Charles T. Bargeron](https://appshunter.io/developer/381326173) | [Stewart Tech, LLC](https://appshunter.io/developer/1683519194) |

## What reviewers say

### EDDMapS Pro

[App page](https://appshunter.io/ios/app/eddmaps-pro/id1207452368)

This professional tool allows biologists and land managers to report, monitor, and manage invasive species with detailed observations, offline maps, and data synchronization. It supports time-series monitoring, custom forms, and boundary overlays for effective spatial planning and control.

**Highlights:** Report and submit observations with GPS and photos, Download datasets for offline review, Record revisits and contest records, Photo projects for time-series monitoring, Use custom monitoring forms, Import KML for boundary overlays, Offline maps and workflow

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

**In-app purchases:** none


### Stewart Tech

[App page](https://appshunter.io/ios/app/stewart-tech/id6470707119)

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

**In-app purchases:** none


## Frequently asked questions

### Is EDDMapS Pro free?

EDDMapS Pro is free to download, with no in-app purchases.

### Is Stewart Tech free?

Stewart Tech is free to download, with no in-app purchases.

### Do EDDMapS Pro or Stewart Tech have ads?

Neither EDDMapS Pro nor Stewart Tech shows ads.

### Which is updated more often, EDDMapS Pro or Stewart Tech?

EDDMapS Pro ships an update every 3 weeks, and Stewart Tech every 5 weeks. Most recently, EDDMapS Pro was updated on September 2, 2026 and Stewart Tech on September 19, 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.*