# EDDMapS vs E

The clearest difference is price: EDDMapS at Free against E's $49.99. EDDMapS also leads on update cadence (monthly vs every 11 months). E's advantage is iOS requirement (15.6 vs 18.6). On ads, in-app purchases and device support there is nothing between them.

EDDMapS is free to download; E costs $49.99 up front. Neither carries in-app purchases, so what you see is what you pay.

EDDMapS ships an update monthly, E every 11 months. The most recent releases landed on September 25, 2026 and August 28, 2026 respectively.

## The numbers

| Metric | EDDMapS | E |
| --- | --- | --- |
| Price | **Free** | $49.99 |
| Rating | **[4.7 (120 ratings)](https://appshunter.io/ios/app/eddmaps/id1497390237/reviews)** | — |
| Number of ratings | **120** | — |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 11 months |
| Monetization | Free | — |
| Size | 251 MB | 26 MB |
| Requires iOS | 18.6 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Charles T. Bargeron](https://appshunter.io/developer/381326173) | [Axiomatic Technologies Corporation](https://appshunter.io/developer/1719190927) |

## What reviewers say

### EDDMapS

[App page](https://appshunter.io/ios/app/eddmaps/id1497390237)

Document and map the distribution of invasive species with this user-friendly system. It allows for easy data submission, visualization, and querying, aiding in early detection and rapid response efforts. All data is reviewed by experts for accuracy.

**Highlights:** Document invasive species distribution, User-friendly mapping system, Data submission and querying, Interactive maps, Expert data verification, Early Detection and Rapid Response support

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

**In-app purchases:** none


### E

[App page](https://appshunter.io/ios/app/e-write-nfc/id6473560354)

**In-app purchases:** none


## Frequently asked questions

### Is EDDMapS free?

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

### Is E free?

E costs $49.99, with no in-app purchases.

### Do EDDMapS or E have ads?

Neither EDDMapS nor E shows ads.

### Which is updated more often, EDDMapS or E?

EDDMapS ships an update monthly, and E every 11 months. Most recently, EDDMapS was updated on September 25, 2026 and E on August 28, 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.*