# EGNOS vs iStreams Dover Strait

The clearest difference is in-app purchases: EGNOS at none against iStreams Dover Strait's 6. EGNOS also leads on iOS requirement (11.0 vs 18.4). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. iStreams Dover Strait sells 6 one-off in-app purchases. EGNOS asks for nothing beyond the download.

EGNOS ships an update every 4 months, iStreams Dover Strait every 3 months. The most recent releases landed on October 3, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | EGNOS | iStreams Dover Strait |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Size | 61 MB | 39 MB |
| Requires iOS | **11.0** | 18.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [EUROPEAN SATELLITE SERVICES PROVIDER](https://appshunter.io/developer/1346540595) | [Navtech Software](https://appshunter.io/developer/355517263) |

## What reviewers say

### EGNOS

[App page](https://appshunter.io/ios/app/egnos/id1346540596)

**Features:** macOS Compatibility

**In-app purchases:** none


### iStreams Dover Strait

[App page](https://appshunter.io/ios/app/istreams-dover-strait/id1455616051)

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock 'Set' tool | $1.99 | one-time |
| Dover Tides 2019 | $2.99 | one-time |
| 6 Month Subscription | $2.99 | one-time |
| 1 Month Subscription | $2.99 | one-time |
| Unlock CTS tool | $3.99 | one-time |
| 1 Year Subscription | $5.99 | one-time |


## Frequently asked questions

### Is EGNOS free?

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

### Is iStreams Dover Strait free?

iStreams Dover Strait is free to download, with in-app purchases available.

### Do EGNOS or iStreams Dover Strait have ads?

Neither EGNOS nor iStreams Dover Strait shows ads.

### Which is updated more often, EGNOS or iStreams Dover Strait?

EGNOS ships an update every 4 months, and iStreams Dover Strait every 3 months. Most recently, EGNOS was updated on October 3, 2026 and iStreams Dover Strait 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.*