# iStreams Channel Islands vs eOceanic

The clearest difference is review sentiment: iStreams Channel Islands at 50% against eOceanic's 0%. eOceanic's advantage is update cadence (every 6 weeks vs every 3 months) and iOS requirement (12.0 vs 18.2). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. iStreams Channel Islands sells 7 one-off in-app purchases and eOceanic sells 1 in-app purchase, starting at $49.99 per year. Whichever you choose, the download price is not the number that matters.

iStreams Channel Islands ships an update every 3 months, eOceanic every 6 weeks. The most recent releases landed on September 22, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | iStreams Channel Islands | eOceanic |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 56 MB | 83 MB |
| Requires iOS | 18.2 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Navtech Software](https://appshunter.io/developer/355517263) | [eOceanic Limited](https://appshunter.io/developer/1801941274) |

## What reviewers say

### iStreams Channel Islands

[App page](https://appshunter.io/ios/app/istreams-channel-islands/id1223503159)

This app provides real-time Channel Islands tidal stream data, functioning offline. It offers tools for measuring tide set and rate, and calculating Course to Steer. Plan your voyages with hourly charts and precise navigational information.

**Highlights:** Hourly tidal stream atlas, Offline functionality, Tide set and rate measurement, Course to Steer calculation, Local and UTC time options, Boat position display on chart, Zoomable charts

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Set tool | $1.99 | one-time |
| Dover Tides 2018 | $2.99 | 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 |


### eOceanic

[App page](https://appshunter.io/ios/app/eoceanic/id6743214768)

Empowering boaters with comprehensive sailing intelligence for the English and Irish coasts. Download charting, tidal data, and more for offline use, ensuring a safe and enjoyable experience at sea.

**Highlights:** Offline charting and tidal data, Discover nearby havens and routes, Extensive resource search, Raster charts with seamless scaling, Hazard and danger alerts, Man-Over-Board (MOB) function, Logging and progress tracking

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| eOceanic Subscription | $49.99 | per year |


## Frequently asked questions

### Is iStreams Channel Islands free?

iStreams Channel Islands is free to download, with in-app purchases available.

### Is eOceanic free?

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

### Do iStreams Channel Islands or eOceanic have ads?

Neither iStreams Channel Islands nor eOceanic shows ads.

### Which is updated more often, iStreams Channel Islands or eOceanic?

iStreams Channel Islands ships an update every 3 months, and eOceanic every 6 weeks. Most recently, iStreams Channel Islands was updated on September 22, 2026 and eOceanic on September 8, 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.*