# WRI Dolphin vs Tchoup

The clearest difference is update cadence: Tchoup at every 5 days against WRI Dolphin's fortnightly. WRI Dolphin's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 26.0). On price, 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.

WRI Dolphin ships an update fortnightly, Tchoup every 5 days. The most recent releases landed on October 9, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | WRI Dolphin | Tchoup |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/wri-dolphin/id6744825292/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 5 days** |
| Monetization | Free | — |
| Size | 15 MB | 1 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Weather Routing Inc.](https://appshunter.io/developer/1486427449) | [Christopher Wolff](https://appshunter.io/developer/1777332022) |

## What reviewers say

### WRI Dolphin

[App page](https://appshunter.io/ios/app/wri-dolphin/id6744825292)

Access global weather and routing data for maritime professionals. Features include detailed forecasts for wind, waves, currents, and precipitation, along with vessel tracking and severe weather alerts. Stay informed with real-time updates and push notifications for maritime hazards.

**Highlights:** 3 Hourly Global Forecast Data, Wind, Wave, and Current Forecasts, Radar and Lightning Data, Vessel Tracking, Heavy Weather Alerts, Port Forecasts, Push Notifications

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

**In-app purchases:** none


### Tchoup

[App page](https://appshunter.io/ios/app/tchoup/id6793276864)

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

**In-app purchases:** none


## Frequently asked questions

### Is WRI Dolphin free?

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

### Is Tchoup free?

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

### Do WRI Dolphin or Tchoup have ads?

Neither WRI Dolphin nor Tchoup shows ads.

### Which is updated more often, WRI Dolphin or Tchoup?

WRI Dolphin ships an update fortnightly, and Tchoup every 5 days. Most recently, WRI Dolphin was updated on October 9, 2026 and Tchoup on October 6, 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.*