Explore with Imray vs DONIA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Explore with Imray
Access Imray's renowned cruising guides and pilot books on your mobile device. This app provides verified sailing directions, marina data, and points of interest for over 17,000 locations, all available offline. Enhance your passage planning and sailing experience with trusted, first-hand researched content.
- Offline cruising guides
- Verified pilotage information
- Marina and anchorage data
- Bookmark and filter locations
- Satellite map view
- User feedback submission
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**Explore with Imray** Cruising guides in your pocket! Carry the content from Imray’s world-renowned library of cruising guides and pilot books in your pocket. Designed for sailors and boaters, the content in Explore with Imray is researched first hand by experienced sailors and verified by Imray. It also includes information from extensive networks of trusted local contacts and data from official hydrographic offices, organisations and institutions. Verified and trusted cruising data - Content created by leading sailing authors and clubs including the Cruising Association, Rod and Lu Heikell, the Royal Cruising Club Pilotage Foundation, Clyde Cruising Club and much more - Invaluable pilotage information and sailing directions for over 17,000 locations - Marina, harbour and anchorage descriptions and data - Contact, mooring and facilities information - Images and chartlets from the extensive Imray collection Key Features: - Offline Content: Download and access essential pilotage information and sailing directions to access whilst at sea - Verified Points of Interest: Explore trusted cruising data and discover verified points of interest along your journey - Add your Feedback: Send your updates and feedback directly from the app to the editors, for review and potential inclusion in Explore with Imray and Imray’s printed books - Bookmark and Filter Locations: Easily bookmark locations and filter them by facilities to find what you need quickly. - Satellite View: Gain a comprehensive view of your surroundings on the satellite map background. - Access to Desktop version: Your membership allows you to also access the online desktop version. Explore with Imray offers a free trial and annual membership. Get full access with the Explore with Imray annual subscription for just £69.99. This 12-month auto-renewing plan ensures you stay connected to premium features all year long. Your Apple account will be charged upon confirmation of purchase. Membership subscription will automatically renew unless auto-renewal is turned off 24 hours before the current period ends in your account settings. Cancelling auto-renewal ensures access until the current payment period concludes. By using this app, you agree to the standard Apple End User License Agreement (EULA), which can be found here: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/. For more information on how we handle your data, please review our Privacy Policy (https://www.imray.com/about/privacy/). We aim to guide your passage planning and sailing. Got feedback? Let us know how we can better serve you!
DONIA
This app provides detailed seabed visualization and marine information for safe and respectful sea navigation. It allows users to book mooring buoys, share observations, and monitor their vessels. Access premium features like high-definition charts for enhanced planning and exploration.
- Seabed visualization
- Marine information access
- Mooring buoy booking
- User observation sharing
- Navigation preparation and monitoring
- Mooring monitoring with alarms
- Offline mapping
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DONIA – Enjoy & protect the sea, together Donia is the reference app to choose your anchorages and navigate safely while minimizing your impact on the seabed. Join a community of over 100,000 sea enthusiasts who use DONIA to plan and experience their journeys across the Mediterranean and beyond. *** Visualize the seabed and anchor in the right place *** • High-precision mapping of marine habitats (Posidonia, coralligenous reefs, Cymodocea, sand and rock) • Enhanced anchoring assistance with weather conditions • Improved anchor alarm system • Smart selection of anchoring zones adapted to your vessel *** Complete nautical charts *** • Detailed mapping of navigation areas (French Mediterranean, Atlantic, Greece, Andalusia, Liguria, Croatia, Balearics) • Advanced integration of SHOM charts and HD bathymetric layers (Premium) • Optimized map display for real-time navigation *** A community of sailors *** • View and share sea observations • Rating system and favorites • Easy sharing inside and outside the app *** Donia Mooring – connected buoys *** • Connected mooring buoys for vessels over 24m • Dedicated anchoring zones • In-app booking, payment and management *** DONIA Premium *** • Advanced SHOM chart integration • Access to HD bathymetric layers A mission: protecting the sea Created by marine biologists and divers from Andromède Océanologie, DONIA aims to make seabed maps visible and accessible so everyone can contribute to their protection. Inspired by maritime solidarity, the app continuously evolves based on user feedback to become a more innovative, useful and effective anchoring tool. Information Using GPS in the background may significantly reduce battery life. Your subscription renews automatically unless you cancel it at least 24 hours before the end of the current billing period. Payment will be charged to your iTunes account upon confirmation of purchase. You can manage your subscriptions and turn off automatic renewal in your account settings after purchase. Privacy Policy: https://mooring.donia.fr/cgv/donia/cgv-donia-fr.pdf Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is monetization model: DONIA at freemium against Explore with Imray's subscription. DONIA also leads on review sentiment (59% vs 25%) and update cadence (fortnightly vs every 2 months). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Explore with Imray sells 1 in-app purchase, starting at $79.99 per year and DONIA sells 2 in-app purchases, starting at $2.49 per month. Whichever you choose, the download price is not the number that matters.
Explore with Imray ships an update every 2 months, DONIA fortnightly. The most recent releases landed on September 21, 2026 and September 22, 2026 respectively.
| Parameter | Explore with Imray | DONIA |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.5 (31 ratings) — better |
| Positive reviews | 25.0% of reviews | 59.3% of reviews — better |
| Number of ratings | — | 31 — better |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Subscription | Freemium — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 94 MB | 61 MB |
| Age rating | +4 | 4+ |
| Developer | FB Imray Laurie Norie & Wilson GmbH | Andromede Oceanologie |
Customer experience
Explore with Imray
DONIA
In-app purchases
Explore with Imray
- Explore Annual Membership$79.991 Year
DONIA
- DONIA® Premium Monthly7 Days trial$2.491 Month
- DONIA® Premium Version7 Days trial$22.991 Year








