Comparison

Imray Navigator vs iStreams Solent

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Imray Navigator

This marine chart plotter provides nautical charts for various sea activities. Plan passages, create routes, and share tracks. Offers GPS, tides, and AIS integration for comprehensive navigation.

Highlights
  • Nautical charts from Imray and other publishers
  • Passage planning and route creation
  • Share tracks and waypoints
  • GPS and instrument integration
  • Tides and AIS functionality
  • Quarterly chart updates
Features
Read full description

Imray's marine chart plotter for sailors, divers, canoeists, fishermen and anyone involved with making way at sea. Nautical charts by Imray and other publishers Easy to use for passage planning and route creation Keep up to date with new chart subscriptions for the latest data Plan your routes and share tracks and waypoints with your crew or friends Based on the award-winning Marine Imray Charts app Technical support for this app is available to subscribers. Email support@imray.com FEATURES - Award winning raster charts from Imray and other Hydrographic Offices - Auto-renewable 12-month subscription includes quarterly updates with new chart editions, notes and corrections. - Waypoints - Routes: distances, targets, bearings - Position and destination - Course to steer, speed and bearing - Magnetic compass - Distances, bearings from any point to any point - Electronic bearing line - GPS and instruments - Tides with full functionality from Tides Planner app - AIS and NMEA functionality from Boat Instruments app - Aerial photographs (subject to coverage) and harbour plans - Tracks that you can share with friends Download Chart Sets from the Chart Store in the app. Warning: Continued use of WiFi and of GPS running in the background can dramatically decrease battery life. COVERAGE (CHART SETS) Tap on the i icon in the Chart Store in the free app to see more detail of coverage areas. Imray Charts free app: English Channel passage charts. Imray ID10 North Sea Imray ID20 English Channel England and France. Imray ID30 West coast England, Wales, west coast Scotland, Ireland. Imray ID40 Atlantic France, Iberia and Atlantic Islands. Imray ID50 Western Mediterranean. Gibraltar to Sicily. Imray ID60 Central Mediterranean. Adriatic and Ionian Seas. Imray ID70 Eastern Mediterranean and Aegean Seas. Imray ID80 Netherlands Imray ID100 Eastern Caribbean. Virgin Islands to Grenada and Barbados. Also chart sets derived from official Hydrographic Office charts of Germany, France and the Netherlands. Tides - inherits permissions (beyond one day predictions) from the Tides Planner app if installed on the same device. LANGUAGES English, Dutch, French, German, Italian and Spanish SUBSCRIPTIONS TO CHART SETS Before taking out a subscription to Imray Navigator chart sets, please check that your device meets the minimum operating system requirements (Apple iPhone and iPad running iOS8 and higher). A subscription to a Chart Set covers a 12 month period from the date of purchase. During this period, you will receive 3 further quarterly updates, which will include new chart editions, notes and corrections/updates for that area where available from the publishers. Your subscription will automatically renew unless auto-renew is turned off in your Account Settings at least 24-hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current subscription period. The cost of the renewal is the same as your current yearÕs subscription. You can manage your subscription and you may switch off auto-renewal by going to your Account Settings in iTunes after purchase. PRICES AND PAYMENTS The price of a year's subscription is indicated in the Chart Store section of the app. The price of your Imray Navigator subscription will be charged to your iTunes account at confirmation of purchase. Any unused portion of a free trial period, if applicable, will be forfeited when the user purchases a subscription to that Chart Set. Manage your subscription in iTunes after purchase. Privacy policy https://www.imray.com/privacy Terms and Conditions of use https://www.imray.com/terms ABOUT US Imray is the leading publisher of nautical charts, books and apps. Our charts, designed and published in England, feature popular, carefully edited and award-winning cartography. Twitter @imray_charts Facebook @imraynautical

About

iStreams Solent

This app provides real-time Solent tidal stream data, displaying hourly charts and tools to measure tide set and interpolated rates. It functions offline and allows for future planning by selecting different dates.

Highlights
  • Real-time Solent tidal stream charts
  • Offline functionality
  • Tide set and rate measurement tools
  • Automatic Portsmouth HW time selection
  • Date selection for future planning
  • Zoomable charts
  • Boat position display on chart
Read full description

iStreams gives you instant access to the Solent tidal stream atlas, aligned to the current time using High Water at Portsmouth— even when you're offline. Whether you're sailing, navigating coastal waters, or passage planning, iStreams helps you understand tidal flow quickly and accurately. Key Features: Real-time tidal stream charts Automatically displays the correct hourly chart based on the nearest Portsmouth High Water time. Fully offline functionality (forecast link requires a connection) No signal? No problem. All charts and tools work without internet access. As time progresses, the app switches to the next valid tidal period. Swipe forward and backward through tidal hours with ease. Select any date for future planning Pinch to zoom and drag to explore details. Toggle between Local Time and UTC. Show boat position on the chart Navigation Tools: Interpolated Rate Calculator * Instantly calculate stream rate between neaps and springs. Tidal Set Tool (In-App Purchase) * Measure the true direction of tidal stream arrows with precision. Course to Steer (CTS) (In-App Purchase) * Calculate the correct heading to maintain your intended course. How It Works: iStreams automatically selects the nearest High Water at Portsmouth and displays the corresponding tidal stream chart. Want to plan ahead or review earlier conditions? Simply swipe forward or backward through the tidal hours to view past or future data. Why Choose iStreams? Designed for sailors, navigators, and coastal users Fast, clear, and easy-to-use interface Accurate tidal data when you need it most

Screenshots

Imray Navigator4 screens
iStreams Solent4 screens

Verdict

The call

The clearest difference is monetization model: iStreams Solent at free with in-app purchases against Imray Navigator's subscription. iStreams Solent also leads on review sentiment (33% vs 20%). Imray Navigator's advantage is iOS requirement (12.0 vs 18.2). On price, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Imray Navigator sells 8 in-app purchases, starting at $39.99 per year and iStreams Solent sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Imray Navigator ships an update every 2 months, iStreams Solent every 3 months. Both last shipped on November 2, 2026.

Scorecard3 real differences · 7 level
Imray Navigator versus iStreams Solent: the parameters behind the verdict, then further details
ParameterImray NavigatoriStreams Solent
PriceFreeFree
Rating1.0 (7 ratings) — better—
Positive reviews19.6% of reviews33.3% of reviews — better
Number of ratings7 — better—
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better18.2
Further details — not scored
Size167 MB38 MB
Age rating4+4+
DeveloperFB Imray Laurie Norie & Wilson GmbHNavtech Software

Customer experience

Imray Navigator

All ratings7 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews46 reviews
Positive19.6%
Neutral8.7%
Negative71.7%

iStreams Solent

Written reviews6 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

In-app purchases

8 purchases

Imray Navigator

Subscriptions8
  • Imray ID10 North Sea yearly subscription$39.991 Year
  • Imray ID20 English Channel yearly subscription$39.991 Year
  • Imray ID40 Atlantic France, Iberia and Atlantic Islands yearly subscription$39.991 Year
Show 5 more
  • Imray ID50 West Mediterranean yearly subscription$39.991 Year
  • Imray ID60 Central Mediterranean yearly subscription$39.991 Year
  • Imray ID70 East Mediterranean yearly subscription$39.991 Year
  • Imray ID100 East Caribbean yearly subscription$39.991 Year
  • Imray ID30 West Britain and Ireland yearly subscription$39.991 Year
4 purchases

iStreams Solent

One-time4
  • Unlock 'Set' tool$1.99
  • 1 Month Subscription2 variants$2.99
  • Unlock CTS tool$3.99
Show 1 more
  • 1 Year Subscription2 variants$5.99

Questions

Is Imray Navigator free?
Imray Navigator is free to download, with in-app purchases available.
Is iStreams Solent free?
iStreams Solent is free to download, with in-app purchases available.
Do Imray Navigator or iStreams Solent have ads?
Neither Imray Navigator nor iStreams Solent shows ads.
Which is updated more often, Imray Navigator or iStreams Solent?
Imray Navigator ships an update every 2 months, and iStreams Solent every 3 months. Most recently, Imray Navigator was updated on November 2, 2026 and iStreams Solent on November 2, 2026.

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