Comparison

iStreams Solent vs NavDash

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

Head to head
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

About

NavDash

Access all your vessel data on your mobile device with this app. It displays engine status, sailing performance, battery levels, and alarm notifications. The companion hardware provides GPS and NMEA 2000 data via Bluetooth.

Highlights
  • Vessel data display
  • Engine monitoring
  • Sailing performance tracking
  • Battery status monitoring
  • Alarm notifications
  • GPS and NMEA 2000 integration
Features
Read full description

ALL THE VESSEL DATA AT YOUR FINGERTIPS veratron GO Plus+ is a combined GPS receiver and NMEA 2000 to Bluetooth Low Energy (BLE) gateway which brings all your vessel data to your fingertips. The embedded high-performance GNSS receiver supports GPS, Galileo and GLONASS constellations and precision augmentation (SBAS). The BLE gateway - together with the veratron smartphone and tablet apps – allows the NMEA 2000® data to be available on your mobile device. Thanks to its reduce installation footprint – which makes it smallest GPS receiver in the market – the veratron GO device can be mounted almost everywhere in your boat. Powered by the NMEA 2000 network, it doesn’t need any additional wiring other than the standard drop cable, and is protocol certification ensures the maximum interoperability with your boat network. PORTABLE DASHBOARD The NavDash app is the easiest way to display your vessel data on your mobile device. The most complete app for vessel monitoring, it allows to easily setup your system and instantly have a direct view on your engine, read your sailing performance data, keep an eye on your batteries status and receive alarm notifications. Discover more on veratron.com

Screenshots

iStreams Solent4 screens
NavDash4 screens

Verdict

The call

The clearest difference is in-app purchases: NavDash at none against iStreams Solent's 9. NavDash also leads on iOS requirement (13.0 vs 18.2). iStreams Solent's advantage is update cadence (every 3 months vs every 15 months) and review sentiment (33% vs 25%). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

iStreams Solent ships an update every 3 months, NavDash every 15 months. The most recent releases landed on September 20, 2026 and June 10, 2026 respectively.

Scorecard5 real differences · 5 level
iStreams Solent versus NavDash: the parameters behind the verdict, then further details
ParameteriStreams SolentNavDash
PriceFreeFree
Rating—2.0 (3 ratings) — better
Positive reviews33.3% of reviews — better25.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 3 months — betterEvery 15 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.213.0 — better
Further details — not scored
Size38 MB14 MB
Age rating4+4+
DeveloperNavtech SoftwareVeratron AG

Customer experience

iStreams Solent

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

NavDash

All ratings3 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews4 reviews
Positive25.0%
Neutral0.0%
Negative75.0%

In-app purchases

6 purchases

iStreams Solent

One-time6
  • Unlock 'Set' tool$1.99
  • Portsmouth Tides 2019$2.99
  • 6 Month Subscription2 variants$2.99
Show 3 more
  • 1 Month Subscription2 variants$2.99
  • Unlock CTS tool$3.99
  • 1 Year Subscription2 variants$5.99
None

NavDash

No in-app purchases

Questions

Is iStreams Solent free?
iStreams Solent is free to download, with in-app purchases available.
Is NavDash free?
NavDash is free to download, with no in-app purchases.
Do iStreams Solent or NavDash have ads?
Neither iStreams Solent nor NavDash shows ads.
Which is updated more often, iStreams Solent or NavDash?
iStreams Solent ships an update every 3 months, and NavDash every 15 months. Most recently, iStreams Solent was updated on September 20, 2026 and NavDash on June 10, 2026.

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