Comparison

iRegatta Pro vs SailViewer

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

Head to head
About

iRegatta Pro

This app provides tactical regatta and cruising navigation for sailors. It offers detailed sailing data, wind direction analysis, start line countdowns, and waypoint navigation. It also supports NMEA0183 instrument data and AIS information over WiFi.

Highlights
  • Real-time sailing data display
  • Wind direction and shift indicator
  • Regatta start line countdown
  • Waypoint navigation with camera assist
  • Track recording and export
  • NMEA0183 and AIS data integration
  • Apple Watch app for data viewing and tracking
Features
Read full description

iRegatta is a tactical Regatta application as well as a crusing navigation application for the iPhone. The PRO version automatically includes the basic, NMEA0183 and AIS in-app-purchases that are available in the regular version, and offers additional in-app-purchases. The build-in GPS unit and the unique graphical possibilities of the iPhone, makes it ideal for such an application. If you have a iPhone anyway, this is a cheap way to introduce you to the benefits of a GPS device, to help you leverage your regatta sailing performance. A downside is of cause the fact that your iPhone/iPad is not waterproof! But there are products out there, where you can put your iDevice into, to make it waterproof and still be able to operate it. In this way you can either mount it near your other instruments on your keelboat or strap it to your arm if you are sailing a dinghy. Features: Main View. Here you can see your 4 most important readouts, fore instance Heading, Speed, VMG and Performance. There also is a lift indicator, showing you if you have been lifted by a wind shift, and graphs showing the development in your speed and VMG over a configurable amount of time and a permormance bar. Wind direction. Set your wind direction by storing your heading while sailing on upwind on starboard and port tack, or simply type it in. Start view. Here you have your count down (including sync), and you can mark your starting line and iRegatta will calculate the distance to the line and indicate the favorite line end, if wind direction is set. Statistics view. View your current position and trip odometer and max speed since last reset. You'll also see a polar diagram with your speed and VMG (wind speed dependent). Waypoints. Navigate to your favorite pre-stored waypoints, or create a new temporary waypoint by cross bearing using the iPhone internal camera, or by distance/bearing. Tracking. Record your track and view it on the map or export it for further analysis to your computer. Instead of internal GPS you can get instrument information over WiFi from NMEA0183 instruments. AIS data received over WiFi will be displayed in a Radar-like view. iRegatta also comes with a watch app, which will allow you to view data on your watch as well as operate the start line features. Besides that, the watch app will track your sailing as an activity and help you close your activity circles using HealthKit.. Read more detailed information on the apps web page.

About

SailViewer

Features
Read full description

SailViewer turns sailing GPS and instrument logs into an interactive debrief on iPhone and iPad. Import a supported sailing file, choose the logs you want to open, and explore the race from several angles: • Track views with boats, courses, selections, and optional map backgrounds • Tables and graphs for comparing selected values • Polar analysis for speed and angle relationships • Start, Race, Boat, and Maneuvers views when supported by the data • Local image sharing from supported analysis windows SailViewer includes synthetic sample logs. Samples start closed, so you decide when to open them. You can import SW2, SLV, GPX, KML, NMEA, VTK, FIT, VKX, supported CSV sources, and supported ZIP archives. Your imported sailing files stay on your device unless you explicitly share them. Ordinary iPhones, including large iPhones, have permanently free local access and do not require weekly license checks. All iPads, including iPad mini, and this iPad app running on an Apple-silicon Mac are free through 31 December 2026. These devices require an internet connection for initial activation and at least once every seven days. Free access ends on 1 January 2027 at 00:00 UTC, when a paid subscription will be required. Purchasing will require a future app update; this release cannot take payments. There is no automatic charge. If access expires, your local library is retained. Optional error reports and usage summaries are off by default. Support reports are sent only when you choose to send them, and original sailing logs are not attached automatically. This is the new SailViewer app and is separate from the legacy SailViewer/TruSailViewer product. Automatic transfer from the legacy app is not promised; keep your original files and import supported formats into this app.

Screenshots

iRegatta Pro4 screens
SailViewer3 screens

Verdict

The call

The clearest difference is price: SailViewer at Free against iRegatta Pro's $19.99. SailViewer also leads on in-app purchases (none vs 5) and update cadence (every 3 days vs every 5 weeks). iRegatta Pro's advantage is device support (4 vs 2) and iOS requirement (15.6 vs 17.0). On ads 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

SailViewer is free to download; iRegatta Pro costs $19.99 up front. iRegatta Pro sells 5 one-off in-app purchases. SailViewer asks for nothing beyond the download.

UpkeepUpdate frequency

iRegatta Pro ships an update every 5 weeks, SailViewer every 3 days. Both last shipped on October 24, 2026.

Scorecard5 real differences · 5 level
iRegatta Pro versus SailViewer: the parameters behind the verdict, then further details
ParameteriRegatta ProSailViewer
Price$19.99Free — better
Rating4.1 (8 ratings) — better—
Positive reviews55.6% of reviews—
Number of ratings8 — better—
Update frequencyEvery 5 weeksEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaid—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad
Requires iOS15.6 — better17.0
Further details — not scored
Size57 MB37 MB
Age rating4+4+
DeveloperZifigoMaster Sailing jdoo

In-app purchases

5 purchases

iRegatta Pro

One-time5
  • iRegatta Pro Sailplan$1.99
  • eyeRegatta sync$1.99
  • iRegatta Pro Pebble$2.99
Show 2 more
  • Apple Watch integration$2.99
  • iRegatta Pro Race Analysis$3.99
None

SailViewer

No in-app purchases

Questions

Is iRegatta Pro free?
iRegatta Pro costs $19.99, and also offers in-app purchases.
Is SailViewer free?
SailViewer is free to download, with no in-app purchases.
Do iRegatta Pro or SailViewer have ads?
Neither iRegatta Pro nor SailViewer shows ads.
Which is updated more often, iRegatta Pro or SailViewer?
iRegatta Pro ships an update every 5 weeks, and SailViewer every 3 days. Most recently, iRegatta Pro was updated on October 24, 2026 and SailViewer on October 24, 2026.

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