I used this app all over the Bahamas and it served me perfectly. I like how it mimics the Chart books which I studied long before using this app.
Estimated from the grossing charts of Oct 23, 2026 in the 53 countries we track, and ratings growth on the App Store.
From our daily snapshots of every grossing chart and daily ratings counts.
| Sep 24, 2026 | $299.9K a month |
| Sep 25, 2026 | $302K a month |
| Sep 26, 2026 | $22.3K a month |
| Sep 27, 2026 | $22.9K a month |
| Sep 28, 2026 | $22.2K a month |
| Sep 29, 2026 | $22.3K a month |
| Sep 30, 2026 | $22K a month |
| Oct 1, 2026 | $22.1K a month |
| Oct 2, 2026 | $21.7K a month |
| Oct 3, 2026 | $21.7K a month |
| Oct 4, 2026 | $21.7K a month |
| Oct 5, 2026 | $21.7K a month |
| Oct 6, 2026 | $21.7K a month |
| Oct 7, 2026 | $21.7K a month |
| Oct 8, 2026 | $21.6K a month |
| Oct 9, 2026 | $21.6K a month |
| Oct 10, 2026 | $499.8K a month |
| Oct 11, 2026 | $21.6K a month |
| Oct 12, 2026 | $21.6K a month |
| Oct 13, 2026 | $319.4K a month |
| Oct 14, 2026 | $313.6K a month |
| Oct 15, 2026 | $291.9K a month |
| Oct 16, 2026 | $269.2K a month |
| Oct 17, 2026 | $362K a month |
| Oct 18, 2026 | $365K a month |
| Oct 19, 2026 | $337.7K a month |
| Oct 20, 2026 | $365.5K a month |
| Oct 21, 2026 | $98.8K a month |
| Oct 22, 2026 | not in a grossing chart |
| Oct 23, 2026 | $22.5K a month |
| Oct 22, 2026 | 3.2K ratings |
| Oct 23, 2026 | 3.2K ratings |
Measured from the store, not estimated.
From the latest 159 reviews on the United States App Store, Oct 8, 2018 to Sep 29, 2026: 13% are 1 or 2 stars. Open a theme to read what people wrote.
5 of the 1 and 2 star reviews.
★★★★★ I really want to love TZ iBoat, but I can't safely use it. Compared to the Navionics maps and app, it's simply not a viable option. Shallow Tampa Bay, Florida is my main sail area and this is routinely off by 5+ feet…
★★★★★ Nothing but “oops, something went wrong” error page.
★★★★★ You can pull up a tide or current prediction for a particular point within the app but there is no capability to get this data for a future date which renders this feature useless from a planning standpoint.
4 of the 1 and 2 star reviews.
★★★★★ The app does not provide a trial period.
★★★★★ It's not worth the money.
3 of the 1 and 2 star reviews.
★★★★★ Nothing but “oops, something went wrong” error page.
★★★★★ I had the app and created an account on my phone.
★★★★★ Why so much info to log in?
2 of the 1 and 2 star reviews.
★★★★★ Constant position lost alerts.
★★★★★ I promptly deleted the app.
Nothing stands out.
35 of the 4 and 5 star reviews.
★★★★★ All with intuitive user interface when on the go.
★★★★★ Very useful and kinda simple to use.
★★★★★ Easy to use and accurate.
16 of the 4 and 5 star reviews.
★★★★★ Easy to use and accurate.
★★★★★ Easy to use and very accurate.
★★★★★ Works great with a variety of gateways.
8 of the 4 and 5 star reviews.
★★★★★ All with intuitive user interface when on the go.
★★★★★ I switched to TZ from another navigation app due to the interface with Furuno radar and love it!
★★★★★ Logical, intuitive, and the color scheme used on screen supports delimitation “soundings” based off most current publishings of marine charts publishers and aids to navigation (ATONS).
7 of the 4 and 5 star reviews.
★★★★★ And to top it off, the customer service is wonderful.
★★★★★ Customer service is excellent and quick to respond to questions!!!
★★★★★ I contacted TZ iboat support and they asked for the logs.
6 of the 4 and 5 star reviews.
★★★★★ Very useful and kinda simple to use.
★★★★★ This is particularly helpful plannning a route.
★★★★★ This is an absolute savior for when you're in a new area! Also being able to pair with a unit is an amazing feature.
Found by matching words and phrases in the reviews, not read by a person. A review can count toward more than one theme.
Latest reviews, United States App Store.
I used this app all over the Bahamas and it served me perfectly. I like how it mimics the Chart books which I studied long before using this app.
I miss being able to insert a point into a course and dragging it to a news spot. The app is not real straight forward as the old Nobletec Nav….. but its similar enough
Navionics is way better
Best way to plan a long distance trip. Never had an issue on any of our passages. My first choice in mobile navigation tools.
Sadly I report that I prefer the previous version to the new enhanced release. Why? Because I want an app that is simple and can be used on an iPad mounted on my inner helm station and far enough away so that it’s uncomfortable to reach tiny plus and minus zoom buttons or use fingers to enlarge or reduce the zoom factor. The previous version had an optional zoom slider that could be reached on the screen’s right side and controlled easily by my right hand stabilized by the iPad’s frame. I have requested twice to have this feature added back but to no avail. Also the new version which is also Android compatible just seems to have too many marketing attractants that I should be able to turn off but cannot figure out how. As a navigation instructor this is frustrating to the max. I would love to rewrite this review to be more positive but only will if TZ-Nobeltec responds with some better news.
Super easy to operate
Same category, earning about as much.
Apple Search Ads this app ran in the last 90 days, from Apple's public ad repository.
Where this app is buying and earning its users. Each link opens pre filtered.
Most repeated terms in the listing. Highlighted ones also appear in the title.
Released Jan 2, 2018. Current version shipped Oct 22, 2026.
Prices, ranks and reviews are per country. Revenue above is already worldwide.