# TZ iBoat vs OceanFishMap

The clearest difference is ratings volume: TZ iBoat at 885 against OceanFishMap's 1. TZ iBoat also leads on chart position (#83 vs unranked) and update cadence (every 8 days vs every 2 weeks). OceanFishMap's advantage is rating (5.0 vs 4.6). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. TZ iBoat sells 13 in-app purchases, starting at $2.99 per month and OceanFishMap sells 4 in-app purchases, starting at $100.00 per month. Whichever you choose, the download price is not the number that matters.

OceanFishMap holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: TZ iBoat has 885 ratings behind it against 1, so its average is the more settled of the two.

TZ iBoat ships an update every 8 days, OceanFishMap every 2 weeks. The most recent releases landed on October 29, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | TZ iBoat | OceanFishMap |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (885 ratings)](https://appshunter.io/ios/app/tz-iboat-marine-navigation/id1312769833/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/oceanfishmap/id6448851622/reviews)** |
| Number of ratings | **885** | 1 |
| Positive reviews | 79.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 2 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#83** | — |
| Size | 428 MB | 128 MB |
| Requires iOS | **14.2** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nobeltec, Inc.](https://appshunter.io/developer/1312769832) | [OceanBytes Holding LLC](https://appshunter.io/developer/1686599948) |

## What reviewers say

### TZ iBoat

[App page](https://appshunter.io/ios/app/tz-iboat-marine-navigation/id1312769833)

**Currently charting:** #83 Top Grossing · Navigation (US App Store)

Navigate the seas with advanced marine charts, GPS, and AIS data, even offline. This app offers detailed bathymetry, community-contributed map data, and dynamic features for safe boating, sailing, and fishing.

**Highlights:** Offline marine charts, GPS and route planning, AIS Online tracking, Community map contributions, Dynamic mooring and lighting, Advanced fishing tools, Tides and tidal currents

**Features:** Vision Pro support

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Essential Subscription | $2.99 | per month |
| Premium Subscription | $9.99 | per month |
| Great Lakes | $19.99 | per year |
| Canada East and North | $19.99 | per year |
| Canada West | $19.99 | per year |
| USA | $19.99 | per year |
| Bahamas | $30.99 | per year |
| Central America & Caribbean | $30.99 | per year |
| Elite Subscription | $39.99 | per month |
| Western Mediterranean | $40.99 | per year |
| Eastern Mediterranean | $61.99 | per year |
| AIS module | $8.99 | one-time |
| Radar module | $49.99 | one-time |

**What reviewers like**

- 🚀 Easy to use
- 🚀 Accurate charts
- 🚀 Useful features (weather, tides, currents, etc.)
- 🚀 Good integration with Furuno radar and AIS
- 🚀 Seamless cloud sync between devices

**What reviewers complain about**

- 🐛 Occasional crashes or freezing
- 🐛 Inaccurate or outdated charts in some areas
- 🐛 Anchor alarm not loud enough
- 🐛 Difficulty importing/managing routes and waypoints
- 🔋 Battery drain on mobile devices

**Reported bugs**

- GPS position not updating reliably while moving
- Radar overlay not functioning properly
- Compatibility issues with older devices or iOS versions

**Requested features**

- Automatic routing and trip planning
- Improved satellite imagery and overlays
- Better integration with other marine electronics
- More customization options for data displays
- Ability to mirror camera feeds as a rear-view


### OceanFishMap

[App page](https://appshunter.io/ios/app/oceanfishmap/id6448851622)

This app provides fishing boats with oceanographic data and expert recommendations to optimize fishing operations. It allows users to record and share catch information, view vessel positions on a map, and send emergency messages.

**Highlights:** Oceanographic data updates, Expert fishing recommendations, Offline data viewing, Vessel position on map, Catch reporting and sharing, Emergency messaging

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coastal | $100.00 | per month |
| Coastal + AIS | $149.00 | per month |
| Pro | $200.00 | per month |
| Pro + AIS | $249.00 | per month |


## Frequently asked questions

### Is TZ iBoat free?

TZ iBoat is free to download, with in-app purchases available.

### Is OceanFishMap free?

OceanFishMap is free to download, with in-app purchases available.

### Which has better reviews, TZ iBoat or OceanFishMap?

OceanFishMap is rated higher. TZ iBoat averages 4.6 out of 5 from 885 ratings, while OceanFishMap averages 5.0 from 1 ratings.

### Do TZ iBoat or OceanFishMap have ads?

Neither TZ iBoat nor OceanFishMap shows ads.

### Which is updated more often, TZ iBoat or OceanFishMap?

TZ iBoat ships an update every 8 days, and OceanFishMap every 2 weeks. Most recently, TZ iBoat was updated on October 29, 2026 and OceanFishMap on October 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*