# iNavX vs Tide Graph

The clearest difference is price: iNavX at Free against Tide Graph's $1.99. iNavX also leads on ratings volume (22K vs 1.6K). Tide Graph's advantage is ads (none vs shown) and review sentiment (70% vs 44%). On rating, update cadence, in-app purchases and monetization model there is nothing between them.

iNavX is free to download; Tide Graph costs $1.99 up front. iNavX sells 11 in-app purchases, starting at $9.99 per month and Tide Graph sells 11 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for iNavX against 4.8 for Tide Graph. That said, the two scores are not equally well evidenced: iNavX has 22K ratings behind it against 1.6K, so its average is the more settled of the two. Written reviews are what separate them: 44% of iNavX's written reviews are positive against 70% of Tide Graph's.

iNavX ships an update every 5 weeks, Tide Graph every 6 weeks. The most recent releases landed on September 25, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | iNavX | Tide Graph |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [4.8 (22K ratings)](https://appshunter.io/ios/app/inavx-marine-navigation/id286616280/reviews) | [4.8 (1.6K ratings)](https://appshunter.io/ios/app/tide-graph/id288420737/reviews) |
| Number of ratings | **22K** | 1.6K |
| Positive reviews | 43.7% of reviews | **70.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 5 weeks** | Every 6 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | #116 | **#32** |
| Size | 298 MB | 29 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple TV, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [NavX Studios LLC](https://appshunter.io/developer/286616283) | [Brainware LLC](https://appshunter.io/developer/288420740) |

## What reviewers say

### iNavX

[App page](https://appshunter.io/ios/app/inavx-marine-navigation/id286616280)

**Currently charting:** #116 Top Grossing · Navigation (US App Store)

This app provides comprehensive marine navigation tools, including worldwide chart coverage, weather forecasts, and AIS integration. It allows users to plan routes, track their position, and connect with onboard instruments for a complete boating experience.

**Highlights:** Worldwide marine chart access, Real-time GPS plotting, Waypoint and route management, GRIB weather forecasts, AIS integration, Nautical instrument connectivity

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Theyr Premium - Mobile (Monthly) for iOS | $9.99 | per month |
| iNavX Professional+ USA | $29.99 | per year |
| Navionics+ USA/Canada (iPhone) | $29.99 | per year |
| Navionics+ Caribbean (iPhone) | $44.99 | per year |
| Theyr Premium Weather | $49.99 | per year |
| iNavX Professional+ USA Canada | $59.99 | per year |
| C-MAP World Chart | $59.99 | per year |
| Explorer Chartbooks - Bahamas | $69.99 | per year |
| Navionics+ USA/Canada (iPad) | $79.99 | per year |
| Navionics+ Caribbean (iPad) | $79.99 | per year |
| AIS Live | $99.99 | per year |

**What reviewers like**

- 🚀 Accurate and precise navigation
- 📊 Comprehensive charting and navigation features
- 🛠️ Customizable instrument settings
- 🔄 Redundancy across devices
- 💨 Reliable performance over many years

**What reviewers complain about**

- 🤔 Clunky and unintuitive user interface
- 🗺️ Cumbersome chart management and downloading
- 🔋 Battery drain issues
- 💰 Expensive subscription model for charts
- 🐛 Stability issues and crashes

**Reported bugs**

- Inability to remove waypoints
- Inconsistent behavior when transitioning International Date Line
- Disappearing or missing chart data

**Requested features**

- Seamless chart switching and panning
- Integrated tidal and current data
- Support for more chart types and providers
- Improved route planning and editing tools
- Automatic chart updates and management


### Tide Graph

[App page](https://appshunter.io/ios/app/tide-graph/id288420737)

**Currently charting:** #32 Top Paid · Navigation (US App Store)

This app provides interactive tide graphs with over 10 billion predictions for US coastal stations. It also displays sunrise, sunset, moonrise, moonset, and moon phases. Save locations and graphs for easy access.

**Highlights:** Interactive tide graphs, Sunrise, sunset, moonrise, moonset tracking, Moon phase display, Save recent locations, GPS location finder, Save graphs for later

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 2015 Tides and Currents | $0.99 | one-time |
| 2016 Tides and Currents | $0.99 | one-time |
| 2017 Tides and Currents | $0.99 | one-time |
| 2018 Tides and Currents | $0.99 | one-time |
| 2019 Tides and Currents | $0.99 | one-time |
| 2020 Tides and Currents | $0.99 | one-time |
| 2021 Tides and Currents | $0.99 | one-time |
| 2022 Tides and Currents | $0.99 | one-time |
| 2023 Tides and Currents | $0.99 | one-time |
| 2024 Tides and Currents | $0.99 | one-time |
| 2026 Tides and Currents | $0.99 | one-time |

**What reviewers like**

- ⭐ Accurate tide data
- 📊 Excellent visual representation of tides
- 🗓️ Detailed tide information including moon phases
- 🔍 Reliable for many locations
- 💰 Good value for the price

**What reviewers complain about**

- 🌐 Requires internet connection to function
- 🗺️ Limited to US and Alaska locations only
- 🔍 Difficult to find desired location
- 🕰️ Slow loading times in some cases
- 🔧 Compatibility issues with newer devices

**Reported bugs**

- Tide data inaccuracies reported in some locations
- Crashes and freezes when switching between stations
- Date/time display issues in certain cases

**Requested features**

- Offline mode for tide data
- Ability to save favorite locations
- Larger tide graph for better visibility
- Option to switch between metric and imperial units
- Automatic updates to latest tide information


## Frequently asked questions

### Is iNavX free?

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

### Is Tide Graph free?

Tide Graph costs $1.99, and also offers in-app purchases.

### Which has better reviews, iNavX or Tide Graph?

iNavX and Tide Graph are both rated 4.8 out of 5 on the App Store, from 22K and 1.6K ratings respectively.

### Do iNavX or Tide Graph have ads?

iNavX shows ads; Tide Graph does not.

### Which is updated more often, iNavX or Tide Graph?

iNavX ships an update every 5 weeks, and Tide Graph every 6 weeks. Most recently, iNavX was updated on September 25, 2026 and Tide Graph on September 22, 2026.

### Which is more popular, iNavX or Tide Graph?

iNavX currently peaks at #116 in the App Store charts, and Tide Graph at #32. Chart position reflects recent download velocity rather than total install base.

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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.*