# NaAVIC vs Mariner Studio

NaAVIC and Mariner Studio both sit at 5.0 stars, but that hides the real split: 100% of Mariner Studio's written reviews are positive against 33% of NaAVIC's. Mariner Studio also leads on update cadence (every 2 weeks vs every 6 months) and ratings volume (3 vs 1). NaAVIC's advantage is in-app purchases (none vs 3) and iOS requirement (12.0 vs 18.4). On price, rating, ads and device support there is nothing between them.

Both are free to download. Mariner Studio sells 3 in-app purchases, starting at $2.99 per month. NaAVIC asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for NaAVIC against 5.0 for Mariner Studio. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews are what separate them: 33% of NaAVIC's written reviews are positive against 100% of Mariner Studio's.

NaAVIC ships an update every 6 months, Mariner Studio every 2 weeks. The most recent releases landed on October 1, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | NaAVIC | Mariner Studio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/naavic/id1421111946/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/mariner-studio/id6744251295/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | 33.3% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 20 MB | 278 MB |
| Requires iOS | **12.0** | 18.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [IIC](https://appshunter.io/developer/1421111945) | [Osprey Applications LLC](https://appshunter.io/developer/1619576372) |

## What reviewers say

### NaAVIC

[App page](https://appshunter.io/ios/app/naavic/id1421111946)

This free marine navigation app simplifies boating for recreational users. It offers chart support, route planning, and offline capabilities to explore new locations safely and reliably. Connect with other boaters and share your voyages.

**Highlights:** Electronic chart support (IHO S-57/S-52), Route creation and navigation, Offline navigation capability, Boat position, speed, and course display, Notifications and alarms, Recreational hotspot finder, Distance measurement

**Features:** macOS Compatibility

**In-app purchases:** none


### Mariner Studio

[App page](https://appshunter.io/ios/app/mariner-studio/id6744251295)

Plan safe and efficient voyages with real-time marine data, interactive maps, and comprehensive weather forecasts. Study for FCC and USCG exams with extensive question banks and practice modes. Features smart route planning, tidal predictions, and navigation aid information.

**Highlights:** Interactive marine maps with live data, Intelligent route and voyage planning, Comprehensive marine weather forecasts, FCC & USCG exam preparation, Tidal height and current predictions, Navigation aid and marine facility database, Seamless data sync across devices

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mariner Pro Monthly | $2.99 | per month |
| Mariner Studio Pro Monthly | $4.99 | per month |
| Mariner Studio Pro Annual | $34.99 | per year |


## Frequently asked questions

### Is NaAVIC free?

NaAVIC is free to download, with no in-app purchases.

### Is Mariner Studio free?

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

### Which has better reviews, NaAVIC or Mariner Studio?

NaAVIC and Mariner Studio are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.

### Do NaAVIC or Mariner Studio have ads?

Neither NaAVIC nor Mariner Studio shows ads.

### Which is updated more often, NaAVIC or Mariner Studio?

NaAVIC ships an update every 6 months, and Mariner Studio every 2 weeks. Most recently, NaAVIC was updated on October 1, 2026 and Mariner Studio on October 14, 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.*