# SeeOnTrail vs Mariner Studio

The clearest difference is in-app purchases: SeeOnTrail at none against Mariner Studio's 3. On price, update cadence, 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. SeeOnTrail asks for nothing beyond the download.

SeeOnTrail ships an update every 3 weeks, Mariner Studio every 2 weeks. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | SeeOnTrail | Mariner Studio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/mariner-studio/id6744251295/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 187 MB | 278 MB |
| Requires iOS | **17.6** | 18.4 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SEEONSEA](https://appshunter.io/developer/1627017578) | [Osprey Applications LLC](https://appshunter.io/developer/1619576372) |

## What reviewers say

### SeeOnTrail

[App page](https://appshunter.io/ios/app/seeontrail/id1645056187)

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

**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 SeeOnTrail free?

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

### Is Mariner Studio free?

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

### Do SeeOnTrail or Mariner Studio have ads?

Neither SeeOnTrail nor Mariner Studio shows ads.

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

SeeOnTrail ships an update every 3 weeks, and Mariner Studio every 2 weeks. Most recently, SeeOnTrail was updated on October 27, 2026 and Mariner Studio on October 24, 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.*