# OnlineSat vs BoatM3

The clearest difference is update cadence: BoatM3 at every 3 weeks against OnlineSat's every 8 months. BoatM3 also leads on iOS requirement (13.0 vs 16). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

OnlineSat ships an update every 8 months, BoatM3 every 3 weeks. Both last shipped on September 17, 2026.

## The numbers

| Metric | OnlineSat | BoatM3 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 105 MB | 29 MB |
| Requires iOS | 16 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fernando Lara](https://appshunter.io/developer/1438458950) | [Alexandre Auler](https://appshunter.io/developer/1485334988) |

## What reviewers say

### OnlineSat

[App page](https://appshunter.io/ios/app/onlinesat/id1438458951)

**In-app purchases:** none


### BoatM3

[App page](https://appshunter.io/ios/app/boatm3/id1485334989)

Track your boat's equipment, service history, and navigation logs. Access manufacturer-recommended maintenance plans and manage nautical market transactions, including buying/selling vessels and finding marine services.

**Highlights:** Boat equipment monitoring, Service history management, Digital logbook, Manufacturer maintenance plans, Nautical marketplace, Marine service finder

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OnlineSat free?

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

### Is BoatM3 free?

BoatM3 is free to download, with no in-app purchases.

### Do OnlineSat or BoatM3 have ads?

Neither OnlineSat nor BoatM3 shows ads.

### Which is updated more often, OnlineSat or BoatM3?

OnlineSat ships an update every 8 months, and BoatM3 every 3 weeks. Most recently, OnlineSat was updated on September 17, 2026 and BoatM3 on September 17, 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.*