# Mariners Log vs Boat Maintenance Planner

The clearest difference is update cadence: Boat Maintenance Planner at every 3 weeks against Mariners Log's every 4 months. Mariners Log's advantage is iOS requirement (11.0 vs 16.4). 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.

Mariners Log ships an update every 4 months, Boat Maintenance Planner every 3 weeks. The most recent releases landed on October 15, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Mariners Log | Boat Maintenance Planner |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Size | 57 MB | 74 MB |
| Requires iOS | **11.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kengineer Limited](https://appshunter.io/developer/1619488060) | [robert van der plas](https://appshunter.io/developer/1763725642) |

## What reviewers say

### Mariners Log

[App page](https://appshunter.io/ios/app/mariners-log/id1619488058)

**Features:** macOS Compatibility

**In-app purchases:** none


### Boat Maintenance Planner

[App page](https://appshunter.io/ios/app/boat-maintenance-planner/id6648753958)

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

**In-app purchases:** none


## Frequently asked questions

### Is Mariners Log free?

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

### Is Boat Maintenance Planner free?

Boat Maintenance Planner is free to download, with no in-app purchases.

### Do Mariners Log or Boat Maintenance Planner have ads?

Neither Mariners Log nor Boat Maintenance Planner shows ads.

### Which is updated more often, Mariners Log or Boat Maintenance Planner?

Mariners Log ships an update every 4 months, and Boat Maintenance Planner every 3 weeks. Most recently, Mariners Log was updated on October 15, 2026 and Boat Maintenance Planner on September 27, 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.*