# Boating Calcs vs BilgeBuddy

The clearest difference is price: BilgeBuddy at Free against Boating Calcs's $1.99. BilgeBuddy also leads on update cadence (every 6 weeks vs every 7 months) and review sentiment (100% vs 81%). Boating Calcs's advantage is iOS requirement (9.0 vs 13.0). On rating, ratings volume, ads and in-app purchases there is nothing between them.

BilgeBuddy is free to download; Boating Calcs costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

BilgeBuddy holds the better App Store score, 4.9 against 4.8. Both are backed by a comparable volume of ratings — 27 and 15 respectively. Written reviews point the same way: 81% of Boating Calcs's written reviews are positive against 100% of BilgeBuddy's.

Boating Calcs ships an update every 7 months, BilgeBuddy every 6 weeks. The most recent releases landed on October 21, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Boating Calcs | BilgeBuddy |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [4.8 (27 ratings)](https://appshunter.io/ios/app/boating-calcs/id410592998/reviews) | **[4.9 (15 ratings)](https://appshunter.io/ios/app/bilgebuddy/id6468819407/reviews)** |
| Number of ratings | **27** | 15 |
| Positive reviews | 81.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 17 MB | 36 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Calculated Industries](https://appshunter.io/developer/370406449) | [BilgeBuddy](https://appshunter.io/developer/1710603189) |

## What reviewers say

### Boating Calcs

[App page](https://appshunter.io/ios/app/boating-calcs/id410592998)

This app offers over 120 boating calculations and unit conversions, along with 120 reference pages. Easily solve a variety of boating-related problems, save and share your calculations, and quickly find the tools you need. It includes extensive reference material across various boating disciplines.

**Highlights:** Over 120 boating calculations, Extensive unit conversions, 120+ reference pages, Save and open calculations, Add calculators to favorites, Email calculation inputs and results, Search functionality

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

**In-app purchases:** none


### BilgeBuddy

[App page](https://appshunter.io/ios/app/bilgebuddy/id6468819407)

This app allows you to remotely monitor your boat's bilge system, battery health, and location. Receive instant notifications for potential issues like flooding, system malfunctions, or unexpected movement, ensuring peace of mind and proactive problem-solving.

**Highlights:** Remote bilge system monitoring, Flooding detection and sinking prevention, Battery system health monitoring, Break-away alerts and location services, Impact detection, Easy installation with common pumps

**In-app purchases:** none


## Frequently asked questions

### Is Boating Calcs free?

Boating Calcs costs $1.99, with no in-app purchases.

### Is BilgeBuddy free?

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

### Which has better reviews, Boating Calcs or BilgeBuddy?

BilgeBuddy is rated higher. Boating Calcs averages 4.8 out of 5 from 27 ratings, while BilgeBuddy averages 4.9 from 15 ratings.

### Do Boating Calcs or BilgeBuddy have ads?

Neither Boating Calcs nor BilgeBuddy shows ads.

### Which is updated more often, Boating Calcs or BilgeBuddy?

Boating Calcs ships an update every 7 months, and BilgeBuddy every 6 weeks. Most recently, Boating Calcs was updated on October 21, 2026 and BilgeBuddy on October 23, 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.*