# YDIS Smart vs BilgeBuddy

The clearest difference is review sentiment: BilgeBuddy at 100% against YDIS Smart's 43%. BilgeBuddy also leads on rating (4.9 vs 3.7) and update cadence (every 6 weeks vs every 3 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

BilgeBuddy holds the better App Store score, 4.9 against 3.7. Both are backed by a comparable volume of ratings — 16 and 15 respectively. Written reviews point the same way: 43% of YDIS Smart's written reviews are positive against 100% of BilgeBuddy's.

YDIS Smart ships an update every 3 months, BilgeBuddy every 6 weeks. The most recent releases landed on October 24, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | YDIS Smart | BilgeBuddy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (16 ratings)](https://appshunter.io/ios/app/ydis-smart/id1062728896/reviews) | **[4.9 (15 ratings)](https://appshunter.io/ios/app/bilgebuddy/id6468819407/reviews)** |
| Number of ratings | **16** | 15 |
| Positive reviews | 42.9% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 7 MB | 36 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Yamaha Motor Co., Ltd.](https://appshunter.io/developer/337268490) | [BilgeBuddy](https://appshunter.io/developer/1710603189) |

## What reviewers say

### YDIS Smart

[App page](https://appshunter.io/ios/app/ydis-smart/id1062728896)

This application allows authorized Yamaha dealers to access diagnostic functions for Yamaha outboard motors on their smartphones. It requires a dedicated adapter and registration information for the PC version of the diagnostic system.

**Highlights:** Perform inspections of Yamaha outboard motors, Access self-diagnostic system functions, Use on smartphones, Requires dedicated adapter, Requires YDIS PC version registration, Enable speedometer display with GPS

**Features:** 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 YDIS Smart free?

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

### Is BilgeBuddy free?

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

### Which has better reviews, YDIS Smart or BilgeBuddy?

BilgeBuddy is rated higher. YDIS Smart averages 3.7 out of 5 from 16 ratings, while BilgeBuddy averages 4.9 from 15 ratings.

### Do YDIS Smart or BilgeBuddy have ads?

Neither YDIS Smart nor BilgeBuddy shows ads.

### Which is updated more often, YDIS Smart or BilgeBuddy?

YDIS Smart ships an update every 3 months, and BilgeBuddy every 6 weeks. Most recently, YDIS Smart was updated on October 24, 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.*