# Mercury Diagnostic App vs SciFish Evaluation

The clearest difference is update cadence: SciFish Evaluation at monthly against Mercury Diagnostic App's every 11 months. 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.

Mercury Diagnostic App ships an update every 11 months, SciFish Evaluation monthly. The most recent releases landed on November 5, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Mercury Diagnostic App | SciFish Evaluation |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/mercury-diagnostic-app/id1491041580/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Monthly** |
| Monetization | Free | — |
| Size | 73 MB | 81 MB |
| Requires iOS | **10.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mercury Marine LLC](https://appshunter.io/developer/1777822540) | [ACCSP](https://appshunter.io/developer/913302655) |

## What reviewers say

### Mercury Diagnostic App

[App page](https://appshunter.io/ios/app/mercury-diagnostic-app/id1491041580)

This app allows Mercury dealer technicians to perform basic diagnostics on SmartCraft® engines. It provides live engine data, fault information, runtime history, and custom data lists. Full functionality requires a license key and a VesselView Mobile module.

**Highlights:** View live SmartCraft® engine data, Create custom data lists, Obtain active faults, View runtime history, Enter maintenance records, Wireless communication via Bluetooth

**Features:** Vision Pro support

**In-app purchases:** none


### SciFish Evaluation

[App page](https://appshunter.io/ios/app/scifish-evaluation/id1532263541)

**In-app purchases:** none


## Frequently asked questions

### Is Mercury Diagnostic App free?

Mercury Diagnostic App is free to download, with no in-app purchases.

### Is SciFish Evaluation free?

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

### Do Mercury Diagnostic App or SciFish Evaluation have ads?

Neither Mercury Diagnostic App nor SciFish Evaluation shows ads.

### Which is updated more often, Mercury Diagnostic App or SciFish Evaluation?

Mercury Diagnostic App ships an update every 11 months, and SciFish Evaluation monthly. Most recently, Mercury Diagnostic App was updated on November 5, 2026 and SciFish Evaluation on November 7, 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.*