Comparison

Mercury Diagnostic App vs LiTime

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Mercury Diagnostic App

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
Read full description

Mercury Marine’s Diagnostic App (MDA) enables Mercury dealer technicians to easily switch between VesselView Mobile rigged boats (or a module carried with them) throughout the day to do basic diagnostics on SmartCraft® engines with the phone in their pockets. MDA provides the ability to create custom data lists to view live engine data, obtain active faults, view runtime history, create reports, and more. The full functionality of the app is enabled with a license key obtained from Mercury Marine and works in conjunction with the Bluetooth Low Energy VesselView Mobile module. When the app is open and connected to your vessel it requires a continuous connection and therefore may impact the battery life of your device. Features: • View live SmartCraft® engine data and create custom data lists with: RPM, Battery Voltage, Engine Temperature, Engine Hours, Oil Temperature, Oil Pressure, Coolant Temperature, Sea Temperature and more! • View active fault and corresponding descriptive fault information • View engine hours and runtime history • Enter Maintenance records • Communicate wirelessly to SmartCraft® engines through a Bluetooth Low Energy connection and a connected VesselView Mobile module • Allows for normal phone operation – call, text, streaming music, search the web, etc. while connected to a Mercury Marine SmartCraft® engine ************ IMPORTANT INFORMATION ************************* • MDA is limited to use by Mercury Marine Dealers. A software license key is required to use this app. • MDA is designed to work with the VesselView Mobile module that may already be rigged on a boat, or may be purchased through your dealership or through a link inside the app. A firmware update to the VesselView Mobile module may be required to use MDA. *Requires version 1.0.3 firmware or later. • The VesselView Mobile module works with SmartCraft® capable engines built since 2003 (40HP and up). One to four engines can be viewed simultaneously. • The VesselView Mobile module simply connects to a SmartCraft® connector located either at the helm or on the engine. • Continued use of GPS running in the background can dramatically decrease battery life.

About

LiTime

Monitor your smart energy storage battery in real-time via Bluetooth. Remotely control charging modes and view battery levels, temperature, and speeds. This user-friendly app offers effortless energy management.

Highlights
  • Real-time battery monitoring
  • Bluetooth connectivity
  • Remote charging control
  • View battery levels
  • Monitor temperature and speeds
  • User-friendly interface
Features
Read full description

Experience unparalleled energy monitoring! We proudly present LiTime, your dedicated companion for smart energy storage battery. Key Features: Real-time Monitoring: Utilizing Bluetooth technology, check your energy storage battery's status anytime, anywhere—monitoring battery levels, temperature, and charging/discharging speeds. Remote Control: Conveniently manage your battery remotely, adjusting charging modes to suit your energy needs. User-Friendly: With a sleek and intuitive interface, LiTime is easy for anyone to navigate. Empowering you to effortlessly manage your energy! LiTime, where energy meets freedom. Download now and connect intelligently to the future of energy!

Screenshots

Mercury Diagnostic App3 screens
LiTime4 screens

Verdict

The call

The clearest difference is update cadence: LiTime at every 2 weeks against Mercury Diagnostic App's every 11 months. LiTime also leads on ratings volume (277 vs 1). Mercury Diagnostic App's advantage is iOS requirement (10.0 vs 13.0). On price, rating, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 3.0 for Mercury Diagnostic App against 3.1 for LiTime. That said, the two scores are not equally well evidenced: LiTime has 277 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Mercury Diagnostic App ships an update every 11 months, LiTime every 2 weeks. The most recent releases landed on November 5, 2026 and November 12, 2026 respectively.

Scorecard3 real differences · 7 level
Mercury Diagnostic App versus LiTime: the parameters behind the verdict, then further details
ParameterMercury Diagnostic AppLiTime
PriceFreeFree
Rating3.0 (1 ratings)3.1 (277 ratings) — better
Positive reviews—24.3% of reviews
Number of ratings1277 — better
Update frequencyEvery 11 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better13.0
Further details — not scored
Size73 MB101 MB
Age rating4+17+
DeveloperMercury Marine LLCShenzhen Litime Technology Co.,Ltd

Customer experience

Mercury Diagnostic App

All ratings1 ratings
Positive0.0%
Neutral100.0%
Negative0.0%

LiTime

All ratings264 ratings
Positive44.7%
Neutral8.0%
Negative47.3%
Written reviews177 reviews
Positive24.3%
Neutral7.9%
Negative67.8%

Bugs and requests

Mercury Diagnostic App

Not enough reviews yet to summarise bugs or requests.

LiTime

Reported bugs

4 issues
  • App crashes or freezes after updates
  • Login/account issues prevent access
  • Battery status not updating correctly
  • Compatibility problems with newer devices

Requested features

4 requests
  • Ability to monitor individual cell voltages
  • Option to set low battery charge thresholds
  • Offline mode for remote usage without internet
  • Improved battery balancing and management

In-app purchases

None

Mercury Diagnostic App

No in-app purchases

None

LiTime

No in-app purchases

Questions

Is Mercury Diagnostic App free?
Mercury Diagnostic App is free to download, with no in-app purchases.
Is LiTime free?
LiTime is free to download, with no in-app purchases.
Which has better reviews, Mercury Diagnostic App or LiTime?
LiTime is rated higher. Mercury Diagnostic App averages 3.0 out of 5 from 1 ratings, while LiTime averages 3.1 from 277 ratings.
Do Mercury Diagnostic App or LiTime have ads?
Neither Mercury Diagnostic App nor LiTime shows ads.
Which is updated more often, Mercury Diagnostic App or LiTime?
Mercury Diagnostic App ships an update every 11 months, and LiTime every 2 weeks. Most recently, Mercury Diagnostic App was updated on November 5, 2026 and LiTime on November 12, 2026.

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