Comparison

Norsk Guardian vs Pro

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

Head to head
About

Norsk Guardian

Monitor your boat's marine batteries and portable sonar batteries via Bluetooth. Receive real-time alerts for charge, voltage, and maintenance needs. Features Deep Sleep™ to prevent discharge and custom grouping for easy identification.

Highlights
  • Bluetooth connectivity
  • Real-time battery monitoring
  • Charge and voltage tracking
  • Maintenance alerts
  • Deep Sleep™ power disconnect
  • Custom battery grouping
Features
Read full description

The Norsk Lithium Guardian® App provides a Bluetooth Connection to Norsk Lithium Marine Batteries and 14.8V Portable Sonar Batteries allowing you to connect to multiple batteries simultaneously, monitor their health and charging status, and receive real-time alerts to your phone, providing you with complete confidence on and off the water. Conveniently monitor the status of your batteries in real time by tracking the charge, voltage, and remaining runtime. If the indicators are below or above the norm, the application will warn you with a push notification that the battery requires maintenance. Norsk Guardian now includes integrated Live Chat allowing you to connect with US-based customer service a representative. With the Deep Sleep™ feature, you can easily disconnect power from your battery’s terminals, eliminating phantom current draws and preventing fully discharged batteries. This convenient feature saves you from having to manually activate battery disconnect switches, ensuring your batteries remain charged and ready for use. Custom Grouping allows you to create your own naming configuration including group names and names for your individual batteries. Norsk Guardian® will remember battery groups the next time you reconnect. Experience complete confidence on and off the water with Norsk Guardian®.

About

Pro

Monitor your battery's real-time status, including voltage, current, and internal resistance. Track historical data, compare cell performance, and receive alerts for temperature, short circuits, and voltage deviations. This system helps optimize lithium battery health and lifespan.

Highlights
  • Real-time voltage, current, power monitoring
  • Battery cell comparison and balance display
  • Cell temperature and fault warnings
  • Historical data charting
  • Bluetooth connectivity to equalizer
  • Alarm prompts for critical parameters
Features
Read full description

The Pro-Guide Battery management system is connected to the active equalizer via Bluetooth to monitor the battery status, collect, store and process information during battery operation in real, time Easy for after-sales management。 1. Display real-time voltage, current, power, internal resistance and other parameter values, and display them in the form of instrument panels and numbers; 2.Record battery data using a chart timeline. Easy to use 3. Each data comparison of the battery cell, the voltage difference. Maximum voltage cell Minimum voltage cell. And the display of cell balance 4. Cell temperature warning. Real-time alarm for over temperature, short circuit, over voltage, under voltage 5. Display the real-time voltage and alarm status of all single batteries. If the reported parameters trigger the alarm value or protection value, an alarm will be prompted; 6.New fault reporting function Use a Battery Monitoring System To get the most out of a lithium battery, it’s essential to use a battery monitoring system. This will help track your battery’s charging and discharging cycles and overall health. A battery monitoring system will ensure that your battery is always in top condition and prolong its lifespan. I hope Pro-Guide can help you learn more about the convenience of using the battery Best Regards !

Screenshots

Norsk Guardian4 screens
Pro4 screens

Verdict

The call

The clearest difference is update cadence: Pro at every 2 weeks against Norsk Guardian's every 2 months. Pro also leads on rating (5.0 vs 4.8) and iOS requirement (12.0 vs 15.1). Norsk Guardian's advantage is ratings volume (4 vs 1). On price, ads, in-app purchases and monetization model 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

Pro holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

UpkeepUpdate frequency

Norsk Guardian ships an update every 2 months, Pro every 2 weeks. The most recent releases landed on October 25, 2026 and October 14, 2026 respectively.

Scorecard4 real differences · 6 level
Norsk Guardian versus Pro: the parameters behind the verdict, then further details
ParameterNorsk GuardianPro
PriceFreeFree
Rating4.8 (4 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings4 — better1
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.112.0 — better
Further details — not scored
Size73 MB69 MB
Age rating4+4+
DeveloperNorsk Inc.Battery Outfitters, Inc

Customer experience

Norsk Guardian

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Pro

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Norsk Guardian

No in-app purchases

None

Pro

No in-app purchases

Questions

Is Norsk Guardian free?
Norsk Guardian is free to download, with no in-app purchases.
Is Pro free?
Pro is free to download, with no in-app purchases.
Which has better reviews, Norsk Guardian or Pro?
Pro is rated higher. Norsk Guardian averages 4.8 out of 5 from 4 ratings, while Pro averages 5.0 from 1 ratings.
Do Norsk Guardian or Pro have ads?
Neither Norsk Guardian nor Pro shows ads.
Which is updated more often, Norsk Guardian or Pro?
Norsk Guardian ships an update every 2 months, and Pro every 2 weeks. Most recently, Norsk Guardian was updated on October 25, 2026 and Pro on October 14, 2026.

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