Comparison

Astro Lithium vs MAR

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

Head to head
About

Astro Lithium

Monitor your Astro Lithium battery status in real time via Bluetooth. View state of charge, voltage, current, temperature, and estimated runtime. Receive smart alerts and manage multiple batteries.

Highlights
  • Real-time battery monitoring
  • Estimated runtime calculation
  • Smart status alerts
  • Multi-battery support
  • Troubleshooting guides
  • Dealer locator
Features
Read full description

Monitor your Astro Lithium battery in real time from your phone. Connect to any Astro Lithium battery via Bluetooth and instantly see your state of charge, voltage, current, temperature, power output, charge cycles, and estimated runtime remaining. FEATURES Real-Time Monitoring: See voltage, current, temperature, power, and state of charge updated live every two seconds. Estimated Runtime: Know how much battery life you have left. Uses a rolling average to give you a stable estimate even with variable loads like trolling motors. Smart Status Alerts: The app tells you exactly what your battery is doing. Idle, charging, discharging, fully charged, or low battery. If a protection event occurs, you get a plain-language explanation of what happened and what to do. Multi-Battery Support: Connect to multiple Astro Lithium batteries at once. Name each one (Trolling Motor, House Bank, etc.) so you always know which is which. Works With All Astro Lithium Batteries: Compatible with all bluetooth enabled Astro Lithium systems across our entire 12V, 24V, 36V, and 48V lineup. Built-In Support: Access troubleshooting guides, product manuals, dealer locator, and contact us directly from inside the app. Designed and built by Astro Lithium in Macclenny, Florida.​​​​​​​​​​​​​​​​

About

MAR

Features
Read full description

The Mar-AI app streamlines boat manufacturing by integrating hardware, providing real-time data analytics, and leveraging AI insights, all while ensuring seamless connectivity and enhanced operational efficiency.

Screenshots

Astro Lithium3 screens
MAR4 screens

Verdict

The call

Astro Lithium and MAR are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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.

UpkeepUpdate frequency

Astro Lithium ships an update every 5 months, MAR every 3 months. The most recent releases landed on September 20, 2026 and September 22, 2026 respectively.

ScorecardNo meaningful differences
Astro Lithium versus MAR: the parameters behind the verdict, then further details
ParameterAstro LithiumMAR
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 5 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.0 — better15.6
Further details — not scored
Size17 MB84 MB
Age rating4+4+
DeveloperAstro Lithium, LLCLocmarine Telematics, LLC

In-app purchases

None

Astro Lithium

No in-app purchases

None

MAR

No in-app purchases

Questions

Is Astro Lithium free?
Astro Lithium is free to download, with no in-app purchases.
Is MAR free?
MAR is free to download, with no in-app purchases.
Do Astro Lithium or MAR have ads?
Neither Astro Lithium nor MAR shows ads.
Which is updated more often, Astro Lithium or MAR?
Astro Lithium ships an update every 5 months, and MAR every 3 months. Most recently, Astro Lithium was updated on September 20, 2026 and MAR on September 22, 2026.

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