Comparison

Fogstar Drift vs Cobra

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

Head to head
About

Fogstar Drift

Monitor your leisure battery's real-time status, including voltage, current, and cell health. Receive instant alerts for critical parameters and track historical data for optimal performance and safety.

Highlights
  • Real-time battery parameter display
  • Single cell voltage and alarm monitoring
  • Cell comparison and balancing data
  • Temperature and critical parameter warnings
  • Historical alarm records
  • Bluetooth connectivity
Features
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Fogstar Drift is the companion app for Fogstar Drift lithium (LiFePO4) leisure batteries. It connects to your battery over Bluetooth and shows you exactly what it's doing – at a glance on the dashboard, in detail down to each cell, and over time in History. LIVE DASHBOARD • State of charge, voltage, current and power • Remaining capacity, cycle count and temperatures • Whether the battery is charging, discharging or resting CELLS • Every cell's voltage, the spread between highest and lowest, and when the BMS is balancing • A cell drifting out of balance is the earliest warning you get – long before the battery lets you down HISTORY • Readings recorded automatically while you're connected • Charts of charge, voltage, current and temperature over hours, days or months • Up to 90 days kept on the phone; export it all to CSV ALERTS • Low charge, high or low temperature, winter guard and protection trips • Set your own thresholds and quiet hours, so nothing wakes you at 3am MORE • Multiple batteries and battery banks in one app – see the whole system totalled, or drill into any single pack • Tools for real installs: battery recovery for a pack that won't wake, connection diagnostics and a timestamped event log • Report a problem in one tap – the app sends Fogstar a full diagnostic bundle with a reference number, so we can help without the back-and-forth PRIVACY No ads, no tracking. Everyday monitoring is Bluetooth only – your battery's data never leaves your phone unless you send a support report. Cloud features run on Amazon Web Services in Europe. Works with Fogstar Drift batteries fitted with the Bluetooth module. If anything isn't right, use Report a problem in Settings and we'll take a look.

About

Cobra

Read full description

Take control of your lawn with Cobra. The smartest way to manage your robotic lawn mower.

Screenshots

Fogstar Drift4 screens
Cobra4 screens

Verdict

The call

Fogstar Drift and Cobra 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 Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

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

UpkeepUpdate frequency

Fogstar Drift ships an update monthly, Cobra every 6 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

ScorecardNo meaningful differences
Fogstar Drift versus Cobra: the parameters behind the verdict, then further details
ParameterFogstar DriftCobra
PriceFreeFree
Positive reviews13.3% of reviews—
Update frequencyMonthly — betterEvery 6 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.015.0
Further details — not scored
Size26 MB63 MB
Age rating4+9+
DeveloperFogstar DriftHenton and Chattell Ltd.

In-app purchases

None

Fogstar Drift

No in-app purchases

None

Cobra

No in-app purchases

Questions

Is Fogstar Drift free?
Fogstar Drift is free to download, with no in-app purchases.
Is Cobra free?
Cobra is free to download, with no in-app purchases.
Do Fogstar Drift or Cobra have ads?
Neither Fogstar Drift nor Cobra shows ads.
Which is updated more often, Fogstar Drift or Cobra?
Fogstar Drift ships an update monthly, and Cobra every 6 weeks. Most recently, Fogstar Drift was updated on November 3, 2026 and Cobra on October 31, 2026.

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