Comparison

Fogstar vs Simple Solar

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

Head to head
About

Fogstar

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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 β€’ State of charge, voltage, current and power β€’ Remaining capacity, cycle count and temperatures β€’ Whether the battery is charging, discharging or resting CELLS β€’ Every cell's voltage, the spread between highest and lowest, and when the BMS is balancing β€’ A cell drifting out of balance is the earliest warning you get – long before the battery lets you down HISTORY β€’ Readings recorded automatically while you're connected β€’ Charts of charge, voltage, current and temperature over hours, days or months β€’ Up to 90 days kept on the phone; export it all to CSV ALERTS β€’ Low charge, high or low temperature, winter guard and protection trips β€’ Set your own thresholds and quiet hours, so nothing wakes you at 3am MORE β€’ Multiple batteries and battery banks in one app – see the whole system totalled, or drill into any single pack β€’ Tools for real installs: battery recovery for a pack that won't wake, connection diagnostics and a timestamped event log β€’ 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

Simple Solar

Features
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Simple Solar is the fastest, simplest way to control your SunSynk inverter. Make changes in seconds, not minutes β€” no clutter, no confusing menus, just clear control. Edit battery schedules instantly with a powerful visual editor, or use quick toggles to override charging, discharging, and grid export on the fly. Monitor your solar generation, battery status, and home energy consumption in real time from one clean, reliable dashboard. Core Features: β€’ Edit battery schedules in seconds with an intuitive visual editor β€’ Instant on/off toggles for battery charge, discharge, and export β€’ Real-time energy flow visualisation β€’ Daily, weekly, and monthly energy statistics β€’ Support for multiple plants and parallel inverters Simple Solar Pro unlocks advanced automation: β€’ Smart Tariff Integration – Automatically charge during cheap Octopus Intelligent Go slots β€’ Custom Schedules – Fine-grained time-based rules for grid and battery control β€’ Push Notifications – Alerts for low battery, high load, and system events β€’ Monthly Reports – Detailed energy summaries exportable as PDF β€’ Ad-free experience β€’ Smart Tariff Automation – Supports Octopus Intelligent Go, Cosy, Flux and Go, plus E.ON Next, EDF GoElectric, British Gas, ScottishPower, Good Energy and fully custom tariffs. Automatically charge your battery during the cheapest slots, including extra cheap β€œbump” slots your provider signals through the day, and sell stored energy back during peak export periods or before your guaranteed cheap period starts. β€’ Solar-Aware Charging – Only tops up from the grid by as much as your predicted solar won’t cover, helping you avoid over-buying energy. β€’ Custom Schedules – Fine-grained time-of-use rules for grid and battery control. β€’ Push Notifications – Alerts for low battery, high load and system events. β€’ Monthly Reports – Detailed energy summaries exportable as PDF. β€’ Ad-free experience. Terms of Use: https://minutiamobile.com/marketing/simpleSolar/terms.html Privacy Policy: https://minutiamobile.com/marketing/simpleSolar/privacy.html

Screenshots

Fogstar4 screens
Simple Solar4 screens

Verdict

The call

The clearest difference is in-app purchases: Fogstar at none against Simple Solar's 4. Simple Solar's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

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

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

Both are free to download. Simple Solar sells 4 in-app purchases, starting at $6.99 per month. Fogstar asks for nothing beyond the download.

UpkeepUpdate frequency

Fogstar ships an update every 2 months, Simple Solar every 3 weeks. The most recent releases landed on September 12, 2026 and September 16, 2026 respectively.

Scorecard2 real differences Β· 4 level
Fogstar versus Simple Solar: the parameters behind the verdict, then further details
ParameterFogstarSimple Solar
PriceFreeFree
Update frequencyEvery 2 monthsEvery 3 weeks β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 β€” better16.6
Further details β€” not scored
Size24 MB69 MB
Age rating17+4+
DeveloperFogstar DriftMinutia Mobile

In-app purchases

None

Fogstar

No in-app purchases

4 purchases

Simple Solar

Subscriptions2
  • Automation7 Days trial$6.991 Month
  • Yearly Subscription7 Days trial$59.001 Year
One-time2
  • Remove Ads$2.99
  • Remove Ad's$2.99

Questions

Is Fogstar free?
Fogstar is free to download, with no in-app purchases.
Is Simple Solar free?
Simple Solar is free to download, with in-app purchases available.
Do Fogstar or Simple Solar have ads?
Neither Fogstar nor Simple Solar shows ads.
Which is updated more often, Fogstar or Simple Solar?
Fogstar ships an update every 2 months, and Simple Solar every 3 weeks. Most recently, Fogstar was updated on September 12, 2026 and Simple Solar on September 16, 2026.

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