Comparison

Force Converter vs Fogstar

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

Head to head
About

Force Converter

Easily convert force measurements between various units including Newton, kilonewton, ton-force, kilogram-force, and pound-force. Ideal for physicists, builders, and engineers needing quick and accurate conversions.

Highlights
  • Convert Newton (N)
  • Convert kilonewton (kN)
  • Convert ton-force (tf)
  • Convert kilogram-force (kgf)
  • Convert pound-force (lbf)
  • Fast and accurate conversions
Features
Read full description

Force Converter is the fast force converter to convert for Newton (N), kilonewton (kN), ton-force (tf), kilogram-force (kgf), pound-force (lbf). You can use it if you physicist, builder, engineer or another cool man. Convert forces quickly and as you want.

About

Fogstar

Read full description

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.

Screenshots

Force Converter2 screens
Fogstar4 screens

Verdict

The call

The clearest difference is price: Fogstar at Free against Force Converter's $1.99. Fogstar also leads on update cadence (every 4 days vs every 38 months). Force Converter's advantage is iOS requirement (13.4 vs 15.0). On ads, in-app purchases and device support 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

Fogstar is free to download; Force Converter costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Force Converter ships an update every 38 months, Fogstar every 4 days. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 6 level
Force Converter versus Fogstar: the parameters behind the verdict, then further details
ParameterForce ConverterFogstar
Price$1.99Free — better
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 38 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.4 — better15.0
Further details — not scored
Size0 MB26 MB
Age rating4+17+
DeveloperAnna FilobokFogstar Drift

In-app purchases

None

Force Converter

No in-app purchases

None

Fogstar

No in-app purchases

Questions

Is Force Converter free?
Force Converter costs $1.99, with no in-app purchases.
Is Fogstar free?
Fogstar is free to download, with no in-app purchases.
Do Force Converter or Fogstar have ads?
Neither Force Converter nor Fogstar shows ads.
Which is updated more often, Force Converter or Fogstar?
Force Converter ships an update every 38 months, and Fogstar every 4 days. Most recently, Force Converter was updated on November 3, 2026 and Fogstar on October 30, 2026.

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