Comparison

RC Circuit vs V6 Soft Starters

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

Head to head
About

RC Circuit

Calculate RC charging and filter circuits, including time constants and cutoff frequencies. Find component values from these parameters or get voltage at specific times. Save and share data easily.

Highlights
  • Calculate time constant
  • Find component values
  • Get voltage at time t
  • Calculate cutoff frequency
  • Save data to CSV
  • Upload CSV via AirDrop/iCloud Drive
  • Multi-language support
Features
Read full description

This app is used to calculate the RC charging and RC filter circuit. It is suitable for hobbyist or electronic engineer. Features * Calculate time constant from R, C * Find component value R,C from time constant * Get voltage at time t in RC charging / discharging * Calculate cutoff frequency by R, C * Find component value R,C from cutoff frequency * Save data to CSV files * Upload CSV via AirDrop / iCloud Drive * Support English, Traditional Chinese, Simplified Chinese, German, French, Italian, Spanish, Portuguese, Japanese

About

V6 Soft Starters

Features
Read full description

Select a starter, diagnose issues and get support for Power Electronics soft starters from the palm of your hand with the V6 Soft Starters app. QuickPick Product Selection Provide some basic details including industry, application, and motor size, and the V6 Soft Starters app will suggest a suitably rated model for each available product range. Select a recommendation to see a full list of features and products specifications, with the ability to share the document at the push of a button, or request a quote from your nearest Power Electronics sales representative. QR Scanner (for V6 series starters) The app allows operators to read (via QR code) and share important information about trip conditions with electrical support staff no matter where they are. This means your machinery will be back at work in double quick time. During operation the V6 soft starter monitors and protects you motor and machine. When a fault condition is detected the starter trips to protect your system and displays the trip cause on the local control panel. If the operator is not trained or qualified to diagnose and reset the system, the app allows them to upload and e-mail operational and trip data to support staff. It’s as simple as taking a photo and forwarding a message. Support Contacts Database Need support for your V6 soft starter? The app is pre-populated with contact details for your local power electronics office. If you have contact details for your local installer or for a personal support contact, you can also add these details to the app for safekeeping and quick sharing of QR data or quote requests. Reference Tools Quickly calculate motor FLC and required enclosure ventilation flow with the convenient calculators built in to the V6 Soft Starters app.

Screenshots

RC Circuit4 screens
V6 Soft Starters4 screens

Verdict

The call

The clearest difference is in-app purchases: V6 Soft Starters at none against RC Circuit's 1. V6 Soft Starters also leads on update cadence (every 3 days vs every 6 months). On price, ads, device support and iOS requirement 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. RC Circuit sells 1 one-off in-app purchase. V6 Soft Starters asks for nothing beyond the download.

UpkeepUpdate frequency

RC Circuit ships an update every 6 months, V6 Soft Starters every 3 days. The most recent releases landed on October 5, 2026 and October 13, 2026 respectively.

Scorecard2 real differences · 7 level
RC Circuit versus V6 Soft Starters: the parameters behind the verdict, then further details
ParameterRC CircuitV6 Soft Starters
PriceFreeFree
Rating4.8 (5 ratings) — better—
Number of ratings5 — better—
Update frequencyEvery 6 monthsEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size16 MB19 MB
Age rating4+4+
DeveloperSiu Yuen HoPower Electronics

In-app purchases

1 purchases

RC Circuit

One-time1
  • Unlock Pro features$0.99
None

V6 Soft Starters

No in-app purchases

Questions

Is RC Circuit free?
RC Circuit is free to download, with in-app purchases available.
Is V6 Soft Starters free?
V6 Soft Starters is free to download, with no in-app purchases.
Do RC Circuit or V6 Soft Starters have ads?
Neither RC Circuit nor V6 Soft Starters shows ads.
Which is updated more often, RC Circuit or V6 Soft Starters?
RC Circuit ships an update every 6 months, and V6 Soft Starters every 3 days. Most recently, RC Circuit was updated on October 5, 2026 and V6 Soft Starters on October 13, 2026.

Other comparisons