kVA Calculator vs Smooth Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
kVA Calculator
Easily calculate and convert electrical values like kVA, kW, Amps, Volts, and Power Factor. Supports both single and three-phase calculations for engineers working with power systems.
- Calculate kVA, kW, Amps, Volts, Power Factor
- Single Phase Calculations
- Three Phase Calculations
- Convert between electrical units
- Intuitive input for two values to find the third
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This kVA Calculator is the essential electrical calculator for electricians and engineers. Quickly convert or calculate kVA, kW and Power Factor or kVA, Volts and Amps — no more manual formula lookups. Perfect for converting kVA to Amps, or kW to KVA when sizing generators or UPS systems. Includes Single Phase and Three Phase, kW and kVA electrical calculations. Enter any two values to calculate the third. kVA Single Phase (1-Phase) Calculations: - Calculate kVA. - Calculate Volts. - Calculate Amps. kVA Three Phase (3-Phase) Calculations: - Calculate kVA. - Calculate Volts. - Calculate Amps. kVA, Power Factor & kW Calculations: - Calculate kVA. - Calculate Power Factor. - Calculate kW. Electrical units are measured in the following: Current (I) = Amps. Power (P) = Watts (or kW). Volts (V) = Voltage. Supports dark mode and 16 languages. Simple, fast, and accurate — the kVA calculator you'll reach for every day. Trusted by the professionals since 2011.
Smooth Clock
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Turn your device into a clock with a smoothly animated background. Features: - toggle between day and night mode - choose from 4 different animations - animate random, rainbow or gray colors - 3 different animation speeds - supports the 12 and 24 hour format
Screenshots
Verdict
The clearest difference is price: kVA Calculator at Free against Smooth Clock's $0.99. Smooth Clock's advantage is ads (none vs shown). On update cadence, in-app purchases, 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
kVA Calculator is free to download; Smooth Clock costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
kVA Calculator ships an update every 6 months, Smooth Clock every 11 months. The most recent releases landed on September 21, 2026 and September 28, 2026 respectively.
| Parameter | kVA Calculator | Smooth Clock |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.4 (11 ratings) — better | — |
| Positive reviews | 41.7% of reviews | — |
| Number of ratings | 11 — better | — |
| Update frequency | Every 6 months — better | Every 11 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 10 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Pro Certs Software Ltd | Piet Jonas |
In-app purchases
kVA Calculator
No in-app purchases
Smooth Clock
No in-app purchases
Questions
Is kVA Calculator free?
Is Smooth Clock free?
Do kVA Calculator or Smooth Clock have ads?
Which is updated more often, kVA Calculator or Smooth Clock?
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