Voltage Drop. vs VoltKit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Voltage Drop.
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Voltage Drop is a practical electrical calculation toolkit for electrical engineers, technicians, electricians, and students. Three tools in one: • VOLTAGE DROP CALCULATOR — Computes voltage drop for single/three-phase and copper/aluminum, and checks the result against your chosen 1.5%, 3% or 5% limit. It recommends the minimum cross-section that satisfies BOTH the voltage-drop limit and the current-carrying capacity. • CABLE SIZING — Finds the smallest cable cross-section required for your load and line, and lists the cable types available in that size. • CABLE CATALOG — Provides the technical features of common low-voltage cables (NYA, NYAF, NYM, H05VV-F, NYY, NAYY, NHXMH, N2XH, N2XH FE180), including current-carrying capacity tables per cross-section (in air / in conduit / in ground), right inside the app. FEATURES • Single-phase and three-phase systems • Copper and aluminum conductor support • 1.5% / 3% / 5% voltage-drop limit check with cross-section recommendation • "Suitable cables" suggestion after each calculation, with one-tap access to cable details • Cable technical-feature tables (including halogen-free cables) • Calculation history: save, reopen, delete • Works fully offline, ad-free • 9 language support PRIVACY The app does not collect any personal data. No account is required, and the values you enter never leave your device.
VoltKit
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VoltKit is the fast, no-nonsense electrical calculator built for the field. VOLTAGE DROP — Single-phase, three-phase and DC. AWG or mm², feet or meters, copper or aluminum. Instant pass/fail against the 3% / 5% guidelines, with the recommended minimum conductor size. WIRE SIZE (Pro) — Enter load, distance and voltage. Get the minimum conductor that satisfies BOTH voltage drop and ampacity, with each constraint shown separately. OHM'S LAW & POWER — Enter any two values, get the rest. Power factor supported for AC. WHY ELECTRICIANS CHOOSE VOLTKIT • 100% offline — no account, no ads, no tracking, no permissions • Shows the math — every result includes the formula with your values plugged in • Built for the field — dark, glove-friendly, instant results as you type • One-time purchase — Pro is yours forever, no subscription COMING IN FREE UPDATES FOR PRO USERS Ampacity with derating, conduit fill, box fill, motor calculations, EV charger circuit sizing. Results are estimates for reference only. Always verify with the current edition of applicable codes and a licensed professional. National Electrical Code® and NEC® are registered trademarks of the National Fire Protection Association, which is not affiliated with this app.
Screenshots
Verdict
The clearest difference is in-app purchases: Voltage Drop. at none against VoltKit's 1. Voltage Drop. also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.4). On price and ads 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
Both are free to download. VoltKit sells 1 one-off in-app purchase. Voltage Drop. asks for nothing beyond the download.
| Parameter | Voltage Drop. | VoltKit |
|---|---|---|
| Price | Free | Free |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 18 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | Eyup Ensar ORAL | Kenan Islamoglu |
In-app purchases
Voltage Drop.
No in-app purchases
VoltKit
- VoltKit Pro$4.99
Questions
Is Voltage Drop. free?
Is VoltKit free?
Do Voltage Drop. or VoltKit have ads?
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