Khons EVSE vs EV Calc Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Khons EVSE
This program allows users to configure and control KHONS Company's charging devices. It enables charging management, device setup, and real-time status checks for connected equipment.
- Device charging control
- Device configuration
- Query device status
- Manage charging sessions
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The configuration and control program of KHONS Company's chargers is used for device charging control, device configuration, and querying the status of devices.
EV Calc Pro
This professional-grade electrical calculator assists EV charger installers and electricians with accurate, NEC-compliant calculations. It offers multiple specialized calculators for load analysis, wire sizing, voltage drop, and more, all accessible offline.
- EV Charger Load Calculator
- EV Site Load Calculator
- Wire Size Calculator
- Voltage Drop Analysis
- Breaker Sizing
- Offline functionality
- NEC code references
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EV Calc Pro is the professional-grade electrical calculator built specifically for EV charger installers and electricians. Stop doing math on paper — get accurate, NEC-compliant results in seconds. CALCULATORS INCLUDED: EV Charger Load — Complete circuit analysis for EV charger installations EV Site Load — Full service load calculation for multi-charger sites (NEC 220, 625) Wire Size — NEC conductor sizing with temperature and conduit corrections Voltage Drop — Voltage drop analysis with pass/fail results Breaker Sizing — Overcurrent protection sizing per NEC Transformer Sizing — kVA transformer sizing for EV service upgrades Conduit Fill — NEC 358/344 conduit fill percentage calculator Grounding Conductor — Equipment grounding conductor sizing Ampacity Derating — Temperature and conduit fill derating per NEC 310 Box Fill — NEC 314.16 box fill calculation Power Calculator — Watts, amps, and volts conversion WHY EV CALC PRO: • Built for the field — fast inputs, instant results • 100% offline — no internet required, works on job sites • NEC code references on every calculator • Dark mode for working in low-light conditions • Export and share results via text, email, or any app • Free — no subscription, no paywalls Part of the Charge Rigs family of tools for EV charging professionals.
Screenshots
Verdict
The clearest difference is review sentiment: EV Calc Pro at 100% against Khons EVSE's 0%. EV Calc Pro also leads on rating (5.0 vs 1.0). On price, ratings volume, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
EV Calc Pro holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 0% of Khons EVSE's written reviews are positive against 100% of EV Calc Pro's.
| Parameter | Khons EVSE | EV Calc Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 1 |
| Update frequency | Every 3 weeks | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 36 MB | 62 MB |
| Age rating | 17+ | 4+ |
| Developer | Chengdu Khons Technology Co., Ltd. | Charge Rigs, LLC |
Customer experience
Khons EVSE
EV Calc Pro
In-app purchases
Khons EVSE
No in-app purchases
EV Calc Pro
No in-app purchases
Questions
Is Khons EVSE free?
Is EV Calc Pro free?
Which has better reviews, Khons EVSE or EV Calc Pro?
Do Khons EVSE or EV Calc Pro have ads?
Other comparisons
