E vs SWTCH Install
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
E
This app provides comprehensive electrical calculations based on the Canadian Electric Code. It assists electricians and engineers with tasks like wire and conduit sizing, fusing, and load calculations, offering detailed results and saving them for sharing or printing.
- Canadian Electric Code calculations
- Wire and conduit sizing
- Fusing and overload calculations
- Motor and transformer load calculations
- Custom panel legends
- Voltage drop calculations
- Box fill calculations
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E-Calc Master is an electrical application for calculating many common electrical problems. This app is an essential tool for all electricians and electrical engineers. Unlike other similar apps E-Calc not only calculates simple formulas but returns code results including wire sizing, conduit sizing, fusing, overload size, ground and bond size and much more based on the Canadian Electric Code. The features of this app are too long to list but here are a few of the key ones; - All calculations are saved and can be shared or printed. - Universal app runs on iPhone and iPad. - Calculate any motor load and get maximum overcurrent, maximum overload, minimum wire, minimum pipe, and minimum bond wire size. - Calculate transformer size and get FLA, pipe size, fuse and breaker size, bond size, on both primary and secondary. - Create custom panel legends and print to scale. - Calculate the allowable ampacity of any wire type and deration situation. - Calculate maximum number of similar sized wires in a given pipe size. - Calculate required bonding sizes. - Easily calculate complicated voltage drop calculations. Get results for percentage voltage drop as well as maximum lengths of runs and wire size. Derating is also supported. - Calculate minimum burial depths for any situation including special situations including mechanical protection, under slab, and rock encased. - Calculate any box fill situation in mL and cubic inch. - Calculate recommeneded torque settings for all varieties of lugs and terminations. - Convert many common units with the built in conversion calculator. - Includes handy diagrams for service masts, kitchen wiring and communication cabling. - Calculate linear expansion of conduits. - Ohm's law calculator. - Strap spacing calculator. - Voltage unbalance calculator. - Find NEMA codes and specs of receptacles. - Calculate residential single dwelling service sizes.
SWTCH Install
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SWTCH Install helps electricians kick off EV charger installations the right way. Core Capabilities: - Commissioning Starts Here: The app identifies the right commissioning workflow based on the site’s hardware and network configuration. - Project Overview: View a history of your assigned installs, project statuses, and key site details—all in one place. - Capture Key Details: Upload images of routers, POE switches, panels, and charger labels—no paper forms needed. - Live Connectivity Check: Instantly verify WiFi signal strength and charger online status.
Screenshots
Verdict
The clearest difference is price: SWTCH Install at Free against E's $13.99. SWTCH Install also leads on iOS requirement (15.5 vs 17.6). On update cadence, 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
SWTCH Install is free to download; E costs $13.99 up front. Neither carries in-app purchases, so what you see is what you pay.
E ships an update every 5 weeks, SWTCH Install every 3 weeks. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.
| Parameter | E | SWTCH Install |
|---|---|---|
| Price | $13.99 | Free — better |
| Rating | 3.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 5 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.6 | 15.5 — better |
| Further details — not scored | ||
| Size | 37 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | Snappy Appz Inc. | SWTCH Energy Inc |
In-app purchases
E
No in-app purchases
SWTCH Install
No in-app purchases









