FireAlarmGuy vs ChargeRight
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FireAlarmGuy
This utility app provides two essential tools for fire alarm technicians. It features a calculator for determining DMX dip switch settings and a decoder for understanding battery manufacturing date codes, streamlining fieldwork.
- DMX Dip Switch Calculator
- Battery Date Code Decoder
- Device addressing assistance
- Battery production date lookup
- Fieldwork simplification
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FireAlarmGuy is the ultimate tool for fire alarm technicians, combining two essential features in one app: DMX Dip Switch Calculator – Instantly find the correct dip switch positions for device addressing. Just enter the address, and get the right settings in seconds. Battery Date Code Decoder – Quickly decode manufacturing date codes for sealed lead-acid (SLA) batteries. Enter the code to determine the production date. Built by a fire alarm tech, for fire alarm techs, FireAlarmGuy makes fieldwork faster and easier. Download now and simplify your job!
ChargeRight
Determine if your home's electrical panel can support an EV charger with a professional load calculation. Get a clear report based on NEC code, saving you money on unnecessary upgrades.
- EV charger sizing calculator
- NEC 220.82 load calculation
- AI-powered panel photo analysis
- Electrician call script
- Shareable assessment report
- Homeowner-focused guidance
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Can your electrical panel support an EV charger? Find out in minutes with a real NEC load calculation -- no electrician visit needed. ChargeRight gives homeowners clear, code-based answers about their panel capacity before committing to expensive electrical work. Built by a Master Electrician, not a tech company or an installation broker. HOW IT WORKS 1. Photograph your panel -- open the door so the breakers are visible. 2. Answer questions about your home -- panel size, square footage, heating, and the appliances you already run. 3. Pick your EV -- the circuit is sized to the driving you actually do, not to the biggest charger an installer can sell you. 4. Get your report ($69.99) -- your load calculation, your panel's spare capacity, and what to tell your electrician. WHAT YOU GET • A real NEC load calculation, the same math a licensed electrician runs before quoting you • AI analysis of your panel photo for visible safety concerns • Your calculated load, your panel's safe capacity, and the headroom left over • A charger size matched to your driving • A word-for-word script for the call with your electrician • A shareable report link you can open from any browser WHY IT MATTERS J.D. Power found only 28% of EV owners needed panel-specific work, even though ESFI found 65% were told they did. A proper load calculation can save you $2,000-$4,500 by avoiding an upgrade you do not need. Don't accept "you need an upgrade" without seeing the math. BUILT BY AN ELECTRICIAN, FOR HOMEOWNERS ChargeRight was founded by Jason Walls, a Master Electrician with EVITP certification. There is no financial incentive to upsell you here. The only job is giving you accurate numbers. • Independent -- nothing is installed and no installation is brokered • Code-based -- calculations follow the National Electrical Code • Private -- your data is used only for your report $69.99 per assessment. One time, no subscription. This is a pre-assessment, not an official inspection or a permit. Have a licensed electrician confirm before any work.
Screenshots
Verdict
The clearest difference is in-app purchases: FireAlarmGuy at none against ChargeRight's 1. FireAlarmGuy also leads on ratings volume (8 vs 1). On price, rating, update cadence 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. ChargeRight sells 1 one-off in-app purchase. FireAlarmGuy asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for FireAlarmGuy against 5.0 for ChargeRight. That said, the two scores are not equally well evidenced: FireAlarmGuy has 8 ratings behind it against 1, so its average is the more settled of the two.
FireAlarmGuy ships an update monthly, ChargeRight every 3 weeks. The most recent releases landed on October 30, 2026 and October 11, 2026 respectively.
| Parameter | FireAlarmGuy | ChargeRight |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (8 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 8 — better | 1 |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 15.0 — better |
| Further details — not scored | ||
| Size | 35 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Jack Dalton | JASON LLOYD WALLS |
Customer experience
FireAlarmGuy
ChargeRight
In-app purchases
FireAlarmGuy
No in-app purchases
ChargeRight
- EV Panel Assessment$16.99
Questions
Is FireAlarmGuy free?
Is ChargeRight free?
Which has better reviews, FireAlarmGuy or ChargeRight?
Do FireAlarmGuy or ChargeRight have ads?
Which is updated more often, FireAlarmGuy or ChargeRight?
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