Mike Holt's Electrical Toolbox vs Smart Flow Metering
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mike Holt's Electrical Toolbox
This app provides essential calculations for electricians, inspectors, contractors, and engineers. It helps determine conductor sizing, circuit protection, race sizing, and grounding conductor sizes for various electrical equipment and services.
- Conductor sizing
- Voltage drop limitations
- Circuit protection sizing
- Race sizing
- Equipment grounding conductor sizing
- Dwelling-unit service calculations
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Mike Holt, the industry leader in the electrical industry (MikeHolt.com) has created an amazing, practical and useful app for the electrician, inspector, instructor, contractor and engineer. The app contains conductor sizing (including voltage drop limitations), circuit protection sizing, race sizing, equipment grounding conductor sizing for electric heating equipment (commercial and Residential), air-conditioning equipment (commercial and Residential), motors (commercial and Residential), Transformers (commercial) , and dwelling-unit service calculations and sizing.
Smart Flow Metering
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Smart Flow makes utility meter management simple, transparent, and convenient for landlords and tenants. Whether you manage multiple properties or need an easier way to top up your meter, Smart Flow brings essential meter information, payments, statements, and alerts together in one place. FOR LANDLORDS • View your properties and connected mother meters • Monitor prepaid and postpaid utility accounts • Review balances, collections, settlements, and other charges • View active and inactive sub-meters • Track meter transactions and account activity • Access detailed statements and financial summaries • Receive important account and meter notifications • Manage multiple properties and utility accounts from one app FOR TENANTS • Access a sub-meter using its meter number • Purchase prepaid tokens using M-Pesa STK Push • View recent purchases and payment history • Review purchased units and monthly totals • Access previously issued tokens • Add and manage multiple meters • Receive useful payment and meter updates STAY INFORMED Smart Flow helps you understand what is happening across your utility accounts. Clear summaries and detailed records make it easier to follow payments, purchases, balances, and meter activity. GET HELP WHEN YOU NEED IT Access support and contact Smart Flow Metering directly from the app for account, payment, billing, or meter-related assistance. Smart Flow is designed for customers who use compatible meters and have services managed through Smart Flow Metering Ltd. Some features may depend on your meter type, account configuration, and service availability.
Screenshots
Verdict
The clearest difference is update cadence: Smart Flow Metering at monthly against Mike Holt's Electrical Toolbox's every 3 months. Mike Holt's Electrical Toolbox's advantage is iOS requirement (14.0 vs 16.4). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Mike Holt's Electrical Toolbox ships an update every 3 months, Smart Flow Metering monthly. Both last shipped on November 6, 2026.
| Parameter | Mike Holt's Electrical Toolbox | Smart Flow Metering |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (198 ratings) — better | — |
| Positive reviews | 76.7% of reviews | — |
| Number of ratings | 198 — better | — |
| Update frequency | Every 3 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 26 MB | 56 MB |
| Age rating | 4+ | 4+ |
| Developer | Mike Holt Enterprises | Kulmi Digital Agency Limited |
Bugs and requests
Mike Holt's Electrical Toolbox
Reported bugs
4 issues- Cannot email results
- Video player widescreen exit bug
- Previous calculation data not erased
- App content is outdated
Requested features
6 requests- Increase transformer capacity to 225kva
- Add option to print load calc
- Update to NEC 2020
- Add completion system for video series
- Refine user interface for better usability
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- Add more features, willing to pay extra
Smart Flow Metering
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Mike Holt's Electrical Toolbox
No in-app purchases
Smart Flow Metering
No in-app purchases
Questions
Is Mike Holt's Electrical Toolbox free?
Is Smart Flow Metering free?
Do Mike Holt's Electrical Toolbox or Smart Flow Metering have ads?
Which is updated more often, Mike Holt's Electrical Toolbox or Smart Flow Metering?
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