SupplyMaster vs Electrical Certificate App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SupplyMaster
Control your immersion heater or lighting remotely via your phone or tablet. Save money by adjusting schedules from anywhere, ensuring you only use energy when needed. Offers multiple operating modes for flexible control.
- Remote programming
- Energy saving
- Auto, Permanent Off, Permanent On modes
- Holiday mode
- Advance and Boost functions
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Timeguard Supplymaster can be used to provide convenient, easy programming of your immersion heater or lighting from your phone or tablet. Changes to programmes can be made from any location, which will enable the user to save money by cancelling unwanted programmes during periods of unexpected absence. There are 4 operating modes, Auto, Permanent off, permanent on, and holiday. There are also advance and boost functions. For use with the Timeguard FSTWiFi and FSTWiFiTGV WiFi controlled fused connection units.
Electrical Certificate App
This app helps electrical engineers generate various types of certificates, manage customer information, and create invoices. It offers secure data storage and syncs with a desktop application for seamless workflow management.
- Generate BS7671 electrical certificates
- Create invoices and estimates
- Customer relationship management (CRM)
- Auto-save and cloud sync
- Add custom branding to certificates
- Secure data encryption
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Electrical Certificate App is the essential software for all Electrical Engineers. ELECTRICAL CERTIFICATES INCLUDED: - Minor Works - Three Circuit Minor Works - Domestic Electrical Installation Certificate - Electrical Installation Condition Report - Electrical Installation Certificate - Electrical Danger Notice - Visual Inspection - Earthing & Bonding Certificate - Electrical Isolation Certificate FEATURES - Create Invoices and Estimates - Manage your customers from our easy to use CRM system - Auto save option - Automatically syncs with our desktop application - View completed certificates whenever you need them - View all paid / unpaid invoices - Add your own logo, company name and more to give your certificates your own personal touch. - The system is encrypted with 248bit bank level encryption, so your data is safe and sound. Subscription 1 Month Subscription | Unlimited Access to Certificates | Unlimited Certificates | Free Storage of Certificates | £14.99 Per month By using this app, you agree to Apple’s Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ For our Privacy Policy, visit: https://help.tradeapps.co.uk/en/article/privacy-policy-1rwkmw5
Screenshots
Verdict
The clearest difference is review sentiment: Electrical Certificate App at 54% against SupplyMaster's 11%. Electrical Certificate App also leads on update cadence (every 2 weeks vs every 5 weeks). SupplyMaster's advantage is in-app purchases (none vs 2) and iOS requirement (11.0 vs 15.6). On price, ads 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. Electrical Certificate App sells 2 in-app purchases, starting at $19.99 per month. SupplyMaster asks for nothing beyond the download.
SupplyMaster ships an update every 5 weeks, Electrical Certificate App every 2 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | SupplyMaster | Electrical Certificate App |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) — better | — |
| Positive reviews | 11.4% of reviews | 53.8% of reviews — better |
| Number of ratings | 3 — better | — |
| Update frequency | Every 5 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Subscription |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 18 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | TIMEGUARD LTD | Trade Apps LTD |
Customer experience
SupplyMaster
Electrical Certificate App
In-app purchases
SupplyMaster
No in-app purchases
Electrical Certificate App
- Monthly Subscription$19.991 Month
- yearly Subscription$199.991 Year
Questions
Is SupplyMaster free?
Is Electrical Certificate App free?
Do SupplyMaster or Electrical Certificate App have ads?
Which is updated more often, SupplyMaster or Electrical Certificate App?
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