SupplyMaster vs ProWarm
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.
ProWarm
Control your underfloor heating system remotely with this app. It offers effortless and intelligent management for convenience and efficiency, putting full heating control at your fingertips anytime, anywhere.
- Effortless control
- Intelligent heating management
- Remote access
- Anytime, anywhere control
- Modern living integration
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ProWarm is your all-in-one solution for effortless, intelligent control of your underfloor heating system. Designed for convenience, efficiency, and modern living, the ProWarm app puts full heating control at your fingertips—anytime, anywhere.
Screenshots
Verdict
The clearest difference is rating: ProWarm at 5.0 against SupplyMaster's 3.0. ProWarm also leads on review sentiment (22% vs 11%). SupplyMaster's advantage is update cadence (every 5 weeks vs every 10 months) and iOS requirement (11.0 vs 13.0). 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.
ProWarm holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 11% of SupplyMaster's written reviews are positive against 22% of ProWarm's.
SupplyMaster ships an update every 5 weeks, ProWarm every 10 months. Both last shipped on June 9, 2026.
| Parameter | SupplyMaster | ProWarm |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 11.4% of reviews | 21.8% of reviews — better |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 5 weeks — better | Every 10 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 11.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 18 MB | 191 MB |
| Age rating | 4+ | 12+ |
| Developer | TIMEGUARD LTD | ProWarm |
Customer experience
SupplyMaster
ProWarm
In-app purchases
SupplyMaster
No in-app purchases
ProWarm
No in-app purchases
