VERSION RSI vs HeatingSave v4
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VERSION RSI
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VERSION is a state-of-the-art simultaneous interpretation system that allows you to listen to the simultaneous interpreting languages available at any event with an excellent audio quality and really easy to use.
HeatingSave v4
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Important Note: This app requires an existing HeatingSave account and system installation. Smart Building app cuts heating & energy costs using the HeatingSave smart building system. The app controls heating/cooling, lights, smart card access control, intruder management + real-time speech alerts to warn of plant and equipment failures, security breaches and intruder detection. HeatingSave – key features: Replaces existing BMS/time-clock/controller to cut heating and electricity bills by 20-30%+. http://www.heatingsave.co.uk/business/business-products/enterprise/ Works on almost all types of heating and cooling systems including multiple boilers, any fuel including Biomass, ASHP and Solar PV Heating pattern & heating diary control, avoiding heating/cooling areas are not used (weekends, holidays, areas of variable occupancy) Heat-Loss Algorithm learns the “heat-loss profile” of each heating zone within your building to apply heating/cooling at the latest possible moment in time – later if it’s warm and earlier if it’s cold Automatic occupancy detection; moving the temperature to a “background” when areas are not used and then quickly bringing back to temperature when they are occupied. Smart Meter energy consumption display on the app that works with the UK Government roll-out of Smart Meters using the HAN. Room booking system to only heat/cool areas when used. Automatic calculation of heating times/temperatures to match bookings App allows control of multiple heating/cooling systems, in multiple sites, anywhere in the world Solar PV management to avoid exporting excess and use in local energy stores Management of CT/VT valves for under floor heating, control, Air Handling Units, HVAC and destratification fans. Smart card door access control and intruder/break-in detection Automatic Metering of energy and utilities consumption, including water. This includes costings and bill comparisons Air quality and environmental monitoring HeatingSave is UK Government approved by the Department of Business, Energy and Industrial strategy, the Energy Saving Trust, the Carbon Trust, and it is also OfGem CERT approved HeatingSave is listed on the UK Governments Energy Technology List and is qualifiedly applicable when claiming Enhanced Capital Allowance for tax purposes.
Screenshots
Verdict
The clearest difference is update cadence: VERSION RSI at every 5 months against HeatingSave v4's every 35 months. HeatingSave v4's advantage is iOS requirement (11.0 vs 14.0). 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.
VERSION RSI ships an update every 5 months, HeatingSave v4 every 35 months. The most recent releases landed on November 2, 2026 and October 26, 2026 respectively.
| Parameter | VERSION RSI | HeatingSave v4 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months — better | Every 35 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 43 MB | 74 MB |
| Age rating | 4+ | 4+ |
| Developer | TRIDIOM SL | Tensor plc |
In-app purchases
VERSION RSI
No in-app purchases
HeatingSave v4
No in-app purchases








