Si vs airCloud Alarm Code
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Si
Instantly and accurately displays numerous measurements like pressure and temperature for specific devices. It supports long-range Bluetooth connectivity and can store and update approximately 120 refrigerants, including environmentally friendly options.
- Real-time measurement display
- Bluetooth 4.2 connectivity (up to 30m)
- Storage for ~120 refrigerants
- Environmentally friendly refrigerant support
- Updateable refrigerant database
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This App is used to instantly and accurately display numerous measurements, including pressure, temperature, etc., for the Si-RM3, Si-RM13, Si-RV3, and Si-RM1. It comes with long-range low-energy Bluetooth® 4.2 up to 30 meters (98 ft) and the ability to store and update approximately 120 refrigerants, including environmentally-friendly low global warming potential (GWP) and natural refrigerants.
airCloud Alarm Code
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Designed for HVAC technicians and service professionals, airCloud Alarm Code gives you access to the list of error codes for Hitachi air conditioning products, simplifying troubleshooting. How does it work? - Choose the faulty AC unit using the product code - Select on your smartphone the alarm code displayed on the Hitachi air conditioning unit - Access the official documentation for this specific alarm code Now it's your turn! Quickly find the right code to make the correct diagnosis.
Screenshots
Verdict
The clearest difference is update cadence: Si at every 2 months against airCloud Alarm Code's every 27 months. 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.
Si ships an update every 2 months, airCloud Alarm Code every 27 months. The most recent releases landed on October 6, 2026 and October 5, 2026 respectively.
| Parameter | Si | airCloud Alarm Code |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months — better | Every 27 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.4 — better | 13.0 |
| Further details — not scored | ||
| Size | 87 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | SAUERMANN INDUSTRIE | Bosch Thermotechnik GmbH |
In-app purchases
Si
No in-app purchases
airCloud Alarm Code
No in-app purchases
Questions
Is Si free?
Is airCloud Alarm Code free?
Do Si or airCloud Alarm Code have ads?
Which is updated more often, Si or airCloud Alarm Code?
Other comparisons
