OHSA vs azBLEcontrol
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OHSA
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OHSA APP effectively covers the current management content in the field of EHS management, including risk classification control, hidden danger investigation, intelligent patrol inspection, non-compliant work closed loop, construction operation approval, special operation approval, external document approval, hazardous waste scrap approval, laws and regulations query and other functions.
azBLEcontrol
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This app is part of a system to control devices through BLE (Bluetooth Low Energy) communication, between a device (Server "azBLEcontrol") and a smartphone (Client). As a server, two small electronic circuits developed by azSystems, “azESP32” and “azPowerControl”, have been combined. 1. The “azESP32” is developed based on an Espressif ESP32-WROOM-32E and capable of being powered by a lithium battery. 2. The “azPowerControl” is interconnected with the “azESP32”, it has 2 Relays, 4 Mosfets and a regulator which allows it to be powered up to 24Volts. For the Client, this app “azBLEcontrol” for iPhone has currently been developed
Screenshots
Verdict
The clearest difference is update cadence: azBLEcontrol at every 4 weeks against OHSA's every 4 months. azBLEcontrol also leads on iOS requirement (11.0 vs 13.0). 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.
OHSA ships an update every 4 months, azBLEcontrol every 4 weeks. The most recent releases landed on October 30, 2026 and October 27, 2026 respectively.
| Parameter | OHSA | azBLEcontrol |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | 上海欧萨数据技术有限公司 | Hector Alcala |
In-app purchases
OHSA
No in-app purchases
azBLEcontrol
No in-app purchases
