PHK Key vs BIGFIRE AIoT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PHK Key
This security code generator provides two-factor authentication for online trading. Download it to your mobile device to enhance your account security.
- Two-factor login authentication
- Online trading security
- Mobile code generation
- Enhanced security
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PHK Key is a security code generator that is developed by Phillip Securities (HK) Ltd. in order to provide two-factor login authentication for client to operate online trading. Simply download PHK Key to your mobile for upgrading the security now.
BIGFIRE AIoT
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BIGFIRE AIoT delivers a unified IoT management and intelligent monitoring solution that brings distributed sensors, video surveillance, and personnel safety into a single digital operations platform. The platform integrates CCTV, thermal sensing, access control, wearable devices, and edge gateways — closing the loop from perception to decision: Situational Awareness — Real-time dashboards surface device health, alert trends, and operational overview Intelligent Monitoring — Multi-dimensional device visibility with seamless map and list navigation Closed-loop Alert Management — From detection to resolution and false-alert flagging, every alert is traceable Digital Resource Management — Unified device, location, and personnel management with flexible tagging Video Evidence — Live streaming and historical playback with alert-linked retrieval Proactive Delivery — Instant push for alerts and weather warnings so critical information never waits From security patrol to facility operations to personnel safety, BIGFIRE AIoT empowers enterprises to respond faster, operate leaner, and manage with greater transparency.
Screenshots
Verdict
The clearest difference is update cadence: BIGFIRE AIoT at every 8 days against PHK Key's monthly. PHK Key's advantage is iOS requirement (9.0 vs 18.6). 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.
PHK Key ships an update monthly, BIGFIRE AIoT every 8 days. The most recent releases landed on October 6, 2026 and October 28, 2026 respectively.
| Parameter | PHK Key | BIGFIRE AIoT |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Monthly | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 9.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 2 MB | 84 MB |
| Age rating | 4+ | 4+ |
| Developer | Phillip Securities (HK) Limited | BIG FIRE SURVEILLANCE TECHNOLOGY LIMITED |
In-app purchases
PHK Key
No in-app purchases
BIGFIRE AIoT
No in-app purchases









