VST vs CASSIE Air
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VST
This utility app allows users to manage VSOL company's terminal devices. It provides essential tools for overseeing and controlling these devices within the company's network.
- Terminal device management
- VSOL company specific
- Device control tools
- Network oversight
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VST is an application used to manage VSOL company's terminal devices.
CASSIE Air
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Easily monitor the air quality in your building and streamline maintenance requests with our intuitive app. Stay informed with real-time air quality data and take action by creating and managing work orders for your maintenance staff directly from the platform. Keep your building safe, healthy, and running smoothly—all in one convenient place.
Screenshots
Verdict
VST and CASSIE Air are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
VST ships an update fortnightly, CASSIE Air every 3 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | VST | CASSIE Air |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Fortnightly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.0 — better | 13.4 |
| Further details — not scored | ||
| Size | 53 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Guangzhou V-solution Telecommunication Technology Co., Ltd. | Cassie, Inc. |
In-app purchases
VST
No in-app purchases
CASSIE Air
No in-app purchases
