Temtop vs Vsensor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Temtop
This app detects formaldehyde, PM2.5, and TVOC using advanced sensors. It provides accurate and reliable environmental data for your home or workspace.
- Formaldehyde detection
- PM2.5 detection
- TVOC detection
- British Dart electrochemical sensor
- US TEMTOP laser particle sensor
- Accurate and reliable data
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Detection function: formaldehyde, PM2.5, TVOC It is equipped with British Dart formaldehyde electrochemical sensor, which effectively reduces gas interference and makes formaldehyde detection more accurate. Accurate and reliable data using the US TEMTOP laser particle sensor
Vsensor
This utility app displays environmental data like PAR, CO2, and CO concentrations directly on your phone. It requires compatible external meters to function.
- Displays PAR data
- Shows CO2 concentration
- Reads CO concentration
- Works with external meters
- Professional tool
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To show the datas of PAR, CO₂ concentration and CO concentration in phone by working with corresponding meters.
Screenshots
Verdict
Temtop and Vsensor both sit at 2.9 stars, but that hides the real split: 60% of Vsensor's written reviews are positive against 32% of Temtop's. Temtop's advantage is ratings volume (80 vs 8). On price, rating, update cadence and ads 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.
On the App Store both sit at effectively the same score — 2.9 for Temtop against 3.0 for Vsensor. That said, the two scores are not equally well evidenced: Temtop has 80 ratings behind it against 8, so its average is the more settled of the two. Written reviews are what separate them: 32% of Temtop's written reviews are positive against 60% of Vsensor's.
Temtop ships an update every 5 weeks, Vsensor every 3 weeks. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.
| Parameter | Temtop | Vsensor |
|---|---|---|
| Price | Free | Free |
| Rating | 2.9 (80 ratings) | 3.0 (8 ratings) — better |
| Positive reviews | 32.2% of reviews | 60.0% of reviews — better |
| Number of ratings | 80 — better | 8 |
| Update frequency | Every 5 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15 — better | 15.1 |
| Further details — not scored | ||
| Size | 183 MB | 70 MB |
| Age rating | 4+ | 4+ |
| Developer | Elitech Technology,Inc. | 健成 李 |
Customer experience
Temtop
Vsensor
In-app purchases
Temtop
No in-app purchases
Vsensor
No in-app purchases
