# Vsensor vs Sama Tech

The clearest difference is update cadence: Sama Tech at weekly against Vsensor's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Vsensor ships an update every 3 weeks, Sama Tech weekly. The most recent releases landed on October 4, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Vsensor | Sama Tech |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (8 ratings)](https://appshunter.io/ios/app/vsensor/id1635688804/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free | — |
| Size | 70 MB | 79 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [健成 李](https://appshunter.io/developer/1055522601) | [Mhd Mazen Khalil](https://appshunter.io/developer/1850409123) |

## What reviewers say

### Vsensor

[App page](https://appshunter.io/ios/app/vsensor/id1635688804)

This utility app displays environmental data like PAR, CO2, and CO concentrations directly on your phone. It requires compatible external meters to function.

**Highlights:** Displays PAR data, Shows CO2 concentration, Reads CO concentration, Works with external meters, Professional tool

**Features:** macOS Compatibility

**In-app purchases:** none


### Sama Tech

[App page](https://appshunter.io/ios/app/sama-tech/id6757432693)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Vsensor free?

Vsensor is free to download, with no in-app purchases.

### Is Sama Tech free?

Sama Tech is free to download, with no in-app purchases.

### Do Vsensor or Sama Tech have ads?

Neither Vsensor nor Sama Tech shows ads.

### Which is updated more often, Vsensor or Sama Tech?

Vsensor ships an update every 3 weeks, and Sama Tech weekly. Most recently, Vsensor was updated on October 4, 2026 and Sama Tech on October 11, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*