# Grow Sensor vs Aqua Master Tools

Grow Sensor and Aqua Master Tools 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.

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

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 19, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Grow Sensor | Aqua Master Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/grow-sensor-read-the-room/id6473087688/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | — |
| Size | 72 MB | 12 MB |
| Requires iOS | 14.0 | **13.6** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Grow Sensor LTD](https://appshunter.io/developer/1718380665) | [Pim van Seventer](https://appshunter.io/developer/1817121872) |

## What reviewers say

### Grow Sensor

[App page](https://appshunter.io/ios/app/grow-sensor-read-the-room/id6473087688)

This app monitors environmental conditions in grow rooms, including temperature, humidity, CO₂, and light levels. It provides real-time data and detailed graphs to help optimize plant growth. Alerts keep users informed about their environment.

**Highlights:** Real-time environmental monitoring, Temperature and humidity tracking, CO₂, PAR, and pressure readings, VPD calculation, Detailed graphs and insights, Customizable alerts

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

**In-app purchases:** none


### Aqua Master Tools

[App page](https://appshunter.io/ios/app/aqua-master-tools/id6504502045)

**In-app purchases:** none


## Frequently asked questions

### Is Grow Sensor free?

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

### Is Aqua Master Tools free?

Aqua Master Tools is free to download, with no in-app purchases.

### Do Grow Sensor or Aqua Master Tools have ads?

Neither Grow Sensor nor Aqua Master Tools shows ads.

### Which is updated more often, Grow Sensor or Aqua Master Tools?

Grow Sensor ships an update every 2 months, and Aqua Master Tools every 2 months. Most recently, Grow Sensor was updated on October 19, 2026 and Aqua Master Tools on October 27, 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.*