# BIOCAT vs M

The clearest difference is ads: BIOCAT at none against M's shown. BIOCAT also leads on monetization model (free vs ad-supported) and update cadence (every 2 months vs every 4 months). M's advantage is review sentiment (80% vs 67%). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

BIOCAT ships an update every 2 months, M every 4 months. The most recent releases landed on October 3, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | BIOCAT | M |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | **80.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | **Free** | Ad-supported |
| Size | 125 MB | 56 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [WaterCryst](https://appshunter.io/developer/1484789117) | [M-TEC Energy Systems GmbH](https://appshunter.io/developer/1660700474) |

## What reviewers say

### BIOCAT

[App page](https://appshunter.io/ios/app/biocat/id1484789118)

Configure your BIOCAT KLS device remotely via Bluetooth or the internet. Receive alerts for leakage alarms and monitor your water consumption data and statistics.

**Highlights:** Remote device configuration, Bluetooth and Internet connectivity, Leakage alarm notifications, Water consumption tracking, Leakage check functionality, User registration for advanced functions

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

**In-app purchases:** none


### M

[App page](https://appshunter.io/ios/app/m-tec-e-smart/id6478609608)

Monitor and manage your building's energy flows, generation, and consumption directly from your smartphone. Gain insights with daily, monthly, and annual evaluations, and control connected devices like chargers and heat pumps for increased efficiency and sustainability.

**Highlights:** Visualize energy flows, Energy generation and consumption overview, Daily, monthly, annual evaluations, Energy-Charger control, Heat pump control, Remote energy management

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BIOCAT free?

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

### Is M free?

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

### Do BIOCAT or M have ads?

M shows ads; BIOCAT does not.

### Which is updated more often, BIOCAT or M?

BIOCAT ships an update every 2 months, and M every 4 months. Most recently, BIOCAT was updated on October 3, 2026 and M on September 29, 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.*