This app enables remote monitoring, analysis, and data logging for compatible Bluetooth multimeters. It allows for real-time data capture, offline recording, and multi-device monitoring, enhancing safety and simplifying complex measurements.
Best apps like CO2 Sensei
36+ similar apps compared and reviewed
3.8 avg rating
10 free apps
Updated July 2026
CO2 Sensei is great, but it's not the only option. Explore 36+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.
Top Alternatives to CO2 Sensei
OWON Multimeter BLE by Fujian Lilliput Optoelectronics Technology Co., Ltd.
MultimeterStrong Contender
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3.6(7 ratings)
Free
ZenTest-Smart Water Tester by Apera Instruments, LLC
Smart Tester for pH/EC/TDS...Worth Considering
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4.6(49 ratings)
Free
This app connects to ZenTest enabled smart water testers via Bluetooth to manage measurements of pH, EC, TDS, and more. It offers various display modes, cloud-based data management with notes and photos, and instant sharing capabilities.
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4
iLAND Diagnostics
Diagnostic App For Land Rovers
Free
This app provides advanced wireless diagnostic capabilities for Land Rover vehicles. It offers comprehensive coding and system management for all models from 1990 to the present day, powered by your mobile device.
Wireless diagnosticsComprehensive codingSystem management
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free5
Hanna Lab
Turn your phone into a lab
Free
Transform your mobile device into a professional-grade pH meter or data management system. Connect with compatible Hanna Instruments probes and meters to conduct precise measurements, store data securely, and access it via the cloud.
pH meter functionality with Bluetooth probesData management with compatible metersHanna Cloud compatibility for data sync
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free6
EMF Hunter
by Derek Hoffmeister
Free
Transform your phone into an electromagnetic field detector. It uses your device's internal compass to measure magnetic and electric fluctuations, displaying readings through meters, graphs, and particle effects. Ideal for educational or entertainment purposes.
Detects magnetic field strength in three dimensionsEasy-to-read meter with LED indicatorsMultiple graph views (line, bar, polar, pie)
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ad-supported7
Aranet4 Display
Indoor air quality monitoring
Free
This app displays real-time indoor air quality measurements from a connected device. It shows CO2 levels, temperature, humidity, and atmospheric pressure on larger screens for better visibility. Ideal for public spaces to ensure healthy air and inform occupants.
Displays CO2, temperature, humidity, and pressureConnects to Aranet4 deviceLarge screen visibility
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free8
Aranet Home
Indoor air quality monitoring
Free
Monitor indoor air quality with a unified app for various sensor devices. Track CO2, temperature, humidity, atmospheric pressure, and radiation levels. Receive smart alerts and analyze historical data with easy-to-read charts.
Real-time sensor data tracking90-day measurement historyCustomizable home screen widgets
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free9
Spy-Mobile
by Linergy srl
Free
This application provides comprehensive control and monitoring for Linergy Emergency Lamps. It allows users to manage multiple plants simultaneously, detect active and additional lamps, and perform various maintenance functions like resetting settings and deleting errors.
Auto-detect active lampsAuto-detect additional lampsSystem bus monitoring
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free10
Real Sheet Collection
All your RPG sheets & dices
Free
Manage all your tabletop RPG character sheets and dice rolls in one place. Create, edit, save, and share characters for various popular games. Includes integrated dice tables and printing options.
Support for multiple tabletop RPG gamesEditable character sheet creationIntegrated dice table
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free with in-app purchases