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Screenshots

  • HS-221 screenshot 1
  • HS-221 screenshot 2

About HS-221

Measurement and register system for the rising damp in walls, measuring the resistivity between two screws fixed to a wall. The readings are sent through Bluetooth and stored to your iPhone using this app.

What’s new

Version 1.3 · Updated March 12, 2026

This version is compatible with the new HUMISCAN device. It also includes some internal improvements and is optimized for iOS 26.

Alternatives to HS-221

Looking for apps like HS-221? Here are 6 similar apps on the App Store. The highest rated is tempi.fi (4.7/5), and all 6 are free to download.

HS-221 vs. alternatives
App Rating Price Last updated Compare
HS-221 5.0 / 5 (1 rating) Free March 12, 2026
MoistAPP – Free Feb 6, 2024 Compare
H2O Precision Moisture Sensor 4.5 / 5 (4) Free Oct 15, 2026 Compare
bluSensor 1.0 / 5 (5) Free Oct 14, 2026 Compare
Hmbox – Free May 26, 2026 Compare
Hygrometer Barometer 4.3 / 5 (155) Free Aug 18, 2026 Compare
tempi.fi 4.7 / 5 (22) Free Aug 25, 2025 Compare

Compare HS-221 with the top alternatives: ratings, updates, ASO score and keyword gaps →