HandyText vs Bullerkollen

HandyText transforms your handwritten notes into digital text with just a tap. Whether you're a student with pages of lecture notes, a professional capturing meeting notes, or anyone who prefers writing by hand, HandyText makes digitizing your handwriting effortless. Simple & Powerful: Snap a photo of your handwritten notes Watch as they transform into editable digital text Share instantly to any app or save for later No account creation or login required Why HandyText? FAST: Convert handwritten text in seconds ACCURATE: Advanced recognition technology identifies even challenging handwriting SHARE ANYWHERE: Send your converted text to email, messages, notes apps, social media, and more HISTORY: Access your last 4 scans for convenience PRIVACY-FOCUSED: Your notes stay on your device - no data stored in the cloud Perfect for students, professionals, researchers, journalists, and anyone who wants to bridge the gap between handwritten and digital notes. HandyText helps you stay organized and makes your handwritten content instantly usable in the digital world. Download now and experience the simplicity of turning handwriting into text with just a tap!

Bullerkollen is an indicative sound level meter for iOS that turns your phone's built-in microphone into a practical measurement tool for noise, acoustics and vibration. SOUND AND NOISE MEASUREMENT Measure with A- and C-weighting according to IEC 61672-1. The app calculates LAeq, LAFmax, LCeq, LCpeak, LASmax, LAFmin, L10, L50, L90 and LAE (SEL) in real time. Choose measurement duration (5–60 seconds) and save results with a name and notes. 1/3-OCTAVE SPECTRUM View A-weighted equivalent level per 1/3-octave band (20 Hz–16 kHz) in a clear bar chart. Perfect for identifying the frequency content of a noise source. 24-HOUR LOG Measure and log LAeq and LAFmax continuously for as long as you need — hours or entire nights. Choose resolution (1 second to 15 minutes) and export a PDF report directly in the app. Ideal for night-time measurements and longer monitoring sessions. INDICATIVE INSULATION SCREENING Estimate the sound insulation of a wall or floor (DnT and R') as a single-number value according to ISO 717-1. Use a Bluetooth speaker as the source and measure in source and receiver rooms in five steps. Import reverberation time from Akustikkollen or enter manually. VIBRATION METER Measure linear acceleration (m/s²) using the phone's accelerometer. Shows live RMS, measurement RMS per axis (X/Y/Z) and comfort class according to ISO 2631-1 — indicative screening of whole-body vibration. CALIBRATION • Device profiles for known phone models (based on NIOSH data) • Calibration against a reference sound level meter • Manual dB offset • Support for external measurement microphones with calibration curve (.cal / .csv) BBR COMPARISON Compare measurement results against Swedish Public Health Agency guidelines (FoHMFS 2014:13) for bedrooms and other rooms — directly after each measurement. SAVE & EXPORT All measurement history is stored locally. Export individual measurements as CSV. 24-hour logs and insulation measurements export as PDF reports. IMPORTANT Bullerkollen is an indicative meter and does not meet the requirements of SS-EN 61672-1 for Class 1 or Class 2 sound level meters. Do not use this app as the basis for regulatory reports or inspection protocols — use a calibrated meter and consult an acoustics professional when required. Bullerkollen is developed by B&L Lund AB, a consulting firm specialised in acoustics, noise and vibration.