Showing 41–60 of 1,000 ranked alternatives.
Vlad Polyanskiy
Measure car noise at any speed
Measure car interior noise at various speeds. Compare noise levels between vehicles. Check noise cancellation effectiveness before and after. Measure motorcycle exhaust . Includes calibrated for accurate readings.
Apera Instruments, LLC
Test parameters via Bluetooth
Connect to Bluetooth-enabled testers to measure pH, conductivity, TDS, salinity, resistivity, ORP, and temperature. View data in Simple, Dial, Graph, or Table modes. Save and manage measurement records in a cloud-based system.
NAICOO PTE. LTD.
Access content and websites securely
Securely route internet traffic through encrypted servers to protect privacy and anonymity. Measure and select optimal global nodes for faster connection speeds. Access restricted content and websites anonymously.
Siu Yuen Ho
Calculate, measure, and test components
Calculate component values for desired corner frequency, resistance, capacitance, or inductance. Find combinations of resistors, capacitors, and inductors. View detailed calculations and formulas. Export results. Remove ads with PRO version.
Dominic Rodemer
Measure surfaces with precision easily.
The app provides horizontal, vertical, and inclined surface measurements. It includes a calibrating function for precise measurements.
Armchair Engineering
Track prices in your currency
Track current prices in selected currency and measurement unit. View historical data in graphs for up to 24 months. Show daily changes in value or percentage. Customize theme color for personal preference.
Adafruit Industries LLC
Calculate component values and resistor codes
Calculate component values for Op Amp, 555, RC Filter, and Resistor Divider circuits. Decode resistor and capacitor codes. Compute power, resistance, current, and voltage using Ohm's Law and Power Calculators.
ONYX 3
Analyze ticking sounds and track clock rate
Analyzes the ticking sound of mechanical pendulum clocks to determine their running rate in Beats Per Hour. It compares this rate to a target and reports the error in Seconds Per Day. Users can adjust settings and view detailed timing data.
Mohamed Saad
Calculate radius, length, and chord
Arc+ calculates radius, length, width, height, and tangent by inputting two known values. Converts between measurement units. Saves results to a favorites list and shares them with others.
丽佩 章
Mark sizes and details on images
Mark picture dimensions and add notes with customizable labels, lines, and fonts. Batch import and export images in PDF, JPG, or ZIP formats. Organize files into folders. Use a magnifying glass for precise .
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