AcoustiTools® vs Inductor Calculator Master

AcoustiTools® — Professional Tools for iPhone and iPad with Augmented Reality for Live Sound, Studio, Car Audio, and Home Theater. AcoustiTools is a new generation of professional-grade audio analysis and diagnostic tools using ARKit to elevate the audio experience. Five interactive modules – four tile display: 1) Audio Information in Augmented Reality Know the volume level across the venue using the ground-breaking AR Spatial Analyzer module. This module uses augmented reality (AR) to tag locations and calculate the volume level, distance, and delay for each placed tag. Ever need to use asymmetrically placed speakers? Prevent a blurred delay of sound for the audience. With the AR Spatial Analyzer module, you can instantly know how to accommodate for the depth difference and correct the time alignment. - Map The Volume The Volume Variance feature uses tagged locations to quickly map the sound level variations from tagged and labeled main speakers to your current position. The live values display in a 2D overlay allowing you to monitor the sound levels across the audience and keep the volume enjoyable for everyone. - Simplify Delay Timing The Delay Calc feature makes it simple to solve delay problems, calculating the delay timing between a tagged and labeled front speaker and delay stack. The displayed results give you the information needed to quickly sync your audio. 2) Diagnostic PEQ (in-app-purchase) Using the revolutionary real-time Diagnostic PEQ (parametric equalizer) module to listen to pink noise, receive recommended corrective EQ settings to implement for tuning your audio system, whether you’re in a large or small space. Want to reduce the stress of identifying the most problematic frequencies under pressure and choosing the most effective EQ settings to correct it? Available through in-app-purchase, the revolutionary Diagnostic PEQ module diagnoses your audio and recommends a corrective EQ curve to implement for your mix based on live audio or averaged recorded samples. With values for each setting of your PEQ — the center frequency, the Q, and the amplitude — you have a professional, real-time solution to your immediate audio challenges. 3) Diagnostic GEQ (in-app-purchase) If your system uses a graphic equalizer, use the revolutionary real-time Diagnostic GEQ (graphic equalizer) module to listen to pink noise and receive recommended corrective GEQ settings to implement for tuning your audio system, whether you’re in a large or small space. Want to quickly balance your car’s audio system? Set the Diagnostic GEQ to match the number of bands your car’s audio system uses. Available through in-app-purchase, the revolutionary Diagnostic GEQ module diagnoses your audio and recommends a corrective EQ curve based on live audio or averaged recorded samples making it easy to get the most out of your audio system. 4) Real-Time Analyzer The RTA module gives you the information you need to determine the best on-the-fly frequency corrections. The AcoustiTools RTA module includes a red problem frequency line to highlight the frequency on the RTA graph with the largest difference from surrounding frequencies. You can also keep your eye on a specific frequency you set using the blue selectable frequency line. Easily switch between a spectrum color display for bright environments or display the graph in solid blue for dimmer environments. 5) dB Meter - Max-Peak/Max-Average - Fast/Slow - User selectable Max-Average time periods - Threshold Alerts __________ AcoustiTools’ innovative design simultaneously displays four active modules. This breakthrough feature allows you to view information from multiple modules at once and quickly select a module to interact with. Global Features: - Spectral Weightings - Averaging Options - Selectable Block Sizes - Microphone Calibration Trim AcoustiTools — superpowers in your hands. For tutorial videos & the user guide, go to www.acousticmasterminds.com

Inductor Calculator Master is the most complete offline coil calculator for electronics engineers, RF hobbyists, audio builders, and students who work with inductors every day. No internet. No accounts. No guesswork. Enter your coil dimensions and get accurate results instantly — whether you are in the workshop, in the field, or somewhere with no signal at all. WHAT YOU CAN CALCULATE 1. Air Core Solenoid Calculate inductance, wire length, and DC resistance for single-layer air-core coils. Supports both mm and inch units. Includes a coil diagram and practical winding tips from the electronics community. 2. Multi-Layer Coil Handle multi-layer windings using the correct multi-layer Wheeler formula. The app automatically warns you when your geometry would make a single-layer formula unreliable. 3. Toroid — Two Methods AL Value Method: enter the core's AL value and number of turns to get inductance. Physical Dimensions Method: enter outer diameter, inner diameter, height, and relative permeability to get inductance. Both methods output wire length and DC resistance. 4. LC Resonant Circuit Enter inductance and capacitance to get resonant frequency. Or enter target frequency and capacitance to find the required inductance. Instantly check whether your LC tank circuit hits the right frequency. BUILT FOR REAL WORKFLOWS 1. Target Solver Know your target inductance? Enter it along with your coil geometry and the app tells you exactly how many turns to wind — no trial-and-error, no spreadsheets. Supports Air Core, Multi-Layer, Toroid AL, and Toroid Physical modes. 2. Correct My Coil Wound a coil that measures the wrong value on your LCR meter? Enter your measured inductance, your target inductance, and the current number of turns. The app calculates precisely how many whole turns to add or remove. 3. Compare 2 Designs Enter two Air Core configurations side by side and compare their inductance, wire length, and DC resistance in a single view. Faster than switching between tabs and recalculating manually. 4. Save to History Every calculation can be saved and recalled later. All inputs and outputs are preserved exactly as you entered them — no re-entering values across sessions. EVERY RESULT INCLUDES - Inductance displayed in auto-scaled units (H, mH, µH, or nH) - Wire length required for the complete winding - DC winding resistance - Confidence rating (High, Medium, or Low) based on how well your geometry fits the formula's valid range - Geometry-specific warnings when inputs fall outside ideal formula boundaries - Real-world winding tips drawn from electronics community experience 100% OFFLINE All calculations run entirely on your device. No data is ever sent to a server. The app works anywhere — workshop bench, shack, stockroom, or a metal building that kills your signal. PRICING - Free: All four main calculators (Air Core, Multi-Layer, Toroid, LC Resonant). Unlimited calculations, no time limits. - Remove Ads — $0.99: Removes the banner ad from every screen. One-time purchase, no subscription. - Premium — $1.99: Unlocks Quick Tools — Target Solver, Correct My Coil, and Compare 2 Designs. One-time purchase. Restore Purchases is fully supported. WHO IT IS FOR Amateur radio operators building tank circuits, filters, and matching networks. Audio engineers designing speaker crossover inductors. Power supply designers specifying filter chokes. Students studying electromagnetic induction and RF theory. Makers and hobbyists winding anything from custom sensors to coilgun stages. If you wind wire around a form, this app belongs on your phone.