Scala Architectural Scale vs Panel Planner

Let Scala Architectural and Engineering Scale change the way you measure printed drawings on the go and at your desk. With fixed and variable scales there is no limit to measuring a printed drawing of any scale, even if the scale is unknown. FIXED SCALES If you know the scale of a drawing, place your device on the drawing, scroll to the scale of the printed drawing and watch the chosen scale slide in. VARIABLE SCALES If the scale of a drawing is unknown, slide your finger on the variable scale and match the scale of one known element, lock it and use it to measure all elements on that drawing. MEASURING Slide the measurement slider in fixed or variable scale modes, along the scale to see the desired measurement displayed. SECONDARY UNITS Choose secondary units to be displayed while measuring, to quickly convert between metric, decimal feet and feet and inches. PRECISION Control the precision of the measurement units. —-— Scala Free Version includes: ARCHITECTURAL Fixed Scales: Full Scale (12”=1’-0”), 6”=1’-0”, 3”=1’-0”, 1 1/2”=1’-0”, 1”=1’-0”, 3/4”=1’-0” Variable Scale Range: Between full scale and 1/32”=1’-0” ENGINEERING Fixed Scales: 1”=10’, 1”=20’, 1”=30’, 1”=40’, 1”=50’ and 1”=60’ Variable Scale Range: Between 1”=10’ and 1”=300’ METRIC Fixed Scales: 1:1, 1:2, 1:5, 1:10, 1:20, 1:25 Variable Scale Range: Between 1:1 and 1:1000 Scala Full Version includes all scales above plus the following: ARCHITECTURAL Fixed Scales: 1/2”=1’-0”, 3/8”=1’-0”, 1/4”=1’-0”, 3/16”=1’-0”, 1/8”=1’-0”, 3/32”=1’-0”, 1/16”=1’-0”, 1/32"=1'-0" ENGINEERING Fixed Scales: 1"=80', 1"=100', 1"=200', 1"=300' METRIC Fixed Scales: 1:30, 1:40, 1:50, 1:75, 1:100, 1:125, 1:200, 1:250, 1:300, 1:400, 1:500, 1:1000 —-—

Plan, visualize, and manage your home's electrical system — right from your iPhone. Circuit Breaker Panel is an interactive residential electrical panel simulator that lets you map out every circuit in your home, track real-time current loads, and plan new circuits before you ever call an electrician. BUILD YOUR PANEL Install single-pole (120V) and double-pole (240V) breakers in any configuration. Choose from 15A, 20A, 30A, 40A, 50A, and 60A ratings. Support for 24, 30, and 40-slot panels with 100A, 150A, 200A, and 400A main breakers. ADD YOUR DEVICES Populate each circuit with the real appliances and devices in your home. Choose from 20 common presets — refrigerator, HVAC, EV charger, dryer, and more — or enter any custom wattage. Toggle devices on and off to simulate real-world usage scenarios. LIVE LOAD CALCULATIONS Current draw is calculated automatically for every circuit (Amps = Watts ÷ Voltage). Watch each breaker's load bar update in real time as you switch devices on and off. COLOR-CODED SAFETY STATUS Know at a glance which circuits are safe and which are at risk: Green glow — circuit is within safe range (under 70% load) Yellow glow — load is climbing, approaching capacity (70–90%) Red pulsing glow — circuit is overloaded, breaker would trip (over 90%) SAVE UP TO 10 PANELS Save and restore up to 10 complete panel configurations. Perfect for planning a renovation, comparing layouts, or managing panels across multiple properties. DESIGNED FOR CLARITY A realistic panel enclosure with a center bus bar, physical breaker switches, and load bars on every circuit give you an intuitive feel for your home's electrical system — no electrical engineering degree required. FULLY OFFLINE & PRIVATE No account. No internet connection. No data collection of any kind. Your panel configurations are stored only on your device.