Caldy vs PVLevel

When you need more than a basic calculator, but do not want a spreadsheet. Caldy is a visual calculator: linked values are clearly shown with connecting arrows. The history is right in front of you. Caldy is a dynamic calculator: any number or operation can be changed and the linked expressions are updated automatically. Numbers can have labels, making the expressions easier to read. Results can be dragged and dropped on placeholders to connect expressions. Sub-expressions can be extracted to structure complex calculations. Sub-expressions can be extracted to structure complex calculations. Caldy percentage increase function, very handy to calculate tips or tax such as VAT. Caldy can plot expressions. Plots are zoomable and dynamic as well. Pinch on the plot to zoom in or out. Caldy is document-based. You can organize your calculation sheets like files, on your device or even on iCloud. Caldy has math functions, trigonometry functions. Caldy supports dark mode. All Clear button to clear the sheet. Undo and redo buttons. Cursor move buttons (left and right). Export to share the sheet as an image. A new intuitive calculator. - Familiar interface - Edit expressions anywhere anytime, results are updated automatically - Multiple sheets - Plots, pinch to change X range - Dark mode - Trigonometry functions, exponential, logarithm, percentage increase, absolute function - Add labels to numbers - Swap operands, extract subexpressions, move expressions

The Bubble Level for Professional PV Installers. Measure & Align Your PV Solar Panels On-Site Perfectly in Real Time. Displays Instantly Energy & Earnings Predictions. No Tools Required — Just Your Phone. Running On Live Phone Sensor Measurements & Scientific Solar Data. Scientific accuracy back-tested with average errors smaller 1,0% (max. errors smaller 5% for irrelevant orientations) on PVGIS solar data base Experience how changing the orientation of your PV panels benefits the energy production and earnings in real-time. Collaborate with your co-workers & update your customers in real-time. PVLevel guides you with ease through all the phases of measuring, optimizing, planning & even installing your next home PV system or simply aligning your mobile PV panel on your next camping trip in no time! Use your mobile device and its integrated sensors as measuring tool to measure the solar panel orientations in real-time, displaying the predicted solar energy and expected money gained with every move of your device! Align your device parallel to the roof or planned panel orientation and PVLevel does everything else for you. Verify your installation process by measuring the actual orientation of the PV panels before tightening the screws! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/