Calculator Plus History Record vs Dumpy Pro.

When you are calculating, do you find it hard to recall past calculations? Don't worry - this basic calculator plus history calculator will show you all of your past calculations on the same screen as you do them. Basic calculator plus history calculator can track and keep record of past calculations so you can check on those calculations whenever or wherever you want. Basic calculator offers a range of customizable calculation features to elevate your calculation experience. Error-Free Calculations: Basic calculator plus history calculator ensures that your calculations will be error free. With basic calculator you can perform basic functions like addition, subtraction, multiplication, and division with ease. History Calculator: With history calculator, you can revisit your previous calculations. Check for mistakes, recall your computations, and ensure accuracy with basic calculator plus history calculator. Customize in Your Way: With basic calculator plus customizable keyboard you can make changes in font size to make the button numbers larger or smaller. Save Your calculations: No need to jot down all calculated answers, calculator plus history calculator saves all your answers. Additional Basic Calculator Features: - Calculate percentage - Customize precision limits - Choose different type of number separator - Convert numerical answers in words - Change sound type of your clicks - Adjust the size of input and output text - Fabulous more themes are suitable for your interests Calculate, save, sync history, and boost your productivity with basic calculator plus history. Whether you are a businessman, an accountant, a shopkeeper, or a marketing executive, basic calculator plus history calculator organize all your calculated results accurately. Download basic calculator plus history now and let the calculator with saved history redefine your math calculation journey! SUBSCRIPTION: Want to make the most of Basic Calculator Plus History? Upgrade to a Premium subscription to add calculation titles & remove ads hassle-free: 6 Months Subscription: $1.99 (USD), Rs. 199 (INR) 1 Year Subscription: $2.99 (USD), Rs. 299 (INR) Apple Subscription Terms: – Payment will be charged to iTunes Account when purchase is confirmed. – Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. – Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. – Subscriptions may be managed by the user & auto-renewal may be turned off by going to the user's Account Settings after purchase. – Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Privacy Policy: https://sites.google.com/view/susamp-privacy-policy Terms of Use: https://sites.google.com/view/historycalculator/home

Dumpy Pro — Digital Level Book The level book that belongs on every surveyor's phone. Record, check, and export your field data without paper, without a laptop, and without losing anything. LEVEL BOOK Work exactly as you would on paper — but faster. Enter your Backsight, Intermediate Sights, and Foresight readings using the Height of Collimation method. Every HC and RL is calculated instantly as you type. A live closure check at the end of each run tells you whether your arithmetic passes in seconds, not minutes. Change points are automatically detected when you move the instrument. Undo the last reading with a single tap if you mis-book. Export a professionally formatted PDF level book or a CSV spreadsheet to share with your engineer or client directly from the field. SET-OUT Enter a design RL and Dumpy Pro tells you exactly what staff reading to look for. No mental arithmetic, no pocket calculator. Import your design points from a CSV file — map the columns once and every peg is ready to go. Live Mode shows the cut or fill in real time for the point you're setting out, so you can work continuously without looking away. Staff readings update automatically if you re-level and enter a new HC. Export your set-out sheet as a PDF or CSV. AS-BUILT SURVEY Record actual RLs against design RLs and let the app assess every point against your tolerance. Import design data from CSV, or enter points manually. Points are flagged as pass, fail, or pending. Attach photos to any point directly from the field. Export a full as-built report as a PDF or CSV. DRAINAGE Set up a drainage run with a start invert level and a grade. Dumpy Pro calculates the design invert at every chainage you enter and compares it to your as-laid reading. The exact signed percentage to dial into your laser or machine — negative for falling, positive for rising — is displayed prominently on every run card. Export the full run as a CSV report. SITE COMMS Real-time two-way communication between instrument operator and staffman — works over Wi-Fi or a local hotspot, no mobile signal required. The operator sees live staff readings and calculated RLs; the staffman receives cut/fill instructions as each point is recorded. TWO PEG TEST Check your level's collimation accuracy on site before you start. Enter four staff readings and the app calculates the collimation error per 60 m — pass or fail — with a step-by-step guide built in. ENGINEERING CALCULATOR A quick-access calculator for common survey maths, available from any screen. JOB FOLDERS Keep your site organised. Create a job folder for each project and add as many level books, set-out files, and drainage runs as you need. All data auto-saves and is stored in the app's Documents folder — visible in the iOS Files app under On My iPhone › Dumpy Pro, survives app updates and reinstalls, and can be backed up or transferred at any time. Share a complete job with a colleague via AirDrop, Messages, or the Files app with one tap. BUILT FOR THE FIELD Dark and light mode — readable in any light condition Imperial and metric — switch between metres and feet & inches in Settings; all readings, exports, and tolerances update throughout the app Large numeric inputs designed for gloved hands Keyboard dismiss button that moves to your dominant hand Haptic feedback confirms every reading added Fully offline — no account, no subscription, no internet required Customisable reading labels (rename BS/IS/FS to match your company's notation) Built-in help sheet on every screen Built-in glossary covering RL, BS, IS, FS, HC, TBM, invert levels, closure, and more Whether you're levelling for a building slab, setting out kerb lines, checking as-laid drainage falls, or verifying as-built levels, Dumpy Pro keeps up with you on site. For professional reference use only. All results must be independently verified by a qualified engineer or surveyor before use on site.