Age Calculator
Calculators & Finance
Calculate your exact age instantly with accurate results in years, months, and days. Simple, fast, and offline tool for quick age calculations directly in your browser.
AI-powered ROI Calculator to estimate returns instantly with advanced analytics and scenario modeling. Fast, simple, and privacy-focused tool for quick financial insights directly in your browser.
Editor score is the AltFTool team’s own rating, not user reviews.
Features
Calculate ROI based on investment inputs
Fast and lightweight performance
Simple and user-friendly interface
Install
Step 1: Open the extension's page on AltFTool and choose “Add to Chrome”. The official Chrome Web Store listing opens in a new tab.
Step 2: On the store listing, check the developer, the description and the permissions the extension asks for.
Step 3: Click “Add to Chrome”, read the permission prompt Chrome shows, then confirm with “Add extension”.
Step 4: Pin it. Open the puzzle-piece Extensions menu next to the address bar and click the pin icon so it stays one click away.
Permissions & privacy
Chrome shows the exact permissions Feature ROI Pro asks for before you confirm the install. You can also read them, and the developer’s data declarations, in the Privacy practices section of the store listing.
Explain permissions with the free analyzerFAQ
Yes. Feature ROI Pro is a free Chrome extension from AltFTool and does not need an AltFTool account.
Choose “Add to Chrome” on this page to open the official Chrome Web Store listing, review the permissions, then click “Add extension” and pin it from the Extensions menu.
Feature ROI Pro is built for Google Chrome. Chromium-based browsers such as Microsoft Edge, Brave and Opera can usually install Chrome Web Store extensions too; Firefox and Safari cannot.
Calculate ROI based on investment inputs; Fast and lightweight performance; Simple and user-friendly interface.
Chrome shows the exact permissions before you confirm the install, and the store listing shows them too. Paste them into AltFTool's Browser Extension Permission Analyzer for a plain-English explanation.
Free, no AltFTool account needed. Installs from the official Chrome Web Store.