Tapspect vs DB RelationalAlgebra

Tapspect is a lightweight developer tool that wraps any web app in a browser with a built-in debug panel — no Mac or Safari Web Inspector required. Tap the floating bug button to see what's happening under the hood. - Console: captures log, warn, error, info, debug, uncaught exceptions, and unhandled promise rejections - Network: intercepts fetch and XMLHttpRequest calls with method, status, timing, and full request/response bodies - Screenshots: upload to your own server and get a shareable URL copied to your clipboard The ideal companion for reviewing AI-generated websites. Open your URL, spot an issue, copy the error, and paste it into your AI assistant for an instant fix. No data collection — everything stays on your device.

A native iPad and iPhone app that converts a SQL query typed, pasted, or imported from a .sql file into relational algebra, tuple relational calculus and domain relational calculus. Each notation gets a step by step derivation, a final oneline formula, and an interactive diagram an operator tree for the algebra, a quantifier scope tree for the calculus and a fourth view stacks all three against the same query. Whatever SQL asks for that a notation cannot express exactly is reported rather than quietly approximated.