Aptitude Test Prep

Mindoria is an Android micro-learning app that pairs roughly 650 bite-sized lessons across ten subjects with spaced-repetition review and live, ELO-ranked PvP trivia battles.

An independent, ad-free editorial reference that answers common homeowner maintenance questions across HVAC, plumbing, roofing, and appliances with plain-language diagnostics and real cost ranges.

Blindspot pairs an AI English text checker with rule-level grammar explanations and auto-generated drills, converting recurring learner errors into personalized practice via a vocabulary builder and Chrome extension.

CalculatorFox provides 1,336 free online calculators with step-by-step workings, cited sources, and embeddable widgets, plus paid workspaces for saved scenarios and synced figures across websites.

CiteTrue verifies APA, MLA, and Chicago reference lists against Crossref, PubMed, OpenAlex, arXiv and a dozen other academic indexes, scoring each entry field by field to expose fabricated titles, mismatched authors, drifted years, and invented DOIs before a reviewer finds them.

BlazePDF is a desktop PDF workspace for students, pairing keyboard-first Flow Mode annotation, reusable tool presets, and Smart Duplex or poster-tiled printing with offline, account-free local file handling.