About Smart Toolbox

Smart Toolbox is an independent resource for five everyday frictions: receipts, company research, casual puzzles, international pet travel, and iPhone storage. We publish free tools and guides backed by five indie iOS apps that each do one of those jobs well.

Why small focused apps

Most "all-in-one" apps add features faster than they polish them. We took the opposite path — five iOS apps, each tackling a single task. The free tools on this site let you try the core idea of each app right in the browser, with no signup.

Our iPhone apps

• Expra — Snap a receipt; categorise and total for tax time.
• HQLens — See every S&P 500 headquarters on a map with hiring and financial context.
• Nomori: Nonogram — Daily picross puzzles, no ads to break flow.
• Petport — USDA APHIS / DEFRA / MAFF / EU pet travel procedures as one deadline checklist.
• Slimroll — Find duplicates and large videos on iPhone without uploading photos anywhere.

Editorial standards

Articles are drafted with AI assistance and reviewed by humans before publishing. Tax content cites the IRS and explicitly notes it is not tax advice. Company information cites SEC filings and corporate press releases. Pet travel content cites USDA APHIS, UK DEFRA, Japan MAFF, and the European Commission — and we date every section because rules change.

What we are not

Not a tax advisor. Not a financial advisor. Not a veterinarian. Not a customs broker. Use the tools as starting points and verify the high-stakes details with the relevant professional or government source.

Contact

For corrections or feedback, email jinnsim@icloud.com.