The guides on this site answer questions about problems that one of our iPhone apps works on: recording a long session, keeping two accounts apart, logging business miles, documenting a job. This page says who writes them and what you can rely on in them.
Who writes them
Sang Cao, who designs, builds and supports the apps on this site. A guide that mentions one of those apps says so in plain words — “my own app” — and keeps it to its own section, after the question has been answered without it.
Where the facts come from
- About our own apps: the app’s code and its release notes, not plans or roadmaps. A feature that has not shipped is not described as if it had.
- About other apps: their App Store page and their own website, read on the date given in the guide. Prices, plans and ratings change, so that date matters; check the listing before you buy.
- Rules and research: the primary source — IRS publications for tax questions, Apple’s own documentation and guidelines for what iOS allows, and the published studies themselves for learning and child development, cited by author and year.
How they are written and checked
Drafts are written with AI assistance. Figures, prices and claims about how an app or iOS behaves are checked against the sources above before a guide is published, and the guide says when they were read.
A guide shows its publish date, and an “Updated” date only when something a reader relies on has changed — a price, a step, a limit. Rewording does not change it.
What this site does not do
No advertising, no affiliate links and no paid placements. No app pays to be included in a comparison or to be left out of one.
Mistakes
If something in a guide is wrong or out of date, write to sangcaolabs@gmail.com with the page and what you found. Corrections are made in the guide itself and dated.