What I Check Before I Install Any APK

JzaiBaR — Wed, 04 Nov 2026 17:55:53 +0000

Sideloading an app is easy. Trusting it is the hard part. My phone holds my bank, my mail, and my family photos.

First, I check the source page. A clean page shows the version, the size, and the update date. A messy page hides all three.

Second, I compare the file name. It should match the app name exactly. Extra words in the file name are a bad sign.

For APK Netfly download pages and version notes, I read the details at Netfly before I tap install. The page lists what changed in each version.

Third, I scan the file after download. My antivirus gets the first look. Only then does the installer open.

Last, I check permissions after install. A flashlight app needs no contacts. If the list looks wrong, the app goes.

Inches, Centimetres and the CSS Nobody Agrees On

JzaiBaR — Tue, 03 Nov 2026 09:51:32 +0000

Every front-end developer has lost an afternoon to a screen that was "27 inches" in the listing, 68.6 cm in the spec sheet, and somehow a different physical size on the desk. Physical units and CSS units live in different worlds, and confusing them is a rite of passage.

The physical side is simple. One inch is exactly 2.54 cm — defined, not measured. A 27-inch monitor is 68.58 cm diagonally, a 6.1-inch phone is 15.49 cm. When you are comparing hardware, checking whether a monitor fits a desk gap, or reading a US product page from a metric country, an inches to cm converter settles it in one step: inches × 2.54, done.

The CSS side is where it gets weird. A CSS inch (in) is not a physical inch. CSS defines 1in = 96px exactly, anchored to a reference pixel — so on most screens a "2in" element is nowhere near two physical inches. The same goes for CSS cm and mm: they are just scaled fractions of that 96px inch (1cm = 37.8px), useful for print stylesheets, misleading for anything on a desk.

Practical rules that save time.

Hardware and furniture: true units — convert with ×2.54 and trust the tape measure.
Screen layouts: pixels, rem and percentages — never physical units.
Print stylesheets: CSS cm/mm are fine, because the printer pipeline actually honours them.
Buying from US stores: assume listings are inches; convert before you commit, especially for monitor arms, TV mounts and cases, where "close enough" means a return shipment.

Two worlds, two rulebooks. Keep the physical conversions exact and the CSS ones relative, and neither will bite you again.

DEV Community: JzaiBaR

What I Check Before I Install Any APK

Inches, Centimetres and the CSS Nobody Agrees On