How our apps work, and what to check before you install one — from a small team of engineers.https://apps.swtlm.com/enhttps://apps.swtlm.com/blog/what-a-puzzle-game-subscription-costshttps://apps.swtlm.com/blog/what-a-puzzle-game-subscription-costsA $4.99 monthly puzzle game is $180 over three years. Here is the arithmetic, the three ways games charge, and how to work out which one you are in.Sat, 15 Aug 2026 12:00:00 GMTGameshttps://apps.swtlm.com/blog/how-to-mix-sleep-sounds-that-mask-noisehttps://apps.swtlm.com/blog/how-to-mix-sleep-sounds-that-mask-noiseTurning it up is the wrong lever. Masking works by covering the frequencies the noise lives in — which is a mixing problem, not a volume one.Tue, 11 Aug 2026 12:00:00 GMTHealth & Sleephttps://apps.swtlm.com/blog/add-a-loyalty-card-to-your-phone-wallethttps://apps.swtlm.com/blog/add-a-loyalty-card-to-your-phone-walletMost shops never made a wallet pass, so the Add-to-Wallet button does not exist. Here is what works on iPhone and Android, and what scanners need.Thu, 06 Aug 2026 12:00:00 GMTToolshttps://apps.swtlm.com/blog/what-age-can-a-child-start-sudokuhttps://apps.swtlm.com/blog/what-age-can-a-child-start-sudokuAround four, on a 4×4 grid — much earlier than most people assume. The size of the grid decides the age, not the child's arithmetic.Mon, 03 Aug 2026 12:00:00 GMTKidshttps://apps.swtlm.com/blog/where-your-health-app-data-goeshttps://apps.swtlm.com/blog/where-your-health-app-data-goesA tracker does not need a server to store your readings. Here is how to read the store disclosures, and what an account requirement really tells you.Wed, 29 Jul 2026 12:00:00 GMTHealth & Sleephttps://apps.swtlm.com/blog/are-mahjong-solitaire-boards-always-solvablehttps://apps.swtlm.com/blog/are-mahjong-solitaire-boards-always-solvableMost mahjong deals are shuffled at random, and a real share of those cannot be won at all. Here is how a board is made solvable, and how to tell.Fri, 24 Jul 2026 12:00:00 GMTGameshttps://apps.swtlm.com/blog/what-ping-jitter-and-packet-loss-meanhttps://apps.swtlm.com/blog/what-ping-jitter-and-packet-loss-meanA good ping depends entirely on what you are doing. Here is what each number measures, what counts as fine, and which one ruins a video call.Tue, 21 Jul 2026 12:00:00 GMTToolshttps://apps.swtlm.com/blog/what-to-check-before-installing-a-kids-apphttps://apps.swtlm.com/blog/what-to-check-before-installing-a-kids-appBoth app stores tell you whether a kids app has ads, purchases and data collection. Here is exactly where each disclosure is, and what it leaves out.Fri, 17 Jul 2026 12:00:00 GMTKidshttps://apps.swtlm.com/blog/blood-pressure-log-for-your-doctorhttps://apps.swtlm.com/blog/blood-pressure-log-for-your-doctorA list of numbers gets skimmed. Six columns, a consistent time of day and a one-page summary get read. Here is what makes the difference.Tue, 14 Jul 2026 12:00:00 GMTHealth & Sleephttps://apps.swtlm.com/blog/block-puzzle-strategy-keeping-the-board-openhttps://apps.swtlm.com/blog/block-puzzle-strategy-keeping-the-board-openMost block puzzle guides list tips. There is really only one idea — always leave room for the worst piece you could be dealt. Here is how to apply it.Thu, 09 Jul 2026 12:00:00 GMTGameshttps://apps.swtlm.com/blog/is-it-my-wifi-or-the-internethttps://apps.swtlm.com/blog/is-it-my-wifi-or-the-internetFour checks, in order, from your phone, with no terminal needed. Each one rules out a different piece, so you know who to restart or who to call.Mon, 06 Jul 2026 12:00:00 GMTToolshttps://apps.swtlm.com/blog/offline-games-for-kidshttps://apps.swtlm.com/blog/offline-games-for-kidsMost apps listed as offline still need a connection at some point. There are three different meanings, and one test that tells you which one you have.Thu, 02 Jul 2026 12:00:00 GMTKids