Blog
Practical notes from a solo developer. Prices, rules, and tax numbers, checked against the source on the day I wrote each one.
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Free blackjack basic strategy trainer for iPhone compared
Five free iPhone blackjack basic strategy trainers compared on ads, in-app purchases, and rule settings. One of them is my own app.
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Invoicing app pricing for service businesses, compared
Five invoicing tools compared on plans, free-plan limits, and what 60 invoices a month cost on each.
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Mileage tracker for delivery drivers: what the IRS lets you deduct
Which delivery miles count as business miles, the 2026 IRS rates, and what a mileage log needs.
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