# BTCBitByBit — Full Context > Family Bitcoin education app. Self-custody Lightning + Liquid + on-chain wallet, Learn-and-Earn courses with sats rewards, family chore management with Bitcoin allowances, and sats-back on subscriptions. iOS, Android, and web. BTCBitByBit (KayGee.Tech Ltd, London) is a Bitcoin education platform built for parents and kids to learn Bitcoin together. Users keep their own private keys — we never custody funds. This is the full-content companion to /llms.txt: it inlines the key facts so an assistant can answer from a single fetch. ## What it is A family-oriented Bitcoin education app available on iOS, Android, and web. Parents and kids learn Bitcoin together through interactive courses and earn real sats (satoshis) as rewards. It combines: an all-in-one self-custody wallet (Lightning, Liquid, and on-chain), Learn-and-Earn courses that pay sats, and a Family Corner where parents fund chores and allowances in Bitcoin. ## Self-custody (how funds work) Users hold their own private keys. Wallets are self-custody, powered by the Breez SDK on the Liquid Network, supporting Lightning, Liquid, and on-chain Bitcoin in one app. BTCBitByBit never holds keys and cannot access user funds. No ID verification (KYC) is required for the self-custody education product. ## Plans and pricing Four tiers. Prices shown GBP · USD · EUR · JPY; local price localises on the App Store / Google Play. - **Free — £0.** All-in-one self-custody wallet (Lightning, Liquid & on-chain); your keys, your Bitcoin (Breez); beginner Bitcoin courses (4 intro courses); earn sats while you learn. - **Explorer — £2 · $2 · €2 · ¥300 /mo** (yearly £18.99 · $19.99 · €19.99 · ¥3,000). Everything in Free; all Bitcoin courses unlocked; one lesson per day (a daily-habit tier); streak multiplier — longer streaks earn more sats. No monthly sats-back (earns via the streak instead). - **Standard — £10 · $12 · €14 · ¥2,290 /mo** (yearly £96 · $120.99 · €129.99 · ¥20,000). Everything in Free; every course, no daily cap; top sats rate on every lesson; bonus sats for achievement milestones; **50% sats-back every month (~£5 worth of sats)**. - **Premium — £20 · $22 · €23 · ¥3,500 /mo** (yearly £229.99 · $309.99 · €249.99 · ¥35,000). Everything in Standard; Family Corner (up to 5 children); chores & allowances paid in sats; a second parent account; **50% sats-back every month (~£10 worth of sats)**. Kids never need their own subscription — they're covered under a parent's plan. With promo codes, sats-back can reach up to 100% of the subscription. ## How earning works Two reward models, depending on tier: - **Explorer (streak multiplier).** One lesson per day. The same lesson pays more the longer your daily streak: Day 1–6 = 0.5×, Day 7–29 = 0.75×, Day 30–99 = 1×, Day 100+ = 2×. (A 100-sat lesson pays 50 / 75 / 100 / 200 sats accordingly.) Course progress checkpoints every 3 lessons. - **Standard & Premium (top rate + milestones + sats-back).** Top sats rate on every lesson with no daily cap and no streak required, plus one-off streak-milestone bonuses (Day 3 +180, Day 7 +450, Day 14 +950, Day 30 +2,000, Day 60 +4,000, Day 90 +6,500 sats), plus a monthly sats-back credit (Standard ~£5, Premium ~£10 worth of sats; the sat amount varies with the Bitcoin price). - **Chores (Family Corner).** Parents set chores and fund Bitcoin allowances; kids earn sats on completion. All earned sats are spendable from the child's own self-custody wallet. ## Family Corner (Premium) For parents: set up accounts for up to 5 children plus a second parent account, manage chores and allowances paid in sats, and oversee each child's learning progress — while the parent holds the keys. ## Courses Free web topic guides (the full 50+ course catalogue lives in the app): - All courses — topic hub for the whole family, beginner to advanced, plus kids. - Bitcoin foundations — what Bitcoin is and how it works. - Wallets & self-custody — hold your own keys safely. - Scams & safety — spot scams and protect your sats. - Nostr & decentralised social — own your identity online with an open protocol. - CBDCs & digital ID — programmable money and the control questions (even-handed). - Staying current — follow Bitcoin and money without the noise. - For kids — age-appropriate Bitcoin learning for children. - For parents — how to teach your kids Bitcoin. ## Security Self-custody (your keys, your Bitcoin), Lightning network support, end-to-end encryption, and biometric authentication. ## Frequently asked - **What is BTCBitByBit?** A family Bitcoin education app where parents and kids learn Bitcoin together through interactive courses and earn sats as rewards. Includes a self-custody Lightning wallet, family chore management with Bitcoin allowances, and Learn-and-Earn modules for all ages. - **Who controls the Bitcoin?** Users do. Self-custody wallets powered by the Breez SDK on the Liquid Network. We never hold private keys. - **How do kids earn Bitcoin?** Two routes: completing Learn-and-Earn modules, and completing chores set by parents who fund Bitcoin allowances. All earned sats are spendable. - **Is it free?** Yes — a free tier is available. The Premium family plan (£20/mo) covers up to 5 kids and a second parent. Kids never need their own subscription. There is also a low-cost Explorer tier (£2/mo) and a Standard tier (£10/mo). - **What is sats-back?** On Standard and Premium, subscribers receive 50% of their subscription back in sats each month (up to 100% with promo codes). Explorer earns sats per lesson via a streak multiplier instead. - **Do kids need KYC?** No. Self-custody Bitcoin education — no ID verification required. ## Apps - iOS App Store: https://apps.apple.com/us/app/btcbitbybit/id6754315366 - Google Play: https://play.google.com/store/apps/details?id=com.btcbitbybit ## Key pages - Home: https://www.btcbitbybit.com/ - Sign up: https://www.btcbitbybit.com/joinus - Pricing: https://www.btcbitbybit.com/#pricing - Explorer plan: https://www.btcbitbybit.com/explorer - Family Corner: https://www.btcbitbybit.com/family-corner - Courses: https://www.btcbitbybit.com/courses - Blog: https://www.btcbitbybit.com/blog - Support: https://www.btcbitbybit.com/support ## Brand and contact - Legal entity: KayGee.Tech Ltd, 86-90 Paul Street, London, EC2A 4NE, United Kingdom. - Support: support@btcbitbybit.com - WhatsApp: +44 7708 602036 - X / Twitter: https://x.com/BTCBitByBit - Instagram: https://www.instagram.com/btcbitbybit/ - Facebook: https://www.facebook.com/61586655435838/ ## Sitemaps - Main sitemap: https://www.btcbitbybit.com/sitemap.xml - Blog sitemap: https://www.btcbitbybit.com/blog/sitemap.xml