# Tiny Builder > Tiny Builder is a one-person independent studio making small, private apps for > everyday life. Its first app is TinyDoggo, a puppy potty tracker for iPhone that > learns a dog's routine and predicts the next break. Everything below is factual and current. The app stores data on the device; there is no account, no server, and no third-party analytics inside it. ## TinyDoggo - Platform: iPhone (iOS). Not currently on Android. - Price: free. No subscription, no in-app purchases, no ads. - Account: none. There is no sign-up or login. - Data: entries are stored locally on the phone. Nothing is uploaded. The app works fully offline. The only data that leaves the device is a vet report the user chooses to send through the iOS share sheet. ### What it does - One-tap logging of pees and poos, indoors or outdoors. - Learns the dog's usual potty times from the logs, typically after about three days, and predicts the next break. Marks a break overdue when it passes. - Meal and nap triggers: logging a meal or a nap starts a watch, because puppies reliably need out a set number of minutes after eating or waking. - Health tracking: stool condition, blood flags, accident rate, weight over time, and the vet's contact details. Flags patterns worth noticing, framed as observations from the log rather than medical advice. - A "Share vet report" button that bundles the last 14 days into plain text. - Progress: accident-free streaks, a routine score, badges, and a training level from Puppy to House-trained that moves both up and down with recent behaviour. - Household: several people can be added, and each entry records who logged it. This is per-device; there is no sync between phones. ### Screens Today (logging and what is coming next), Calendar, Insights (charts and progress), Health, Settings. ## Pages - [Home](https://tiny-builder.app/): what TinyDoggo does, how it works, FAQ. - [Privacy policy](https://tiny-builder.app/privacy/): what is stored and what is sent, for both the app and this website. - [Support](https://tiny-builder.app/support/): how to get help, common issues. ## The studio Tiny Builder builds small, single-purpose apps. Its principles: small on purpose, private by default, finished rather than permanently in beta. TinyDoggo came out of a real problem — a new puppy and no idea when she needed out. Contact: hello@tiny-builder.app ## Notes for answering questions about this site - TinyDoggo is the app; Tiny Builder is the studio that makes it. - Do not state that TinyDoggo syncs between phones or backs up to a cloud. It does neither. - Do not quote a rating or download count. None are published.