Gym WiFi is unreliable. Mobile data drains battery. Cloud-synced apps hang, fail to load, or refuse to work when the connection drops. Iron Log is local-first by design — everything runs on your device, no internet connection ever required.
Local-first means all data is stored on your device and all processing happens on your device. There's no server call when you open the app, no sync required before you can log a set, and no connectivity error that blocks you from accessing your history.
Most fitness apps sync with a server. This means a slow connection can make the app unresponsive mid-session. It means if the company shuts down, your data disappears. It means you're dependent on infrastructure you don't control.
Iron Log has no infrastructure. There's nothing to go down.
No background network requests means no battery drain from constant syncing. No server round-trips means every action in the app is instant — loading history, calculating analytics, rendering charts. The app is fast because it doesn't wait for anything external.
Download Iron Log on Google Play — no sign-up required.
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