A private journal that works offline
Lendület is a private PWA for meals, movement and daily habits: quick logging on phone and desktop, user-isolated storage and an offline change queue. A ZERN case study.
A daily journal earns its place when adding an entry is easier than postponing it. Lendület brings meals, movement, water and daily habits into one interface. Recorded activity comes first; suggestions follow instead of hiding what the user has already logged.
Data is separated by user. Local storage and a queue of pending changes support connection gaps, with reconciliation when the connection returns. Previously saved meals can be corrected directly instead of working around mistakes with extra entries.
The assistant operates on this same journal rather than maintaining a separate version of the truth. It can only perform permitted operations on the appropriate user's records. Uncertain food information is treated as an estimate, not a measurement. This presentation contains no personal health data.
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