Five mistakes teams make with offline-first design
We end up explaining this on discovery calls often enough that it deserved writing down. These are the ones we run into repeatedly when we audit offline-first design.
You do not control the device, the network, or the operating system version, and the design has to accept that. It rarely shows up as a line item, which is exactly why it slips.
The mistakes we see most
- Treating it as a launch task rather than an ongoing one
- Assuming someone else already owns it
- Connections drop, and the app should keep working
- Conflict resolution is the part teams forget to design
- Never checking whether the fix actually worked
Show sync state so people trust what they see. The cost of getting this wrong is rarely visible on the day it happens. The failure mode is not doing it wrong, it is doing it once and assuming it stays done.
What to do next
What this looks like day to day
Mobile releases are slower to correct than web ones, so the cost of shipping a mistake is higher. Three things worth confirming about offline-first design before you move on:
- Someone can say what the current setup is without going to look
- Show sync state so people trust what they see — and you know whether that is true here
- There is a way to tell whether the last change to this helped
None of this needs a rewrite. Most of it is a morning's work once someone decides to do it.