Test mode stays available alongside live. Nothing here changes your sandbox.
Replace ODL_API_KEY in production. Everything else in your code stays the same.
At 1,000 monthly active users reading once a day you are at about 30,000 reads: $499 plus 26,500 × $0.009 = roughly $737 a month on Enterprise. Enterprise Plus brings that down. Talk to us before you get there.
When Strava changes its export, the connector ships a new version. Your users keep their grants. Your code does not change. That is the whole product.