MetaTrack ‑ PayPal Track Sync

I was surprised recently to find out that shopify doesn’t send fulfilling tracking to PayPal, after several years in business. There were a couple apps to do the job, this app looked the most polished of the affordable options for the needed task. Confirmed 300 credits per month are free, with 1 shipping number synced costing 1 credit. This should cover what we need at the free tier, but should we go over the 9.99 per-overage fee is fair for the convenience at such a volume. Appreciate the prompt developer response to inquiries about how the credits system works, and the smooth installation for our needs to sync over tracking numbers.