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"I'll owe Tesla around $60 million per year using current rates," wrote James Gragg, the founding developer of the popular Tesla app, Tessie, on Reddit.

Gragg told InsideEVs that Tessie has been planning on adapting to the API changes for more than a year, so it's not something that the dev hasn't planned for. However, the abrupt change and sky-high pricing make it clear the direction that Gragg and many other devs will have to go if they want to keep their apps active in the Tesla ecosystem.

"[W]e'll need to move off of Tesla's web API and to direct car communication [over IP and Bluetooth Low Energy]. Tesla has recently introduced firmware improvements which will allow this. It's not on all cars yet but hopefully will be within the next few months. Since those are low/no-cost methods, hopefully, I can migrate everyone with little to no impact on functionality or price. That's the best-case scenario that I'm shooting for," continued Gragg. "There is a wild amount of effort required, but I'm dead set on making it work."

Effectively, this means removing the real-time access to date from Tesla's always-connected cloud and instead requiring proximity-based connection to the car. For local IP connection, this means being on the same wireless network, and Bluetooth Low Energy requires that the driver's phone be physically within reach of the vehicle.