We chose PSoC over Apollo because it has a dual core, M4 core runs at 150 MHz, it has secure functionality and locked down and certified LoRaWAN stack. All of this is not possible with Apollo 2 blue.
PSoC 6 bridges the gap between expensive, power hungry application processors and low‑performance microcontrollers (MCUs). The ultra‑low‑power PSoC 6 MCU architecture offers the processing performance needed by IoT devices, eliminating the tradeoffs between power and performance. The PSoC 6 MCU contains a dual‑core architecture, with both cores on a single chip. It has an Arm® Cortex®‑M4 for high‑performance tasks, and an Arm® Cortex®‑M0+ for low-power tasks, and with security built-in, your IoT system is protected.