Here is the full list of all 15 My Little Pony: A Zephyr Heights Mystery achievements.
Get Izzy
Get Pipp
Get Zipp
Get Misty
Help all ponies in Main Square
Help all ponies in The Mall
Help all ponies in the Theater
Help all ponies in the Royal Gardens
Help all ponies in the Ancient Station
Help all ponies in the Throne Room
Help all ponies in the Theater Night
Cure Sparky of his illness
Get all the emojis
Get the fashion designer's garment
Place your first decorative object