how many insidious movies are there

There are currently five Insidious movies in the main franchise:

1. Insidious (2010)
2. Insidious: Chapter 2 (2013)
3. Insidious: Chapter 3 (2015)
4. Insidious: The Last Key (2018)
5. Insidious: The Red Door (2023)

Additionally, a sixth film and a spin-off titled "Thread: An Insidious Tale" are in development but not yet released.