Any good free statistics tools?

I've tried the following websites:
- Iconosquare
- Simply Measured
- SumAll
- Collecto

Have tried many apps too, but you must pay to see most of the details.

Do you know any good free tool?

If you're just looking for your gain/loss of followers and dates of when you'll reach a goal following - check out socialblade.com/instagram/ you might not be on there yet so just type in your username in the search bar and wait a day for it to start collecting data!