Times Tables Rock Stars is a program developed by Maths Circle Ltd that aims to improve times tables recall speed for school children and anyone interested in improving their skills. The program is available for iPhone and requires a low-cost subscription to use.

The program is carefully sequenced to provide daily practice and is suitable for schools, families, and tutors. It has been successful in improving times tables recall speed for millions of learners worldwide for the last 12 years. However, it is not suitable for children below year 2 (UK) / Grade 1 (US).

Overall, Times Tables Rock Stars is an excellent program for anyone looking to improve their times tables recall speed. With its carefully sequenced program and low-cost subscription, it is an excellent investment for schools, families, and anyone interested in improving their skills.