The Lite version is focused on manual trading; it does not support testing EAs (Expert Advisors) or complex scripts.
If you don't know how to code, Lite is likely the better choice. The full version contains many features manual traders never touch. Why pay $200 extra for a tab you will never open? Forex Tester Lite
After 2,000 simulated trades, he had a number: 68.4% win rate. Average win: 22 pips. Average loss: 9 pips. His risk of ruin over 100 trades? Less than 1%. The Lite version is focused on manual trading;