Both Roth and Traditional IRAs help you save for retirement, but they treat taxes differently. Traditional contributions may be tax-deductible now, while Roth withdrawals are tax-free in retirement.
If you expect to be in a higher tax bracket in retirement, a Roth IRA is often the better choice. If you expect to be in a lower bracket, a Traditional IRA may save you more today.
Many people use a mix of both to give themselves flexibility when they retire.