Tricky Old Teacher will typically cost you $29.95 per month, however if you select a 3 or 12-month plan at checkout you’ll receive an incredible discount. The best option overall is the 1-year plan for $99.95. With this plan, you make an upfront payment of $99.95 and in exchange pay an average of $8.33 per month – a 72% discount. The 3-month plan, while not as good of a deal as the yearlong plan, still offers solid savings. This quarterly plan costs $59.95 which is just $19.98 per month if you do the math.