Hi all, I have a little game coming out soon for the iOS. Its a small collection of simple minigames. You will need to earn coins to unlock the games and coins are earned by playing the games themselves. I am not going to make it very "grindy" by setting a high unlocking cost, i believe that is a turn off. In addition to the relatively low cost of unlocking games, the amount of coins earned by the player will also increase the more he/she plays. With such a design, I would not implement IAP for buying coins (furthermore as it is, a collection of 6-8 30 seconds minigames, i doubt anyone would feel worthwhile to buy coins) The game would be available for free, ad supported. I am thinking of providing one IAP option of simply disabling the ads and perhaps upon doing so, giving the player a reasonable amount of bonus coins as incentive. What do you guys think? Is ad removal a viable model? Will there be any foreseeable obstacle in implementing the ad removal option (a one-time permanent purchase) together with the bonus coins (consumable item)?