# Can't test app on Thunkable **URL:** https://community.thunkable.com/t/cant-test-app-on-thunkable/1130828 **Category:** Questions about Thunkable X **Created:** [February 28, 2021, 4:40am UTC](https://community.thunkable.com/t/cant-test-app-on-thunkable/1130828 "2021-02-28T04:40:54Z") **Posts on this page:** 4 **Page:** 1
### Author: ![krrish](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/krrish/32/97273_2.png) [@krrish](https://community.thunkable.com/u/krrish) #### Post date: [February 28, 2021, 4:40am UTC](https://community.thunkable.com/t/cant-test-app-on-thunkable/1130828/1 "2021-02-28T04:40:54Z")
Other apps are working fine but whenever I try to test this app on anything, it just gets stuck on a white screen. [Thunkable](https://x.thunkable.com/copy/984d7439edc3908aeafd84527270aaec) ---
### Author: ![Deluxe](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/deluxe/32/30016_2.png) [@Deluxe](https://community.thunkable.com/u/Deluxe) #### Post date: [February 28, 2021, 5:37am UTC](https://community.thunkable.com/t/cant-test-app-on-thunkable/1130828/2 "2021-02-28T05:37:23Z")
Since the sum of those two will never get greater than 18: ![image](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/2/2/22dd9ef0cd0ec0d6c55e9b849401d68f66e914b1.png) …you cannot expect this condition to be satisfied: ![image](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/1/c/1cb21f2ae0bc91b468f9585131c767bb52d1a5c6.png) Your app goes into an infinite loop and endlessly generates random numbers. You need to check your logic. Please make this answer as the Solution to your question if you feel it helps. Thanks K ---
### Author: ![krrish](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/krrish/32/97273_2.png) [@krrish](https://community.thunkable.com/u/krrish) #### Post date: [February 28, 2021, 6:22am UTC](https://community.thunkable.com/t/cant-test-app-on-thunkable/1130828/3 "2021-02-28T06:22:17Z")
Oops, must have mistyped! ---
### Author: ![ioannis](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/ioannis/32/146956_2.png) [@ioannis](https://community.thunkable.com/u/ioannis) #### Post date: [November 8, 2024, 1:29pm UTC](https://community.thunkable.com/t/cant-test-app-on-thunkable/1130828/4 "2024-11-08T13:29:06Z")