Bugs Found in Idle Crash – Merge Tycoon for iOS
Idle Crash – Merge Tycoon is a fun game that keeps users entertained with beautiful graphics and original gameplay flows. Also, you’ll be literally printing cash in this game, which is definitely not a standard clicker scenario.
The app is original in its execution of classic gameplay and offers a task system to further the player’s entertainment. You also get to evolve your character and implement multiple trend modes for various bonuses.
The QAwerk team had a lot of fun conducting a bug crawl on this app. Our conclusion is that while the gameplay is solid, the reward system has a few bugs that affect the player’s experience. Check out our report below if you want to know how the game makes promises it doesn’t deliver on and how this issue can be rectified.
Rewarded skin remains locked despite watching ad, only gems are granted
Major
- A free skin is available for unlocking by watching a rewarded ad.
- The device has a stable internet connection.
- Launch the game.
- Navigate to the ‘Skins’ screen.
- Select a free skin that can be unlocked by watching an ad.
- Tap the button to watch the rewarded ad.
- Watch the ad until it finishes.
- Return to the ‘Skins’ screen.
OS: iOS 18.4.1
Device: iPhone 12
The selected skin remains locked. Only gems are added to the user’s balance, and a message indicates that another ad is not yet available. The skin becomes available only after approximately 10–15 minutes.
The selected skin should be unlocked immediately after successfully watching the rewarded ad.
User can perform additional wheel spins without watching required rewarded ads
Major
- The user has used the available free wheel spin.
- The ‘Spin’ button displays an advertisement icon.
- Launch the game.
- Navigate to the ‘Spin Wheel’ screen.
- Use the available free spin.
- Observe that the ‘Spin’ button displays an advertisement icon.
- Tap the ‘Spin’ button again without watching an ad.
- Repeat the action several times.
OS: iOS 18.4.1
Device: iPhone 12
The user can perform additional spins without watching rewarded ads, even though the ‘Spin’ button displays an advertisement icon.
After the free spin is used, the user should be required to watch a rewarded ad before each additional spin.
Screen flickers after tapping ‘Restore Purchase’ button
Major
No special preconditions are required.
- Launch the game.
- Open the ‘Settings’ or ‘Shop’ screen containing the ‘Restore Purchase’ button.
- Tap the ‘Restore Purchase’ button.
- Observe the screen.
OS: iOS 18.4.1
Device: iPhone 12
The screen starts flickering after the user taps the ‘Restore Purchase’ button.
The restore purchase request should be processed without screen flickering or other visual issues. A confirmation, loading indicator, or error message should be displayed when appropriate.
‘Not connected’ error message is displayed after first launch despite stable network connection
Minor
- The game is installed and launched for the first time.
- The device is connected to a stable network.
- Install the game.
- Ensure that the device has a stable internet connection.
- Launch the game for the first time.
- Observe the initial loading process.
OS: iOS 18.4.1
Device: iPhone 12
A ‘Not connected’ error message is displayed even though the device has a stable network connection.
The game should connect successfully and should not display a network error when a stable connection is available.
During testing, I identified several issues affecting rewarded ads, skin unlocking, wheel spins, purchase restoration, and the initial network connection. The most significant problems are related to the rewarded-ad logic, as rewards are not always granted correctly. I recommend performing additional regression testing of all rewarded-ad scenarios, including delayed rewards, repeated taps, interrupted ads, network changes, app backgrounding, and multiple reward attempts.

