Why does information about a caller only show after a finished call?

If Clever Dialer can identify a call, it shows Caller-ID or Spam-Warning as soon as the call comes in.
That’s how it can look like:

If the app doesn’t, though, it can be for various reasons.

Feature has not been enabled in settings

In the Clever Dialer settings, there is an option that says “Information before a call”. There you can choose from various options what the app should show you for incoming calls.

If everything is set correctly, and you still do not see any information for incoming calls, it might have other reasons.

Missing permission

In this case, the information will not be shown because Clever Dialer lacks a permission which is essential for this feature. The permission can be granted as follows:

Samsung

  1. Open Settings
  2. Choose Apps
  3. Pick Clever Dialer
  4. Scroll down to Advanced (on some devices this step is not necessary)
  5. Choose Display over other apps
  6. Grant permission

Huawei

  1. Open Settings
  2. Choose Apps
  3. Apps
  4. In the list, find and open Clever Dialer
  5. Tap on Display over other apps and activate the option

Motorola

  1. Open Settings
  2. Choose Apps & Notifications
  3. Pick Clever Dialer
  4. Choose Advanced
  5. Pick Display over other apps and activate the option

Nokia

  1. Open Settings
  2. Choose Apps & Notifications
  3. Choose Advanced
  4. Select special app access
  5. Choose Display over other apps
  6. In the list, find and open Clever Dialer

Xiaomi

  1. Open Settings
  2. Choose Passwords & Security
  3. Pick Security
  4. Select special app access
  5. Choose Display over other apps
  6. In the list, find and open Clever Dialer