Call Blocker Call Recorder - CallMaster APK

Call Blocker Call Recorder CallMaster brings together spam protection, caller ID, call filtering, and manual call recording in one Android app. It suits people who are tired of telemarketing and robocalls, and anyone who wants a simple way to control who can reach them while optionally recording important conversations.

Focused tools for fighting spam and fraud

CallMaster is built around its spam blocking features. It can identify and block a range of unwanted calls, including spam, robocalls, telemarketing, numbers marked as spam likely, potential fraud, and scam attempts.

You can block unknown callers outright, or let calls through and then react. The app uses both your own device blacklist and an extensive spam database, so you are not limited to manually entered numbers. You can also block specific phone numbers and even contacts from your address book or dialer, which gives you fine control over who can reach you.

After each call, an on screen menu appears that lets you take action on the number you just spoke with. One of the options is to block that caller immediately, which works well if you pick up a telemarketing call by mistake.

Caller ID and real time warnings

Alongside blocking, CallMaster includes caller ID. The app uses a draw over other apps permission to show spam warnings in real time. That way, when the phone rings, you can see at a glance if a number is suspected spam before deciding whether to answer.

The same on screen layer appears after the call, offering quick actions so you do not have to dig through deeper menus to protect yourself from repeat nuisances.

Manual call recording with a simple overlay

Call recording in CallMaster is manual and controlled through an always available overlay that appears above other apps. When you are on a call and want to start recording, you tap a red dot on the screen. The recording runs quietly in the background and stops automatically when you hang up, or you can stop it yourself from the same control.

This approach keeps recording under your control and reduces the risk of accidentally capturing calls you do not mean to save.

Real world behavior, however, shows that recording is not flawless. In at least one case, the app successfully recorded an outgoing call but did not capture an incoming call, and the call log was not updated. That suggests that while the recording feature can work well, it may not handle every call type or device scenario consistently.

Permissions and privacy stance

CallMaster relies on certain system permissions to deliver its features. It uses Android accessibility capabilities to control the volume keys on your device, and it needs permission to appear over other apps to display caller information and spam alerts.

According to the developer, the app does not collect or transmit any kind of information, which means call data and logs are not sent elsewhere from within the app. Users who are cautious about privacy may appreciate this explicit statement.

Premium prompts and reliability concerns

Although promoted as a free app, CallMaster quickly asks for a premium membership. It also requests a review early in use. These prompts arrive soon after installation, which can feel pushy when you are still exploring the basics.

On the functional side, the inconsistency noted with incoming call recording and call log updates is a concern. The app can record outgoing calls effectively, yet may not behave the same way with incoming calls on every device. On at least one Samsung S10, it was one of the few options that could record calls without playing a spoken announcement at the start, but the trade off was uneven handling of different call directions.

Verdict

CallMaster stands out as a practical combination of spam blocker, caller ID, and manual call recorder. Its after call menu and real time spam warnings provide quick ways to react to nuisance calls, and the floating red button makes starting and stopping recordings straightforward.

At the same time, potential buyers should be aware of two key weaknesses: aggressive prompts for a premium subscription and occasional reliability issues with incoming call recording and logging. If your main priority is fighting telemarketing and spam, and you like having manual recording available for important calls, CallMaster is a compelling option worth trying, provided you are comfortable testing how well it behaves on your particular device.