Spam blocker for android - Key

Contains adsIn-app purchases
75.3K reviews
Content rating
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About this app

Spam blocker for android. Works like charm!

How to block spam text messages? How to block text from unknown numbers? How to block spam text messages from email, Gmail? How to block group text messages?

If you faced questions like this, you've arrived at an ultimate solution.

Regain your privacy & peace of mind. Key Messages is the top text & spam blocker for Android. Get rid of spam text messages. It just works!

And there are host of other free & premium features that make Key Messages the versatile messaging app.

Easily block text. Key Messages has the most powerful options to block text messages based on Mobile number, Sender title, Content keyword, email text message and Wildcard rules. Block texts from unknown, block text from non-numbers, block class 0 message. See only desired and useful messages i.e. Key Messages in your clean inbox.

Award winning and strongest spam blocker for Android. It automatically blocks spam text messages from numbers, non-numbers and unknown senders. Our machine learning, AI based technology makes spam blocking better with each day.

Block email spam text messages. Block texts from email addresses, changing Gmail addresses.

Securely backup your valuable text messages online, on your own Google Drive. Automate backup schedule to daily, weekly, monthly. Our unique de-duplication technology avoids message duplication when you restore backup in a new or an existing phone. The Block list and Allow list are also backed up. Enjoy robust & hassle-free SMS backup & restore.

Messages are grouped intelligently based on the varying sender title. Easily see personal & organization SMS in separate tabs. You can also mark important messages as Starred and find them in a separate folder. As the name suggests, Key Messages is designed to prioritize important messages.

See real-time message character count and for how many SMS you will be charged for. Very unique and useful feature of Key Messages. Don’t lose money unknowingly.

Gorgeous and very thoughtful dark theme. It is a pure delight to eyes.

Unlike most other messaging apps, Key Messages is fully MMS compatible. Send and receive MMS easily.

Key Messages works seamlessly with dual SIM. Clearly see on which SIM you received the SMS. Easy design to select SIM while sending message.

Easily find the content that you are looking for.

The most clean & simple interface for an SMS app. It is designed keeping in mind your new age messaging needs and helping you achieve that in the most efficient way.

May it be few or tens of thousand messages in your Inbox, Key Messages app is meticulously engineered for a smooth, robust and reliable performance.

There are several free features for blocking text. For more advanced blocking choices, there are Premium features too, like - Blocking based on Keyword, blocking email texts or group messages, instant deletion of spam.

Many more features are under development. Try Key Messages. You will love it.

All trademarks are owned by respective owners. Key Messages was earlier known as Clean Inbox.
Updated on
Nov 20, 2023

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
App activity, App info and performance, and Device or other IDs
This app may collect these data types
Location and Messages
Data isn’t encrypted
Data can’t be deleted

Ratings and reviews

74.3K reviews
August 3, 2023
This is a standalone sms messaging app, not a spam filter that could be used with an existing one. As such, there are certain features that are standard in a messaging app, like the ability to open the contacts list or schedule a message that are missing here. So you have to decide what is more important, unwanted sms spam or these above inconveniences.
19 people found this review helpful
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Stephanie Zimmerman
November 9, 2023
Works great at filtering spam, would give it 5 stars but I can't save photos or any attachment that were texted to me, when you hit save it says it can't. And you can't highlight text in a message, like if someone texts you their address and you want to copy/paste it into navigation or you get one of those dual authentication codes, you can't just highlight and copy the relevant data out of the message. I paid for the full version so its disappointing it doesn't work fully.
3 people found this review helpful
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A Google user
October 30, 2018
It's good. The only thing I would like to be available is the ability to choose the save directory for photos and videos that I receive. Edit: I clearly set spam block reminders to none, but I still got one at 9. Considering switching if this happens tomorrow night! Should a setting be changed if you tell it to be changed? It shows that I have changed it, but no effect on my choice!
24 people found this review helpful
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Key Messages - Spam Blocker, Text Blocker
October 31, 2018
Hi Brady. If you are still facing the issue, please email us on Thanks.

What's new

- Performance improvement