SMS Filter cleans up junk or spam SMSs by using a curated list of spam keywords across different categories. You can add your own block list of keywords or phone numbers to filter spam. If any SMSs have to be always allowed you can add specific keywords to the whitelist as well (like OTP, verification code etc)

SMS Filter is private and never sends any of your SMSs over the network.

How to enable SMS Filter
1. Open Settings App
2. Tap on Messages
3. Tap Unknown and Spam
4. Enable SMS Filter

SMS Filter is free to try for 2 weeks. Only after 2 weeks you will be charged for the annual plan. If you don’t like the service SMS filter provides you can cancel the subscription anytime before 2 weeks and you wont be charged. That said we really hope you like what SMS Filter provides so that you can block unwanted spam and junk SMS on your iPhone easily.

Got feedback or suggestions? We would love to hear from you. Please write to us at or connect with us on Twitter @nfnlabs for faster responses.


Subscription Available: Yearly Plan

Subscription Details:
- Payment will be charged to iTunes Account at confirmation of purchase
- Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period
- Account will be charged for renewal within 24-hours prior to the end of the current period
- If you want to manage subscriptions or turn off auto-renewal, please go to your Account Settings after purchase
- Any unused portion of a free trial period will be forfeited when you purchase a subscription

Privacy Policy:


Your feedback is important to us. If you love using SMS Filter, please leave us a rating and review on the App Store. We will keep working to make it better.

What’s New

Version 1.2.1

- Minor design tweaks and bug fixes

Ratings and Reviews

3.9 out of 5
32 Ratings
32 Ratings
lordrohan ,

Essential if you live in India

I bought this app after years of frustrating messages from bulk SMS companies. I receive around 25 messages per day, and there’s no way to block them or notify the TRAI about them (since they can’t block web based SMS messages).

While the messages still come in, they get filtered into a ‘blocked and spam’ category, and I don’t get notifications of those messages. You can customise the ‘block list’ to prevent SMSs containing certain words, yet allow important SMSs like banking or OTP information to pass through.

It’s a wonderful, simple app, and my life is better for it.

Developer Response ,

Thanks lordrohan, We are keep improving the app.

.a7. ,

Whitelist doesn't work correctly

Tried all possible permutations and combinations with * etc. but some of the entries in Whitelist don't work while some do. Weird..!

Blacklist and default filtering is great though..!

Developer Response ,

If there any existing thread/message from the same sender, delete the thread first, and then new incoming messages will come in the right folder. Still any issues please write to us.

Pranit108 ,

Works as expected

Must have app if you get lots of spam SMS.

Developer Response ,

Thanks for your review Pranit108, It helps us to keep improving the app. :)


Yearly Plan
Yearly Subscription
Free Trial


ThreeSea Technologies Private Limited
15.9 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad and iPod touch.



Age Rating
Rated 4+
© 2018 NFNLabs
In-App Purchases
  1. Yearly Plan ₹ 149


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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