# SMS Filter — Protection from SMS spam > Filters spam and junk SMS messages using keyword and number blocking. (iPhone/iPad app by ThreeSea Technologies Private Limited.) - Source: https://appshunter.io/ios/app/sms-filter/id1288532057 (this page in markdown: same URL + `.md`) - Developer: [ThreeSea Technologies Private Limited](https://appshunter.io/developer/522070015) - Category: Utilities, Productivity - Price: Free with in-app purchases - Rating: 4.38/5 from 8 App Store ratings · 3 written reviews indexed - Age rating: 4+ - Requires: iOS 11.0 · 16 MB - Languages: English - Released: 2017-11-04 - Data updated: 2026-06-10 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/sms-filter/id1288532057/reviews.md ## What is SMS Filter? 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 support@nfnlabs.in 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 and Terms: https://nfnlabs.in/sms-filter-privacy-terms ************************************** 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. ## Key features - Spam keyword filtering - Custom block list - Whitelist for important messages - Privacy-focused, no data transmission - Free trial period ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Yearly Plan | $1.99 | per year | ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/sms-filter/id1288532057/reviews.md ### 5/5 — Best available. *2020-09-29* Excellent job. Does exactly what it says. No special knowledge required. Even idiots like me can use it. ### 5/5 — Unique Spam Blocking App! *2020-07-28, version 1.3.1* For Myself I find this a nicely unique design app that does what it tells you it was Designed to Handle Your Spam Data! I feel Like the Developers information states the fact that it was Uniquely Designed ease of operation making easy to instantly install! I believe it is right up there with a App you will want to download today and start getting the benefits of a great text blocking spam App! Try today the free trial set up by the Developers I believe you will not be disappointed or sorry you Did! ( Really ) Thanks ### 1/5 — Doesn’t work to block s - you can input multiple ways but doesn’t work don’t waste your time *2018-10-04, version 1.1* 0 stars **Developer response:** Sigh, we are sad that the app is not working according to your expectations. If you get a lot of junk messages from the same sender and an important message like OTP comes in via the same sending, then iOS treats the new message as junk too. This is how it is handled by iOS (even if you have added specific keywords to the whitelist) One option to solve this is to delete the thread first, and then new incoming messages will come in the right folder. ## Frequently asked questions about SMS Filter ### How do I enable SMS Filter on my iPhone? To enable SMS Filter, open your iPhone's Settings app, tap on Messages, then select 'Unknown & Spam', and finally enable SMS Filter. The app provides clear instructions within its description. ### Does SMS Filter have ads? No, SMS Filter does not contain advertisements. The app is free to try for two weeks and then requires an annual subscription. ### What is the pricing for SMS Filter? SMS Filter offers a free trial for 2 weeks. After the trial, an annual plan is available for $1.99. You can cancel the subscription anytime before the trial ends to avoid charges. ### Can I customize the filtering in SMS Filter? Yes, you can customize the filtering by adding your own block list of keywords or specific phone numbers. You can also add keywords to a whitelist for messages you always want to receive, such as OTPs. ### Is SMS Filter safe and private? Yes, SMS Filter is designed to be private and does not send any of your SMS messages over the network. Your message content remains on your device. ### What devices does SMS Filter support? SMS Filter is compatible with iPhone, iPad, and iPod devices. It is designed for iOS operating systems. ### How often is SMS Filter updated? The latest version of SMS Filter is 1.3.1, and it was last updated on November 6, 2019. Information on update frequency beyond this is not provided. ### What do users think of SMS Filter? SMS Filter has an average rating of 4.4 stars from 8 ratings on the App Store. This suggests generally positive user sentiment regarding its spam filtering capabilities. ## Version history (last 5 releases) ### 1.3.1 — 2019-11-06 - Optimised for iOS 13 and supports dark mode - Bug fixes and performance improvements ### 1.3 — 2019-10-02 Added support for iOS 13 and its dark mode. ### 1.2.1 — 2018-11-20 - Minor design tweaks and bug fixes ### 1.2 — 2018-11-02 - Minor design tweaks and bug fixes ### 1.1 — 2017-11-08 - Ready for iPhone X - Some under the hood improvements - Added advanced settings to customise some preferences ## Apps similar to SMS Filter | App | Rating | Price | Category | | --- | --- | --- | --- | | [Find my family & kids Locator](https://appshunter.io/ios/app/find-my-family-and-kids-locator/id1614427510) | 3.9 (27) | Free | Utilities | | [Netcraft](https://appshunter.io/ios/app/netcraft/id1373265478) | 3.6 (5) | Free | Utilities | | [Voipfone Mobile](https://appshunter.io/ios/app/voipfone-mobile/id593834556) | 1.0 (2) | Free | Utilities | | [Trustd Mobile Security](https://appshunter.io/ios/app/trustd-mobile-security/id1519403888) | 4.7 (287) | Free | Utilities | | [TraceDevice - Car security -](https://appshunter.io/ios/app/tracedevice-car-security/id1478437071) | — | Free | Utilities | | [THG Start](https://appshunter.io/ios/app/thg-start/id1593165820) | 4.2 (5) | Free | Utilities | ## More apps by ThreeSea Technologies Private Limited - [Screeny 3.0](https://appshunter.io/ios/app/screeny-30/id941121450) - [Water - Reminder and Tracker](https://appshunter.io/ios/app/water-reminder-and-tracker/id1083034031) - [Vookmark - Bookmark videos and watch later](https://appshunter.io/ios/app/vookmark-bookmark-videos-and-watch-later/id1191058485) - [Vookmark - Video Bookmarking](https://appshunter.io/ios/app/vookmark-video-bookmarking/id1194981195) All apps by ThreeSea Technologies Private Limited: https://appshunter.io/developer/522070015 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*