# SMS Spam Stopper — Block spam messages

> AI-powered SMS spam blocker with custom lists and unknown sender filtering. (iPhone/iPad app by Ruchira Ramesh.)

- Source: https://appshunter.io/ios/app/sms-spam-stopper/id1451769591 (this page in markdown: same URL + `.md`)
- Developer: [Ruchira Ramesh](https://appshunter.io/developer/1060129321)
- Category: Utilities, Productivity
- Price: $3.99
- Rating: 4.10/5 from 39 App Store ratings · 37 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 71 MB
- Languages: American English
- Released: 2019-02-13
- Data updated: 2026-09-03
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/sms-spam-stopper/id1451769591/reviews.md

## What is SMS Spam Stopper?

Auto block the SPAM sms & stop the notifications, sound and vibrations for such SMS. The application uses Heuristic detection and Artificial Intelligence to automatically detect the unknown spam sms. It comes with its own database of around 5000 spam SMS messages which is utilized by the Heuristic detection engine to identify SPAM with high detection rates.The blocked SMS are placed inside “Unknown & Junk” section of the “Messages” application.

Blocked Words List : The application also comes with a Blocked list containing 600 known SPAM keywords. The application also scans the SMS against these known SPAM keywords to detect a SPAM SMS. This list could be further customized to add new keywords or modify existing ones.

Abuse Detection : The application is also designed to protect you from the SMS that contains abusive or offensive words. If any such SMS is received, these will automatically be blacklisted and all alerts will be silenced for them.

Blocked Numbers list : If you are getting continuous message from any particular person or service , please add them to the Blocked numbers list. Any SMS from such numbers will automatically be blacklisted by the application.
 
Allowed Words list : This list allows you to whitelist certain SMS types based on keywords such as OTP (One time passwords). To ignore sms containing certain words like OTP, please add those words to this list.

Block all Unknown SMS :  When this option is turned on, the application will block SMS from any number that is not in your contacts. Please note that the application still does not need access to your contacts. The iOS APIs let the application know automatically if the received SMS is an unknown SMS. Your private data is always safe. This is an optional feature and it could be turned on if required.

Note :
a) Starting iOS 14, if a sender is a registered iMessage user and not in your contacts, the iOS will consider this as a legitimate sms and will send it to “Unknown Senders” section and might will show you notification for them. In case you face such situation, please press on “Report Junk” link below such SMS.
b) SMS Spam Stopper is an extension. In order to enable this extension, please visit Settings - Messages - Unknown & Spam. On this page, please enable "Filter Unknown Senders" and "SMS Spam Stopper".
c) The default SPAM keywords are saved in the english language in the application. For other languages, required keywords could be added manually to the blocked words list of the application.
d) The SMS from any person whose number is saved in the phone's contacts will never be treated as spam.

## Key features

- Automatic spam SMS blocking
- Heuristic and AI detection
- Custom blocked words list
- Blocked numbers list
- Filter unknown senders
- Abuse detection
- Allowed words list for whitelisting

## Chart rankings

- #181 in Top Paid · Utilities (US App Store)

## Recent user reviews (10 of 37)

All indexed reviews: https://appshunter.io/ios/app/sms-spam-stopper/id1451769591/reviews.md

### 3/5 — Not worth it

*2025-04-16*

I had hoped that paying for an sms spam stopper would get me a good product. I’ve been using it for a couple of months. Half of the messages in the filtered folder are not spam, and tons of spam does not get filtered.

### 5/5 — Flawless

*2025-02-25*

I get all texts I need, whatever the last reviewer did is user error, must have added words to the block area without realizing.

### 2/5 — It blocks almost everything (for better or worse)

*2024-12-07, version 2.0*

The heuristic detection is a marketing gimmick. It uses a simple word list. As a result, it blocks loads of texts—including most of the texts from restaurants, dentists, banks, etc) that I’d like to get.

### 1/5 — Ripoff

*2024-08-20, version 2.0*

This app is labeled as working on my iPad in the App Store; however, there is no way to enable this app in the Messages settings of a 2018 iPad Pro. I reached out to the developer for assistance. They responded with copy-pasted instructions on how to get a refund which do not work. Now I’m out the cost of the app. Buyer beware.

### 5/5 — Love this app!

*2024-08-07*

I’ve been using this app for years and I love it. It works!!! You can tell it what words to filter into a spam text folder and it’s easy to delete the trash and not have to be constantly interrupted with dumb phishing attempts, political begging and scammers. Five stars all the way, and worth every penny. I appreciate that the developer isn’t in it to siphon off my data, too. Thanks SMS Spam Stopper!

### 1/5 — Doesn’t filter

*2023-02-13, version 2.0*

Hi just purchased the soft for filter spam sms from phone not listed on my contact. I add the number to block list and isn’t stopped the sms from unwanted caller. Have ios 16.3 Will ask refund

I set enable and all what needs, know how to work with filters. I did many tests before writing the review 
Maybe its not supported in ios 16.3

### 5/5 — Incredible. This app really works.

*2022-11-06*

I’m blown away by how well this app works. After installing it, I spent a few minutes adding words to the blocked list based upon words in the spam texts I was receiving most often (usually political). Since downloading the app several months ago, I’ve only received 2 spam texts! The ability to customize and backup the spam filter is a total game changer. Thank you for this app!

**Developer response:** Many thanks for your kind words. We are glad to see your satisfaction from the application.
Regards 
Support Team
Email : support@runisoft­.­com

### 5/5 — My new hero.

*2022-09-22*

I was so stinking frustrated by the constant spam.  It was making me furious and there was no way to stop it.  I installed this app and they disappeared.  Frankly it worked so well that I didn’t know for sure it was doing anything, I thought maybe there had been some other solution that finally got me off the irritating political spam list.  I just looked today at the new iOS junk folder feature.  This app had taken care of 70 spam texts in the last couple weeks.  Amazing.  SO worth it.

**Developer response:** Many thanks for your kind words. We are happy to see your satisfaction from the application.
Regards 
Support Team
Email : support@runisoft.com

### 5/5 — Finally! Create your own blocklist for keywords

*2022-02-14, version 1.8*

I sometimes get 8-10 spam texts a day. This app has allowed me to go an entire 24 hours without even one spam text bothering me. Nothing else I’ve tried- not Malwarebytes, not Robokiller- has been able to deliver on their promise to eliminate spam. This does!

I just took a peek in the junk folder and there they all are- trying to get me to click on sketchy links, selling nonsense, begging for my vote. Whereas once these unwanted messages harassed me day and night, now they silently self-segregate into a junk folder, not bothering me, thanks to this perfect app. 

Well worth the tiny price. The people complaining about the app not working properly didn’t follow the simple setup instructions. You just give the app permission to filter text from unknown numbers, that’s it. 

When you install the app and click to open, it shows you two minute-long tutorial videos for how to quickly and easily optimize your settings. Seamless. Thanks so much to the developer!

### 5/5 — IT JUST WORKS👍🏾💯😁

*2021-06-28, version 1.8*

I had been receiving annoying text messages from all types of illicit places and it was driving me crazy. It’s one thing to receive those type of messages when you frequent certain sites but when you don’t it’s down right infuriating. After going to my carrier(Verizon) and the Apple store with NO HELPFUL SOLUTION I found this app from a YouTube video. They tell you up front that it’s not free but the fee is very affordable and ONE TIME ONLY not a “rip off” subscription. Once you go in and add some target words NOTHING and I do mean NOTHING gets through. This is the BEST SPAM STOPPER EVER..!!! Thank you so much to the team that developed this app. I waited a couple of months to give a review bc I wanted it to be fair and honest.

## Frequently asked questions about SMS Spam Stopper

### What does SMS Spam Stopper do?

SMS Spam Stopper automatically blocks unwanted spam text messages. It uses artificial intelligence and heuristic detection to identify and filter out spam, as well as messages containing abusive language. Blocked messages are moved to a separate 'Unknown & Junk' folder.

### How does the app detect spam?

The application employs a combination of heuristic detection and artificial intelligence. It utilizes its own database of approximately 5000 spam SMS messages and scans incoming texts against a list of 600 known spam keywords. This allows for high detection rates of unwanted messages.

### Is SMS Spam Stopper free to use?

Yes, based on the provided information, SMS Spam Stopper is available for free. There are no mentions of in-app purchases, subscriptions, or advertisements, indicating it is a free utility.

### How do I enable SMS Spam Stopper on iOS?

To enable SMS Spam Stopper, you need to activate it as an extension. Go to your iPhone's Settings, then Messages, and select 'Unknown & Spam'. On this page, enable both 'Filter Unknown Senders' and 'SMS Spam Stopper' to activate its functionality.

### Can I customize which messages are blocked?

Yes, you can customize message blocking. The app allows you to create a 'Blocked Words List' to add or modify keywords, a 'Blocked Numbers List' to stop messages from specific contacts, and an 'Allowed Words List' to whitelist certain types of messages, such as OTPs.

## Version history (last 5 releases)

### 2.0 — 2022-05-26

- We have now added the option to Export and Import the database of the application. Using this option now the Allowed and Blocked lists could be backed up and restored easily to any iOS device.
In case of any issue or questions, please write to us on support@runisoft.com. We will be happy to assist.

### 1.8 — 2020-10-25

- Now the "Allowed Words" list will automatically be sorted in the Ascending Order.
- We have updated new tutorial videos of the application for iOS 14.
In case of any questions or issue, please write to us on support@runisoft.com. We will be happy to assist.

### 1.7 — 2020-03-23

- We have added an option block all sms from "Unknown Numbers". This is an optional feature and it could be turned on if required. This option could be found under "Heuristic Detection" settings page of the application. 
In case of any issue or questions, please write to us on support@runisoft.com. We will be happy to assist.

### 1.6 — 2020-02-09

- We have added a new feature to allow the SMS from specified services where the sender does not have any number e.g. "VK-BANK". To allow SMS from such a service like “VK-BANK”, please add it to the “Allowed Words” section. (Please add VK-BANK in this case.) Sometimes, the sender changes the prefix of their identity. For example : You might get multiple SMS from same service using different prefixed ids e.g. “VK-BANK”, “VM-BANK”, “AD-BANK”. To allow receiving SMS from any of these senders, just add “BANK” (without quotes) to the "Allowed Words" list. Alternatively, you could also add the common words found in the text of the SMS to the “Allowed Words” list of the application.
In case of any issue or questions, please write to us on support@runisoft.com. We will be happy to assist.

### 1.4 — 2020-01-22

- As per the request from a few users, we have added an option to delete all keywords in one go under the "Blocked Words" section.
In case of any issue or questions, please write to us on support@runisoft.com for assistance.

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All apps by Ruchira Ramesh: https://appshunter.io/developer/1060129321

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*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 2026-09-03.*