SMS Spam Stopper vs Textkiller
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SMS Spam Stopper
Automatically block unwanted spam messages using AI and heuristic detection. Customize blocked words, numbers, and filter unknown senders to keep your inbox clean. Protects against abusive language and allows whitelisting of important messages like OTPs.
- 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
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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.
Textkiller
This app automatically blocks unwanted spam text messages, protecting you from scams and telemarketing. It offers customizable filtering options, a constantly updated global block list, and a privacy-first approach to keep your inbox clean and your personal information secure.
- Automatic spam text elimination
- Global block list updated constantly
- Predictive SMS blocking algorithm
- Customizable blocking (keywords, email, number ranges)
- Block and Allow lists
- Report spam to train algorithm
- Privacy-first algorithm
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Eliminate 99% of spam text messages with Textkiller, and live spam-text free®! Textkiller is the new spam text blocking app that's creating a world without spam texts. With Textkiller, you're instantly protected from more than 100,000,000 known phone scams, and counting! Textkiller's intuitive and easy-to-use features ensure you get all the texts you want, and none that you don't. Textkiller's innovative text blocking technology has already been featured by The New York Times, NBC, Wired, Engadget, Vice, and many other publications. Here are some of Textkiller's highly-reviewed features: Eliminate 99% of spam texts automatically With Textkiller, you're instantly protected from more than 100,000,000 known phone scams - and our global block list is updated every minute. Textkiller's predictive SMS blocking algorithm is also able to determine if an incoming text is spam in less than 0.01 second, keeping you safe from emerging spam texts too! Control who can text you Get good texts only. Textkiller's Block and Allow lists ensure the text messages you want are never blocked, removing all distractions from unwanted and dangerous spam text messages. Customize your text blocking Only Textkiller gives you fully customizable text blocking to ensure you block spam texts on your terms. Other apps only let you block individual phone numbers or text messages, but with Textkiller's keyword-based filtering, email address blocking, and phone number range blocking options, you can fully control how we block your spam texts. Train Textkiller To Get Smarter Report spam texts to Textkiller to help our algorithm get more precise at blocking your spam texts, and ensuring you always get the texts you want. Reporting spam texts also helps to protect other Textkiller users from receiving the same scam! Turn on the Extreme Blocking function, and Textkiller will filter all messages coming from senders outside of your contact list. Keep your money safe from losses to fraud Textkiller prevented 800 USD per year in losses to text scams, according to data reported by the Federal Trade Commission. Privacy-first text blocking Textkiller's patented text blocking algorithm immediately removes any identifying information before making a decision on blocking a text. Your privacy, and personal text messages are always safe with us. Relax and live life spam-text-free® In our busy lives, spam texts are an unnecessary and annoying distraction. Textkiller cleans up your iMessage inbox from annoying spam or telemarketing texts so you can have a bit of peace back in your day. That's what it means to live life spam-text-free. Here's what your spam-text-free life looks like: - No distractions: You can trust when a text notification goes off, it's a message that's meant for you. - Total control: Has your number fallen into the hands of annoying telemarketers or marketing lists? With Textkiller, you decide who can or can't text you - without having to deal with the hassle of trying to unsubscribe. - Zen: While Textkiller can't eliminate all of your daily distractions, we do our best to give you one slice of distraction-free paradise by ridding your phone of annoying spam. Built by people who hate robocalls, spam texts, and respect your privacy, Textkiller will help you take control of who can and can’t text you. We're empowering everyone with a smartphone to create a spam-text-free world. But, we can't do it without you. Try Textkiller free today! Textkiller is free to download. A subscription is required to use the product. Once your trial ends, your subscription will automatically renew. You can cancel at any time. Live life spam-text-free®! Terms of Service: https://www.teltech.co/terms.html Privacy Policy: https://www.teltech.co/privacy.html California Privacy Notice: https://teltech.co/privacy.html#section-8 *** According to the FTC.
Screenshots
Verdict
The clearest difference is price: Textkiller at Free against SMS Spam Stopper's $3.99. Textkiller also leads on update cadence (every 2 weeks vs every 6 months) and ratings volume (13K vs 37). SMS Spam Stopper's advantage is review sentiment (73% vs 37%) and in-app purchases (none vs 10). On rating, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Textkiller is free to download; SMS Spam Stopper costs $3.99 up front. Textkiller sells 9 in-app purchases, starting at $4.99 per 7 days. SMS Spam Stopper asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.2 for SMS Spam Stopper against 4.3 for Textkiller. That said, the two scores are not equally well evidenced: Textkiller has 13K ratings behind it against 37, so its average is the more settled of the two. Written reviews are what separate them: 73% of SMS Spam Stopper's written reviews are positive against 37% of Textkiller's.
SMS Spam Stopper ships an update every 6 months, Textkiller every 2 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | SMS Spam Stopper | Textkiller |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 4.2 (37 ratings) | 4.3 (13K ratings) — better |
| Positive reviews | 73.0% of reviews — better | 36.9% of reviews |
| Number of ratings | 37 | 13K — better |
| Update frequency | Every 6 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 71 MB | 108 MB |
| Age rating | 4+ | 4+ |
| Developer | Ruchira Ramesh | Mosaic S.r.l. |
Customer experience
SMS Spam Stopper
Textkiller
Bugs and requests
SMS Spam Stopper
Not enough reviews yet to summarise bugs or requests.
Textkiller
Reported bugs
4 issues- App crashes during setup
- Keyword blocking not working as expected
- Junk messages still getting through
- Issues contacting support
Requested features
4 requests- Sync blocked list across devices
- Automatically delete junk messages
- Better integration with Apple Watch
- More transparency on how filtering works
In-app purchases
SMS Spam Stopper
No in-app purchases
Textkiller
- Textkiller Pro$4.997 Days
- TextKiller Pro with Free Trial7 Days trial$4.997 Days
- Monthly Premium Protection7 Days trial$5.991 Month
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- Monthly Premium Protection$5.991 Month
- Monthly Premium Protection7 Days trial2 variants$7.991 Month
- Yearly Premium Protection7 Days trial$69.991 Year
- Textkiller Pro$69.991 Year
- Textkiller Pro with Free Trial7 Days trial$69.991 Year
- Yearly Premium Protection7 Days trial$79.991 Year
Questions
Is SMS Spam Stopper free?
Is Textkiller free?
Which has better reviews, SMS Spam Stopper or Textkiller?
Do SMS Spam Stopper or Textkiller have ads?
Which is updated more often, SMS Spam Stopper or Textkiller?
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