Robokiller: Spam Call Blocker 4+

Stop 99% of Robocalls & Texts

TelTech Systems

    • Free
    • Offers In-App Purchases



Eliminate up to 99% of spam calls with Robokiller. Robokiller’s global database of 1.4 Billion analyzed calls instantly protects you from known phone scams. Our patented audio fingerprinting technology uses machine learning to stop your phone from ringing with annoying, unwanted calls. You can live life spam-call-free® and never miss a legitimate phone call again.

But wait – there's more: Robokiller doesn't just block robocallers and spammers, we annoy the hell out of them, too. If you want Robocall Revenge®, your spam calls can be sent to clever recorded messages called Answer Bots, so they can see what it feels like to have their time wasted. With Robokiller, you can finally get that oh-so-sweet revenge on robocallers.



With Advanced Call Blocking, Robokiller analyzes all unrecognized calls using AI-powered audio fingerprinting technology.


New spammers are continuously added to our global spam radar every MINUTE so your phone never rings from unwanted calls.

Robokiller’s new personal data protection feature scans the web to help you find and remove your private info from public search sites where it's sold and used for spam calls, identity theft and more. Take your info off the market and use our ongoing monitoring to notify you of any new exposures.


Fight bots with bots. Answer Bots deliver payback in hilarious fashion, sending spammers to clever recordings that you can listen to later, driving them crazy and giving you the last laugh.


Eliminate 99% of all spam text messages with Robokiller’s powerful, anonymized SMS blocking algorithm. Block unwanted text messages with accuracy and privacy.

With over 11 Million downloads in the United States, Robokiller is a trusted source of powerful spam call and text protection. But, don’t take our word for it. Robokiller has been featured on The New York Times, NBC Nightly News, Good Morning America, Fox News, and many other publications. Robokiller has also been featured by Apple as a 2019 App of The Day, and won the 2020 Webby Award for Technical Achievement.


• A life without robocalls. Up to 99% of unwanted calls are eliminated within 7 days of signing up

• Get the last laugh on robocallers and scammers with Robokiller’s Answer Bots. You may even WANT to get spam calls

• Help out the community by reporting spammers and providing feedback directly from within the app

• Track emerging scam trends and Robokiller’s efforts to stop them in your area with Robokiller’s NEW Radar feature

• Save an average of $1400/year by preventing phone scams from ever reaching you. Source: FTC

Robokiller is free to download. A subscription is required to use the service, but you can try it out completely free for 7 days. Once the trial ends, your subscription will automatically renew and you’ll be billed. You can cancel your subscription at any time by contacting Apple Support.

Terms of Service:

Privacy Policy:

California Privacy Notice:

What’s New

Version 24.2.1

Hi there, Robokillers: we update our app regularly to make sure you’re getting the best, most Spam-Call-Free experience.

-This update brings you some minor tweaks and performance improvements.

Thanks for fighting spammers with us!

Ratings and Reviews

4.5 out of 5
397.8K Ratings

397.8K Ratings

Fun10134 ,

Very happy with Robokiller

I’ve been using Robokiller for about a year, or a little over a year, and I’m very impressed by it. Before I got it, I was getting spam calls and texts left and right, and it was really annoying. I found Robokiller in the store and did the free trial. I set up everything the app needed so it could do its purpose. To my amazement, during the free trial, my phone was quiet from spammers, and it was a relief. Sure, there were times it didn’t work, but that’s because my phone kept forgetting that I have Robokiller installed, so I had to go to my phone settings to remind it. I know it works because I’ve had people call me and tell me that it would send them to the voicemail I setup with Robokiller. Without me telling them about it.

Is it pricey? Yeah, sure, but is it worth it? Absolutely. If you own a business that’s a different story, and hopefully you’re using a company phone. This is more for your personal day-to-day phone. I do, however, wish that Robokiller can separate voicemails from known numbers to my phone instead of sending them to Robokiller. If someone I love passes away and leaves a voicemail, once I uninstall the app, that voicemail is gone. So find a way to separate them, known number voicemails to phone and spam voicemails to Robokiller. Other than that Robokiller is great, and I can’t live without it. Until developers somehow manage to jeopardize it, then it’s bye-bye.

CaliRacer ,

This is awesome!

A couple weeks ago I went online to look at different Health insurance plans. My information pre-filled into the information boxes with my phone number. I was under the impression I was on my way to viewing comparisons. Second after this information what was entered, I started receiving solicitation calls from The health Registration Center. These people will drive you nuts. They called me every day, 20 times per today, sometimes minutes apart and sometimes at the same time. The first day I answered 5 or 6 times and asked them not to call me anymore. Each person I talk to said they would update their records. The calls never stopped. They would start just before 8 o’clock in the morning and go on until 8 o’clock at night. I just kept my ringer off and thought I was going to have to change my phone number.

Since downloading this App I have been able to turn my ringer back on. Such a relief! My phone doesn’t even ring anymore when they call. No more voicemails from the robot named Emily or Angie. I get a notification on my screen to open and hear them talking to my answer bot (which has been quite entertaining) and get the option to continue blocking that number. This is the best App ever!

Sigmandis ,

Works fairly well, but calls have increased

The app works pretty well. I purchased RoboKiller after I was constantly getting two calls a day from a fake alarm company. The app instantly managed to block those calls despite the phone numbers always changing. Setting up the app was pretty easy. Although, when reporting spam calls from the recent call list on my iPhone XS I’m not able to scroll through the list of option descriptions to report to RoboKiller the type of spam call (other than the first 4 or 5 choices).

What’s troubling me is the number of spam calls I’m receiving has drastically risen since I’ve installed the application. About a week after installing RoboKiller the number of spam calls I received on average went up to 4 a day and they’re more complex such as IRS spoofing calls, fake collection calls, health insurance calls, and more. I feel like signing up for this service has either added my number to a list that attracts more spam calls, or something the application does when handling these calls has spread my number to more fake calling systems. Either way, it’s now made it impossible for me to not pay for the RoboKiller service since if I stopped paying for it I’d be getting spam calls four or more times a day. The application is also not catching all of these calls with usually one of the four making it through daily. If I get any more fake calls I’ll be back to the two a day I was at before installing RoboKiller.

App Privacy

The developer, TelTech Systems, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Identifiers

Data Linked to You

The following data may be collected and linked to your identity:

  • Location
  • Contact Info
  • Contacts
  • User Content
  • Identifiers
  • Diagnostics

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Purchases
  • User Content
  • Identifiers
  • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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