Products

RoboKiller

Uses AIEstablished Leader

Block 99% of spam calls & texts

robokiller.com App Store Google PlayUtilities / Phone Numbers & Telecom

AI Benchmark
Desktop
Mobile
Monthly visits
1.8M
Down3.7%MoMOct 2026
Public revenue
Undisclosed
No public revenue evidence yet
Entry price
Free
No monthly subscription pricing
Creators
Giulia Palombo
No social account linked
Launched
11y ago
2015-09-08 · Est.

Traffic

Monthly visitsData through Oct 2026
Events19 changes

Marketing moves

Launches, search & content, referrals, promotions
  • RoboKiller launched on Product HuntLaunch

    The app that stops spam calls forever

    Dec 19, 2019 · 6y agoSource

  • Launched on Google PlayLaunch

    Block 99% of spam calls and scam texts. Use Robokiller as the default SMS app.

    Jun 20, 2018 · 8y agoLaunch page

  • Launched on App StoreLaunch

    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 pho

    Sep 8, 2015 · 11y agoLaunch page

Store data

App Store · Google Play
Robokiller: Spam Call Blocker
Mosaic S.r.l.UtilitiesProductivity· 3 languages
Updated 6mo ago
Rating
★ 4.50413.9K ratings
New ratings last mo
—
Price & IAP
FreeIAP data not synced
First released
2015-09-08194 MB
Rating Distribution (1★–5★)5★ 77% · 1★ 6%
5
77%
4
11%
3
4%
2
2%
1
6%
Store Screenshots (0)
Latest Release Notes (v24.7.55)

Hello users! "With great power comes great responsibility" - and the power to block spam calls is definitely a great one! We've improved the app with bug fixes to make sure it keeps working perfectly for you. If you're enjoying a quieter phone, let us know with a review! Keep blocking that spam!

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. OTHER SPAM-ELIMINATING ROBOKILLER FEATURES: PREDICTIVE CALL-BLOCKING POWER With Advanced Call Blocking, Robokiller analyzes all unrecognized calls using AI-powered audio fingerprinting technology. 24/7 UP-TO-DATE PROTECTION New spammers are continuously added to our global spam radar every MINUTE so your phone never rings from unwanted calls. KEEP YOUR PERSONAL INFO PRIVATE 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. GET REVENGE ON ROBOCALLERS 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. SPAM TEXT BLOCKING 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. HERE’S WHAT LIFE IS LIKE WITH ROBOKILLER: • 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. 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: http://www.robokiller.com/terms.html Privacy Policy: http://www.robokiller.com/privacy.html California Privacy Notice: https://robokiller.com/privacy.html#section-8

Robokiller - Spam Call Blocker
Robokiller - Spam Call Blocker Google Playv24.7.7Everyone

Block 99% of spam calls and scam texts. Use Robokiller as the default SMS app.

Mosaic SrlCommunication
Updated 6mo ago
Rating
★ 3.86125.4K ratings
Install scale
5,000,000+Min 5M installs
Price & IAP
FreeIAP $0.99 - $129.99 per item
First released
2018-06-20Store metadata
Rating Distribution (1★–5★)5★ 59% · 1★ 20%
5
59%
4
12%
3
5%
2
4%
1
20%
Store Screenshots (8)
Latest Release Notes (v24.7.7)

Bug fixes and performance improvements.

Block spam calls with Robokiller, the spam call blocker that eliminates 99% of unwanted phone calls. No robocall stands a chance against Robokiller’s algorithm, which protects you against over 1 billion scams in our global database. Use Robokiller as the default SMS app. Robokiller blocks 99% of spam text messages so you only receive the ones you desire. Block telemarketers’ spam with Robokiller. Any phone call with an unknown caller ID will be marked as spam - with the help of our number-blocking, audio fingerprinting technology. You can add unwanted callers to your blocklist, customizing your level of spam blocking. Block spammers on your own terms - get good calls only® and never miss an important call with our powerful spam blocker app. Robokiller provides peace of mind, blocking annoying scam calls and preventing costly losses to fraud. The average scam costs $1,464*, but with our spam blocker you won’t be the next victim. Robokiller lets you get robocall revenge:registered: on unwanted callers with answer bots, that intercept calls and play hilarious pre-recorded audio. MESSAGING: - Use Robokiller as your primary text messaging app to seamlessly send and receive messages. - Automatically block spam, scam, and telemarketing texts using our secure technology. - Customize who can and can’t reach you with block & safe filters. BLOCK SPAM CALLS: - Reduce unwanted calls by 99% in your first 30 days of using our spam filter. - Our blocklist updates automatically to ensure the most up-to-date protection. - Block robocalls and phone calls you don’t want, keep the number blocked for as long as you wish. CONTROL WHO CAN & CAN’T REACH YOU: - Keep your contacts or any new number safe in your allow list. - View the number you’ve missed in your calls list. - Pause call blocking - temporarily disable our spam blocking function if you’re expecting an important call from an unknown number, then continue to block calls when you’re ready. KEEP YOUR PERSONAL INFO PRIVATE: - New personal data protection feature helps you reclaim your privacy. - Scan 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. SCREEN PHONE CALLS IN REAL TIME: - Screen callers by asking them to identify themselves before your phone rings with our automatic answering service. - Get transcriptions of the caller’s response in real-time: We deliver the call screening report as your device is ringing. FIGHT SPAM WITH ANSWER BOTS: - Send spammers to lengthy recordings provided by Robokiller. - Choose from a variety of Answer Bots that will give spammers a taste of their own medicine, blocking them in style. - Enjoy listening to blocked & recorded calls. REPORT SPAMMERS: - Join the fight against robocalls by reporting any specific number or unknown caller. - Check the scam activity in your state: Be aware of the top scams in your area. - Contact our dedicated customer service team 24/7 regarding any issues with our spam call blocker app. Robokiller is an award-winning spam blocker built by people who hate robocalls and respect privacy. Our mission is to stop robocalls forever. This app has been featured by The New York Times, NBC, Wired, Engadget, Vice, and other publications. Robokiller is free to download. A subscription is required to use the service, but you can try it free for 7 days. Once your trial ends, your subscription will automatically renew. You can cancel your subscription at any time. Answer your phone without fear thanks to Robokiller, the spam call blocker app made to give you peace of mind. Terms of Service: https://www.robokiller.com/terms.html Privacy Policy: https://www.robokiller.com/privacy.html California Privacy Notice: https://robokiller.com/privacy.html#section-8 *According to FTC estimates

Store assets, rating histograms, install tiers, and screenshots are synced from Apple App Store, Google Play, and Chrome Web Store.

Traffic sources

Oct 2026

Traffic breakdown

Channels

  • Organic Search78%
  • Direct19%
  • Other2%

Countries

  • United States95%
  • Canada1%

Search

Domain authority —Domain registered 2012-11-15

KeywordMonthly volume
phone number lookup164.8K
robokiller10K
87751414483,970
robokiller lookup1,020
robo killer1,000

Traffic data: Vaneform

Pricing

Public pricing: FreeRaw source text; structured plans are extracted after website capture.

Pages & changes

Tracked since 2019-12-19

Key pages

Weekly snapshots
robokiller.com/ Snapshot 2026-11-04

Changes

  1. Nov 1 · 14d ago

    Removed technology: Chart.jsFeatures

    Chart.js→—

    At the time: 1.8M visits/mo18 concurrent moves
  2. Nov 1 · 14d ago

    Adopted technology: Google CloudFeatures

    —→Google Cloud

    At the time: 1.8M visits/mo18 concurrent moves
  3. Nov 1 · 14d ago

    Adopted technology: Google Cloud CDNFeatures

    —→Google Cloud CDN

    At the time: 1.8M visits/mo18 concurrent moves
  4. Nov 1 · 14d ago

    Adopted technology: Google Cloud StorageFeatures

    —→Google Cloud Storage

    At the time: 1.8M visits/mo18 concurrent moves
  5. Nov 1 · 14d ago

    Removed technology: LiveIntentFeatures

    LiveIntent→—

    At the time: 1.8M visits/mo18 concurrent moves
  6. Nov 1 · 14d ago

    Removed technology: NativoFeatures

    Nativo→—

    At the time: 1.8M visits/mo18 concurrent moves

Design

First-screen visual analysis & :root CSS

Soft & Friendly (Light canvas, balanced density) featuring split copy & visual layout and product ui screenshot / component visuals.

First-screen preview · click to zoom

First-screen pitch & conversion flow

“Block 99% of spam calls & texts”

Split Copy & Visual hero structure paired with start free / sign up CTA and stacked avatars & testimonials.

Conversion path: Split Copy & Visual + Product UI Screenshot / Component → Start Free / Sign Up · Trust bar: Stacked Avatars & Testimonials

Palette · click to copy

5-D design score7.9 / 10
Typography
8.0
Color & Contrast
8.0
Layout & Spacing
8.0
Craft & Polish
8.0
Distinctiveness
7.0

Structure

Fonts
Proxima Nova
Primary visual
Product UI Screenshot / Component
Conversion CTA
Start Free / Sign Up
Social proof
Stacked Avatars & Testimonials
Navigation
Full-Width Top Bar
Theme & density
Light · Balanced
Corners & depth
Pill · Hairline borders
Preview full AI design brief (includes :root CSS variables & layout rules)Style tokens only; never copy brand names, logos, copy, or images
# Design Brief: Soft & Friendly (with Gradient Glow)

Warm low-saturation pastels, generous rounded corners, and approachable illustrations.

## Design Tokens

```css
:root {
  --background: #aff5dd;
  --surface: #ffffff;
  --foreground: #03052f;
  --muted-foreground: #55566b;
  --accent: #70f5d8;
  --radius: 9999px;
  --font-heading: "Proxima Nova", ui-sans-serif, system-ui, sans-serif;
  --font-body: "Proxima Nova", ui-sans-serif, system-ui, sans-serif;
}
```

Color area ratio: Background #AFF5DD (~67%) · Surface #FFFFFF (~14%) · Text #03052F (~12%) · Muted Text #55566B (~3%) · Accent #70F5D8 (~4%). Background and surface dominate the canvas; reserve the accent color for primary buttons and active states.

## Layout & Conversion Structure

- Hero layout: Split Copy & Visual
- Navigation: Full-Width Top Bar
- Theme & density: Light · Balanced
- Border radius & elevation: Pill; no drop shadows—separate layers with hairline borders and whitespace
- Primary visual medium: Product UI Screenshot / Component
- Conversion CTA: Start Free / Sign Up · Trust bar uses Stacked Avatars & Testimonials
- Headline hook: Outcome & Speed Promise
- Hero components: Large Hero Product Shot, Metrics Strip, Customer Logo Wall
- Spatial layout notes: Split Copy & Visual hero structure paired with start free / sign up CTA and stacked avatars & testimonials.
- Visual summary: Soft & Friendly (Light canvas, balanced density) featuring split copy & visual layout and product ui screenshot / component visuals.

## Avoid

- Harsh pure-black backgrounds
- Sharp 0px corners
- Cold technical jargon in hero copy

Implement the UI following the design tokens and layout specifications above: use only these color variables, and reserve the accent color strictly for primary actions and active states. Adopt only this visual style—never copy any reference product’s brand name, logo, copy, or imagery.

Questions & evidence

How much website traffic does RoboKiller get?
Vaneform estimates 1.8M website visits in 2026-10. Visits can include repeat visits; this estimate measures web traffic separately from paying customers or revenue.Source
What is RoboKiller and what platforms does it support?
RoboKiller is catalogued under Phone Numbers & Telecom: Block 99% of spam calls & texts. Supported platforms: Mobile App.

Related products in this category

Utilities / Phone Numbers & Telecom

These products share a catalog category. Compare customer tasks, features and deployment requirements before treating them as alternatives.