Robokiller: Spam Call Blocker: iPhone vs Android
Robokiller: Spam Call Blocker gets 500+ downloads a day worldwide (AppInsider estimate, September 2026, rounded down to a band).
Robokiller: Spam Call Blocker by Mosaic S.r.l. is on both the App Store and Google Play. Here are both versions together: downloads, users, revenue, ratings and chart positions, store by store with totals.
Rating
4.3 ★
540k ratings, both stores
Measured
Best rank now
#7
iPhone · 
Utilities Grossing
Utilities GrossingMeasured
App Store
App details
App ID
1022831885
Publisher
Mosaic S.r.l.
Content rating
4+
Google Play
App details
App ID
com.robokiller.app
Publisher
Mosaic Srl
Content rating
Everyone
Tech stack
Trackers and permissions of build v24.7.7, from the εxodus privacy report (CC BY-SA).
Trackers
3
Permissions
43
Trackers
Google CrashLyticsGoogle Firebase AnalyticsGoogle Tag Manager
Full permission listProSee plans
Robokiller: Spam Call Blocker downloads & installs
Both stores, worldwide. Bands are open; exact numbers are free with an account.
| Store | Downloads / day | Lifetime installs |
|---|---|---|
| iPhone | 100+ | – |
| Google Play | 500+ | 5M+ Measured |
| Total | 500+ Confidence | 5M+ Confidence |
How this is calculated
iPhone: chart positions and rating growth per country, anchored on its own Android downloads; lifetime from ratings worldwide × installs per rating. Google Play: the daily change in its exact install count. The total adds every store.
Where Robokiller: Spam Call Blocker's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
In-app revenue
Worldwide, what users spend before Apple and Google take their fee.
| Store | Per day | Per month | Share |
|---|---|---|---|
| App Store | |||
| Google Play | |||
| Total | Confidence | 100% |
Business model: In-app purchase-led
How Robokiller: Spam Call Blocker makes money: subscriptions, one-off purchases and ads.
In-app purchases
One-off purchases
/mo
of revenue
Top in-app purchases · App Store US, most popular first
| 1 | Membership (Inactive) subscription | |
| 2 | Membership subscription | |
| 3 | Membership subscription | |
| 4 | Membership subscription | |
| 5 | RoboKiller Membership subscription | |
| 6 | Membership (Inactive) subscription | |
| 7 | Membership(Inactive) subscription | |
| 8 | Membership (Inactive) subscription | |
| 9 | Membership(Inactive) subscription | |
| 10 | Monthly (Inactive) subscription |
Where it ranks now
Both stores, across every country we track.
Ratings
Both stores. Store data, measured.
| Store | Rating | Ratings |
|---|---|---|
| App Store | 4.5 ★ | 414k |
| Google Play | 3.8 ★ | 126k 52k written reviews |
| Both stores | 4.3 ★ weighted by ratings | 540k |
What users say about Robokiller: Spam Call Blocker
From the 50 most recent App Store reviews in the US.
Mostly negative (12% of recent reviews give 4–5 stars). People like it for privacy. The main complaints are about price and subscriptions, and privacy and spam.
What people like
- Privacy & data: “My daily spam/scams went from average 15 a day to zero!”
Common complaints
- Price & subscription: “Look closely at the price”
- Privacy & data: “Isn’t really blocking spam”
- Crashes & bugs: “Would not get through setup had multiple errors”
- Customer support: “Customer support is worthless”
About Robokiller: Spam Call Blocker
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 subscriptio
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 subscriptio