OpenSpam alternative: how it compares with NoCall

Quick answer

OpenSpam is free, works without an account and publishes reported numbers through an API. NoCall is also free for looking numbers up and identifying calls, with ads, and sells Pro as a one-time payment for full blocking and SMS filters. On privacy, OpenSpam's App Store and Google Play listings declare that it collects no data, while its privacy policy says it logs the IP address in its access logs and an anonymous device identifier in the app.

Practical comparison

Criteria

NoCall

OpenSpam

Who offers it

NoCallNoCall, a service operated by Byteguard Sociedad Limitada.

OpenSpamA project that describes itself as non-profit and "made by users, for users".

Platforms

NoCallWebsite at nocall.io and apps for iOS and Android.

OpenSpamWebsite openspam.es, a developer API and apps for iPhone (iOS 17.6 or later) and Android.

Price

NoCallFree plan with ads. Pro is a one-time payment, not a subscription, and removes ads.

OpenSpamFree apps; its website explains they became free again after a paid period. It accepts donations and its website shows sponsored slots.

Blocking

NoCallPro includes full spam call blocking, range blocking and international numbers.

OpenSpamLight, Balanced or Aggressive levels, an allow list and a local database that works offline. It does not block contacts or numbers you recently interacted with.

Open data

NoCallReports and comments can appear publicly on number pages.

OpenSpamIts public API publishes reported numbers, how many reports they have and the spam types, without data about who reported them.

Declared data

NoCallIts policy lists the data it handles: in the app, a random device identifier, searches and reports; on the website, IP address and technical data. The free app requests non-personalised ads.

OpenSpamApp Store: "Data Not Collected". Google Play: no data collected or shared. Its privacy policy: access logs with IP address, browser and operating system, searches and, in the app, an anonymous device identifier, the device model and the OS version.

When to choose NoCall

You want full blocking, range blocking and SMS filters with a single purchase.
You want number pages with categories, comments and context on the web.
You want a privacy policy that names every outside provider involved.

When OpenSpam may fit

You want a free app with no account and no purchases.
You need to check numbers from your own project with a public API.
You prefer to pick the blocking level: Light, Balanced or Aggressive.

Honest limitations

App Store and Google Play privacy labels are filled in by the developer and are not verified by the stores. For OpenSpam they do not match its privacy policy, so read both.
Price and features can change: OpenSpam has already gone from free to paid and back to free.
No community database is complete: a number with no reports is not necessarily safe.

FAQ

Does OpenSpam collect data?

Its App Store and Google Play listings declare that it collects no data. Its privacy policy, updated on 17 October 2026, says it keeps access logs with IP address, browser type and operating system, and that the app collects an anonymous device identifier, the device type and model and the OS version. Both sources are linked below.

Is OpenSpam free?

Yes. Its iOS and Android apps are free, searching on its website is free and needs no account, and public access to its API has usage limits.

What does NoCall offer compared with OpenSpam?

NoCall lets you look numbers up on the web with reports, categories and comments. Its Pro plan, a one-time payment, adds full spam call blocking, range blocking, SMS filters and AI-assisted message analysis, and removes ads.

Sources reviewed

We reviewed public official sources and product pages. Features can change, so validate sensitive details before deciding.