Side by side

CallWall vs SpamBlocker

Both stand on spam call blocking apps. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

CallWall

Free plan iPhone

Choose CallWall if you want free spam call blocking and text filtering on an iOS device running iOS 17 or later. Its free plan includes unlimited blocking and reporting, with three number lookups each week. Look elsewhere if you need a platform other than iOS or more weekly lookups.

Visit CallWall

SpamBlocker

Free plan Android

SpamBlocker offers call and SMS filtering with several configurable rules and database options. Check its Android requirement, SMS notification behavior, and online-feature privacy details before choosing it.

Visit SpamBlocker

The facts

	CallWall	SpamBlocker
Free plan	Yes	Yes
Open source	Not published	Not published
Runs on	iPhone	Android
Lowest paid plan	Free or on request	Free or on request
Plans published	1	1
Maker	Not published	Not published
Website	getcallwall.com	github.com
On spam call blocking apps	#11 of 41	#21 of 41

CallWall: what it does well

Unlimited call and text blocking on the free plan.
Spam texts go to the iOS junk SMS folder.
Blocking and filtering run on the device.
Calls can be blocked offline after database sync.
Community reports can include a category and optional description.

What to know first

Requires iOS 17 or later.
Number lookups are limited to three per week.
The listed platform is iOS.

SpamBlocker: what it does well

Filters calls without replacing the default call app.
Includes contact, time, and meeting-mode call rules.
Uses a local AI filter for SMS.
Supports downloadable and online spam databases.
Available free under the MIT License.

What to know first

Requires Android 10 or newer.
SMS log excludes sent messages.
No RCS support or automatic SMS clearing is planned.
Online features expose specified connection details to the API server.

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