Side by side
Callblock vs Firewall
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.
Free trial iPhone
Callblock combines a large telemarketer directory with call and message screening on compatible iPhones. Its caller-ID requirement and subscription model are the main constraints to consider.
Visit Callblock Free trial iPhone
Firewall combines whitelist call control, spam identification, voicemail transcription, and SMS filtering in one iOS service. Consider the phone-number forwarding setup and the lack of Android support before subscribing.
Visit FirewallThe facts
| Callblock | Firewall | |
|---|---|---|
| Free plan | A free trial | A free trial |
| Open source | Not published | Not published |
| Runs on | iPhone | iPhone |
| Lowest paid plan | Yearly subscription: $19.99 a year | Firewall: $3.99 a month |
| Plans published | 2 | 1 |
| Maker | Not published | Not published |
| Website | callblockapp.com | tryfirewall.com |
| On spam call blocking apps | #26 of 41 | #30 of 41 |
Callblock: what it does well
- Directory covers more than 3,000,000 telemarketers
- Works in 174 countries
- Supports caller filtering and caller ID-only mode
- Does not require Contacts access
- Includes a free month before subscription billing
What to know first
- Available only on iOS
- Cannot block calls without caller ID
- No free plan is listed
- Subscription billing follows the free month
Firewall: what it does well
- Whitelist controls which callers ring
- Screens unknown callers to voicemail
- Transcribes screened voicemails
- Blocks SMS spam from scammers and marketers
- 14-day trial includes full blocking features
What to know first
- No free plan
- Robocall blocking currently supports iOS only
- Setup forwards your phone number
- Calls use data-plan allowance
Alternatives to Callblock Alternatives to Firewall The whole list