Side by side
ContentBrief.io vs Frase
Both stand on content optimization software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan APIWeb
Visit ContentBrief.io 
Free plan APIExtensionWeb
Frase combines content research, optimization, publishing, and monitoring, including visibility across AI search services. Starter costs $39 a month billed yearly, with monthly article and audit limits.
Visit FraseThe facts
| ContentBrief.io | Frase | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | API, Web | API, Extension, Web |
| Lowest paid plan | Freelancer Pack: $29 a month | FraseCMS Basic: $19 a month |
| Plans published | 5 | 7 |
| Maker | Not published | Not published |
| Website | contentbrief.io | frase.io |
| On content optimization software | #2 of 68 | #1 of 68 |
ContentBrief.io: what it does well
Frase: what it does well
- Researches topics and drafts in a brand voice.
- Monitors AI citations across five listed services.
- Publishes to WordPress, Webflow, Sanity, and Wix.
- Writes in more than 70 languages and locale variants.
- REST API is available on every plan.
What to know first
- Starter includes 10 articles per month.
- Starter includes 50 audit pages per month.
- The trial is capped at five articles.
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