Composer AI vs InReply
Composer AI
getcomposer.ai
InReply
inreply.aiSide by side
| Figure | Composer AI | InReply |
|---|---|---|
| Price from | Free | £39/mo |
| Free plan | Yes | — |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Plans published | 1 | 4 |
| Spec score · AI Email Writing Tools | 8.0 (#12) | 8.0 (#13) |
| AI processing | Email thread content and prompts are sent to OpenAI for processing; the policy says OpenAI retains them for up to 30 days and does not use them for model training. | The pricing page says AI processing runs through OpenAI's API and that inputs are not used to train models under OpenAI's API terms. |
| Headquarters | Poland | London, United Kingdom |
| Security | The privacy policy lists HTTPS/TLS encryption in transit, Better Auth, access controls, and regular security assessments and updates. | The site states that InReply is GDPR compliant, has UK data residency, is Google verified, and is SSL encrypted. |
| Support | Users can contact the operator at [email protected], including to request a manual increase to the draft limit. | Support varies by plan from email support to priority support, a success manager, or 24/7 phone support. |
Plans
InReply
- Starter£39 a month
- Growth£79 a month
- Scale£149 a month
- BusinessPriced on request
In their own words
Composer AI
Composer AI is an email drafting tool for Gmail that uses an email thread and the user’s tone to prepare replies. Users connect Gmail, open a message, review and edit the generated draft, then send it. The homepage states that replies are produced in under three seconds. Composer AI is available on the web and as a browser extension, using Google APIs to read Gmail threads during composition. Its Free Beta Tier costs nothing and includes 20 draft compositions per account; users may request a manual limit increase. The privacy policy says thread content and prompts are sent to OpenAI, retained for up to 30 days, and not used for model training. Full conversation and email content is logged to LangSmith for debugging and service improvement, with deletion after 14 days. The service is experimental beta software without service-level agreements or uptime guarantees and advises against highly sensitive communications.