Writesonic is an SEO-oriented content platform with AI article creation and AI search visibility tracking. The alternatives below mix the catalogue's writing tools with its marketing-content platforms.
| Alternative | What it is best at | Free plan | Paid entry | Links |
|---|---|---|---|---|
| Grammarly | Strong fit for ongoing writing correction with a monthly AI-generation prompt allowance. | Yes | Pro: $12 USD (shown per month; billing period label not confirmed) (checked 2026-10-27) | Full record · Writesonic vs Grammarly |
| QuillBot | Strong fit for paraphrasing, summarizing and grammar checks with a small daily free allowance. | Yes | Premium: $19.95 USD per month (billed monthly) (checked 2026-10-27) | Full record · Writesonic vs QuillBot |
| Jasper | Strong fit for marketing teams producing on-brand copy and campaigns with AI agents. | No | No public price listed (checked 2026-10-27) | Full record |
| Frase | Aimed at content teams building search briefs and optimizing articles with AI. | No | No public price listed (checked 2026-10-27) | Full record |
AI writing partner for grammar, clarity, tone and rewrites.
Strong fit for ongoing writing correction with a monthly AI-generation prompt allowance.
AI paraphrasing and writing tools.
Strong fit for paraphrasing, summarizing and grammar checks with a small daily free allowance.
AI writing and agents for marketing teams, with brand voice and campaign tooling.
Strong fit for marketing teams producing on-brand copy and campaigns with AI agents.
AI content research, briefs and optimization for search.
Aimed at content teams building search briefs and optimizing articles with AI.
How this list was built: alternatives are tools from the same area of the Ai Siftly catalogue, ordered by website-domain popularity (Tranco research list, 2026-10-26; method), then tools without a rank. Prices and details come from each vendor's own pages with the date checked shown. This is not a ranking or a recommendation.
For general writing, yes: Grammarly and QuillBot each list a free plan (checked dates shown above). The SEO-focused alternatives, Jasper and Frase, are paid-only.
Grammarly Pro at $12 USD shown per month (checked 2026-10-27) and QuillBot Premium at $19.95/month billed monthly (checked 2026-10-27). Jasper and Frase have no public price in the catalogue's records.
Frase is the closest, with content research and search optimization. Grammarly and QuillBot do not cover SEO.
Every price shows the date it was checked on the vendor's own page. Confirm with the vendor before buying.