AI Undetectable vs Penguin ePulse
Both are in AI content tools. Here is how their plans, prices and features compare, taken from each vendor's own site.
| AI Undetectable | Penguin ePulse | |
|---|---|---|
| Starting price | from $5/mo | Not verified yet |
| Free plan | Not stated by the vendor | Not stated by the vendor |
| Free trial | Yes | Not stated by the vendor |
| Plans | 10K words ($9.99/mo, $5/mo annual, $60/yr); 20K words ($19/mo, $9.50/mo annual, $114/yr); 35K words ($31/mo, $15.75/mo annual, $189/yr) | Demo only (No public pricing; book a demo) |
| Fees and pricing notes | None stated | No public pricing; book a demo |
| Best for | Creators | Agencies |
| Key features | AI text detector that estimates how machine-written a passage looks; Two rewrite modes: Basic and a deeper Stealth rebuild; Image detector for uploaded images or image links; Five writing modes: general, essays, articles, marketing copy and stories | Content planning with drafts, media and a calendar; Social inbox for conversations on connected accounts, including reputation management; Analytics and reporting by account and period; Market listening with source-linked findings: you set the question, sources and dates first |
| Checked on | 2026-10-08 | 2026-10-11 |
Prices change; confirm on the vendor's site before you buy. Full details and sources are on each tool's page.
AI Undetectable
- 3-day free trial on every plan
- Yearly billing is about 50% cheaper
- Detector and rewriter in one workspace
Trade-offs
- No free plan, and the selected plan is billed after the trial unless cancelled
- Monthly word allowances do not roll over
- Detector scores are estimates, not proof of how a text was written
Penguin ePulse
- Interactive example workspace with illustrative data
- 24 industry workflows and guides on the public site
- Planning, conversations, analytics and research in one workspace
Trade-offs
- No plans or prices are published, only a demo request
- The page does not list which social networks are supported
- No free trial is mentioned