Undetectable rewrites your text without telling you whether the output actually passes detection. TextSight detects, humanizes, and verifies — all in one tool, all in one scan.
Undetectable.ai built one feature really well: a humanizer that rewrites AI-flagged text into more natural-sounding prose. Their tier pricing is aggressive ($5/mo for 10K words at the entry tier), the rewrites are competent, and they ship reliably.
The product gap is verification. Undetectable doesn't have a detector. When you run text through their humanizer, you get an output — but no signal about whether the output actually passes AI detection. The smart workflow is to paste the output into Originality.ai or GPTZero to verify, then back into Undetectable if it didn't pass, then verify again. Two tools minimum. Sometimes three.
TextSight ships both. The same scan that flags AI-written content offers a one-click humanizer for the flagged sentences, and the same tool re-scans to verify the rewrite actually dropped the score. One tool. One subscription. One workflow that you don't need to leave.
And the math works: TextSight Pro at $14.99/month annual gets you unlimited scans + 50,000 words/month of humanization. Undetectable's 35K-word tier alone is $15.75/month — and that's just the rewriter. Add a detector and you're at $25-30/month minimum. TextSight is cheaper than Undetectable + any detector.
When you run text through Undetectable, you don't know if the output passes detection. You're guessing. The smart workflow involves a separate detector to verify — which means a second subscription and a tab-switch every time.
$5/month for 10,000 words sounds generous until you realize a typical 500-word draft uses 1/20th of your monthly allowance. A serious writer producing 8-12 drafts/month hits the cap by week 2.
Undetectable is built around one feature done well. To use it in a real workflow, you need to integrate it with at least one other tool (a detector). That's two products, two subscriptions, two billing relationships.
Sometimes Undetectable's humanizer doesn't bring the score down enough. You don't know why. You can't see which sentences are still flagged, what patterns are still present. You just know it didn't work — and you have to try again or give up.
You're paying for output volume, not analysis. Detection isn't included at any tier. Useful for high-volume rewriting, but the overall workflow cost is higher because you're stacking subscriptions.
Pricing reflects annual billing rates as of May 2026. Self-reported accuracy from each vendor's pricing pages.
Honest about the friction. There's no data migration between TextSight and Undetectable.ai — switching means starting fresh on a new account.
Both produce competent rewrites. Undetectable's default mode is more aggressive (less voice-preserving) which sometimes results in slightly lower detection scores. TextSight has 3 intensity modes — Light preserves voice strongly, Maximum is roughly equivalent to Undetectable's default aggressiveness. Honest answer: similar quality, different defaults.
Sure — many writers do. They use Undetectable for rewriting and TextSight for verification. But you're paying two subscriptions for what TextSight Pro does at $14.99/month. The only argument for keeping both is if Undetectable's output passes detection at meaningfully higher rates for your specific content type.
Yes — cancel manually via Undetectable's account settings before your next billing cycle. We can't cancel for you. We recommend running both tools side-by-side for a week to verify TextSight handles your workflow before cancelling.
Yes — "Maximum" mode is our most aggressive setting. Less voice-preserving but more detection-resistant. Equivalent to Undetectable's default behavior. Use it when content needs to pass strict checks at the cost of stylistic flatness.
Different product philosophy. They focused entirely on humanization, leaving verification to a separate tool. That's a defensible product decision — but the downside is their users either skip verification (risky) or pay for a second tool (expensive). TextSight bets that bundling both is the better workflow.
Undetectable has API access on all paid tiers, which is more permissive than TextSight's $29.99/mo Business+ tier requirement. For programmatic access at the cheapest entry point, Undetectable is broader. For one-tool detect+humanize+verify in API, TextSight is unified.
No. Undetectable specifically advertises watermark removal/protection (e.g. for OpenAI watermarks). TextSight does not. If watermark protection is a core requirement, Undetectable is the more direct fit.
Detect AI. Fix AI. One tool. 3 free scans/day, no card required.