AI humanizer
Undetectable AI alternatives
By Sourabh SinghUpdated 30 September 2026
The strongest Undetectable AI alternatives are Phrasly for unlimited volume, WriteHuman for privacy, QuillBot for a free option, and TextAsMe if you want the reason behind each flag rather than only a score.
162,582
US organic visits / mo
13,176
Ranking keywords
$5 to 21.25/mo billed annually ($9.99 to 42.50 monthly)
Pricing
Undetectable AI and its alternatives, compared
Traffic figures are estimated US organic visits per month, measured September 2026. They are a proxy for how many people actually use a tool, the one number in this market nobody can fake in a listicle.
| Tool | Price | US visits/mo | Ranking keywords |
|---|---|---|---|
| TextAsMe | Free, unlimited | New | Explains every flag |
| Undetectable AI | $5 to 21.25/mo billed annually ($9.99 to 42.50 monthly) | 162,582 | 13,176 |
| Phrasly | $10.99/mo annually, $19.99 monthly, $2 three-day trial | 107,268 | 2,824 |
| WriteHuman | $12 to 39/mo billed annually ($20 to 59 monthly) | 79,451 | 1,934 |
| QuillBot | Free humanizer; Premium around $8 to 12/mo annually | 18,557,078 | 191,210 |
| Walter Writes AI | Free tier; $8/mo annually, $28 unlimited | 56,812 | 1,689 |
What Undetectable AI does well
The best-known brand in the category, with more than 24 million users, a Wikipedia entry and the most mentions of any humanizer in Google's AI answers, plus a humanization dial that genuinely helps you pick a register.
Where it falls short
It ranks around position 43 for "ai humanizer", 34 to 45 for "humanize ai" and 69 to 77 for "ai detector", its own core terms. Its per-detector scores are projections, not live readings, and word quotas start at just 10,000 a month.
The verdict
You are paying for brand recognition and a word allowance, not a measurable quality lead. The permanent 50% discount on its list price tells you what the market will actually bear.
Where TextAsMe differs
Every tool above returns a score or a rewrite and stops. TextAsMe marks each sentence, names the signal that fired on it, metronome rhythm, low perplexity, dead metaphor, stock transition, no concrete detail, and rewrites toward a measurement of your own writing rather than a generic human average. The writing analysis and your Style DNA run in your browser, and the text you check for a real AI score is never stored.
Full review: Undetectable AI Review: Big Brand, Broken Search Channel
The strongest Undetectable AI alternatives are Phrasly for unlimited volume, WriteHuman for privacy, QuillBot for a free option, and TextAsMe if you want the reason behind each flag rather than only a score.
TextAsMe scans for free with no account and no word cap, showing every flagged sentence and why. The studio and humanizer are paid, $9 a month (Starter), $18.50 (Pro) or $50 (Elite), half price billed yearly. QuillBot also has a free tier.
$5 to 21.25/mo billed annually ($9.99 to 42.50 monthly). Prices were read from vendor pricing pages in September 2026 and change often, check before you subscribe.
It ranks around position 43 for "ai humanizer", 34 to 45 for "humanize ai" and 69 to 77 for "ai detector", its own core terms. Its per-detector scores are projections, not live readings, and word quotas start at just 10,000 a month.
