Compare · Phrasly
Phrasly alternative for buyers who want the caps and the proof on screen
People hunting for Phrasly alternatives usually have one of two reasons. Either an unlimited plan is more ceiling than their volume justifies, or they want to see what the rewrite actually changed rather than take a pass message on trust.
Phrasly sells a single subscription: Unlimited, at $10.99 a month billed annually, which is $131.88 charged once, or $19.99 month to month. The monthly word allowance genuinely is unmetered, and each submission is capped at 5,000 words. That per-process window is the most generous at this price and it is the real reason to buy Phrasly. Undetected.ai covers the same core job with metered plans, a published daily run cap, and our own AI-pattern gauge that shows which sentences moved and why.
Meaning kept · Your own text rewritten · Saved to your history, delete any time
The short answer
Undetected.ai is a good Phrasly alternative if you write moderate volume and want to see what the rewrite changed. Phrasly sells one unlimited plan at $10.99 a month billed annually, read on its pricing page on August 29, 2026, which is excellent value at high volume and cheaper than any of our plans. Undetected.ai meters instead, publishes the cap on the plan, and shows our own AI-pattern score before and after with the reasons behind it. If unmetered volume and a 5,000-word submission window matter more, Phrasly has the edge there and we would say so.
Both tools are capable; the differences below are what actually decide it.
Phrasly is an established humanizer with a big user base; Undetected.ai adds published flat pricing and our own AI-pattern score before and after, with its reasons.
Prices we read ourselves
What Phrasly costs, and what we cost
Read off each vendor's own pricing page on the date shown, not copied from a roundup. Where the yearly rate is cheaper we lead with it, because that is the number buyers compare.
| Undetected.ai | Phrasly | |
|---|---|---|
| Cheapest paid plan | $24/mo billed yearly ($49 monthly) | $10.99/mo billed annually ($131.88 a year), or $19.99/mo month to month |
| What that carries | 100,000 words/mo across 300 runs, 1,500 words a run | Unlimited humanizer words on its single Unlimited plan, capped at 5,000 words per process, plus 20,000 plagiarism-check words and up to 30,000 content generator words a month |
| Try it before paying | Trial: 3 runs of up to 300 words, once. No free plan. | A $2.00 three-day pass capped at 800 words per process, which converts to a subscription when it ends |
| Where they win | One pass over your own text, with our AI-pattern score and its reasons | The 5,000-word per-process cap is six to ten times the room Humbot, WriteHuman or Walter Writes give at entry level, and the monthly allowance really is unmetered. Phrasly also runs its own models in the US rather than wrapping a third-party API, which is the strongest privacy claim in this comparison |
Phrasly pricing read August 29, 2026. All figures in USD. Promotional rates move constantly, so confirm on the vendor's own page before you buy. We build one of these tools.
Not sure any of them do what they claim? We published the ten-minute test for whether an AI humanizer actually works, which costs nothing and settles it on your own writing.
Side by side
Undetected.ai vs Phrasly, honestly
A fair look at what each does well. Both are capable tools. Here is where they differ.
| What matters | Undetected.ai | Phrasly |
|---|---|---|
| Price | Flat plans published on the pricing page: Starter is $24 per month billed yearly for 100,000 words, Pro is $49 for 300,000 and Scale is $99 for 1,000,000. | $10.99/mo billed annually, or $19.99 month to month, for one Unlimited plan |
| Our AI-pattern score | Animated red-to-green score shown in the tool | Returns humanized text with a result |
| The reasons behind the score | Lists what earned the number: which template phrases were found, how little the sentence lengths varied | Markets broad detector coverage |
| Meaning preserved | Keeps facts and argument while reworking rhythm | Aims for natural humanized output |
| What you see after the rewrite | Our own AI-pattern score before and after, with its reasons | Targets the major detectors |
| Words per submission | Published on the plan | 5,000 words per process, 800 during the $2 three-day pass |
| Best suited for | Buyers who want a published allowance and want to see what changed | High-volume writers working on long documents |
Comparison reflects general, publicly understood positioning. Capabilities change, so check each product for the latest.
Why writers pick Undetected.ai
The humanizer that shows its work
A published allowance
Undetected.ai meters instead of selling an unlimited plan, and prints both numbers on each plan: words a month and runs a month. Phrasly is cheaper to start; what we offer is a known allowance and a score that shows its working.
Proof you can watch
Our own AI-pattern score, measured before and after with the reasons behind it, turns the claim into something you can read on screen.
Readable output, kept meaning
The rewrite keeps your facts and argument and returns natural prose, so the humanized text is ready to use without a cleanup pass.
Good questions
Phrasly vs Undetected.ai, answered
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Further reading: Phrasly AI review: pricing, word limits and the watermark claim · Phrasly cancel subscription and refund rules, with the 30-minute cutoff · Best AI humanizer for Turnitin, 6 tools compared · How much does an AI humanizer cost?
Try Undetected.ai on your own text
Paste your own text and read the rewrite next to the original, with our AI-pattern score measured on both before you copy.
Meaning kept · Your own text rewritten · Saved to your history, delete any time