EssayFlow vs Undetectable AI

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors.

The short answer

Cheaper paid plan: Undetectable AI — $9.99/mo vs $27.98/mo for EssayFlow
Free plan: Both have one
Public API: Undetectable AI has one; not confirmed by us for EssayFlow
Higher Trust score: Undetectable AI — 89 vs 78 for EssayFlow
Best fit: EssayFlow: Drafting and outlining long-form academic writing · Undetectable AI: Marketers cleaning up bulk LLM drafts before publishing

From our own records as of each tool's last check. Anything we have not confirmed is left out rather than guessed. How we verify

EssayFlowEssay generator that writes assignments and scores them against the AI detectors it claims to slip past

Undetectable AIRewrites machine-written drafts to read human, with detection scoring built in

Side by side

Fact	EssayFlow	Undetectable AI
Category	Essay & Assignment Help	AI Detection & Humanizers
Pricing model	Freemium	Freemium
Starts at	$27.98/mo	$9.99/mo
Public API	Not confirmed	Yes
Trust score	78 / 100	89 / 100
Platforms	Web	Web, API, Chrome extension
Company	EssayFlow.ai	Undetectable Inc.
Launched	—	2023
Last verified	Oct 16, 2026	Oct 15, 2026

What our research says

EssayFlow

EssayFlow is an essay generator sold on one promise — that the output will not trip Turnitin or GPTZero — and it prices that promise steeply. The detectability score next to each draft is at least honest about what it is for. Two things undercut it: the undetectable-word cap of 5,000 a month never moves regardless of tier, so the expensive plans buy volume of ordinary output, and no operating company or country is disclosed.

Pros

Reports a detectability score alongside every generated essay
Support for over 50 languages
Free plan lets you judge output quality before paying
Annual billing cuts the entry price from $27.98 to $17.98 a month

Cons

The 5,000 undetectable-word allowance is identical on every tier, including Unlimited
Entry price is high for what is fundamentally text generation
No company name, country or corporate identity published
Detector evasion is a moving target with no guarantee attached

Undetectable AI

Buy it only if you accept that passing a detector is a moving target: detector vendors retrain constantly, and text that cleared last month can flag next month. As a multi-format detection dashboard it is more defensible than as a bypass tool.

Pros

Detector and rewriter run in one pass, so you see which sentences changed and why
Coverage extends past text into image, voice, video and document classifiers
Browser extension works inside Docs and Gmail rather than a separate tab
Entry tier is genuinely cheap at annual rates

Cons

Rewrites often flatten voice and add filler to break statistical patterns
Detection on short passages is unreliable in both directions
Word quotas drain fast because rejected attempts still consume them
The free trial caps at 250 words, barely enough to judge output quality

Which one fits

Choose EssayFlow if you need

Drafting and outlining long-form academic writing
Non-native speakers producing coursework in one of the 50+ supported languages
Rewriting existing drafts into a different register

Choose Undetectable AI if you need

Marketers cleaning up bulk LLM drafts before publishing
Editors wanting a second opinion on submitted copy
Teams screening images and audio for synthetic origin
Non-native writers smoothing register and tone