Software Alternatives, Accelerators & Startups

Undetectable.ai VS Diffly

Compare Undetectable.ai VS Diffly and see what are their differences

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Undetectable.ai logo Undetectable.ai

The most powerful and advanced AI humanizer tool, built to bypass AI algorithms and ensure that your writing remains undetectable to AI detectors.

Diffly logo Diffly

Diffly is the leading win-loss analysis solution in Europe that helps B2B companies close more deals. Diffly combines AI technology with services to help you increase win rates, improve Go to market strategy and make decisions based on reliable data.
  • Undetectable.ai Homepage
    Homepage //
    2024-02-07

Undetectable.ai is an essential rewriting tool to detect and humanize your AI text from ChatGPT, Jasper, Copy.AI and similar AI tools into completely human-like content that avoids AI detectors.

Not present

Make your business truly Customer-centric

Diffly helps you digitize and automate the collection of feedback from your prospects and customers (win/loss analysis, churn analysis).

By connecting your CRM to Diffly, you make sure none of your sales cycles ever ends without collecting feedback. Join the 80% of B2B companies worldwide implementing a consistent win-loss analysis process, and boost your conversion rates by up to +50% (Gartner).

The Diffly Solution

B2B companies often leave money on the table by losing deals they could have won, without knowing why. Our mission is to bring a human touch back into the feedback process. In addition to our CRM-integrated software and structured quantitative surveys, we offer a third-party interview service to collecte feedback from your prospects and customers directly. Diffly combines pragmatism, speed, and plug-and-play efficiency through a unique blend of SaaS and Service:

The Service: 30/45-minute one-on-one interviews with your prospects or clients, revisiting the sales process to gather first-hand insights. As a trusted third party, we gather open and honest conversations.

The Technology: Our platform identifies and automates which deals to target. Then, our AI analyzes conversations, detects key themes, and aggregates insights, helping you make informed, strategic decisions across your sales funnel. Difflyโ€™s high valued added Every sales opportunity becomes a learning opportunity: whether won or lost, Diffly kicks in automatically. Through targeted, structured surveys, we uncover the true decision-making criteria of your buyers, along with rich insights about your market, competitors, and positioning, straight from the field.

Actionable insights, not assumptions: Understand the real reasons behind every win and loss, and act on them. Cross-team alignment: Sales, Marketing, and Product teams access the same insights, ensuring a coherent strategy and data-driven decisions.

Diffly

Website
diffly.co
$ Details
-
Release Date
-
Startup details
Country
France
Founder(s)
Julien Cohen-Roussey, David Guillermain, Anne-Sophie Vasseur-Clement
Employees
20 - 49

Undetectable.ai features and specs

  • Advanced AI Detection Avoidance
    Undetectable.ai is designed to help users create content that is less likely to be flagged by AI detection systems, making it beneficial for users who need to ensure their content passes AI checks.
  • User-Friendly Interface
    The tool offers an intuitive and easy-to-navigate interface, making it accessible for users of various technical backgrounds to easily generate and modify text.
  • Versatile Use Cases
    Undetectable.ai can be employed for a wide range of applications, from content creation to academic work, where discretion and authenticity are critical.

Possible disadvantages of Undetectable.ai

  • Potential Ethical Concerns
    There are ethical implications associated with using technology designed to circumvent AI detection, as it may facilitate academic dishonesty or the spread of misinformation.
  • Dependency on Technology
    Users might develop a reliance on tools like Undetectable.ai to ensure their content is AI-safe, potentially diminishing their own skills in creating independently AI-resilient work.
  • Limited Accuracy Guarantee
    While it aims to bypass detection, there is no foolproof guarantee that content will remain completely undetectable across all current and future AI systems.

Diffly features and specs

No features have been listed yet.

Analysis of Diffly

Overall verdict

  • I don't have verified, up-to-date information about Diffly (diffly.co) to give you a reliable assessment of its quality. I'd recommend checking recent user reviews, the company's website, and independent sources before making a decision.

Why this product is good

  • I don't have specific, verified data on this product/service in my training
  • Details about niche or newer tools may be outdated or unavailable to me
  • Providing an assessment without reliable information could be misleading

Recommended for

  • Anyone considering this tool should check recent reviews on sites like G2, Trustpilot, or Capterra
  • Users should visit the official website to review current features, pricing, and use cases
  • Reaching out to the company directly or trying a free trial (if available) can help verify legitimacy and fit

Undetectable.ai videos

๐Ÿ”ฅNEW Tool Beats Originality 10/10 [Undetectable.ai Review]

Diffly videos

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Category Popularity

0-100% (relative to Undetectable.ai and Diffly)
AI Writing
100 100%
0% 0
Customer Insights
0 0%
100% 100
AI
100 100%
0% 0
Marketing Analytics
0 0%
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Undetectable.ai and Diffly

Undetectable.ai Reviews

I Tested 5 AI Humanizers on the Same Essay โ€” Only One Passed All Detectors
The tools that work โ€” specifically HumanizeFast, and to a lesser extent Undetectable.ai โ€” take a fundamentally different approach. They don't just rewrite sentences. They restructure them, inject controlled randomness into word choice, vary sentence lengths intentionally, and break the structural patterns that detectors use as signals. They're not paraphrasing; they're...
Best AI Humanizer Tools Compared (2026): Free & Paid Options
If you prefer a more established platform, Undetectable.ai is the strongest alternative. Strong bypass performance, good mode variety, and a proven track record. The higher price and lack of a lifetime plan are the main drawbacks.

Diffly Reviews

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Social recommendations and mentions

Based on our record, Undetectable.ai seems to be more popular. It has been mentiond 11 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Undetectable.ai mentions (11)

  • 10 Top Tools for Detecting AI Content
    Undetectable.ai is a powerful AI detector that analyzes text to determine whether it was generated by artificial intelligence. It stands out by offering a free AI detection tool with a multiple-scoring system, allowing users to see how different AI detectors evaluate their content. Unlike traditional detectors, it also provides rewriting capabilities, helping users refine AI-generated text to make it more... - Source: dev.to / over 1 year ago
  • Where Does ChatGPT Get Its Data From?
    AI detection tools are essential in maintaining the integrity and transparency of AI training data used by models like ChatGPT. These tools are intended to detect and address potential issues, including personal or sensitive data, biased content, or inaccuracies. - Source: dev.to / over 1 year ago
  • My essay gets flagged for AI even though I wrote it, advice?
    This is the website I used to check: https://undetectable.ai/. Source: almost 3 years ago
  • Making LLama-2 Undetectable..?
    Basically, I want something similar to undetectable.ai, but built into oobabooga, or a similar "instruct" model that cannot be detected. Source: almost 3 years ago
  • Weโ€™re the Chronicle of Higher Education, and weโ€™ve got expertise on ChatGPT in the classroom. Ask us anything.
    Running admissions essays through these types of checkers isn't advisable. Cases where AI detectors flag human writing as AI has been well documented, and a recent Stanford study showed that detectors are biased against English language learners. Itโ€™s also relatively easy to bypass AI detectors by rewriting the text or using tools like undetectable.ai. Source: about 3 years ago
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Diffly mentions (0)

We have not tracked any mentions of Diffly yet. Tracking of Diffly recommendations started around Nov 2025.

What are some alternatives?

When comparing Undetectable.ai and Diffly, you can also consider the following products

QuillBot - Quillbot is a free paraphrasing tool that will rewrite any sentence or paraphraph you give it. The article rewriter can rewrite essays or articles and is excellent as a grammar and fluency corrector.

Klue - Klue is competitive intelligence for enterprise sales. We help sales, and the teams who enable them, leverage CI to win more deals.

Humanize AI - Transform AI-generated text into natural, human-sounding content with Humanize AI. Perfect for students, marketers, bloggers, and writers who need polished, undetectable, and emotionally resonant writingโ€”fast, free, and easy to use.

Dioptra - Dioptra is a data centric platform to automate continuous model improvement.

AI-Humanizer.com - AI Humanizer - This technology allows you to transform your AI-generated text into human-like text at the press of a button. Enhance the readability of your text and make it more authentic. Bypass AI Detection, and achieve a 100% human-like score.

M16 Marketing - Work with M16's ROI driven digital marketing strategists to generate leads, automate engagement and analyze the results of marketing campaigns.