Slop or Not
Use it for people who want native Apple checks or the free online checker for text, images, and provenance clues.
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AI Detector
Slop or Not vs Phrasly: AI Detector (2026)
Phrasly's detector is a free add-on to its real product: an AI humanizer built to help text slip past checks like this one. Use it for a quick free read, but for a check that isn't built by the same company selling the workaround, Slop or Not runs a standalone on-device detector on iPhone or Mac.
Phrasly is an AI humanizer: its main job is rewriting AI-generated text so it reads as human-written. It bundles a free no-sign-up AI detector for browsers, but that detector is secondary to the humanizing service. Slop or Not is a detection tool, not a rewriter. Native iPhone and Mac checks run on-device to flag AI-generated text and images.
Privacy, Pricing, and Workflow Matrix
Public product, pricing, documentation, and benchmark pages can change. Source links are listed below the table so the cells stay readable.
| Feature | Slop or Not | Phrasly |
|---|---|---|
| Best fit | On-device iPhone and Mac checks or free browser checks for text and images | Rewriting AI text to read as human, with a free bundled detector attached |
| Text detection | Checks writing in the native app and online checker | Free bundled AI detector for ChatGPT, Claude, and Gemini text |
| Image detection | Checks photos, synthetic images, and provenance clues in the app or online checker | No |
| Deepfake detection | Covers deepfake and synthetic-image checks as image detection | No |
| Metadata and provenance signals | Reads SynthID, C2PA, and IPTC signals in native and online image checks when a file carries them | Not publicly clear |
| Manual forensic tools | Reports detector and provenance evidence in native and online checks; not a manual forensic editor | No |
| Evidence level | Probability verdict plus provenance signals, with internal-test caveats instead of 99.9% certainty claims | Returns an AI-likelihood percentage with sentence-level highlighting of flagged sentences |
| Browser checker | Free online checker runs in any browser on Numen's private Mac server; submissions are deleted after processing | Free web detector with no sign-up |
| Native Apple app | Native iPhone and Mac app for on-device checks; browser users can use the free online checker | No |
| API workflow | Pro Mac app includes a local CLI and MCP server; no public hosted API | Not publicly clear |
| Classroom workflow | Useful for checking student writing on-device in the app or through deleted-after-processing online checks | Not publicly clear |
| Free tier & limits | Free daily checks in the iPhone and Mac app and a free online checker in any browser. Pro removes the native daily cap; the native app has no per-document word cap. | Detector is free with no sign-up; the AI humanizer is the paid product. |
| Privacy | Native checks stay on the iPhone or Mac and never send submitted text or images to a third-party AI provider. Online checks run on Numen's own Apple hardware, and submissions are deleted after processing. | Its detector page says submitted content is deleted when you close the tab, is not stored on its servers, and is not used to train its models |
| Main limitation | On-device privacy requires iPhone or Mac; browser checks run on Numen's private Mac server, not on-device | Built as an AI humanizer to help text pass AI detectors; the bundled detector is a secondary feature |
✓ = supported, ✕ = not offered, – = not publicly documented. Details reviewed June 2026 from public product, pricing, documentation, and benchmark pages.
Where your text & images go
With Phrasly, your submitted text is processed to generate a detection score, and its detector page says content is not stored on its servers. Its AI detector page says content is deleted when you close the tab and is not used to train its models; its general privacy policy covers account and device data, and the business API keeps temporary billing copies for up to 30 days. See the Phrasly privacy policy for details. Slop or Not keeps native checks on your iPhone or Mac, and online checks run on Numen's own Apple hardware and are deleted after processing.
Where Slop or Not Fits
Slop or Not has no humanizer to sell — it's a detector built to catch AI writing, not help it slip past one.
- Slop or Not runs its own detection models, so no third-party AI provider sees your text or images. Native checks run on the Apple Neural Engine; online checks run on Numen's self-hosted Apple hardware, and submissions are deleted after processing.
- Free daily checks in the iPhone and Mac app and in the free online checker. Pro removes the daily cap, and native checks have no per-document word cap.
How They Compare by Workflow
Slop or Not is not the right answer for every workflow — pick the tool whose strongest workflow matches the check you need to run.
Phrasly
Use it for AI humanizing with a free no-sign-up bundled detector.
Common Questions
Is Phrasly primarily an AI detector?
No — Phrasly is an AI humanizer whose paid product rewrites text to read as human-written. The bundled AI detector is a free secondary feature.
Does Slop or Not rewrite or humanize text?
No — Slop or Not checks text and images and returns a verdict on whether they appear AI-generated. It doesn't rewrite or paraphrase content.
Does Phrasly check images?
No — Phrasly's bundled detector covers AI-generated text only. Slop or Not checks both text and images, including SynthID, C2PA, and IPTC provenance reads.
Related Comparisons
Keep comparing adjacent tools before you pick a workflow.
Slop or Not vs GPTZero
GPTZero lives in Canvas and Google Docs and never leaves the browser — and it never checks an image, despite the 'AI Vision' name.
Slop or Not vs ZeroGPT
ZeroGPT needs no account and returns a verdict in seconds, but paste in more than 15,000 characters and it stops reading.
Slop or Not vs Originality.ai
Originality.ai tracks every scan in a dashboard built for agencies, but there's no free tier — every check burns a credit at roughly 100 words apiece.
Slop or Not vs Copyleaks
Copyleaks plugs into seven different LMS platforms and even flags deepfake video, but the sentence-level detail and full reporting sit behind an enterprise account.
Slop or Not vs Winston AI
Winston AI bundles plagiarism checks and writing feedback with its AI verdict, but the free lite checker stops at 2,000 characters and the real trial runs out in 14 days.
Slop or Not vs Turnitin
Turnitin's AI-writing indicator is built into a workflow schools already trust, but there's no public version — access runs through a school subscription or not at all.
Privacy tools from the same team
More From Numen
AI can now fake a profile photo or wrap a scam in a link that looks safe to tap. Numen builds the apps that put you back in charge: spot AI-generated text and images with Slop or Not, run the best open-source models uncensored and private with Private LLM, and strip trackers from links and QR codes before they follow you with Clean Links.
One belief runs through all three: your data belongs to you, and no one else.
