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 Copyleaks: AI Detector (2026)
Copyleaks is the right call for a school running its AI checks through an LMS — the same detector plugs straight into Canvas, Moodle, D2L Brightspace, and four other platforms. Outside that pipeline, Slop or Not covers the same text-and-image ground on one iPhone or Mac, with no LMS account to set up.
Copyleaks is an enterprise content integrity platform with AI text, image, video, and deepfake detection. It integrates with Canvas, D2L Brightspace, Moodle, and other LMS platforms, and offers an API for larger workflows. The suite targets organizations managing content across multiple systems; Slop or Not handles private spot checks on one iPhone or Mac, with no per-document word cap in the native app.
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 | Copyleaks |
|---|---|---|
| Best fit | On-device iPhone and Mac checks or free browser checks for text and images | Content integrity suite for education, enterprise, developers, and publishers |
| Text detection | Checks writing in the native app and online checker | AI text detector with model coverage and multilingual support |
| Image detection | Checks photos, synthetic images, and provenance clues in the app or online checker | AI Image Detector is listed in the AI Detector product menu |
| Deepfake detection | Covers deepfake and synthetic-image checks as image detection | AI Video Detector and Deepfake Detector are listed |
| 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 | AI Logic, AI phrases, source match, highlights, and reports are described |
| Browser checker | Free online checker runs in any browser on Numen's private Mac server; submissions are deleted after processing | Browser extension and Google Docs add-on are listed |
| 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 | Enterprise AI detection via API is listed |
| Classroom workflow | Useful for checking student writing on-device in the app or through deleted-after-processing online checks | LMS integration for Canvas, D2L Brightspace, Moodle, Blackboard, Schoology, Edsby, and Sakai is listed |
| 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. | Free web scan limit is listed as up to 25,000 characters without logging in |
| 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. | Lists GDPR, SOC 2, SOC 3, PCI DSS, and NIST RMF references |
| Main limitation | On-device privacy requires iPhone or Mac; browser checks run on Numen's private Mac server, not on-device | Full sentence-level insights and enterprise integrations require account or paid workflows |
✓ = supported, ✕ = not offered, – = not publicly documented. Details reviewed June 2026 from public product, pricing, documentation, and benchmark pages.
Sources reviewed
Where your text & images go
With Copyleaks, your submitted files and documents (its policy calls this "Content") are scanned, and it separately collects identification data such as your name, email, and password. Its policy says submitted Content may be used to improve and train its services, with an opt-out available through support. See the Copyleaks 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 is the one-person version of what Copyleaks sells to a school district: open the app, check the essay or the photo, done — no LMS integration required first.
- 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.
Copyleaks
Use it for organizations that need content integrity controls across LMS, API, and browser workflows.
Common Questions
Does Copyleaks check images the way Slop or Not does?
Yes — Copyleaks lists an AI image detector and a deepfake detector inside its enterprise suite. Slop or Not checks text and images in one personal app, including SynthID, C2PA, and IPTC provenance reads on the device.
Which one is better for a single teacher checking a student essay?
Slop or Not — a quick, private check without uploading to a third-party server. Copyleaks suits schools and organizations that need LMS integration and centralized reporting instead.
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 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.
Slop or Not vs QuillBot
QuillBot folds its AI detector into a paraphrasing suite writers already use, but the free tier caps at 1,200 words a scan and six scans a day.
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.
