Free trial
No trial is described. The app itself is free with a daily check limit, and the browser detector can be used without an account, so both serve as a no-cost way to evaluate accuracy.
Learn moreSlop Or Not AI
On-device AI detector for text and images, private by default
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What is Slop Or Not AI?
Slop Or Not AI is an AI chat bot tool. A private AI detector for text and images that runs on iPhone, iPad and Mac using Apple silicon, with a free browser version. It reads SynthID watermarks, C2PA and IPTC credentials and pixel artifacts, and reports 99.5 percent text detection at a 5 percent false-positive rate on the RAID benchmark.
Slop or Not is an AI detector built around one unusual design choice: the checking happens on your own Apple hardware rather than in a data centre. The iPhone, iPad and Mac app installs a compact detection model that runs on Apple silicon with Neural Engine acceleration, so pasted text and photos never leave the device. The browser version at slopornot.ai/en/detect runs the same checks on servers the company owns itself, and it requires no account. Image detection works in layers. The tool reads the SynthID watermark that Google and OpenAI embed in the pixels, verifies C2PA and IPTC content credentials against a bundled trust list (so a forged credential fails rather than passing), looks for generator fingerprints, and finally runs its own pixel-scanning model. That last layer matters because a missing watermark proves nothing; when there is no mark to read, the image model returns a probability instead of a verdict. A provider name is only shown when a watermark is actually found. Text detection uses a custom transformer that runs offline through CoreML. The company reports 99.5 percent AI-text detection at a 5 percent false-positive rate on RAID, an independent public benchmark, and the methodology is written up on the blog for anyone who wants to check it. English is the only supported language today, with more planned. Every text check also returns readability scores calculated on-device in seven languages, using published formulae so the same passage always yields the same numbers. It suits journalists, teachers grading a class set, HR and legal teams handling documents that cannot go to a cloud LLM, moderators cleaning up communities, and ordinary users checking a dating profile photo or a product review. Compared with ZeroGPT, Hive Moderation and similar cloud services, the trade-off is clear: you get genuine on-device privacy and no word caps, but you are tied to Apple hardware for the private mode, and image accuracy is drawn from internal tests rather than a public leaderboard.
How do you use Slop Or Not AI?
1Try a check in the browser
Open the free detector page and paste an English passage or drop in a photo. No account is needed, and the result arrives in seconds with a slop score and a human or real score beside it.
2Install the app for private, offline checks
Download Slop or Not free from the App Store for iPhone, iPad or Mac. The app installs the detection model locally, and after setup checks can run without an internet connection.3Read the verdict and the slop meter
Each check returns a score from 0 to 100 alongside a plain verdict. On images, a named provider only appears when a SynthID watermark is read; otherwise you get a probability from the pixel model.4Clean hidden characters from flagged text
If text trips the detector, Text Cleanup strips hidden characters using a fixed lookup table. It does not rewrite anything, so the same input always produces the same output and your wording stays intact.5Check the benchmark or compare alternatives
The RAID accuracy write-up explains how the 99.5 percent figure was scored, and the comparison pages set the tool against ZeroGPT, Hive Moderation, FotoForensics and others before you commit.
6Wire detection into agent workflows
Pro users can install the Mac CLI and MCP server so assistants such as Claude, Cursor or Codex can request text detection, readability scores and image results directly.
Pros and cons
Pros
- Checks run on-device on Apple hardware, so sensitive text and photos are never uploadedAI
- Text detection has no per-document word cap and no monthly word allowance in the appAI
- Layered image analysis covers watermarked and unwatermarked generators, not just SynthIDAI
- RAID benchmark results are independently scored and publicly documentedAI
- Free browser version needs no login, and a daily limit is the only gate on the free appAI
Cons
- Text detection only handles English for now, which rules out multilingual review workAI
- Private on-device mode requires an iPhone, iPad or Mac, so Windows and Android users are stuck with the browser toolAI
- Image detection accuracy is based on internal tests only, with no public benchmark behind itAI
- Readability scores are approximations and say nothing about authorshipAI
- CLI and MCP access, which agent workflows depend on, sit behind the Pro tierAI
How much does Slop Or Not AI cost?
Pricing
The app is free to download and free to use with a daily check limit; Pro removes that cap and unlocks the Mac CLI and MCP server. Classroom pricing is offered inside the app. The homepage does not list specific prices or subscription amounts.
Learn moreSupport
A Discord community is linked from the homepage, and the blog carries methodology write-ups and comparison guides. No email or ticket support channel is described on the homepage.
Learn moreIntegrations
A Mac CLI and MCP server connect the detector to Claude, Codex, Hermes Agent, OpenClaw, Cursor and other AI tools. Both are Pro features and the checks execute locally on the Mac.
Learn moreFeatures
On-device text and image detection on Apple silicon, with SynthID watermark reading for Google and OpenAI images, C2PA and IPTC credential verification, generator fingerprint matching and a pixel-level image model. Text checks include readability scores in seven languages, a deterministic hidden-character cleanup tool, screenshot text extraction, and a Mac CLI plus MCP server for AI assistants.
Learn moreFrequently asked questions about Slop Or Not AI
How much does Slop Or Not AI cost?
The app is free to download and free to use with a daily check limit; Pro removes that cap and unlocks the Mac CLI and MCP server. Classroom pricing is offered inside the app. The homepage does not list specific prices or subscription amounts.Does Slop Or Not AI offer a free trial?
No trial is described. The app itself is free with a daily check limit, and the browser detector can be used without an account, so both serve as a no-cost way to evaluate accuracy.How do you use Slop Or Not AI?
The walkthrough on this page covers 6 steps: 1. Try a check in the browser 2. Install the app for private, offline checks 3. Read the verdict and the slop meter 4. Clean hidden characters from flagged text 5. Check the benchmark or compare alternatives 6. Wire detection into agent workflows.What platforms does Slop Or Not AI support?
Slop Or Not AI is available on Web App, iOS and MacOS.What does Slop Or Not AI integrate with?
A Mac CLI and MCP server connect the detector to Claude, Codex, Hermes Agent, OpenClaw, Cursor and other AI tools. Both are Pro features and the checks execute locally on the Mac.What are the limitations of Slop Or Not AI?
Text detection only handles English for now, which rules out multilingual review work. Private on-device mode requires an iPhone, iPad or Mac, so Windows and Android users are stuck with the browser tool. Image detection accuracy is based on internal tests only, with no public benchmark behind it.
Status
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Added10/21/2026
Platforms
Web AppiOSMacOS
Pricing
FreeFreemium
