# Slop Or Not - AI Detector — AI, Deepfake & Photo Checker

> On-device AI detector for text and images with privacy focus. (iPhone/iPad app by Numen Technologies Limited.)

- Source: https://appshunter.io/ios/app/slop-or-not-ai-detector/id6744578596 (this page in markdown: same URL + `.md`)
- Developer: [Numen Technologies Limited](https://appshunter.io/developer/1683507194)
- Category: Utilities, Education
- Price: Free with in-app purchases
- Rating: 4.20/5 from 6 App Store ratings · 9 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.0 · 80 MB
- Languages: American English, Arabic, Czech, Dutch, Finnish, French (France), German (Germany), Hebrew, Hindi, Hungarian and 15 more
- Released: 2025-09-30
- Data updated: 2026-09-03
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/slop-or-not-ai-detector/id6744578596/reviews.md

## What is Slop Or Not?

Spot AI-generated writing and images privately on your iPhone - entirely on the Apple Neural Engine. Nothing gets uploaded. Nothing leaves your device.

Most AI scanners : Winston AI, Originality, Copyleaks, Turnitin, Hive, the rest send your content to remote servers. Some also share it with third parties like advertisers and cloud providers. Slop Or Not doesn't. If you're checking for plagiarism or reviewing something sensitive and can't risk it sitting on someone else's server, that's the point.

How accurate is it?

C2PA / IPTC watermarked images: 100% detection.
Images with invisible SynthID watermarks: 100% detection.
AI-generated text: 95% on mixed-domain benchmarks (comparable to GPTZero).‡
AI-generated deepfake images: 94% on Mirage-Test - up 18 points from our previous model.

What else does it do?

A text cleanup tool strips invisible unicode, suspicious punctuation, and homoglyphs that AI text sometimes carries. It also catches paraphrase patterns from humanizer tools. One tap.

Readability scoring rates how easy your text is to read. Flesch Reading Ease and Flesch-Kincaid for English, GULPEASE for Italian, LIX for Swedish, Danish, and Norwegian, Flesch-Szigriszt for Spanish, and Wiener Sachtextformel for German.

Works offline after the initial model download.

Comes with a sticker pack for calling out AI slop in group chats.

How does it work?

Everything runs locally on your device. Models download once during setup. Paste text or pick photos to verify. Real results in seconds - all processed on-device via the Apple Neural Engine.

Pricing

Free: 3 checks/day. Hit a 5-day streak and it goes to 5/day.
Pro: unlimited. Monthly, annual, or lifetime. Annual and lifetime support Family Sharing.

Background

We shipped Private LLM almost three years ago - first on-device LLM app for iPhone. On-device AI is what we do.

*Image accuracy: Mirage-Test benchmark, March 2026. Text accuracy: internal mixed-domain benchmarks. Results may vary with newer models and adversarial attacks.
‡ English only for now. More languages coming.

Internet needed only for initial model downloads and occasional model updates and model decryption key downloads from the App Store. All detection runs on-device.
Sticker packs are for educational and informational purposes. Please follow your local data-handling regulations.

Terms (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://slopornot.ai/privacy-policy

## Key features

- On-device AI detection for text and images
- 100% accurate C2PA/IPTC watermarked image detection
- 95% accuracy for AI-generated text
- Remove hidden traces in AI text
- Works offline
- Private data handling

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Pro Monthly | $2.99 | per month |
| Pro Yearly (Family Sharing) | $19.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Pro (Family Sharing) | $49.99 | one-time |


## Recent user reviews (9 of 9)

All indexed reviews: https://appshunter.io/ios/app/slop-or-not-ai-detector/id6744578596/reviews.md

### 4/5 — Has Some Utility

*2026-08-04*

I am using free version of this app, and have found that it can be quite helpful in some situations. Not perfect, of course, but then, in this world of AI, what is?

### 4/5 — Not definitive

*2026-08-03*

My wife took a picture of me and my dog this morning. I put it up for detection. The result was “probably real“. The percentages 40 something to 50 something. That’s just not definitive enough. Maybe because the photo was cropped?

**Developer response:** A photo checked straight off an iPhone camera roll, taken that same morning, doesn't come back 40-50. The only way we've seen that split happen is when a file reaches the detector with its capture metadata stripped or altered somewhere along the way, so whatever you tested had been through more than your wife's camera.

The numbers themselves work like this: when the original capture metadata is there, the call is decisive, and when it isn't, we score the pixels alone using our SOTA Image detection model and print whatever probability that evidence actually supports. Plenty of detectors would round a 55 up to a 99 because it looks better in a screenshot. We think that amounts to lying with statistics.

Share the photo directly from your camera roll and run it again and compare the results.

### 1/5 — Garbage

*2026-07-25*

Showed it real photos and says they're AI, showed AI ones and says it's real. Not consistent either!

**Developer response:** Thanks for the review. Slop or Not checks images in layers. Files carrying AI provenance metadata, meaning C2PA, IPTC, or Google's SynthID tags, get flagged as AI, and in our internal tests that catch rate is 100%. Files without metadata go to OmniAID, our own detection model, which scores 90% on unwatermarked AI images in those same tests; results can shift as new generators appear. So yes: edit a real photo with an AI tool and the tool writes AI provenance into the file. The detector flags it because the file says so. That part of your review checks out. The other half doesn't. "Showed AI ones and says it's real" is disingenuous: it describes behavior we cannot reproduce. If it really happened, email the photo to support@slopornot.ai and we will fix it for every customer after you. The same detector runs free at slopornot.ai. Anyone reading this can test your claim themselves in seconds.

### 2/5 — Did not detect reliably

*2026-04-27*

1. Confidence was very low for the first AI image I tested.
2. Accuracy claims are misleading, given that confidence scores vary, and this score was not very high on an AI abstract I tested. People will falsely assume a 75% confidence score falls within the 95% accuracy threshold. 
3. The possibility of false positives is not disclosed, which could lead to overconfidence and unfair penalization of students, if present at all.

No way to attach text, pdf, or doc files on iOS.

**Developer response:** Quick note on the numbers since they get conflated a lot. Per-class accuracy on our test set and per-image confidence aren't measuring the same thing. 75% confidence on a sample doesn't contradict 95% per-class accuracy. False positive risk is called out in the app itself and on the store page, and PDF or document attachment isn't on the roadmap because the iOS Share Sheet already handles those flows. If you've got a sample you want us to look at, mail support@slopornot.ai and we'll dig in. EDIT: For anyone reading this, the review was written in bad faith. The Slop Or Not text detector scores 99.09% (@ 1% FPR) on the RAID benchmark. https://raid-bench.xyz/leaderboard

### 3/5 — Not quite what I thought it was - yet.

*2026-03-18*

I thought it would blur images that are AI while I look on other apps. It might in the future. I know it’s probably a smaller developer but I cant sustainably check every image manually.

**Developer response:** You're right, iOS won't let an app scan things while you're inside another app. Apple's privacy rules need an explicit tap to hand content over. For now the quickest route is Share Sheet, then pick Slop Or Not. We're looking at an opt-in Photos auto-scan for a future build. Thanks for keeping the door open, please give it another go when that lands.

### 1/5 — False positives

*2026-02-03*

I used two of my first three free checks on logos I designed, and both came back as “AI Slop.” Since I was present throughout the process of creating said logos, and I know that used zero ai the entire time, it would seem this “detector” is a dud and will lead to wrongful accusations. I don’t think I’ll be subscribing.

**Developer response:** Sorry the first run was a miss. Logos and other hand-made artwork getting flagged is the failure mode we hate most. Since v1.0.4 the classifier has been retrained on a lot more design-tool exports, and there's now an EXIF/XMP shortcut that picks up genuine Adobe and Affinity metadata. If you've got a minute, email one of those logos to support@slopornot.ai. We'll run it through the current model, tell you what actually tripped it, and add it to our test set.

### 1/5 — Extremely inaccurate + expensive

*2026-01-11*

Sent a picture of a real person and it said deep fake, results are likely randomized.

### 1/5 — Actually useless

*2025-10-01*

This doesn’t actually check if an image is ai generated, it only checks how flat an image is
If I feed it any of my artwork prior to shading (so it has a lot of spaces that are just a solid colour) it will say my artwork is 99+% AI slop. Additionally feeding it any image that is a single solid colour, such as a screenshot of itself, will say that it is 100% ai generated. I tried generating afew images, locally too for even more obvious samples, all returned as real images.
This app does the opposite of what it is supposed to do and should not be worth your time, especially not worth your monthly subscription to be able to “check” more than 3 images per day. Furthermore, it includes a tool to help disguise AI generated slop which is completely against what the app advertises itself as. Your great grandmother is likely a more reliable tool than this app at detecting AI slop, do not recommend.

**Developer response:** Thanks for the careful test. The flat-colour and low-entropy failure you described is real, and we've been chipping away at it. The classifier in v1.0.6 and later was calibrated against more solid-colour reference plates and handles single-fill regions differently, so a flat-colour screenshot shouldn't come back as 99% AI any more. On the Britishizer, that one's there on purpose. The whole point is to show how easy it is to dodge AI-detection tools, so people see where the limits sit. If you ever want to revisit, mail support@slopornot.ai and we'll walk through your samples.

### 3/5 — I had high hopes

*2025-09-30*

I just tried it out today. I used 2 images that I knew were ai but had tricked me. And it also believed that it was real. I'll keep trying this out since I have hope that it'll be helpful.

**Developer response:** The "it's AI but it tricked me" samples are honestly the most useful feedback we get. Worth another look if you've got a moment, the latest builds ship with our new OmniAID model, which is a meaningful step up on the cases that were tripping the old classifier. The remaining weak spots are mostly heavily edited photos and a handful of Stable Diffusion fine-tunes, and if you can email a screenshot or even a hash to support@slopornot.ai we'll add similar examples to our evaluation set so the next pass narrows the gap further. Thanks for sticking with it.

## Frequently asked questions about Slop Or Not

### What is Slop Or Not?

Slop Or Not is an on-device application designed to detect AI-generated text and images. It prioritizes user privacy by processing all data locally on your iPhone, ensuring sensitive information never leaves your device.

### How accurate is Slop Or Not?

The app boasts industry-leading accuracy, with 100% detection for C2PA and IPTC watermarked images. It achieves 95% accuracy for AI-generated text and 90% accuracy for other AI-generated images using its private, on-device models.

### Does Slop Or Not have ads?

No, Slop Or Not does not contain advertisements. The app operates on a freemium model with optional Pro subscriptions for unlimited checks.

### Can I use Slop Or Not offline?

Yes, Slop Or Not works offline after the initial setup and AI model download. This allows you to detect AI content anywhere, anytime, without needing an internet connection.

### What are the limitations of the free version of Slop Or Not?

The free version of Slop Or Not allows you to check up to 3 pieces of content per day. Users who maintain a 5-day streak can check up to 5 pieces of content daily.

### What are the subscription options for Slop Or Not Pro?

Slop Or Not Pro offers Monthly, Annual, and Lifetime subscription plans. The Annual plan is $19.99 and includes a 7-day free trial, while the Monthly plan is $2.99 with a 3-day free trial.

### Is Slop Or Not safe for children?

Slop Or Not is rated for ages 4 and up, making it suitable for a wide range of users. Its focus on privacy and content detection is relevant for many age groups.

### How often is Slop Or Not updated?

The latest version of Slop Or Not is 1.0.4, and it was last updated on January 29, 2026. Updates typically include improvements to AI models and app performance.

## Version history (last 5 releases)

### 1.1.0 — 2026-07-09

- A new and improved AI generated text detector model, retrained from scratch to detect text from the latest AI models
- Slop Or Not can now detect invisible SynthID watermarks in images, entirely on-device
- Text cleanup now offers an Original / Cleaned / Changes view
- More accurate English readability scores
- Minor bug fixes and updates

Thank you for choosing Slop Or Not. We are committed to continue improving the app and to making it more useful for you. For support requests and feature suggestions, please feel free to join our Discord, email us at support@slopornot.ai, or tweet us @SlopOrNotAI. If you enjoy the app, leaving an App Store review is a great way to support us.

### 1.0.9 — 2026-05-16

- Text cleanup now offers original, cleaned, and changes views
- New settings toggle to enable/disable Neural Engine inference for the ai generated image detection model.
- Minor bug fixes and updates

Thank you for choosing Slop Or Not. We are committed to continue improving the app and to making it more useful for you. For support requests and feature suggestions, please feel free to join our Discord, email us at support@slopornot.ai, or tweet us @SlopOrNotAI. If you enjoy the app, leaving an App Store review is a great way to support us.

### 1.0.8 — 2026-04-29

- Text checks now include on-device readability analysis for the following 7 languages (more to come in future updates):
- English (Flesch Reading Ease, Flesch-Kincaid Grade Level)
- German (Wiener Sachtextformel)
- Spanish (Flesch-Szigriszt)
- Italian (GULPEASE)
- Swedish (LIX)
- Danish (LIX)
- Norwegian (LIX)
- Minor bug fixes and updates

Thank you for choosing Slop Or Not. We are committed to continue improving the app and to making it more useful for you. For support requests and feature suggestions, please feel free to join our Discord, email us at support@slopornot.ai, or tweet us @SlopOrNotAI. If you enjoy the app, leaving an App Store review is a great way to support us.

### 1.0.7 — 2026-04-26

- Support for interoperability and synchronization with the new macOS version of Slop Or Not
- Minor bug fixes and updates

Thank you for choosing Slop Or Not. We are committed to continue improving the app and to making it more useful for you. For support requests and feature suggestions, please feel free to join our Discord, email us at support@slopornot.ai, or tweet us @SlopOrNotAI. If you enjoy the app, leaving an App Store review is a great way to support us.

### 1.0.6 — 2026-04-06

- Faster image scans. OmniAID model now uses all compute unite (CPU + GPU + Neural Engine) when possible.
- OmniAID model still uses CPU + Neural Engine for efficiency when the device is in low power mode, or when the device thermal state isn't normal.
- Images from many more AI image generators (A1111-compatible, Draw Things, ComfyUI, InvokeAI, Fooocus, Easy Diffusion, NovelAI, SwarmUI) are now detected instantly from embedded metadata
- Accessibility improvements
- Minor bug fixes and updates

Thank you for choosing Slop Or Not. We are committed to continue improving the app and to making it more useful for you. For support requests and feature suggestions, please feel free to join our Discord, email us at support@slopornot.ai, or tweet us @SlopOrNotAI. If you enjoy the app, leaving an App Store is a great way to support us.

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## More apps by Numen Technologies Limited

- [Private LLM - Local AI Chat](https://appshunter.io/ios/app/private-llm-local-ai-chat/id6448106860)
- [Clean Links: URL Cleaner](https://appshunter.io/ios/app/clean-links-url-cleaner/id6747395062)

All apps by Numen Technologies Limited: https://appshunter.io/developer/1683507194

## Related topics

[human or not ai](https://appshunter.io/ios/topics/human-or-not-ai)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-03.*