Slop Or Not vs TXTdiff
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Slop Or Not
Detect AI-generated text and images privately on your device. Offers industry-leading accuracy for watermarked images and AI-generated content, with options to remove hidden traces in text. Works offline and ensures your data never leaves your iPhone.
- 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
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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 and 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 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: 1 check/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
TXTdiff
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The App is a text verification and printing comparison tool based on optical character recognition (OCR) and barcode detection technology, designed for enterprise quality inspection use cases. It allows users to: • Capture photos via camera or import images from the photo library or Files app for text verification; • Automatically recognize text in images locally on-device using the Apple Vision framework; • Compare recognition results against reference text line by line and character by character to generate difference reports; • Perform barcode recognition and comparison, supporting EAN-13, EAN-8, Code128, ITF-14 and other major symbologies; • Export PDF inspection reports for archiving and traceability; • All core functionality runs locally on-device, except for in-app purchase verification. Privacy Policy: https://txtdiff.nashapp.top/privacy.html EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms of Service: https://txtdiff.nashapp.top/service.html
Screenshots
Verdict
The clearest difference is update cadence: Slop Or Not at every 3 weeks against TXTdiff's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Slop Or Not sells 3 in-app purchases, starting at $2.99 per month and TXTdiff sells 2 in-app purchases, starting at $14.99 per 6 months. Whichever you choose, the download price is not the number that matters.
Slop Or Not ships an update every 3 weeks, TXTdiff every 2 months. The most recent releases landed on November 12, 2026 and November 13, 2026 respectively.
| Parameter | Slop Or Not | TXTdiff |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (12 ratings) — better | — |
| Positive reviews | 30.0% of reviews | — |
| Number of ratings | 12 — better | — |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, Mac | iPhone, iPad |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 88 MB | 56 MB |
| Age rating | 4+ | 4+ |
| Developer | Numen Technologies Limited | 宇 鄢 |
In-app purchases
Slop Or Not
- Pro Monthly3 Days trial$2.991 Month
- Pro Yearly (Family Sharing)7 Days trial$19.991 Year
- Lifetime Pro (Family Sharing)$49.99
TXTdiff
- Semi-Annual with 7-Day Free Trial$14.996 Months
- Annual with 15-Day Free Trial$19.991 Year









