ZeroGPT Alternative - Free AI Text Detector, No Word Limits

Most cloud-based AI detectors feel like black boxes. You paste your text, wait, then hope the result is accurate. Many add word limits or upsells that get in your way. If you want a free and private AI detector with no word limits, meet Slop or Not. It runs fully on your iPhone, so your data never leaves your device and results show up fast.

Slop or Not detecting content generated by ChatGPT while running fully locally on iPhone

Free ZeroGPT Alternative With No Word Limits

If you have tried ZeroGPT, you know the drill: paste, check, hit a size wall, split text, repeat. Most cloud tools set limits because they pay for every token they process. Those costs show up as word limits and paid tiers.

Slop or Not flips the script. Because detection runs on your phone, there is no per-token cloud bill. That means:

No word limits - paste long essays, reports, or docs in one go.
Free tier: 3 checks/day (up to 5/day for daily users).
Pro and Lifetime options - unlock unlimited checks. Lifetime is a one-time purchase with Family Sharing.

Students and academics often handle very long documents. Word-count-based pricing on web tools simply is not affordable at scale. With Slop or Not's on-device approach, you can check full theses, essays, and research notes in a single pass.

How Most Cloud-Based AI Detectors Work - And Why Limits Appear

Most online AI detectors are ChatGPT (or similar AI service) wrappers with custom prompts. They often use style-based heuristics like perplexity or sentence burstiness to guess if text was written by an AI. Research also shows LLMs tend to favor certain adjectives and phrases, which becomes another signal detectors probe. See the paper: LLMs Use a Fewer Set of Adjectives.

That approach has three big side effects:

Costs scale with tokens - so tools push you to paid plans and word-count limits. For example, see their pricing.
Accuracy struggles on newer models and human-like rewrites - because style heuristics break when the style changes.
Your data is shared with 3rd party LLM providers, who may retain them and even use them for training their AI models.

This is why an on-device AI detection is a big shift. No cloud costs. Faster feedback. More control and guaranteed privacy.

Slop or Not: On-Device AI Content Detection Built For Privacy

For Slop or Not, we curated a large dataset of pre-AI human content and synthetic AI content, then fine-tuned compact detection models for both text and image modalities. Our models run efficiently on iPhone with Apple Silicon, utilize the Apple Neural Engine and are updated regularly to keep pace with new generators. The benefit is twofold: real-world accuracy and complete local privacy.

What you get in this free ZeroGPT alternative:

100% on-device AI detector for text and images - nothing leaves your phone.
No word limits - check full documents without chopping them up.
Lightning-fast results with instant feedback.
Text Cleanup - removes hidden characters (e.g., zero-width spaces), homoglyphs, and odd punctuation, and normalizes spelling.
Incognito mode - no local history.
Shareable results and AI-slop sticker packs.
Works offline after one-time model download.

This privacy-first design makes Slop or Not ideal for doctors, lawyers, and other professionals who handle confidential material, as well as teams in healthcare, legal, and finance who have strict confidentiality requirements.

ZeroGPT vs Slop or Not - The Practical Differences

Pricing And Word Limits

ZeroGPT: web-based, with paid tiers and per-check size caps. See pricing.
Slop or Not: Free tier 3 checks/day (up to 5/day for daily users) and no word limits per document, with optional Pro and Lifetime (one-time purchase with Family Sharing).

If you check lots of long docs, this alone is a game-changer. Students and academics in particular process large volumes, and word-count-based pricing simply is not affordable.

Privacy And Speed

ZeroGPT: your text goes to the cloud.
Slop or Not: all processing happens on your device, so it is fast and private by design.

Accuracy In The Real World

Cloud heuristics can struggle as writing styles evolve.
On-device models in Slop or Not are fine-tuned on mixed human and AI data and updated over time. We treat detection as a moving target and ship updates as new models appear.

How Slop or Not's AI Content Detection Works On-Device

We run compact transformer models locally, optimized for iPhone. That means we can analyze full text and images without sending anything to a server. For images, we detect common watermark standards like C2PA and IPTC metadata (automatically added by Generative AI apps such as ChatGPT, Gemini, Adobe Firefly, or Grok) and patterns shared by many AI generators. For text, we look for fingerprints beyond basic style cues, and our Text Cleanup can scrub invisible markers like zero-width spaces or homoglyphs that sometimes tag content.

Because it is on-device, we do not need to meter your words. You get speed, privacy, and confidence that the content you check stays with you.

Note: AI text detection currently supports English only. We are actively working to expand language coverage soon.

7 Simple Signs To Spot AI Content Yourself

Even with a tool, it helps to build your own radar. Use these checks like a pocket guide.

Smooth but empty - the text reads like a perfect sidewalk, but there are no scuffs. Crisp sentences, light on concrete details. Ask: does it name people, places, dates, sources that can be checked?
Adjective drift - repeated safe adjectives and hedges. Think of it as a car stuck in third gear: always reasonable, never specific. The adjective study explores this pattern.
Citation fog - references that look right but lead nowhere. Click links. Search exact quotes. AI can hallucinate sources.
Punctuation puzzles - weird dashes, funky quotes, zero-width spaces, or homoglyphs. Our Text Cleanup removes these with one tap.
Time slip - gets dates wrong or ignores very recent events. Ask for timelines.
Odd rhythm - every sentence is the same length, like a metronome. Humans vary short and long lines by feel.
Over-eager summaries - fast summaries that miss key nuance. A quick follow-up question will often reveal gaps.

Use this list first, then confirm with a trusted AI detector. Together they catch more.

Use Cases for No Word Limit Private AI Text Detector

Students and academics - check essays, theses, and research notes without uploading to the cloud. No word limits, no per-token surprises.
Journalists and fact-checkers - verify quotes and images on the spot, even offline.
Online dating - spot suspicious bios and deepfake photos before you reply.
E-commerce - check product reviews for AI slop before you buy.
Doctors, lawyers, and teams with sensitive data - keep client content on-device, always.

How To Use Slop or Not

Install Slop or Not from the App Store.
Open once to download the on-device models.
On the home screen, tap Select Photo, or use Paste image or Paste text to add content.
Slop or Not analyzes on-device and shows a result card within seconds. Use History to revisit checks when needed.
Optional: run Text Cleanup to remove hidden markers, then share a clean copy.

That is it. A fast, free AI detector with no word limits and no uploads.

Frequently Asked Questions About Slop or Not

Is it really on-device?

Yes. After setup, checks run locally, even offline.

How accurate is it?

Our internal mixed-domain benchmarks as of June 2025 show about 95% for AI text, 90% for non-watermarked AI images, and 100% for ChatGPT, Grok, Gemini, and Flux and many other AI image generators. Results can vary as new models appear. We ship updates often.

What about privacy rules?

Your content stays on your iPhone. We do not collect it. This design helps you meet GDPR and similar standards.

What does Pro include?

Unlimited checks, Text Cleanup, Incognito mode, and dedicated email support. Pro and Lifetime (one-time purchase with Family Sharing) are available. Availability and pricing may vary by region.

Download Free AI Content Detector With No Word Limits

Cloud checkers charge by the token and add word limits because they must. Many lean on style heuristics that newer models can dodge. Slop or Not runs fully on your device, so you get no word limits, fast results, and 100% privacy. It is built by two engineers who care about cutting AI slop and is updated often.

Download Slop or Not for free and try it now.