Comparison

Site Audit One vs GPTZero

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Site Audit One

Features
Read full description

Turn every site walk into a clear, defensible field report before you leave the jobsite. Site Audit One combines fast issue capture, photos, voice notes, plan pins, assignments, reinspections, and polished PDF or CSV reports in one offline-first iPhone workflow. CAPTURE ISSUES FAST • Create findings with photos, titles, notes, priority, trade, assignee, location, and due date • Use Save & Next to keep moving through the site • Add multiple photos with captions and non-destructive markup • Keep original, completion, and reinspection evidence together KNOW WHAT CHANGED • Move issues from Open through Ready to Verify and Verified • Compare before-and-after evidence side by side • Pin findings to imported PDF plans or images • Search and filter by status, priority, trade, assignee, area, or due date REPORT FROM THE FIELD • Preview the exact report before export • Create professional PDF and CSV packages • Choose layouts, themes, branding, captions, and before/after presentation • Share through Files, AirDrop, Mail, Messages, print, or any system share destination WORK OFFLINE Projects, findings, photos, plans, and reports remain available without a connection. Optional iCloud continuity keeps your own devices in sync when enabled. Exportable project archives help keep your records portable. The free tier includes one active project, up to 25 active issues, two photos per issue, and a standard PDF. Site Audit One Pro unlocks unlimited capture, advanced Report Studio features, plan workflows, reusable templates, and iCloud continuity. SUBSCRIPTION INFORMATION Weekly, monthly, and yearly auto-renewing subscriptions are available. Payment is charged to your Apple ID account at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel your subscription in your Apple ID account settings. Any unused portion of a free trial is forfeited when a subscription is purchased. Privacy Policy: https://site-audit-one-4e849f.web.app/privacy.html Terms of Use: https://site-audit-one-4e849f.web.app/terms.html EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

GPTZero

This tool analyzes text to determine if it was AI-generated, providing a likelihood score and sentence-by-sentence breakdown. It also offers a humanizer feature to rewrite AI-generated content into a more natural style, ensuring privacy by processing data on your device.

Highlights
  • AI-generated text detection
  • Sentence-by-sentence analysis
  • On-device private processing
  • Text humanizer
  • Camera and dictation input
Features
Read full description

Gptzero AI checks whether writing looks AI-generated and helps you make it sound more human. Paste, scan with your camera, or dictate text to get an instant likelihood score with a sentence-by-sentence breakdown — analyzed privately on your device. Then use the Humanizer to rewrite AI-flavored text into a more natural voice. Fast, private, and built for students, writers, and editors. GPTZero AI is free to download. A subscription is required to unlock and use all of the app's features. Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Site Audit One4 screens
GPTZero4 screens

Verdict

The call

The clearest difference is update cadence: GPTZero at every 6 days against Site Audit One's every 2 weeks. 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Site Audit One sells 3 in-app purchases, starting at $4.99 per 7 days and GPTZero sells 2 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Site Audit One ships an update every 2 weeks, GPTZero every 6 days. Both last shipped on October 31, 2026.

Scorecard1 real difference · 8 level
Site Audit One versus GPTZero: the parameters behind the verdict, then further details
ParameterSite Audit OneGPTZero
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 2 weeksEvery 6 days — better
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhoneiPhone, iPad — better
Requires iOS17.017.0
Further details — not scored
Size24 MB12 MB
Age rating4+12+
DeveloperSecgin LLCBobby Preston

In-app purchases

3 purchases

Site Audit One

Subscriptions3
  • Site Audit One Pro Weekly$4.997 Days
  • Site Audit One Pro Monthly7 Days trial$9.991 Month
  • Site Audit One Pro Yearly7 Days trial$59.991 Year
2 purchases

GPTZero

Subscriptions2
  • AI Detector & Humanizer$6.997 Days
  • AI Detector & Humanizer$89.991 Year

Questions

Is Site Audit One free?
Site Audit One is free to download, with in-app purchases available.
Is GPTZero free?
GPTZero is free to download, with in-app purchases available.
Do Site Audit One or GPTZero have ads?
Neither Site Audit One nor GPTZero shows ads.
Which is updated more often, Site Audit One or GPTZero?
Site Audit One ships an update every 2 weeks, and GPTZero every 6 days. Most recently, Site Audit One was updated on October 31, 2026 and GPTZero on October 31, 2026.

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