Comparison

ChtSafe vs Preo Scanner

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

Head to head
About

ChtSafe

Read full description

One app. Every frontier AI. Zero knowledge of who you are. ChtSafe brings GPT-5.4, Claude 4.6, Gemini 3.1 Pro, Grok, DeepSeek, Perplexity, and leading open-source models into a single encrypted workspace โ€” and lets them work together on your hardest problems. WHY ONE MODEL WHEN YOU CAN HAVE THEM ALL Composer runs your prompt across several frontier models at once and synthesizes the strongest answer. Want receipts? Every raw output is right there, side by side. PRIVACY THAT ACTUALLY MEANS SOMETHING The ShinrAI Encryption Engine anonymizes and encrypts every prompt with a zero-knowledge design. Neither ChtSafe nor the model vendors can see who you are. Ideal for sensitive questions, trade secrets, and conversations that leave no trace. FILES WITHOUT THE WORRY Drop in PDFs, Excel, Word, and images. Everything is processed on a private GPU cluster โ€” only anonymized vector embeddings ever leave. ANSWERS YOU CAN CHECK Research agents cross-reference responses against live sources, including web search and Perplexity. Grounded information instead of confident guessing. A FULL MEDIA SUITE Generate images, music (Google Lyria), video, and audio โ€” including the Nano Banana 2 image model. Right in the chat, editable with follow-up prompts, and fully encrypted. COMPLETELY REBUILT IN v2.7.3 โ€ข Streaming chat with visible thinking and tool steps โ€ข @-mention knowledgebase files and connected folders (Nextcloud, OneDrive, SharePoint) โ€ข Switch seamlessly between desktop and phone โ€” your chat just keeps going โ€ข Automatic recovery from network drops โ€ข New desktop apps for macOS, Windows, and Linux (beta) ONE SUBSCRIPTION INSTEAD OF THREE Replace ChatGPT Plus, Claude Pro, and Gemini Advanced with a single plan. Choose Unlimited monthly or yearly, or pay as you go with Sparks that never expire. ChtSafe is built for privacy-conscious professionals, entrepreneurs, and researchers who want frontier AI without handing over their data. Top-tier models and real privacy โ€” you no longer have to choose. Download ChtSafe today. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://chtsafe.com/privacy.html

About

Preo Scanner

Read full description

Welcome to Preo Scanner: offline-capable QR scanning for events and festivals. Manage preorders, rentals, deposits, ticketing, and more from a single app. Key Features: - Scan QR Codes Offline - Scan and process vouchers without an internet connection. Preo Scanner works fully offline, so busy venues and patchy Wi-Fi never slow you down. - All-in-One Event Operations - Handle preorders, rentals, deposits, and gate entry in one place. Less switching, faster service, smoother experience for staff and attendees. - Real-Time Sync - When connectivity is available, data syncs automatically across devices. Pick up where you left off on any device - nothing gets lost.

Screenshots

ChtSafe4 screens
Preo Scanner2 screens

Verdict

The call

The clearest difference is in-app purchases: Preo Scanner at none against ChtSafe's 5. ChtSafe's advantage is update cadence (every 10 days vs every 2 months) and device support (3 vs 1). On price and ads there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. ChtSafe sells 5 in-app purchases, starting at $24.99 per month. Preo Scanner asks for nothing beyond the download.

UpkeepUpdate frequency

ChtSafe ships an update every 10 days, Preo Scanner every 2 months. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard4 real differences ยท 2 level
ChtSafe versus Preo Scanner: the parameters behind the verdict, then further details
ParameterChtSafePreo Scanner
PriceFreeFree
Update frequencyEvery 10 days โ€” betterEvery 2 months
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhone, iPad, Mac โ€” betteriPhone
Requires iOS16.0 โ€” better18.4
Further details โ€” not scored
Size59 MB48 MB
Age rating17+4+
DeveloperInnoviusPreo ApS

In-app purchases

5 purchases

ChtSafe

Subscriptions1
  • Unlimited Sparks ยท Monthly$24.991 Month
One-time4
  • Starter Pack$5.99
  • Casual Pack$8.99
  • Builder Pack$22.99
Show 1 more
  • Pro Stash$44.99
None

Preo Scanner

No in-app purchases

Questions

Is ChtSafe free?
ChtSafe is free to download, with in-app purchases available.
Is Preo Scanner free?
Preo Scanner is free to download, with no in-app purchases.
Do ChtSafe or Preo Scanner have ads?
Neither ChtSafe nor Preo Scanner shows ads.
Which is updated more often, ChtSafe or Preo Scanner?
ChtSafe ships an update every 10 days, and Preo Scanner every 2 months. Most recently, ChtSafe was updated on October 30, 2026 and Preo Scanner on October 31, 2026.

Other comparisons