Comparison

Cortex vs Opterra Cortex

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

Head to head
About

Cortex

Read full description

Cortex reads your images, documents, and text โ€” entirely on your device. No cloud. No account. No data sent anywhere. After a one-time model download, it works with no internet connection at all. Built for professionals who can't hand their confidential work to a cloud service, Cortex gives you the full power of a modern AI without the data exposure. No terms of service that claim rights to your inputs. No server logs. No risk of a breach leaking your client's name. Key features: - Voice mode โ€” speak naturally, get spoken replies. Fully on-device, nothing stored - Audio & video input โ€” attach media files and ask questions about them - Image & document input โ€” analyse photos, contracts, receipts, prescriptions and more - Fully offline after model download โ€” works on a plane, in a courthouse, anywhere - Zero data collection โ€” nothing is ever transmitted or stored outside your device - 43 supported languages โ€” switch freely between languages in any conversation - One-time purchase โ€” no monthly subscription, no usage limits after going Pro - Free tier included โ€” 25 messages per day at no cost, upgrade whenever you're ready - GDPR-friendly โ€” no data transfers to US servers or third parties Cortex runs a powerful on-device language model entirely on your hardware, giving you conversational AI that's fast and capable without any cloud dependency. Download free and try it today. Upgrade once โ€” use it forever.

About

Opterra Cortex

Features
Read full description

Opterra Cortex is your field service toolkit. Assess water heaters and assets on-site, capture inspection photos, and send professional health reports to homeowners โ€” right from your phone. Walk up to any unit, enter what you see, and get an instant health score with clear recommendations you can share on the spot. No paperwork, no waiting. Track every property, customer, and piece of equipment you service in one place. Review past assessments, log maintenance, and pick up where you left off โ€” even without cell service. Your work syncs automatically when you're back online. Focus on the job, not the app. Requires an organization account. Ask your admin to set up your login on their Cortex Dashboard.

Screenshots

Cortex4 screens
Opterra Cortex3 screens

Verdict

The call

The clearest difference is in-app purchases: Opterra Cortex at none against Cortex's 1. Cortex's advantage is device support (3 vs 1). On price, ads and iOS requirement 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. Cortex sells 1 one-off in-app purchase. Opterra Cortex asks for nothing beyond the download.

Scorecard2 real differences ยท 4 level
Cortex versus Opterra Cortex: the parameters behind the verdict, then further details
ParameterCortexOpterra Cortex
PriceFreeFree
Update frequencyEvery 4 monthsโ€”
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhone, iPad, iPod โ€” betteriPhone
Requires iOS15.1 โ€” better16.0
Further details โ€” not scored
Size84 MB35 MB
Age rating4+4+
DeveloperIppocode Technologies LLPEvan Graven

In-app purchases

1 purchases

Cortex

One-time1
  • Cortex Pro$19.99
None

Opterra Cortex

No in-app purchases

Questions

Is Cortex free?
Cortex is free to download, with in-app purchases available.
Is Opterra Cortex free?
Opterra Cortex is free to download, with no in-app purchases.
Do Cortex or Opterra Cortex have ads?
Neither Cortex nor Opterra Cortex shows ads.

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