Cortex vs TensorChat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cortex
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Cortex reads your images, documents, and text — 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 — speak naturally, get spoken replies. Fully on-device, nothing stored - Audio & video input — attach media files and ask questions about them - Image & document input — analyse photos, contracts, receipts, prescriptions and more - Fully offline after model download — works on a plane, in a courthouse, anywhere - Zero data collection — nothing is ever transmitted or stored outside your device - 43 supported languages — switch freely between languages in any conversation - One-time purchase — no monthly subscription, no usage limits after going Pro - Free tier included — 25 messages per day at no cost, upgrade whenever you're ready - GDPR-friendly — 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 — use it forever.
TensorChat
This app offers a privacy-focused AI chat experience by allowing you to download and run models directly on your device. Enjoy offline access, manage multiple conversations, and utilize voice and image inputs for a personalized AI interaction.
- On-device AI by default
- Download and manage AI models
- Offline chat functionality
- Multiple chat threads
- Voice input and text-to-speech
- Image understanding
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TensorChat is a privacy-first AI chat app built for people who want AI that stays in their hands. Download models to your device, chat locally, and keep going even when you’re offline. Choose the model that fits your needs, start multiple conversations, and switch between threads anytime. Responses stream live for a fast, natural chat experience, and your chat history stays available on your device. Use text, voice, and images in one app. Supported models can understand image inputs, voice tools let you speak naturally, and text-to-speech helps you listen to responses hands-free. TensorChat is designed for local-first AI: • On-device AI by default • Download and manage models in the app • Offline chat after setup • Multiple chat threads with saved history • Voice input and text-to-speech • Image understanding with supported models If you want a private, flexible AI assistant without depending on the cloud by default, TensorChat gives you a more personal way to chat.
Screenshots
Verdict
The clearest difference is in-app purchases: TensorChat at none against Cortex's 1. TensorChat also leads on update cadence (daily vs every 4 months). On price, ads, device support and iOS requirement 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. Cortex sells 1 one-off in-app purchase. TensorChat asks for nothing beyond the download.
Cortex ships an update every 4 months, TensorChat daily. The most recent releases landed on October 2, 2026 and October 11, 2026 respectively.
| Parameter | Cortex | TensorChat |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 4 months | Daily — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 — better | 15.5 |
| Further details — not scored | ||
| Size | 84 MB | 110 MB |
| Age rating | 4+ | 12+ |
| Developer | Ippocode Technologies LLP | General Intelligence Technologies Inc. |
In-app purchases
Cortex
- Cortex Pro$19.99
TensorChat
No in-app purchases









