Cortis: Free AI Chat Offline
In-app purchases
Everyone
info
500+
Downloads
About this app
Free AI that actually lives on your phone.
Cortis runs powerful AI models entirely on your device. No internet needed, no account, no ads, no subscription. Every conversation stays on your phone.
100% FREE TO USE
3 AI models, unlimited conversations, full Siri & Shortcuts integration, image analysis — all free. No ads. No tracking. No "free trial" that expires. The free version is the real version. Pro just adds more models and power features.
ASK SIRI, GET REAL ANSWERS
Say "Hey Siri, ask Cortis" and get a real AI response — not a web link. The AI runs entirely on your phone and answers through Siri. No app opens. Works from lock screen, CarPlay, and AirPods.
Build powerful AI automations with Shortcuts:
- Safari > Cortis Summarize > Save to Notes
- Voice Memo > Extract Action Items > Reminders
- Clipboard > Translate > Paste anywhere
17 voice commands. Full string output. Unlimited chaining.
WORKS EVERYWHERE — NOT JUST IN AN APP
- Share Extension — Select text in Safari, Mail, or Notes to summarize, translate, or ask
- Spotlight — Search past conversations from your home screen
- Quick Actions — Long-press for instant new chat
- Siri — Hands-free AI from anywhere on your phone
ANALYZE IMAGES ON-DEVICE
Point your camera or share a photo — Cortis analyzes images using multimodal AI, completely offline. Describe what's in a photo, extract text, get explanations. No image ever uploaded to any server.
AIRPLANE MODE? TRY IT.
Toggle airplane mode. Ask a question. Get an answer. No Wi-Fi, no cellular — just your phone running a real language model with Metal GPU acceleration.
YOUR WORDS NEVER LEAVE YOUR PHONE
Zero data transmitted. No account. No cloud sync. Conversations stored only on your device. Not encrypted in transit — never transmitted at all.
15+ MODELS, YOUR CHOICE
Llama, Gemma, Qwen, Mistral, Phi — running natively with Metal GPU. Plus language-optimized models for Turkish, Japanese, Korean, Arabic, Chinese, German, French, Spanish & Russian. Not translated — natively trained.
CONNECT YOUR DESKTOP (Pro)
Run Ollama or LM Studio on your computer? Connect over Wi-Fi and use 70B+ models from your phone.
$14.99 ONCE — NOT $240/YEAR
ChatGPT Plus costs $20/month. Cortis Pro is one payment, forever. Start free — upgrade only when you want more models. No pressure, no paywall popups.
Built by an indie developer. No VC. No data farming. Just software that respects you.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Cortis runs powerful AI models entirely on your device. No internet needed, no account, no ads, no subscription. Every conversation stays on your phone.
100% FREE TO USE
3 AI models, unlimited conversations, full Siri & Shortcuts integration, image analysis — all free. No ads. No tracking. No "free trial" that expires. The free version is the real version. Pro just adds more models and power features.
ASK SIRI, GET REAL ANSWERS
Say "Hey Siri, ask Cortis" and get a real AI response — not a web link. The AI runs entirely on your phone and answers through Siri. No app opens. Works from lock screen, CarPlay, and AirPods.
Build powerful AI automations with Shortcuts:
- Safari > Cortis Summarize > Save to Notes
- Voice Memo > Extract Action Items > Reminders
- Clipboard > Translate > Paste anywhere
17 voice commands. Full string output. Unlimited chaining.
WORKS EVERYWHERE — NOT JUST IN AN APP
- Share Extension — Select text in Safari, Mail, or Notes to summarize, translate, or ask
- Spotlight — Search past conversations from your home screen
- Quick Actions — Long-press for instant new chat
- Siri — Hands-free AI from anywhere on your phone
ANALYZE IMAGES ON-DEVICE
Point your camera or share a photo — Cortis analyzes images using multimodal AI, completely offline. Describe what's in a photo, extract text, get explanations. No image ever uploaded to any server.
AIRPLANE MODE? TRY IT.
Toggle airplane mode. Ask a question. Get an answer. No Wi-Fi, no cellular — just your phone running a real language model with Metal GPU acceleration.
YOUR WORDS NEVER LEAVE YOUR PHONE
Zero data transmitted. No account. No cloud sync. Conversations stored only on your device. Not encrypted in transit — never transmitted at all.
15+ MODELS, YOUR CHOICE
Llama, Gemma, Qwen, Mistral, Phi — running natively with Metal GPU. Plus language-optimized models for Turkish, Japanese, Korean, Arabic, Chinese, German, French, Spanish & Russian. Not translated — natively trained.
CONNECT YOUR DESKTOP (Pro)
Run Ollama or LM Studio on your computer? Connect over Wi-Fi and use 70B+ models from your phone.
$14.99 ONCE — NOT $240/YEAR
ChatGPT Plus costs $20/month. Cortis Pro is one payment, forever. Start free — upgrade only when you want more models. No pressure, no paywall popups.
Built by an indie developer. No VC. No data farming. Just software that respects you.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App activity, App info and performance, and Device or other IDs
Data is encrypted in transit
Data can’t be deleted
App support
About the developer
NERON LLC
batuhanayhan@neron.app
30 N Gould St Ste R
Sheridan, WY 82801-6317
United States
+90 542 228 82 94
