ChatKeyPT vs Private Mind
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ChatKeyPT
This application provides an advanced AI chat interface, offering access to exclusive models and multimodal capabilities like image generation. It allows for tailored responses through system prompts and a pay-as-you-go cost model, making AI assistants more accessible.
- Access to exclusive AI models
- Image generation via diffusion models
- Tailored responses with system prompts
- Pay-as-you-go cost model
- Save and share generated images
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ChatKeyPT is a new but familiar interface that allows you to take advantage of AI assistants in new ways. COST-SAVING The biggest benefit to using this platform is that you only pay for what you use, instead of a hefty monthly fee. ACCESS TO EXCLUSIVE MODELS You get full access to models exclusive to APIs that excel at things like code generation. TAILORED RESPONSES System prompts allow you to have greater control over your chat responses. Have everything explained to a five-year-old, or even hold a conversation in Shakespearean English. MULTIMODAL VERSATILITY The platform has image generation support through diffusion models. Freely save and share images that you generate. Disclaimer: In order to use this app's features, you need your own API key, which you can get from the following link: https://platform.openai.com/api-keys This app is not affiliated, endorsed, or sponsored by OpenAI.
Private Mind
This AI chatbot operates entirely offline, offering a private and secure space for writing assistance, idea generation, or conversation. Customize AI assistants and test local language models without needing an internet connection.
- Offline AI chatbot
- Private and secure conversations
- Customizable AI assistants
- Local language model testing
- No internet required
- No sign-ups or subscriptions
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Run open AI models like Llama, Gemma, and Qwen on your phone. Offline. Private. Free. No account, no tracking, no subscription. Powered by React Native ExecuTorch. Meet Private Mind, the AI assistant that never phones home. Every conversation runs entirely on your device, so it works in airplane mode, on a plane, or anywhere the internet can't reach. Why Private Mind? · 100% offline: no internet needed, chat anywhere · Total privacy: zero telemetry, your words never leave the phone · Chat with your documents: import PDF or TXT files and get answers with clickable citations, so you can verify every source · Model Hub: curated open models grouped by family, or import your own · Built-in benchmarks: see how fast each model runs on your hardware before you commit · Local speech-to-text: dictate prompts with Whisper, transcribed on-device · Make it yours: custom system prompts, chat search, conversation forking and export Models download once (about 1 to 3 GB each, best over Wi-Fi) and stay on your device. A modern phone with 4 GB+ RAM is recommended for larger models. Not sure? Run the built-in benchmark. Free and open source. Verify the code yourself: github.com/software-mansion-labs/private-mind Built by Software Mansion, core React Native contributors, on React Native ExecuTorch.
Screenshots
Verdict
The clearest difference is review sentiment: ChatKeyPT at 50% against Private Mind's 0%. ChatKeyPT also leads on rating (5.0 vs 2.3) and iOS requirement (12.0 vs 17.0). On price, ratings volume, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
ChatKeyPT holds the better App Store score, 5.0 against 2.3. Both are backed by a comparable volume of ratings — 2 and 3 respectively. Written reviews point the same way: 50% of ChatKeyPT's written reviews are positive against 0% of Private Mind's.
| Parameter | ChatKeyPT | Private Mind |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 2.3 (3 ratings) |
| Positive reviews | 50.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 2 | 3 — better |
| Update frequency | — | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 59 MB | 95 MB |
| Age rating | 12+ | 4+ |
| Developer | Jack Zgombic | SOFTWARE MANSION SP Z O O SPOLKA KOMANDYTOWA |
Customer experience
ChatKeyPT
Private Mind
In-app purchases
ChatKeyPT
No in-app purchases
Private Mind
No in-app purchases









