Comparison

ChatKeyPT vs Private Mind

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

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.

Highlights
  • Offline AI chatbot
  • Private and secure conversations
  • Customizable AI assistants
  • Local language model testing
  • No internet required
  • No sign-ups or subscriptions
Features
Read full description

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

ChatKeyPT4 screens
Private Mind4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

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.

Scorecard3 real differences · 7 level
ChatKeyPT versus Private Mind: the parameters behind the verdict, then further details
ParameterChatKeyPTPrivate Mind
PriceFreeFree
Rating5.0 (2 ratings) — better2.3 (3 ratings)
Positive reviews50.0% of reviews — better0.0% of reviews
Number of ratings23 — better
Update frequency—Every 2 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size59 MB95 MB
Age rating12+4+
DeveloperJack ZgombicSOFTWARE MANSION SP Z O O SPOLKA KOMANDYTOWA

Customer experience

ChatKeyPT

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

Private Mind

All ratings3 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

ChatKeyPT

No in-app purchases

None

Private Mind

No in-app purchases

Questions

Is ChatKeyPT free?
ChatKeyPT is free to download, with no in-app purchases.
Is Private Mind free?
Private Mind is free to download, with no in-app purchases.
Which has better reviews, ChatKeyPT or Private Mind?
ChatKeyPT is rated higher. ChatKeyPT averages 5.0 out of 5 from 2 ratings, while Private Mind averages 2.3 from 3 ratings.
Do ChatKeyPT or Private Mind have ads?
Neither ChatKeyPT nor Private Mind shows ads.

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