3sparks Chat vs Privacy AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
3sparks Chat
Connect to local and cloud AI models for enhanced conversations. Features include image and file support, web content integration, and a home screen widget for quick chat initiation. An AI keyboard extension allows for on-the-fly text refinement in any application.
- Connect to local and cloud AI models
- Image and file support for enhanced chats
- Web content reader integration
- Home screen widget for instant chat
- Share extension for sending content
- AI Keyboard Extension for text refinement
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Chat smarter with 3sparks Chat – your personal LLM client for local and cloud models. Connect to your favorite AI models, whether they’re running on your own machine or through cloud services: • Local models like LM Studio, Ollama, AnythingLLM, OpenWebUI (Mac, PC, or Linux) • Cloud-based APIs like OpenAI, Mistral, Gemini and others Now with powerful new tools: • Image & file support – Upload images (for vision-capable models) or text files (supported by all models) to enhance your chats. • Web content reader – Fetch and include webpage content in your chats using Jina Reader • Home screen widget – Start a new chat instantly by snapping a photo, uploading an image, pasting clipboard text, or starting blank • Share extension – Send text or links from any app into 3S Chat with a tap Plus, the built-in AI Keyboard Extension lets you rephrase and fine-tune your writing in any app like iMessage, WhatsApp, and email: • Customizable prompts for instant rewriting • Personalized tone and style settings • No forced cloud storage – your data, your choice 3S Chat is optimized for iOS, iPadOS and VisionOS, so you can enjoy a seamless experience across your iPhone, iPad, and Apple Vision Pro.
Privacy AI
This AI toolkit offers a comprehensive suite of tools for local and cloud-based models, including language, speech, and image processing. It enables users to chat, run agents, transcribe meetings, and generate images with over 60 integrated functions. Local model features operate entirely offline, enhancing privacy and accessibility.
- Local and cloud AI model integration
- AI agent with goal-driven planning
- Speech recognition and text-to-speech
- On-device image generation
- Meeting transcription and summarization
- AI-powered writing and editing tools
- Document scanning and conversion
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Privacy AI is an all-in-one AI toolkit for every kind of model: local language models (GGUF, MLX, Core AI), speech recognition, text-to-speech and image models, Apple's own models, and the major cloud providers. Chat, run agents, transcribe meetings and create images with 60+ tools. Local models work fully offline. Novel Writer - Import a novel and recover its chapters, characters and open threads - Rewrite from any chapter, translate it, or start a new story in its world - Draft novels and short stories Made for iPhone Duo and iPad - Lists beside their details, and two windows in Split View - Meetings: the live transcript on top, your notes below, split on the fold - Doc Scanner, Reader and AI edits show the original beside the result Meetings - On-device transcripts of meetings and lectures, with speaker labels - Minutes, lecture notes or your own summaries, linked to the moments they quote - Lock Screen controls; export SRT, VTT or Markdown Games - Adventure: a fantasy campaign with an AI party and narrator - Werewolf: a social deduction table of AI players Create Images on Your Device - FLUX.2 Klein and Stable Diffusion models, free with no API key - Import your own fine-tuned models Run Models Locally or in the Cloud - On-device GGUF and MLX models, with vision and tool-calling - Use models in place from any folder or external drive - Apple's on-device and Private Cloud Compute models, with no account or API key - Connect to OpenAI, Claude, Gemini, DeepSeek, or any OpenAI-compatible server Agent - Give it a goal: it plans, calls tools and delivers a written report - Teach it with Skills: folders of instructions and scripts Chat - Smart Chat routes each message by complexity and keeps sensitive text local System Keyboard - Dictate, rewrite, translate and proofread text in any app - Types in 11 languages with Pinyin, Japanese and Korean input Mini Apps - Doc Scanner: PDFs, photos and scans to clean Markdown, tables intact - Email Assistant: triage any IMAP inbox on device - Knowledge Wiki: cited answers from your own documents - LLM Council: ask several models at once and get one answer - Topic Briefing: dated, sourced briefs on topics you follow Tools and Connectors - 60+ built-in tools: web and paper search, calendar, code and more - Google Drive, MCP with a marketplace, Siri and Shortcuts Voice - Text to Audio: documents read aloud by on-device voices - Voice Clone: a voice from a short recording or a description Files and Accessibility - Convert PDFs, Office files, e-books, archives, emails and media to Markdown, with OCR - VoiceOver throughout, including both games - View Assistant: point the camera and hear what is in front of you Free to Use. No Ads. Local model features are free, including the AI keyboard, 60+ tools, games and on-device image generation. Cloud API models, Google Drive and the MCP marketplace need a subscription. Privacy by Design Privacy AI runs on-device. No backend servers. No accounts. No data collection. Every API request is visible in the Protocol Inspector. Terms of Use: https://privacyai.acmeup.com/docs/policy/tos.html Privacy Policy: https://privacyai.acmeup.com/docs/policy/privacy.html
Screenshots
Verdict
The clearest difference is price: Privacy AI at Free against 3sparks Chat's $5.99. Privacy AI also leads on rating (4.8 vs 4.2) and review sentiment (92% vs 69%). 3sparks Chat's advantage is in-app purchases (none vs 3) and chart position (#199 vs unranked). On ratings volume, update cadence, ads 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
Privacy AI is free to download; 3sparks Chat costs $5.99 up front. Privacy AI sells 3 in-app purchases, starting at $3.99 per 7 days. 3sparks Chat asks for nothing beyond the download.
Privacy AI holds the better App Store score, 4.8 against 4.2. Both are backed by a comparable volume of ratings — 29 and 21 respectively. Written reviews point the same way: 69% of 3sparks Chat's written reviews are positive against 92% of Privacy AI's.
3sparks Chat ships an update fortnightly, Privacy AI weekly. Both last shipped on November 8, 2026.
| Parameter | 3sparks Chat | Privacy AI |
|---|---|---|
| Price | $5.99 | Free — better |
| Rating | 4.2 (29 ratings) | 4.8 (21 ratings) — better |
| Positive reviews | 69.2% of reviews | 92.3% of reviews — better |
| Number of ratings | 29 — better | 21 |
| Update frequency | Fortnightly | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Freemium — better |
| Best chart rank | #199 — better | — |
| Devices | iPhone, iPad, Apple Watch, Vision Pro — better | iPhone, iPad |
| Requires iOS | 18.6 | 18.0 — better |
| Further details — not scored | ||
| Size | 38 MB | 3.5 GB |
| Age rating | 4+ | 17+ |
| Developer | 3sparks Labs LLC | AcmeUp Inc. |
Customer experience
3sparks Chat
Privacy AI
Bugs and requests
3sparks Chat
Reported bugs
9 issues- App freezes and locks up during chats
- Updates break functionality
- LLM stops responding after a few messages
- Chat history stops loading
- Timeouts make it unusable
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- Code blocks not shown in reply
- Garbled responses from certain models
- App freezes when clicking on a chat
- Cannot connect to external servers that use the http protocol
Requested features
15 requests- German language and keyboard layout
- Audio input for prompting
- Set default per connection (token limit, etc.)
- Enable Search grounding for Gemini models
- iOS Live Activity for running queries
Show 10 moreShow fewer
- Option to provide local PDF files
- Drag and drop of files into chat
- Backgrounding while streaming responses
- Support all modalities (image & video input/output)
- Set default instructions, skip setup, choose default model
- Lock in default settings (temperature, context window, streaming mode)
- RAG and web search
- Live camera OCR and image generation
- Fix code block display
- Support http protocol for connections
Privacy AI
Not enough reviews yet to summarise bugs or requests.
In-app purchases
3sparks Chat
No in-app purchases
Privacy AI
- Weekly Pro Plan$3.997 Days
- Monthly Pro Plan$9.991 Month
- Yearly Pro Plan$99.991 Year









