EnigmaAI vs Prompt Vector
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EnigmaAI
This app provides access to powerful AI models like ChatGPT and Claude without collecting your personal data. It automatically scrubs sensitive information from your messages and stores conversations securely on your device. Enjoy private AI interactions with advanced features and disappearing chat options.
- Anonymous AI chat access
- Automatic data scrubbing
- On-device encrypted storage
- Multiple AI model integration
- Private AI image generation
- Disappearing chat options
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Ask AI anything: your phone keeps the secret. EnigmaAI puts ChatGPT, Claude, Gemini, Grok, and DeepSeek in one private app. You don't need an account, an email, or a phone number. Open it and start typing. WHY PRIVATE AI MATTERS You ask AI about your health, your money, your contracts, your relationships. On most AI apps, every one of those questions is tied to an account in your name and may be used to train future models. On EnigmaAI, your chats stay on your device and aren't tied to an account. YOUR PERSONAL DETAILS NEVER LEAVE YOUR PHONE • Email addresses, phone numbers, credit card numbers, social security numbers, and IPv4 addresses are replaced with random stand-ins on your device before a message is sent • Photos are stripped of EXIF metadata and GPS location • Blind Routing removes your IP address before a request ever reaches an AI provider NO ACCOUNT NEEDED, NO LOGS, NO CLOUD • Use the free tier or Pro without an account • Chats are encrypted with keys protected by the Secure Enclave and stored only on your device • No cloud sync and no backups on our servers • No conversation logs: message content is never recorded • Our servers process requests in memory only, so message content is never written to disk • App Store privacy label: Data Not Collected THE TOP AI MODELS IN ONE APP • ChatGPT (OpenAI), Claude (Anthropic), Gemini (Google), Grok (xAI), and DeepSeek: switch anytime, even mid-conversation • Web search for up-to-date answers • Send a photo and ask about it • Set the thinking effort and see the model's reasoning • Private image generation with GPT Image and Grok Imagine, saved to an encrypted vault on your device LEAVE NO TRACE • Stealth Mode: the chat lives only in memory and disappears when you close the app • Disappearing Chats: gone 24 hours after the last message • App Lock with Face ID or Touch ID • One tap wipes everything, instantly and permanently BUILT FOR EVERYDAY USE • Folders with their own default instructions • Search your chats by what was said, not just by title • Edit a sent message and send it again • On-device voice dictation • iPhone, iPad, and Mac with Apple silicon FREE TO START Free messages refill every day. Pro unlocks premium models and much higher limits for every model, web search, and image generation. Neither needs an account. Pro renews automatically until you cancel in your Apple Account settings. Built for the paranoid and the practical. Download EnigmaAI and ask what you've never dared to type. EnigmaAI is an independent app and is not affiliated with OpenAI, Anthropic, Google, xAI, or DeepSeek. The AI provider you pick processes your prompts, with those personal details already replaced, to generate a reply. Privacy Policy: https://enigmaai.app/privacy.html Terms of Use: https://enigmaai.app/terms.html
Prompt Vector
Access a curated library of over 2000 expert-crafted AI prompts for professionals. Find prompts tailored to specific industries and job functions, with customizable variables and expected output formats. Integrates with Siri Shortcuts and works offline for seamless use.
- 2000+ expert-crafted AI prompts
- Customizable prompt variables
- Filter by AI tool, industry, or job function
- One-tap copy to clipboard
- Siri Shortcuts integration
- Offline access
- Built-in AI prompt generator
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Prompt Vector gives you instant access to a curated library of high-impact AI prompts — built for professionals who want better results from ChatGPT, Claude, Gemini, Copilot, and more. WHAT YOU GET: - 2000+ expert-crafted prompts across industries like AEC, Software Sales, Marketing, and more - Every prompt includes variables you customize, expected output format, and difficulty rating - Filter by AI tool, industry, job function, or task type to find exactly what you need - One-tap copy to clipboard — paste directly into any AI tool - Siri Shortcuts integration: ask Siri to find a prompt, get a random prompt, or get the Prompt of the Day BUILT FOR PROFESSIONALS: Prompt Vector is not a generic prompt directory. Every prompt is designed for real workflows — strategic planning, data analysis, client communication, negotiation, coaching, and more. Each prompt tells you who it's for, what it solves, and how much time it saves. FEATURES: - Smart search across titles, descriptions, and tags - Generate custom prompts with the built-in AI prompt generator - Favorites and history to track your most-used prompts - Clean, native iOS and Mac experience — no account required, no ads, no tracking - Works offline — your entire prompt library is always available Whether you're prepping for a client call, analyzing data, drafting a proposal, or coaching your team, Prompt Vector puts the right prompt at your fingertips in seconds. AI Prompts. Better Results. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: Prompt Vector at 5.0 against EnigmaAI's 3.5. Prompt Vector also leads on update cadence (every 6 days vs every 2 weeks). EnigmaAI's advantage is ratings volume (13 vs 3) and iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and monetization model 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. EnigmaAI sells 2 in-app purchases, starting at $9.90 per month and Prompt Vector sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
Prompt Vector holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 13 and 3 respectively.
EnigmaAI ships an update every 2 weeks, Prompt Vector every 6 days. The most recent releases landed on November 13, 2026 and November 9, 2026 respectively.
| Parameter | EnigmaAI | Prompt Vector |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (13 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 55.6% of reviews | — |
| Number of ratings | 13 — better | 3 |
| Update frequency | Every 2 weeks | Every 6 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 47 MB | 17 MB |
| Age rating | 17+ | 4+ |
| Developer | Dark Matter Lab | Hen Solutions LLC |
Customer experience
EnigmaAI
Prompt Vector
In-app purchases
EnigmaAI
- pro$9.901 Month
- pro7 Days trial$99.001 Year
Prompt Vector
- PromptVector Premium (Monthly)1 Month trial$4.991 Month
- PromptVector Premium (Annual)1 Month trial$29.991 Year









