Private LLM vs Control
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Private LLM
This on-device AI assistant leverages Apple's Foundation Models for private natural language processing. It integrates with your device's apps to manage tasks, provide daily summaries, and generate creative visuals, all without internet access or data collection.
- On-device AI processing
- Integrates with Calendar, Reminders, Health, Maps, Weather
- Personalized Daily Kickstart summaries
- Memory vault for storing and recalling information
- Image generation with Image Playground
- Customizable personality and appearance
- Siri integration for hands-free interaction
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Private LLM: Nucleus is your intelligent, on-device personal assistant powered by Apple’s Foundation Models framework. It combines advanced natural language understanding with the privacy of full on-device processing, ensuring your data never leaves your device. No Internet. No login. No data collection. Seamless Integration Across Your Day Nucleus connects deeply with Calendars, Reminders, Health, Maps, and Weather, helping you stay organized, aware, and productive. • Manage and update reminders and calendar events. • Track health data and view trend charts. • Get directions, routes, and travel times. • Stay informed with live weather updates and daily summaries. Daily Kickstart Each time you open Nucleus, you’re greeted with a personalized Daily Kickstart, a complete snapshot of your day that includes: • Weather conditions and outfit suggestions. • Today’s reminders and upcoming calendar events. • Directions to your destinations. Personal Space Give Nucleus a mind of its own. Ask it to remember anything, a thought, an idea, a task, or a fact and recall it anytime. You can even add documents and later ask questions or recall specific details about them, all while staying within your chat. Your personal memory vault, fully private and on-device. Intelligent Conversations Ask Nucleus anything about your integrated data or general topics. It understands context, allowing follow-up questions that feel natural and continuous. Choose Auto Mode to let Nucleus automatically pick the right tools, or use Manual Mode for precise control. Creativity with Image Playground Bring your ideas to life using Image Playground, generate creative visuals directly within Nucleus. Everything is processed privately and on-device, ensuring speed and security. Personalize Your Experience Make Nucleus yours with visual and behavioral customization. • Change chat bubble colors. • Match your app icon to your theme. • Set custom instructions that shape Nucleus’s personality and response style. Siri Integration Use Siri to interact with Nucleus hands-free. Just say “Hey Nucleus” to access reminders, calendars, health data, or general questions, all processed privately, right on your device. Built for Privacy and Performance: Private LLM: Nucleus runs entirely on your device using Apple’s Foundation Models framework. No cloud, no tracking, no data sharing. Just powerful, personal intelligence built for speed, context, and privacy. Nucleus gives you everything you expect from a next-generation AI assistant, integrated tools, personalized insights, private processing, and an elegant experience designed for the Apple ecosystem.
Control
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Your AI conversations with complete privacy. Control is a free LLM interface that puts you in charge of your AI experience. Chat with lightweight open source language models while keeping your data completely private. These mobile-optimized models offer basic AI assistance with the trade-off of complete privacy and offline functionality - everything runs locally on your device. This is a basic tool. Privacy & Data Protection: All processing happens on your device with no data collection or sharing. Your conversations never leave your phone and no accounts, logins, or cloud storage are required. Works completely offline with zero network dependencies for chat, no tracking or analytics. Your data stays yours and history resets after every session or 24 hours, whichever comes first, ensuring no persistent data storage. Choice: Choose from various open source language models and switch between models instantly to find the perfect AI assistant for your specific needs. Free and open source with no subscriptions or hidden costs.
Screenshots
Verdict
The clearest difference is price: Control at Free against Private LLM's $3.99. Control also leads on update cadence (every 5 days vs fortnightly) and iOS requirement (18.5 vs 26.0). On ads, in-app purchases and device support 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
Control is free to download; Private LLM costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Private LLM ships an update fortnightly, Control every 5 days. The most recent releases landed on September 18, 2026 and October 14, 2026 respectively.
| Parameter | Private LLM | Control |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 4.3 (11 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 11 — better | — |
| Update frequency | Fortnightly | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 18.5 — better |
| Further details — not scored | ||
| Size | 53 MB | 9 MB |
| Age rating | 12+ | 12+ |
| Developer | Parth Antala | Carlos Tarrats |
In-app purchases
Private LLM
No in-app purchases
Control
No in-app purchases









