Private LLM vs UNTIL
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Private LLM
This AI assistant offers advanced on-device capabilities for productivity and creativity, ensuring your interactions remain confidential and offline. It supports a wide range of open-source LLM models and integrates seamlessly with Siri and Shortcuts.
- On-device AI processing
- Wide selection of open-source LLM models
- Siri and Shortcuts integration
- Customizable system prompts
- Offline functionality
- Family Sharing support
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Discover the Ultimate Privacy-Focused AI Assistant on iOS: Private LLM Unlock a new realm of productivity and creativity on your iPhone and iPad with Private LLM, the premier AI assistant designed with your privacy in mind. Available for a one-time purchase, it offers a range of AI capabilities without needing a subscription. Experience advanced on-device AI that keeps your interactions confidential and offline. Why Private LLM is Your Go-To AI Companion: - Exclusive AI Model Selection: Choose from a diverse set of open-source LLM models optimized for performance and perplexity on iOS with state of the art OmniQuant quantization: including models from Llama 2, Llama 3.2, Llama 3.1, Google Gemma 2, Gemma 3, Microsoft Phi-3, Mistral 7B, Qwen 2.5, Qwen 3, StableLM 3B and many more. Whether you need help with creative brainstorming, coding, or daily questions, customize your AI experience to meet your unique needs. - Integrated with Siri & Shortcuts: Enhance your AI interactions with Siri commands and customizable Shortcuts. Private LLM seamlessly fits within your Apple ecosystem, making your digital assistant more accessible. - Customizable Interactions: Tailor your AI's responses and interactions with customizable system prompts to match your preferences and needs. - Uncompromised Privacy and Security: With Private LLM, your conversations stay confidential and on your device. Our advanced on-device AI performs robust computing without risking data compromise or needing an internet connection. - Family Sharing & Offline Capabilities: Benefit from a one-time purchase that includes Family Sharing. Download models as needed and enjoy the full functionality of your AI assistant, even without internet access. Supported LLM Model families: - DeepSeek R1 Distill based models - Phi 4 based models - Qwen 3 based models (Qwen3-4B-Instruct-2507) - Qwen 2.5 based models (0.5B, 1.5B, 3B and 7B) - Qwen 2.5 Coder based Models (0.5B, 1.5B, 3B, 7B and 14B) - Llama 3.1 8B based models - Llama 3.2 1B and 3B based models - Google Gemma 2 2B and 9B based models - Google Gemma 3 1B based models - Mistral 7B based models - Yi 6B based models For a full list of supported models, including detailed specifications, please visit privatellm.app/models. Private LLM is not just a chatbot; it's a comprehensive AI companion designed to respect your privacy while providing versatile, on-demand assistance. Whether you're enhancing your creative writing, tackling complex programming challenges, or just seeking answers, Private LLM adapts to meet your needs while keeping your data secure. Start your journey with Private LLM today and elevate your productivity and creative projects with the most private AI assistant for iOS devices. Private LLM is a better alternative to generic llama.cpp and MLX wrappers apps like Enchanted, Ollama, LLM Farm, LM Studio, Locally AI, RecurseChat, etc on three fronts: 1. Private LLM uses a faster and highly-optimized mlc-llm based inference engine. 2. Models in Private LLM are quantized using the state of the art quantization algorithms like OmniQuant, while competing apps use naive round-to-nearest quantization. 3. Private LLM is a fully native app built using C++, Metal and Swift with deep integrations with iOS and iPadOS, while many of the competing apps are bloated and non-native Electron or Flutter based apps. Please note that Private LLM only supports inference with text based LLMs. Model support varies by device capabilities.
UNTIL
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Not everything you save needs to stay forever. UNTIL is your iPhone’s temporary memory: a fast, private place for the things you need right now—and an easy way to let them go when you no longer do. Where you parked. A Wi-Fi code. A ticket. A measurement. A receipt. A link to open later. Save it in seconds, then choose how long you want to keep it: one hour, until tonight, three days, one month, or any date and time you choose. Then get back to what you were doing. UNTIL will keep track of time for you. WITH UNTIL, YOU CAN: • Capture photos, text, links, QR codes, barcodes, PDFs, and documents • Save content directly from the Share menu in other apps • See at a glance what will expire next • Check upcoming expirations from widgets and your Lock Screen • Receive a reminder before something expires • Extend, keep, copy, or share anything you have saved • Recover expired items for up to 24 hours LESS CLUTTER. MORE CONTROL. Traditional apps are designed to keep everything. UNTIL is designed to forget at exactly the right time. When something expires, it leaves your active memory. Changed your mind? You still have 24 hours to recover it. After that, UNTIL removes it at the next opportunity allowed by iOS. TRULY PRIVATE Your content stays on your iPhone. No account. No cloud. No uploads. No advertising, analytics, or tracking. You can also protect access with Face ID, Touch ID, or your device passcode—and decide whether content previews appear in your widgets. Stop turning every piece of information into something permanent. Download UNTIL and give everything exactly the time it needs.
Screenshots
Verdict
The clearest difference is price: UNTIL at Free against Private LLM's $4.99. UNTIL also leads on update cadence (every 2 days vs every 5 weeks). Private LLM's advantage is chart position (#10 vs unranked) and device support (3 vs 1). On ads, in-app purchases 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
UNTIL is free to download; Private LLM costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Private LLM ships an update every 5 weeks, UNTIL every 2 days. The most recent releases landed on November 12, 2026 and November 10, 2026 respectively.
| Parameter | Private LLM | UNTIL |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 4.1 (750 ratings) — better | — |
| Positive reviews | 48.8% of reviews | — |
| Number of ratings | 750 — better | — |
| Update frequency | Every 5 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Best chart rank | #10 — better | — |
| Devices | iPhone, iPad, Mac — better | iPhone |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 1.3 GB | 6 MB |
| Age rating | 12+ | 4+ |
| Developer | Numen Technologies Limited | DAVIDE MORI |
Bugs and requests
Private LLM
Reported bugs
4 issues- Crashes when downloading larger models
- Shortcuts integration issues
- Conversations get cleared when switching away
- Doesn't work with accessibility features
Requested features
7 requests- Allow importing own models
- Add chat history and export options
- Implement voice to chat and RAG features
- Add support for larger models on Mac
- Provide more information about each model
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- Allow creating custom prompt presets
- Integrate with iOS Shortcuts
UNTIL
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Private LLM
No in-app purchases
UNTIL
No in-app purchases
Questions
Is Private LLM free?
Is UNTIL free?
Do Private LLM or UNTIL have ads?
Which is updated more often, Private LLM or UNTIL?
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