Comparison

Dimensions AR vs Private LLM

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

Head to head
About

Dimensions AR

Visualize product dimensions in your real-world space using augmented reality. Avoid online shopping mistakes by accurately checking if items fit before purchasing. Simply input dimensions and place a virtual 3D model.

Highlights
  • Augmented Reality visualization
  • Virtual 3D object placement
  • Accurate size checking
  • Pre-purchase product assessment
  • Intuitive user interface
Read full description

Have you ever returned a product you bought online because it was way too small or way too big than you expected? Check the product's size using this AR app before you buy online. This app is very simple and useful. With Augmented Reality, you can check the size by placing a 3D virtual box in the real space. Just enter the product's dimensions and place the 3D virtual box on the desk, the floor, or the wall. Here are some scenarios where the AR app can be useful. - To know which TV screen size fits best on the wall in your living room - To know whether or not the furniture you are buying fits in your room - To know whether or not the cooking equipment fits on your kitchen counter - To know how big the gift for your spouse is that you are buying - To know how big the stuffed animal for your kids is that you are buying - To know how big the speakers you are buying are - To know how big a bag you are buying online - To know how big an outdoor grill you are buying for your deck - To know which size of printer fits in your office and more. Basically, whenever you are buying something online that you don't know the actual size of, check the size using this app.

About

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.

Highlights
  • On-device AI processing
  • Wide selection of open-source LLM models
  • Siri and Shortcuts integration
  • Customizable system prompts
  • Offline functionality
  • Family Sharing support
Features
Read full description

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.

Screenshots

Dimensions AR4 screens
Private LLM4 screens

Verdict

The call

The clearest difference is price: Dimensions AR at Free against Private LLM's $4.99. Dimensions AR also leads on rating (5.0 vs 4.1) and iOS requirement (13.0 vs 17.0). Private LLM's advantage is ads (none vs shown) and update cadence (every 5 weeks vs every 24 months). On 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

CostPrice · In-app purchases · Ads · Monetization

Dimensions AR is free to download; Private LLM costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Dimensions AR holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Private LLM has 750 ratings behind it against 4, so its average is the more settled of the two.

UpkeepUpdate frequency

Dimensions AR ships an update every 24 months, Private LLM every 5 weeks. The most recent releases landed on November 2, 2026 and November 12, 2026 respectively.

Scorecard8 real differences · 3 level
Dimensions AR versus Private LLM: the parameters behind the verdict, then further details
ParameterDimensions ARPrivate LLM
PriceFree — better$4.99
Rating5.0 (4 ratings) — better4.1 (750 ratings)
Positive reviews—48.8% of reviews
Number of ratings4750 — better
Update frequencyEvery 24 monthsEvery 5 weeks — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported — betterPaid
Best chart rank—#9 — better
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS13.0 — better17.0
Further details — not scored
Size6 MB1.3 GB
Age rating4+12+
DeveloperNoriaki MuraoNumen Technologies Limited

Customer experience

Dimensions AR

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Private LLM

All ratings741 ratings
Positive77.2%
Neutral5.5%
Negative17.3%
Written reviews385 reviews
Positive48.8%
Neutral14.0%
Negative37.1%

Bugs and requests

Dimensions AR

Not enough reviews yet to summarise bugs or 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
Show 2 more
  • Allow creating custom prompt presets
  • Integrate with iOS Shortcuts

In-app purchases

None

Dimensions AR

No in-app purchases

None

Private LLM

No in-app purchases

Questions

Is Dimensions AR free?
Dimensions AR is free to download, with no in-app purchases.
Is Private LLM free?
Private LLM costs $4.99, with no in-app purchases.
Which has better reviews, Dimensions AR or Private LLM?
Dimensions AR is rated higher. Dimensions AR averages 5.0 out of 5 from 4 ratings, while Private LLM averages 4.1 from 750 ratings.
Do Dimensions AR or Private LLM have ads?
Dimensions AR shows ads; Private LLM does not.
Which is updated more often, Dimensions AR or Private LLM?
Dimensions AR ships an update every 24 months, and Private LLM every 5 weeks. Most recently, Dimensions AR was updated on November 2, 2026 and Private LLM on November 12, 2026.

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