# Silo vs Private AI Models

The clearest difference is in-app purchases: Silo at none against Private AI Models's 3. Silo also leads on ads (none vs shown). Private AI Models's advantage is update cadence (fortnightly vs every 15 months) and iOS requirement (16.4 vs 18.6). On price, rating, ratings volume and device support there is nothing between them.

Both are free to download. Private AI Models sells 3 in-app purchases, starting at $4.99 per month. Silo asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 1.0 for Silo against 1.0 for Private AI Models. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Silo ships an update every 15 months, Private AI Models fortnightly. The most recent releases landed on October 30, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Silo | Private AI Models |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/silo-private-ai-assistant/id6741248135/reviews) | [1.0 (1 ratings)](https://appshunter.io/ios/app/private-ai-models/id6754661513/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 15 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 6 MB | 70 MB |
| Requires iOS | 18.6 | **16.4** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 12+ | 12+ |
| Developer | [Bixby Apps, LLC](https://appshunter.io/developer/436419517) | [Nelson Lai](https://appshunter.io/developer/1477911199) |

## What reviewers say

### Silo

[App page](https://appshunter.io/ios/app/silo-private-ai-assistant/id6741248135)

This app allows you to run advanced AI language models directly on your iPhone without needing an internet connection or subscriptions. It prioritizes user privacy by keeping all conversations and data solely on your device. You can download and switch between various open-source models, including uncensored options.

**Highlights:** Runs AI models locally on iPhone, No internet connection required, Zero data collection or server requests, Supports multiple open-source LLMs, Import custom models from Hugging Face, Uncensored model output, Local chat history management

**In-app purchases:** none


### Private AI Models

[App page](https://appshunter.io/ios/app/private-ai-models/id6754661513)

Engage in AI conversations locally on your device without needing an internet connection or cloud servers. This app allows you to download and run various open AI models, keeping your data private and secure. Chat with documents, understand images, and utilize pre-built assistants for diverse tasks.

**Highlights:** Runs AI models entirely on your phone, Completely offline functionality, Chat with your documents (PDF, text, Markdown), Image understanding and analysis, Step-by-step reasoning visualization, Pre-built AI assistants, On-device text-to-speech

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $4.99 | per month |
| Pro Yearly | $19.99 | per year |
| Pro Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is Silo free?

Silo is free to download, with no in-app purchases.

### Is Private AI Models free?

Private AI Models is free to download, with in-app purchases available.

### Which has better reviews, Silo or Private AI Models?

Silo and Private AI Models are both rated 1.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Silo or Private AI Models have ads?

Private AI Models shows ads; Silo does not.

### Which is updated more often, Silo or Private AI Models?

Silo ships an update every 15 months, and Private AI Models fortnightly. Most recently, Silo was updated on October 30, 2026 and Private AI Models on November 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*