# Silo vs Kai

The clearest difference is in-app purchases: Kai at none against Silo's 7. Kai also leads on update cadence (every 3 days vs every 2 months) and iOS requirement (15.3 vs 26.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Silo sells 7 in-app purchases, starting at $10.00 per month. Kai asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Silo against 5.0 for Kai. Both are backed by a comparable volume of ratings — 3 and 4 respectively.

Silo ships an update every 2 months, Kai every 3 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Silo | Kai |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/silo-control-what-ai-knows/id6748108317/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/kai-ai/id6758148023/reviews) |
| Number of ratings | 3 | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Freemium | **Free** |
| Size | 175 MB | 127 MB |
| Requires iOS | 26.0 | **15.3** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [One Silo, Inc](https://appshunter.io/developer/1797689699) | [Simon Schubert](https://appshunter.io/developer/1219649975) |

## What reviewers say

### Silo

[App page](https://appshunter.io/ios/app/silo-control-what-ai-knows/id6748108317)

Manage your AI interactions and data privacy. This app acts as a control layer, ensuring your information is secure and portable across different AI models. It allows you to control what AI knows about you, offering a private and auditable experience.

**Highlights:** Cross-model memory portability, User-owned encrypted data, PII scrubbing, Audit trail of AI interactions, Service integrations (Google, Dropbox, Plaid), On-device private AI assistance

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Silo Plus Monthly | $10.00 | per month |
| Silo Pro Monthly | $20.00 | per month |
| Silo Plus Monthly | $20.00 | per month |
| Silo Plus Yearly | $100.00 | per year |
| Silo Pro Yearly | $200.00 | per year |
| Silo Plus Yearly | $200.00 | per year |
| Silo Pro Monthly | $200.00 | per month |


### Kai

[App page](https://appshunter.io/ios/app/kai-ai/id6758148023)

This open-source AI companion offers fast, simple, and private chat experiences powered by models like Llama and Gemini. It's designed for quick answers, brainstorming, writing, and learning with a minimalist interface.

**Highlights:** Blazing fast AI responses, Minimalist and intuitive interface, Open-source and transparent code, Choice of AI models (Llama, Gemini), Context-aware multi-turn conversations, Privacy-focused, no user tracking

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Silo free?

Silo is free to download, with in-app purchases available.

### Is Kai free?

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

### Which has better reviews, Silo or Kai?

Silo and Kai are both rated 5.0 out of 5 on the App Store, from 3 and 4 ratings respectively.

### Do Silo or Kai have ads?

Neither Silo nor Kai shows ads.

### Which is updated more often, Silo or Kai?

Silo ships an update every 2 months, and Kai every 3 days. Most recently, Silo was updated on October 28, 2026 and Kai on October 24, 2026.

---

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