# Sentiens vs HD

The clearest difference is update cadence: Sentiens at every 2 days against HD's every 5 days. HD's advantage is device support (5 vs 2) and iOS requirement (15.0 vs 17.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Sentiens against 5.0 for HD. Both are backed by a comparable volume of ratings — 2 and 3 respectively.

Sentiens ships an update every 2 days, HD every 5 days. The most recent releases landed on October 9, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Sentiens | HD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/sentiens/id6765820679/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/hd-ai-mobile/id6793983393/reviews) |
| Number of ratings | 2 | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 5 days |
| Monetization | Free | Free |
| Size | 145 MB | 29 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac, Apple TV** |
| Age rating | 4+ | 4+ |
| Developer | [BK Kejera](https://appshunter.io/developer/1707608873) | [Michael Hudson](https://appshunter.io/developer/1896612900) |

## What reviewers say

### Sentiens

[App page](https://appshunter.io/ios/app/sentiens/id6765820679)

Create and customize your own private AI companion with distinct personalities, evolving memories, and adaptive behaviors. This offline platform offers deep control over your AI's intelligence and data ownership, running entirely on your device.

**Highlights:** Fully offline AI experience, Create and customize Sentien personalities, Dynamic, evolving memory system, Neural voice customization, Vision intelligence for image understanding, Choice of AI model sizes, Private by design with data ownership

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

**In-app purchases:** none


### HD

[App page](https://appshunter.io/ios/app/hd-ai-mobile/id6793983393)

Connect to local AI servers and interact with large language models, image generation systems, and AI workflows directly on your network. This app provides secure access to your on-premises AI infrastructure.

**Highlights:** Connect to local AI servers, Interact with LLMs, Access image generation systems, Manage AI workflows, Secure network connection

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Sentiens free?

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

### Is HD free?

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

### Which has better reviews, Sentiens or HD?

Sentiens and HD are both rated 5.0 out of 5 on the App Store, from 2 and 3 ratings respectively.

### Do Sentiens or HD have ads?

Neither Sentiens nor HD shows ads.

### Which is updated more often, Sentiens or HD?

Sentiens ships an update every 2 days, and HD every 5 days. Most recently, Sentiens was updated on October 9, 2026 and HD on October 29, 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.*