# Sentai vs Open

The clearest difference is update cadence: Open at every 2 weeks against Sentai's every 6 weeks. On price, ads, in-app purchases and device support there is nothing between them.

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

Sentai ships an update every 6 weeks, Open every 2 weeks. The most recent releases landed on September 16, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | Sentai | Open |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/sentai/id1544442335/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 60 MB | 30 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sentai](https://appshunter.io/developer/1544442547) | [Elaros](https://appshunter.io/developer/1544802505) |

## What reviewers say

### Sentai

[App page](https://appshunter.io/ios/app/sentai/id1544442335)

This voice-enabled digital companion offers AI-powered natural conversation to support users in their homes, helping them adhere to daily routines and maintain independence. It also provides a companion app for carers to configure the device, monitor activity, and receive alerts for potential issues.

**Highlights:** AI-powered natural conversation, Routine adherence support, Independence maintenance, Carer configuration, Activity and wellbeing insights, Shopping lists and care notes, Issue-based notifications

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

**In-app purchases:** none


### Open

[App page](https://appshunter.io/ios/app/open-oh/id6502186049)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sentai free?

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

### Is Open free?

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

### Do Sentai or Open have ads?

Neither Sentai nor Open shows ads.

### Which is updated more often, Sentai or Open?

Sentai ships an update every 6 weeks, and Open every 2 weeks. Most recently, Sentai was updated on September 16, 2026 and Open on September 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.*