# Kardi Ai vs SleepFactory

The clearest difference is update cadence: SleepFactory at fortnightly against Kardi Ai's every 5 weeks. Kardi Ai's advantage is device support (4 vs 2). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

Kardi Ai ships an update every 5 weeks, SleepFactory fortnightly. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Kardi Ai | SleepFactory |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Size | 55 MB | 124 MB |
| Requires iOS | **15** | 15.1 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [KARDI AI Technologies s.r.o.](https://appshunter.io/developer/1620687200) | [Klinika TES](https://appshunter.io/developer/1794022644) |

## What reviewers say

### Kardi Ai

[App page](https://appshunter.io/ios/app/kardi-ai/id1620687198)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


### SleepFactory

[App page](https://appshunter.io/ios/app/sleepfactory/id6741397244)

**In-app purchases:** none


## Frequently asked questions

### Is Kardi Ai free?

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

### Is SleepFactory free?

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

### Do Kardi Ai or SleepFactory have ads?

Neither Kardi Ai nor SleepFactory shows ads.

### Which is updated more often, Kardi Ai or SleepFactory?

Kardi Ai ships an update every 5 weeks, and SleepFactory fortnightly. Most recently, Kardi Ai was updated on October 30, 2026 and SleepFactory on October 25, 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.*