# DuvarX vs KRONO

The clearest difference is update cadence: KRONO at every 9 days against DuvarX's every 2 months. 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.

DuvarX ships an update every 2 months, KRONO every 9 days. The most recent releases landed on October 5, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | DuvarX | KRONO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/krono/id6766227609/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | — | Free |
| Size | 60 MB | 92 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SENKRON BILGISAYAR OTOM LTD.](https://appshunter.io/developer/498226578) | [umit yasar akkaya](https://appshunter.io/developer/1891786494) |

## What reviewers say

### DuvarX

[App page](https://appshunter.io/ios/app/duvarx/id1617039193)

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

**In-app purchases:** none


### KRONO

[App page](https://appshunter.io/ios/app/krono/id6766227609)

Optimize your sleep with this app designed for cabin crew. Enter your flight number to get a personalized sleep plan, calculate time zone shifts, and receive guidance on when to sleep and wake during layovers. Includes sleep meditations and breathing exercises to combat fatigue.

**Highlights:** Flight number lookup, Jetlag calculation, Personalized sleep plans, Layover sleep guidance, Sleep meditations, Breathing exercises, Flight history

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

**In-app purchases:** none


## Frequently asked questions

### Is DuvarX free?

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

### Is KRONO free?

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

### Do DuvarX or KRONO have ads?

Neither DuvarX nor KRONO shows ads.

### Which is updated more often, DuvarX or KRONO?

DuvarX ships an update every 2 months, and KRONO every 9 days. Most recently, DuvarX was updated on October 5, 2026 and KRONO on October 10, 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.*