# ETHERMA° SMART APP vs Chronos app

The clearest difference is ads: ETHERMA° SMART APP at none against Chronos app's shown. ETHERMA° SMART APP also leads on update cadence (every 2 weeks vs every 5 months) and iOS requirement (13.0 vs 17.0). On price, 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.

ETHERMA° SMART APP ships an update every 2 weeks, Chronos app every 5 months. The most recent releases landed on June 11, 2026 and June 5, 2026 respectively.

## The numbers

| Metric | ETHERMA° SMART APP | Chronos app |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 5 months |
| Monetization | — | Ad-supported |
| Size | 40 MB | 6 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ETHERMA Holding GmbH](https://appshunter.io/developer/1606968285) | [Anton Kurinnyi](https://appshunter.io/developer/1668535461) |

## What reviewers say

### ETHERMA° SMART APP

[App page](https://appshunter.io/ios/app/etherma-smart-app/id6477389731)

**Features:** macOS Compatibility

**In-app purchases:** none


### Chronos app

[App page](https://appshunter.io/ios/app/chronos-app/id6733244591)

This app allows precise tracking of past events and future milestones. Customize your timeline with granular views in minutes, hours, or seconds. Enjoy a sleek interface with vibrant animations and personalized themes.

**Highlights:** Precise time tracking, Past event celebration, Future milestone anticipation, Granular time views (seconds, minutes, hours), Customizable countdowns, Light and Dark mode support, Vibrant animations

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ETHERMA° SMART APP free?

ETHERMA° SMART APP is free to download, with no in-app purchases.

### Is Chronos app free?

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

### Do ETHERMA° SMART APP or Chronos app have ads?

Chronos app shows ads; ETHERMA° SMART APP does not.

### Which is updated more often, ETHERMA° SMART APP or Chronos app?

ETHERMA° SMART APP ships an update every 2 weeks, and Chronos app every 5 months. Most recently, ETHERMA° SMART APP was updated on June 11, 2026 and Chronos app on June 5, 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.*