# Darwin Evolution vs Countdown & Calendar

The clearest difference is in-app purchases: Darwin Evolution at none against Countdown & Calendar's 1. Darwin Evolution also leads on update cadence (every 3 months vs every 65 months) and device support. On price there is nothing between them.

Both are free to download. Countdown & Calendar sells 1 one-off in-app purchase. Darwin Evolution asks for nothing beyond the download.

Darwin Evolution ships an update every 3 months, Countdown & Calendar every 65 months. The most recent releases landed on October 16, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Darwin Evolution | Countdown & Calendar |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 13.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | — |
| Update frequency | **Every 3 months** | Every 65 months |
| Monetization | Free | — |
| Size | 49 MB | 66 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Micronova Srl](https://appshunter.io/developer/1338789037) | [Thieu Khue](https://appshunter.io/developer/1554439862) |

## What reviewers say

### Darwin Evolution

[App page](https://appshunter.io/ios/app/darwin-evolution/id1447052495)

Control your Anselmo Cola pellet stove, thermo-stove, or boiler remotely via smartphone or tablet. Adjust settings, schedule operations, and monitor your appliance's status from anywhere. Offers Bluetooth control for offline use.

**Highlights:** Remote ignition and shutdown, Adjust fan speed, Set ambient temperature, Weekly scheduling (4 on/off per day), Adjust water temperature (thermo/boiler models), Real-time appliance status, Bluetooth offline control

**Features:** macOS Compatibility

**In-app purchases:** none


### Countdown & Calendar

[App page](https://appshunter.io/ios/app/countdown-and-calendar/id1554439860)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Pro | $4.99 | one-time |


## Frequently asked questions

### Is Darwin Evolution free?

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

### Is Countdown & Calendar free?

Countdown & Calendar is free to download, with in-app purchases available.

### Which is updated more often, Darwin Evolution or Countdown & Calendar?

Darwin Evolution ships an update every 3 months, and Countdown & Calendar every 65 months. Most recently, Darwin Evolution was updated on October 16, 2026 and Countdown & Calendar on October 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*