# Days Calcurtor vs Days Counter (Countdown Days)

The clearest difference is in-app purchases: Days Calcurtor at none against Days Counter (Countdown Days)'s 1. Days Calcurtor also leads on ads (none vs shown) and iOS requirement (8.0 vs 13.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Days Counter (Countdown Days) sells 1 one-off in-app purchase. Days Calcurtor asks for nothing beyond the download.

Days Calcurtor ships an update every 2 months, Days Counter (Countdown Days) every 5 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Days Calcurtor | Days Counter (Countdown Days) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Size | 0 MB | 31 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [愉 蔡](https://appshunter.io/developer/436583921) | [庆鸿 林](https://appshunter.io/developer/1558629938) |

## What reviewers say

### Days Calcurtor

[App page](https://appshunter.io/ios/app/days-calcurtor/id954928923)

**Features:** macOS Compatibility

**In-app purchases:** none


### Days Counter (Countdown Days)

[App page](https://appshunter.io/ios/app/days-counter-countdown-days/id1587592197)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Membership | $9.99 | one-time |


## Frequently asked questions

### Is Days Calcurtor free?

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

### Is Days Counter (Countdown Days) free?

Days Counter (Countdown Days) is free to download, with in-app purchases available.

### Do Days Calcurtor or Days Counter (Countdown Days) have ads?

Days Counter (Countdown Days) shows ads; Days Calcurtor does not.

### Which is updated more often, Days Calcurtor or Days Counter (Countdown Days)?

Days Calcurtor ships an update every 2 months, and Days Counter (Countdown Days) every 5 weeks. Most recently, Days Calcurtor was updated on November 1, 2026 and Days Counter (Countdown Days) on November 3, 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.*