# SnapCalc Simple vs Countdown Days

The clearest difference is in-app purchases: SnapCalc Simple at none against Countdown Days's 3. SnapCalc Simple also leads on iOS requirement (13.0 vs 15.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Countdown Days sells 3 in-app purchases, starting at $1.29 per month. SnapCalc Simple asks for nothing beyond the download.

SnapCalc Simple ships an update every 2 months, Countdown Days every 5 weeks. The most recent releases landed on November 5, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | SnapCalc Simple | Countdown Days |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Size | 27 MB | 45 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nabin Timsina](https://appshunter.io/developer/1849213554) | [长宏 侯](https://appshunter.io/developer/1726037103) |

## What reviewers say

### SnapCalc Simple

[App page](https://appshunter.io/ios/app/snapcalc-simple/id6754610686)

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

**In-app purchases:** none


### Countdown Days

[App page](https://appshunter.io/ios/app/countdown-days-events-and-widgets/id6792184671)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro (Monthly) | $1.29 | per month |
| Pro (Yearly) | $9.99 | per year |
| Pro (Lifetime) | $24.99 | one-time |


## Frequently asked questions

### Is SnapCalc Simple free?

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

### Is Countdown Days free?

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

### Do SnapCalc Simple or Countdown Days have ads?

Neither SnapCalc Simple nor Countdown Days shows ads.

### Which is updated more often, SnapCalc Simple or Countdown Days?

SnapCalc Simple ships an update every 2 months, and Countdown Days every 5 weeks. Most recently, SnapCalc Simple was updated on November 5, 2026 and Countdown Days on November 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.*