# Days + Date + Time Calculator vs QRCertCode

The clearest difference is ads: QRCertCode at none against Days + Date + Time Calculator's shown. On price, update cadence, 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.

Days + Date + Time Calculator ships an update every 6 weeks, QRCertCode every 2 months. The most recent releases landed on October 12, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Days + Date + Time Calculator | QRCertCode |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (862 ratings)](https://appshunter.io/ios/app/days-plus-date-plus-time-calculator/id816849128/reviews)** | — |
| Number of ratings | **862** | — |
| Positive reviews | 82.9% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Ad-supported | — |
| Size | 18 MB | 41 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [山 钟](https://appshunter.io/developer/798031313) | [TOLEMAICA SRL](https://appshunter.io/developer/1256514500) |

## What reviewers say

### Days + Date + Time Calculator

[App page](https://appshunter.io/ios/app/days-plus-date-plus-time-calculator/id816849128)

Calculate the duration between two dates and times. This tool helps you find the exact number of days, hours, and minutes between any two points in time.

**Highlights:** Calculate days between dates, Calculate duration between dates and times, Calculate duration between times, Find exact number of days, Find exact number of hours and minutes

**In-app purchases:** none

**What reviewers like**

- 👍 Excellent app
- 👍 Helpful and useful
- 👍 Great variety of fonts and symbols
- 👍 Easy to use
- 👍 Convenient features

**What reviewers complain about**

- 🐛 Excessive advertising
- 🐛 Compatibility issues with updates
- 🔋 High battery consumption
- 🔒 Privacy concerns with ads

**Reported bugs**

- Crashes and freezes
- Fonts not displaying properly
- Syncing issues across devices

**Requested features**

- Add more font options
- Improve interface and navigation
- Provide a premium ad-free version
- Add more language support
- Improve copying and pasting functionality


### QRCertCode

[App page](https://appshunter.io/ios/app/qrcertcode/id6596757367)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Days + Date + Time Calculator free?

Days + Date + Time Calculator is free to download, with no in-app purchases.

### Is QRCertCode free?

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

### Do Days + Date + Time Calculator or QRCertCode have ads?

Days + Date + Time Calculator shows ads; QRCertCode does not.

### Which is updated more often, Days + Date + Time Calculator or QRCertCode?

Days + Date + Time Calculator ships an update every 6 weeks, and QRCertCode every 2 months. Most recently, Days + Date + Time Calculator was updated on October 12, 2026 and QRCertCode on October 4, 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.*