# Date Calculator, Days Calc vs QCInspec

The clearest difference is in-app purchases: QCInspec at none against Date Calculator, Days Calc's 1. QCInspec also leads on iOS requirement (13.0 vs 16.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Date Calculator, Days Calc sells 1 one-off in-app purchase. QCInspec asks for nothing beyond the download.

Date Calculator, Days Calc ships an update every 4 months, QCInspec every 3 months. The most recent releases landed on November 3, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Date Calculator, Days Calc | QCInspec |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (131 ratings)](https://appshunter.io/ios/app/date-calculator-days-calc/id1582411955/reviews)** | — |
| Number of ratings | **131** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | Free with in-app purchases | — |
| Size | 1 MB | 29 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Phan Nhat Đang](https://appshunter.io/developer/1437390098) | [Eduardo Pino](https://appshunter.io/developer/1426008234) |

## What reviewers say

### Date Calculator, Days Calc

[App page](https://appshunter.io/ios/app/date-calculator-days-calc/id1582411955)

Easily solve date math problems with multiple calculation options. This intuitive app helps you find the difference between dates, add or subtract days, and calculate workdays. It's simple and user-friendly for all your date-related needs.

**Highlights:** Days Between Two Dates, Add to/Subtract from a Date, Workdays Calculator, Add/Subtract Workdays, Intuitive and Simple Interface

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock all features | $3.99 | one-time |


### QCInspec

[App page](https://appshunter.io/ios/app/qcinspec/id6444287613)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Date Calculator, Days Calc free?

Date Calculator, Days Calc is free to download, with in-app purchases available.

### Is QCInspec free?

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

### Do Date Calculator, Days Calc or QCInspec have ads?

Neither Date Calculator, Days Calc nor QCInspec shows ads.

### Which is updated more often, Date Calculator, Days Calc or QCInspec?

Date Calculator, Days Calc ships an update every 4 months, and QCInspec every 3 months. Most recently, Date Calculator, Days Calc was updated on November 3, 2026 and QCInspec on October 8, 2026.

---

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