# Date Calculation Assistant vs Date Calculator

The clearest difference is in-app purchases: Date Calculator at none against Date Calculation Assistant's 2. Date Calculation Assistant's advantage is update cadence (every 5 days vs every 3 months) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Date Calculation Assistant sells 2 in-app purchases, starting at $0.99 per month. Date Calculator asks for nothing beyond the download.

Date Calculation Assistant ships an update every 5 days, Date Calculator every 3 months. The most recent releases landed on October 18, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Date Calculation Assistant | Date Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 months |
| Size | 35 MB | 5 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [玉辉 黄](https://appshunter.io/developer/1852393919) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## What reviewers say

### Date Calculation Assistant

[App page](https://appshunter.io/ios/app/date-calculation-assistant/id6758889725)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $0.99 | per month |
| Yearly Subscription | $5.99 | per year |


### Date Calculator

[App page](https://appshunter.io/ios/app/date-calculator-days-between/id6772265897)

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

**In-app purchases:** none


## Frequently asked questions

### Is Date Calculation Assistant free?

Date Calculation Assistant is free to download, with in-app purchases available.

### Is Date Calculator free?

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

### Do Date Calculation Assistant or Date Calculator have ads?

Neither Date Calculation Assistant nor Date Calculator shows ads.

### Which is updated more often, Date Calculation Assistant or Date Calculator?

Date Calculation Assistant ships an update every 5 days, and Date Calculator every 3 months. Most recently, Date Calculation Assistant was updated on October 18, 2026 and Date Calculator on October 8, 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.*