# DaysBetween vs Date Calculation Assistant

The clearest difference is update cadence: Date Calculation Assistant at every 5 days against DaysBetween's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. DaysBetween sells 1 one-off in-app purchase and Date Calculation Assistant sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

DaysBetween ships an update every 3 months, Date Calculation Assistant every 5 days. The most recent releases landed on September 21, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | DaysBetween | Date Calculation Assistant |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Size | 2 MB | 35 MB |
| Requires iOS | 16.7 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dmitrii Sokolov](https://appshunter.io/developer/1871406561) | [玉辉 黄](https://appshunter.io/developer/1852393919) |

## What reviewers say

### DaysBetween

[App page](https://appshunter.io/ios/app/daysbetween/id6758201994)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Version | $4.99 | one-time |


### 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 |


## Frequently asked questions

### Is DaysBetween free?

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

### Is Date Calculation Assistant free?

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

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

Neither DaysBetween nor Date Calculation Assistant shows ads.

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

DaysBetween ships an update every 3 months, and Date Calculation Assistant every 5 days. Most recently, DaysBetween was updated on September 21, 2026 and Date Calculation Assistant on September 13, 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.*