# DateDiff vs Date Time Calculator

The clearest difference is in-app purchases: DateDiff at none against Date Time Calculator's 3. DateDiff also leads on iOS requirement (9.0 vs 17.6). Date Time Calculator's advantage is ads (none vs shown) and update cadence (fortnightly vs every 5 weeks). On price, rating, ratings volume and device support there is nothing between them.

Both are free to download. Date Time Calculator sells 3 one-off in-app purchases. DateDiff asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for DateDiff against 5.0 for Date Time Calculator. Both are backed by a comparable volume of ratings — 4 and 7 respectively.

DateDiff ships an update every 5 weeks, Date Time Calculator fortnightly. The most recent releases landed on September 16, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | DateDiff | Date Time Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/datediff/id1164312493/reviews) | [5.0 (7 ratings)](https://appshunter.io/ios/app/date-time-calculator-tickr/id6469073541/reviews) |
| Number of ratings | 4 | **7** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Monetization | Ad-supported | **Free** |
| Size | 52 MB | 5 MB |
| Requires iOS | **9.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [David Vives](https://appshunter.io/developer/1164312492) | [S Ravi Shankar](https://appshunter.io/developer/516903373) |

## What reviewers say

### DateDiff

[App page](https://appshunter.io/ios/app/datediff/id1164312493)

Calculate the duration between two dates, with options to include or exclude weekends. It can also determine an end date based on a start date and a duration, or function as a countdown timer from today to a specific event.

**Highlights:** Calculate days between two dates, Include or exclude weekends, Calculate end date from start date and duration, Countdown timer from today, Pin start date as today

**In-app purchases:** none


### Date Time Calculator

[App page](https://appshunter.io/ios/app/date-time-calculator-tickr/id6469073541)

Calculate the precise difference between two dates and times, down to the millisecond. Offers detailed breakdowns including days, hours, minutes, and seconds, with options to view weekdays or weekends only. Share your results easily with a clean, adaptable interface.

**Highlights:** Intuitive date and time setting, Calculate days, months, years, Detailed hour, minute, second, millisecond counts, Weekday and weekend specific calculations, One-tap result sharing, Light and dark mode options

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip - Support Date Diff | $0.99 | one-time |
| Medium Tip - Support Date Diff | $2.99 | one-time |
| Big Tip - Support Date Diff | $4.99 | one-time |


## Frequently asked questions

### Is DateDiff free?

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

### Is Date Time Calculator free?

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

### Which has better reviews, DateDiff or Date Time Calculator?

DateDiff and Date Time Calculator are both rated 5.0 out of 5 on the App Store, from 4 and 7 ratings respectively.

### Do DateDiff or Date Time Calculator have ads?

DateDiff shows ads; Date Time Calculator does not.

### Which is updated more often, DateDiff or Date Time Calculator?

DateDiff ships an update every 5 weeks, and Date Time Calculator fortnightly. Most recently, DateDiff was updated on September 16, 2026 and Date Time Calculator on September 18, 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.*