# Date.Time Calculator vs Simple Date Calculator

The clearest difference is update cadence: Simple Date Calculator at every 2 months against Date.Time Calculator's every 5 months. Date.Time Calculator's advantage is iOS requirement (15.6 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Date.Time Calculator costs $0.99 and Simple Date Calculator $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Date.Time Calculator ships an update every 5 months, Simple Date Calculator every 2 months. Both last shipped on October 13, 2026.

## The numbers

| Metric | Date.Time Calculator | Simple Date Calculator |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 1 MB | 1 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Noriaki HASHIBA](https://appshunter.io/developer/978336077) | [Zhiqi Pan](https://appshunter.io/developer/1893386703) |

## What reviewers say

### Date.Time Calculator

[App page](https://appshunter.io/ios/app/datetime-calculator/id978336078)

Calculate date and time differences, intervals, and perform unit conversions with a pure calculator interface. Useful for determining future or past dates, calculating total time for multiple events, and converting between various time units and POSIX time.

**Highlights:** Date and time point calculations, Time interval calculations, Unit conversion of time, POSIX time interconversion, Time zone mutual conversion, Arithmetic operations with time

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

**In-app purchases:** none


### Simple Date Calculator

[App page](https://appshunter.io/ios/app/simple-date-calculator/id6762223333)

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

**In-app purchases:** none


## Frequently asked questions

### Is Date.Time Calculator free?

Date.Time Calculator costs $0.99, with no in-app purchases.

### Is Simple Date Calculator free?

Simple Date Calculator costs $0.99, with no in-app purchases.

### Do Date.Time Calculator or Simple Date Calculator have ads?

Neither Date.Time Calculator nor Simple Date Calculator shows ads.

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

Date.Time Calculator ships an update every 5 months, and Simple Date Calculator every 2 months. Most recently, Date.Time Calculator was updated on October 13, 2026 and Simple Date Calculator on October 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.*