# Time Duration/Add Calculator vs Date Calculator Plus

The clearest difference is ads: Date Calculator Plus at none against Time Duration/Add Calculator's shown. Date Calculator Plus also leads on update cadence (every 4 months vs every 9 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Time Duration/Add Calculator ships an update every 9 months, Date Calculator Plus every 4 months. Both last shipped on October 13, 2026.

## The numbers

| Metric | Time Duration/Add Calculator | Date Calculator Plus |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 9 months | **Every 4 months** |
| Monetization | Ad-supported | — |
| Size | 17 MB | 36 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kouji Yamauchi](https://appshunter.io/developer/1519365107) | [Putu Angga Risky Raharja](https://appshunter.io/developer/1164107753) |

## What reviewers say

### Time Duration/Add Calculator

[App page](https://appshunter.io/ios/app/time-durationadd-calculator/id1521417824)

Easily calculate elapsed time between two points or determine an end time based on a start time and duration. It also converts time into various units like days, hours, minutes, and seconds.

**Highlights:** Calculate elapsed time from start and end times, Calculate end time from start time and elapsed duration, Display time between start and end dates/times, Convert time into days, hours, minutes, and seconds, Easily enter current time, Calculate time before a given duration

**Features:** macOS Compatibility

**In-app purchases:** none


### Date Calculator Plus

[App page](https://appshunter.io/ios/app/date-calculator-plus/id1546570825)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Time Duration/Add Calculator free?

Time Duration/Add Calculator is free to download, with no in-app purchases.

### Is Date Calculator Plus free?

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

### Do Time Duration/Add Calculator or Date Calculator Plus have ads?

Time Duration/Add Calculator shows ads; Date Calculator Plus does not.

### Which is updated more often, Time Duration/Add Calculator or Date Calculator Plus?

Time Duration/Add Calculator ships an update every 9 months, and Date Calculator Plus every 4 months. Most recently, Time Duration/Add Calculator was updated on October 13, 2026 and Date Calculator Plus 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.*