# Time Duration/Add Calculator vs Real PIN

The clearest difference is in-app purchases: Time Duration/Add Calculator at none against Real PIN's 1. Time Duration/Add Calculator also leads on iOS requirement (13.0 vs 18.0). Real PIN's advantage is ads (none vs shown) and update cadence (fortnightly vs every 9 months). On price and device support there is nothing between them.

Both are free to download. Real PIN sells 1 one-off in-app purchase. Time Duration/Add Calculator asks for nothing beyond the download.

Time Duration/Add Calculator ships an update every 9 months, Real PIN fortnightly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Time Duration/Add Calculator | Real PIN |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/time-durationadd-calculator/id1521417824/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 9 months | **Fortnightly** |
| Monetization | Ad-supported | — |
| Size | 17 MB | 6 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kouji Yamauchi](https://appshunter.io/developer/1519365107) | [TAKASHI KOJIMA](https://appshunter.io/developer/6776510628) |

## 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


### Real PIN

[App page](https://appshunter.io/ios/app/real-pin-passcode-keeper/id6808472106)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Real PIN Premium | $2.99 | one-time |


## Frequently asked questions

### Is Time Duration/Add Calculator free?

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

### Is Real PIN free?

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

### Do Time Duration/Add Calculator or Real PIN have ads?

Time Duration/Add Calculator shows ads; Real PIN does not.

### Which is updated more often, Time Duration/Add Calculator or Real PIN?

Time Duration/Add Calculator ships an update every 9 months, and Real PIN fortnightly. Most recently, Time Duration/Add Calculator was updated on November 3, 2026 and Real PIN on October 31, 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.*