# Date & Time Calculator(9 in 1) vs Presentation Remote Controller

The clearest difference is review sentiment: Date & Time Calculator(9 in 1) at 96% against Presentation Remote Controller's 0%. Date & Time Calculator(9 in 1) also leads on in-app purchases (none vs 1) and chart position (#147 vs unranked). Presentation Remote Controller's advantage is update cadence (every 2 weeks vs every 3 months). On price, ads and device support there is nothing between them.

Date & Time Calculator(9 in 1) costs $0.99 and Presentation Remote Controller $0.99 up front. Presentation Remote Controller sells 1 in-app purchase, starting at $0.99 per month. Date & Time Calculator(9 in 1) asks for nothing beyond the download.

Date & Time Calculator(9 in 1) ships an update every 3 months, Presentation Remote Controller every 2 weeks. The most recent releases landed on September 24, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Date & Time Calculator(9 in 1) | Presentation Remote Controller |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | **[4.7 (1.9K ratings)](https://appshunter.io/ios/app/date-and-time-calculator9-in-1/id536930649/reviews)** | — |
| Number of ratings | **1.9K** | — |
| Positive reviews | **95.8% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | **Free** | Paid |
| Best chart rank | **#147** | — |
| Size | 3 MB | 2 MB |
| Requires iOS | **10.0** | 26.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Tsopanakis](https://appshunter.io/developer/471022214) | [kobunachou ozawa](https://appshunter.io/developer/1071744258) |

## What reviewers say

### Date & Time Calculator(9 in 1)

[App page](https://appshunter.io/ios/app/date-and-time-calculator9-in-1/id536930649)

**Currently charting:** #147 Top Paid · Business (US App Store)

This app offers a comprehensive suite of tools for calculating and manipulating dates and times. It can determine time differences, calculate workdays, add or subtract time intervals, and convert between various time units. It also includes features for date ranging, time zone conversions, age calculation, and even a unique time travel function.

**Highlights:** Time difference calculation, Workday calculation (excluding weekends), Add/subtract time (years to seconds), Multiply/divide time, Time unit conversion, Date ranging, Time zone conversion, Age calculation

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

**In-app purchases:** none


### Presentation Remote Controller

[App page](https://appshunter.io/ios/app/presentation-remote-controller/id1363033674)

Control photo and PDF slides remotely over the internet without Bluetooth pairing. Easily share a unique keyword to operate another device, turning it into a projector.

**Highlights:** Internet-based remote control, No Bluetooth pairing required, Control any device with a keyword, Turn devices into projectors, Navigate photo and PDF slides

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| A control keyword will be provided. | $0.99 | per month |


## Frequently asked questions

### Is Date & Time Calculator(9 in 1) free?

Date & Time Calculator(9 in 1) costs $0.99, with no in-app purchases.

### Is Presentation Remote Controller free?

Presentation Remote Controller costs $0.99, and also offers in-app purchases.

### Do Date & Time Calculator(9 in 1) or Presentation Remote Controller have ads?

Neither Date & Time Calculator(9 in 1) nor Presentation Remote Controller shows ads.

### Which is updated more often, Date & Time Calculator(9 in 1) or Presentation Remote Controller?

Date & Time Calculator(9 in 1) ships an update every 3 months, and Presentation Remote Controller every 2 weeks. Most recently, Date & Time Calculator(9 in 1) was updated on September 24, 2026 and Presentation Remote Controller on September 23, 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.*