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

The clearest difference is monetization model: Date & Time Calculator(9 in 1) at free against thinkMargin's paid. Date & Time Calculator(9 in 1) also leads on rating (4.7 vs 4.2) and ads (none vs shown). On price, update cadence, in-app purchases and device support there is nothing between them.

Date & Time Calculator(9 in 1) costs $0.99 and thinkMargin $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Date & Time Calculator(9 in 1) holds the better App Store score, 4.7 against 4.2. That said, the two scores are not equally well evidenced: Date & Time Calculator(9 in 1) has 1.9K ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 96% of Date & Time Calculator(9 in 1)'s written reviews are positive against 83% of thinkMargin's.

Date & Time Calculator(9 in 1) ships an update every 3 months, thinkMargin every 5 months. Both last shipped on October 26, 2026.

## The numbers

| Metric | Date & Time Calculator(9 in 1) | thinkMargin |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | **[4.7 (1.9K ratings)](https://appshunter.io/ios/app/date-and-time-calculator9-in-1/id536930649/reviews)** | [4.2 (5 ratings)](https://appshunter.io/ios/app/thinkmargin/id1042241713/reviews) |
| Number of ratings | **1.9K** | 5 |
| Positive reviews | **95.8% of reviews** | 83.3% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | **Free** | Paid |
| Best chart rank | **#133** | — |
| Size | 3 MB | 63 MB |
| Requires iOS | **10.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Tsopanakis](https://appshunter.io/developer/471022214) | [Ahmed ElSenousi](https://appshunter.io/developer/885807943) |

## 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:** #133 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


### thinkMargin

[App page](https://appshunter.io/ios/app/thinkmargin/id1042241713)

Calculate profit, margin, cost, or selling price with VAT options. This flexible tool adjusts calculations based on your input, allowing you to determine selling price using either margin or profit.

**Highlights:** Profit calculation, Margin calculation, Cost calculation, Selling price calculation, VAT inclusion/exclusion, Flexible input adjustment

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

**In-app purchases:** none


## 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 thinkMargin free?

thinkMargin costs $0.99, with no in-app purchases.

### Which has better reviews, Date & Time Calculator(9 in 1) or thinkMargin?

Date & Time Calculator(9 in 1) is rated higher. Date & Time Calculator(9 in 1) averages 4.7 out of 5 from 1.9K ratings, while thinkMargin averages 4.2 from 5 ratings.

### Do Date & Time Calculator(9 in 1) or thinkMargin have ads?

thinkMargin shows ads; Date & Time Calculator(9 in 1) does not.

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

Date & Time Calculator(9 in 1) ships an update every 3 months, and thinkMargin every 5 months. Most recently, Date & Time Calculator(9 in 1) was updated on October 26, 2026 and thinkMargin on October 26, 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.*