Date & Time Calculator(9 in 1) vs thinkMargin
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Date & Time Calculator(9 in 1)
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.
- 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
Read full descriptionHide full description
Date & Time Calculator (9 in 1) is the perfect tool to work with time. It is by far the best and most accurate date and time calculator available for iOS! • TIME DIFFERENCE The Time Difference Calculator works out the difference between two periods of time. How long have you been at work today? - So type in: "17:30 - 7:45 =" and you get: 09:45 (9 hours and 45 minutes). • WORK DAYS Calculate work days between two calendar days. Exclude weekends and find out how many week days are left. • ADD/SUBTRACT TIME You can add or subtract time expressions defined in years, months, days, hours, minutes AND seconds • MULTIPLY/DIVIDE TIME You can multiply/divide time expressions defined in years, months, days, hours, minutes AND seconds • TIME CONVERTER Use this time converter to convert instantly between seconds, minutes, hours, days and years. • DATE RANGER What date is 10 days from now, or 5 weeks from now? With Date Ranger you can quickly determine the new date given a start date, and a date range in days, weeks, months, or years to add or subtract. • TIME ZONES Provides time zone conversions taking into account local time zone and accepts present, past or future dates. • AGE CALCULATOR Age Calculator simply shows your age (years old, months and days). • TIME TRAVEL Time Travel calculates the time left on your trip given total distance remaining and current average speed.
thinkMargin
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.
- Profit calculation
- Margin calculation
- Cost calculation
- Selling price calculation
- VAT inclusion/exclusion
- Flexible input adjustment
Read full descriptionHide full description
Calculate your profit, margin, cost or selling price (excl. or incl. VAT) with extreme flexibility, all you have to do is flip the tabs accordingly and the app is smart enough to adjust to your choices e.g you could use either margin or profit to calculate your selling price just flip the tabs
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Date & Time Calculator(9 in 1) | thinkMargin |
|---|---|---|
| Price | $0.99 | $0.99 |
| Rating | 4.7 (1.9K ratings) — better | 4.2 (5 ratings) |
| Positive reviews | 95.8% of reviews — better | 83.3% of reviews |
| Number of ratings | 1.9K — better | 5 |
| Update frequency | Every 3 months — better | Every 5 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Best chart rank | #129 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 11.0 |
| Further details — not scored | ||
| Size | 3 MB | 63 MB |
| Age rating | 4+ | 4+ |
| Developer | Thomas Tsopanakis | Ahmed ElSenousi |
Customer experience
Date & Time Calculator(9 in 1)
thinkMargin
In-app purchases
Date & Time Calculator(9 in 1)
No in-app purchases
thinkMargin
No in-app purchases
Questions
Is Date & Time Calculator(9 in 1) free?
Is thinkMargin free?
Which has better reviews, Date & Time Calculator(9 in 1) or thinkMargin?
Do Date & Time Calculator(9 in 1) or thinkMargin have ads?
Which is updated more often, Date & Time Calculator(9 in 1) or thinkMargin?
Other comparisons















