World Times vs thinkMargin
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
World Times
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This app displays the time in over 400 world-wide locations as well as their Greenwich Mean Time offset. Locations are indexed and ordered alphabetically within their respective geopolitical regions. An additional page facilitates the calculation of the time difference between 2 time zones calculated from the "GMT" offsets which can be obtained from the table view page. For locations that do not display the "GMT" offset it can easily be calculated by subtracting the the "GMT" time from the local time. The app displays the day of a location relative to the day of the current time zone device setting (i.e. "Today", "Tomorrow" or "Yesterday") in 32 languages. "Image courtesy of the Image Science & Analysis Laboratory, NASA Johnson Space Center" Roll-Frame:148-22727.
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
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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 ads: World Times at none against thinkMargin's shown. thinkMargin's advantage is update cadence (every 5 months vs every 38 months). On price, in-app purchases, device support and iOS requirement 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
World Times costs $0.99 and thinkMargin $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
World Times ships an update every 38 months, thinkMargin every 5 months. The most recent releases landed on October 13, 2026 and October 8, 2026 respectively.
| Parameter | World Times | thinkMargin |
|---|---|---|
| Price | $0.99 | $0.99 |
| Rating | — | 4.2 (5 ratings) — better |
| Positive reviews | — | 83.3% of reviews |
| Number of ratings | — | 5 — better |
| Update frequency | Every 38 months | Every 5 months — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 63 MB |
| Age rating | 4+ | 4+ |
| Developer | Manfred Breede | Ahmed ElSenousi |
In-app purchases
World Times
No in-app purchases
thinkMargin
No in-app purchases
Questions
Is World Times free?
Is thinkMargin free?
Do World Times or thinkMargin have ads?
Which is updated more often, World Times or thinkMargin?
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