See through Calculator vs World Time Map
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
See through Calculator
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A calculator app where the background is transparent and you can calculate while looking at the numbers written under the iPhone (calculator app)
World Time Map
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Compare world times fast, check local time abroad, and avoid DST or date-change mistakes with a clear world clock built for travel, overseas contact, and everyday international use. Best for - Checking local time before travel, messages, or calls - Comparing cities and dates at a glance - Finding the right contact window for friends, family, and global teams What you can do - Add cities and compare live local times in one list - See time differences from your base city at a glance - Set a reference date and time to preview local time anywhere - Reorder and remove cities to keep your list focused Why people use it - Faster than searching each city one by one - Easier to avoid DST and date-shift mistakes - Simple enough for daily use without extra setup Download WorldTimeMap to compare city times clearly and stay in sync across time zones.
Screenshots
Verdict
The clearest difference is update cadence: See through Calculator at fortnightly against World Time Map's every 2 months. See through Calculator also leads on device support (3 vs 1) and iOS requirement (15.8.3 vs 17.0). On price, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
See through Calculator ships an update fortnightly, World Time Map every 2 months. The most recent releases landed on November 4, 2026 and October 1, 2026 respectively.
| Parameter | See through Calculator | World Time Map |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly — better | Every 2 months |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.8.3 — better | 17.0 |
| Further details — not scored | ||
| Size | 35 MB | 63 MB |
| Age rating | 4+ | 4+ |
| Developer | Hideaki Uchikoshi | YOSHIKI OSHIMA |
In-app purchases
See through Calculator
No in-app purchases
World Time Map
No in-app purchases
Questions
Is See through Calculator free?
Is World Time Map free?
Do See through Calculator or World Time Map have ads?
Which is updated more often, See through Calculator or World Time Map?
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