The Time Zone Converter vs 15min Change Timer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
The Time Zone Converter
Easily convert time zones and check the current time in different locations worldwide. This app allows you to add desired locations and use a timeline to see future times. It also features a calendar view to find common working hours across selected places.
- World time zone conversion
- Add custom locations
- Scrollable timeline for future times
- Calendar view for working hours
- Home screen widgets
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World Clock – time zones converter app. Add the location you want and scroll the timeline to check what time will be there. On the calendar screen, you can easily find common working hours for the selected locations. Have an idea or a bug report? Text me at vdugnist@gmail.com! Terms of service: https://vdugnist.com/tz_tos.html
15min Change Timer
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「15分チェンジ法」に基づく集中力コントロールタイマー。 好きなこと（Free）とやるべきこと（Work）を15分ずつ交互に繰り返すことで、作業への心理的障壁を下げ、自然な集中状態（フロー）へ導きます。 ▼ 特徴 ・Work → 15分の集中タイム。ノッてきたらそのまま延長OK（フロー状態の証） ・Free → 自由な休憩タイム。超過すると即アラートで Work 復帰を催促 ・ロック画面 & Dynamic Island にタイマーを常時表示 ・Apple Watch の通知からワンタップでモード切替 ・月間の作業時間をカレンダーで振り返り ▼ こんな人におすすめ ・作業を始めるのが億劫な人 ・集中が続かない人 ・ポモドーロ法が合わなかった人 15分だけ、まずは始めてみませんか？
Screenshots
Verdict
The clearest difference is in-app purchases: 15min Change Timer at none against The Time Zone Converter's 6. The Time Zone Converter's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price and ads 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. The Time Zone Converter sells 6 in-app purchases, starting at $2.99 per month. 15min Change Timer asks for nothing beyond the download.
| Parameter | The Time Zone Converter | 15min Change Timer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (1.5K ratings) — better | — |
| Positive reviews | 45.7% of reviews | — |
| Number of ratings | 1.5K — better | — |
| Update frequency | Every 4 weeks | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 23 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Vladislav Dugnist | Hiroki Muranaka |
Bugs and requests
The Time Zone Converter
Reported bugs
2 issues- Subscription issues and repeated payment prompts
- Unable to add new time zones in free version
Requested features
4 requests- Add military time display option
- Improve widget functionality
- Provide desktop version
- Improve calendar integration
15min Change Timer
Not enough reviews yet to summarise bugs or requests.
In-app purchases
The Time Zone Converter
- Monthly subscription$2.991 Month
- Annual Pro Subscription7 Days trial$8.991 Year
- Annual Pro Subscription3 Days trial$9.991 Year
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- Annual Pro Subscription$9.991 Year
- Annual Pro Subscription7 Days trial$9.991 Year
- Annual Pro Subscription7 Days trial$14.991 Year
15min Change Timer
No in-app purchases
Questions
Is The Time Zone Converter free?
Is 15min Change Timer free?
Do The Time Zone Converter or 15min Change Timer have ads?
Other comparisons
