Clockwise vs LDB
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Clockwise
Easily track time zones for friends, family, and colleagues worldwide. Features dynamic backgrounds, personalized photos, and home-screen widgets for at-a-glance updates. Supports over 200k locations, even offline, and syncs across devices via iCloud.
- Automatic time zone detection
- Time scrubbing for planning
- Dynamic sky backgrounds
- Personalized contact photos
- Home-screen widgets
- Daylight Saving Time alerts
- Offline location database
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Tired of calculating time zone differences? Meet Clockwise, the ultimate app for tracking the time of friends, family, and colleagues around the world! • Simple Setup Just enter someone’s name (or select from your contacts), choose their location, and we’ll automatically detect their time zone! • Time Scrubbing Easily shift the time forwards or backwards to plan and coordinate across time zones. • Dynamic Sky Backgrounds Watch the sky come to life with beautiful colors that change in real-time, reflecting the actual sunrise and sunset of each person’s location. • Personalized Photos Add a personal touch by uploading photos of your loved ones. You can scale and crop images to get the perfect fit! • Widgets Stay connected at a glance with home-screen widgets that display the local time of your friends and family without even opening the app! • Daylight Saving Time Never miss a time change again! Stay informed of upcoming daylight saving time changes around the world. • Contact Linking Import your contacts and call or text them directly from the app. Getting in touch with your friends and family abroad has never been easier! • Clock Customization Select from a variety of clock display options, including both analog and 24-hour formats. • Extensive Location Database Choose from over 200k locations worldwide, even offline. Whether it’s a big city or a small town, we’ve got you covered. • iCloud Sync Sync your contacts and their time zones across all your devices via iCloud. Clockwise is available on both iPhone and iPad.
LDB
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The LDB technical data app offers all technical drawings and data sheets you need in one convenient app.
Screenshots
Verdict
Clockwise and LDB are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
| Parameter | Clockwise | LDB |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (8 ratings) — better | — |
| Positive reviews | 92.9% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 6 weeks | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.1 | 15.1 — better |
| Further details — not scored | ||
| Size | 35 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | Brittany Petrova | Losberger De Boer |
In-app purchases
Clockwise
No in-app purchases
LDB
No in-app purchases









