World Sync vs e
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
World Sync
Easily check and compare current or future times across multiple global locations. Coordinate meetings, travel, or connect with loved ones worldwide with a simple scroll interface. No account setup required for instant global time awareness.
- Compare time across unlimited cities
- Scroll to view future times
- Add and manage custom city lists
- Daylight saving time insights
- Immediate use without account setup
- Smart location setup
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World Sync is the easiest way to check and compare the time anywhere in the world, now or in the future. Whether you’re coordinating a meeting, catching up with family overseas, or booking travel, World Sync helps you see what time it will be across your selected cities—all with a simple scroll. No account. No setup. Unlimited cities. Just global time awareness made effortless. Features: • Immediate use – Launch and start syncing time immediately without creating an account. • Smart location setup – Use your current location or enter a city manually. • Scroll to the future – Drag the time ribbon forward or backward to see how local times shift across all your selected cities. • Custom city list – Add, reorder, or remove cities anytime. • Daylight saving insights – Tap the info button to see when and how time shifts due to DST. • Manual control – Switch your “current city” to simulate different scenarios. Perfect for remote teams, travelers, event planners, or anyone who needs to think globally.
e
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e-chain helps you design and write artwork to supported NFC-powered e-paper keychain displays. Choose your Waveshare 1.54-inch panel, add a photo or text, tune brightness, contrast, saturation, exposure, sharpness, dithering, and panel colors, then send the finished image by holding your iPhone near the NFC tag. Features: - Supports Waveshare 1.54-inch NFC-powered e-paper B and G panels - Photo import with live e-paper preview - Text overlays with repeat and spacing controls - Three-color and four-color panel palettes - Dithering and direct color modes - Local saved drafts and recent images - NFC write progress with clear status updates
Screenshots
Verdict
The clearest difference is iOS requirement: World Sync at 17.6 against e's 26.0. On price, ads, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | World Sync | e |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Fortnightly | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone |
| Requires iOS | 17.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 18 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | One47 | Luigi Greco |
In-app purchases
World Sync
No in-app purchases
e
No in-app purchases









