Time Zone Converter vs Gwtar Viewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Time Zone Converter
Easily track multiple time zones, convert times between cities, and customize clock displays. This app helps travelers, remote workers, and global teams stay organized and avoid missing deadlines.
- Track multiple time zones
- Instant time conversion
- Customizable clock display
- Seamless scheduling tools
- Global time management
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Sleeko is the ultimate timezone and clock app designed for travelers, remote workers, and global teams. With an intuitive interface, you can: 1. Track multiple time zones in one place 2. Convert time instantly between cities 3. Customize your clock display for easy reference 4. Stay productive with seamless scheduling tools Never miss a meeting or deadline again—download Sleeko now and take control of your time!
Gwtar Viewer
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Gwtar Viewer opens Gwtar archives — self-extracting single-file HTML that packs a web page with all of its images and styles into one .html file. Gwtar files do not work when opened directly in a browser: they need a server that answers Range requests, fetching just the parts of the file that are actually needed. Gwtar Viewer runs a local server on your device to provide exactly that, letting the archive's own rendering logic do the rest. Your files are never modified. It also works as a viewer for ordinary HTML files, not just Gwtar. ■ Features - Open and read Gwtar files (.html) - Files you open are kept as history cards with thumbnails for quick reopening - Page zoom, remembered per file - Light / dark themes, English / Japanese UI - One-tap deletion of site data stored by archives ■ Privacy Everything happens on your device. The only network traffic is between the app and its own local server. Nothing is ever sent or collected externally. ■ Open source Gwtar Viewer is open-source software under the 0BSD license. See the support URL. The Gwtar format was designed by Gwern Branwen (this app is an independent implementation).
Screenshots
Verdict
Time Zone Converter and Gwtar Viewer 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 | Time Zone Converter | Gwtar Viewer |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.1 | 14.0 — better |
| Further details — not scored | ||
| Size | 33 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Nischal Gautam | Yasuhiro Yamada |
In-app purchases
Time Zone Converter
No in-app purchases
Gwtar Viewer
No in-app purchases
Questions
Is Time Zone Converter free?
Is Gwtar Viewer free?
Do Time Zone Converter or Gwtar Viewer have ads?
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