About Zonex
Zonex is a single-user time-zone and currency converter for iPhone and the web. Pick a source city, line up the cities you care about, and read every clock at a glance. Switch to the currency tab to convert with up-to-date FX rates from a free, public source — no ads, pop-ups, or account.
Contact
The fastest way to get help is email.
lerealsolutioncc@outlook.com
Common topics
- Timezone conversion — pick a source city, then add up to 7 other cities, for 8 clocks in total. Set a specific source time, or follow live "now".
- Currency rates — most come from Frankfurter (ECB-backed, free, no key). The currencies it does not cover — TWD, VND, AED and SAR — come from the open-source currency-api dataset delivered via the jsDelivr CDN. Rates are treated as fresh for about 30 minutes, after which Zonex refetches them; that is a freshness threshold, not a deletion deadline, so older stored rates stay available for offline use.
- Saved presets — save your most-used time and currency setups and apply them in one tap.
- Offline behavior — the app shell and your settings work offline. Currency rates fall back to the last stored values when you have no connection, even if those values are older than the 30-minute freshness window.
- Reset app data — Settings → Reset app data removes Zonex-prefixed localStorage data and reloads the app. It does not directly delete the App Group container that holds widget state on iPhone; instead, after the reset-triggered reload, normal app initialization overwrites that widget state with defaults.
- TestFlight feedback — if you're on a TestFlight build, you can also use TestFlight's built-in "Send Beta Feedback" sheet, which attaches a screenshot.
Known limitations
- FX rates are informational only and may be delayed. Not for financial decisions.
- Zonex ships in 5 languages: English, French, Spanish, Traditional Chinese, and Simplified Chinese.
- No accounts. Zonex does not upload or sync saved settings to a Zonex account or cloud datastore. Share links are the one exception you create yourself — they intentionally carry the setup you are sharing.
Privacy
See the Privacy Policy for what leaves your device. In short: Zonex has no account and no backend of its own, but fetching exchange rates does contact third-party providers, and any network request exposes normal metadata such as your IP address and browser or app user agent. Anonymous usage analytics run on the web version only, with an opt-out switch; they are disabled in the native iOS app.