# Circa³ – Time Zone Converter — user reviews > 133 indexed App Store user reviews of Circa³ by Kostiantyn Zuiev, rated 4.50/5 from 382 ratings. - Source: https://appshunter.io/ios/app/circa-time-zone-converter/id968698352/reviews - App overview in markdown: https://appshunter.io/ios/app/circa-time-zone-converter/id968698352.md - Rating breakdown: 5★ 307 · 4★ 28 · 3★ 15 · 2★ 12 · 1★ 20 ## Newest reviews (14 of 133) ### 4/5 — Simplistic Perfection *2024-03-23, version 3.3.1* A great looking app that does what it says on the tin ### 2/5 — Still Crashes *2024-01-28, version 3.3.1* It still crashes on Apple Watch Series 9. ### 4/5 — Great on iPhone, not Apple Watch *2023-08-18, version 3.3.1* I really like Circa for finding convenient meeting times across multiple locations. I have always found it to be accurate. I have never had it work on Apple Watch though (currently AW Ultra) as it crashes on loading every time. This is really the only thing that lets the app down. Great job otherwise. ### 3/5 — Apple Watch crashes *2023-08-09, version 3.3.1* Great idea for an app! But it hasn’t been updated and the apple watch app crashes every time. ### 2/5 — Doesn’t work well *2023-07-28, version 3.3.1* Crashes completely on watch right away. Clicking on create event on phone doesn’t work. ### 5/5 — Anywhere, any time *2023-06-20, version 3.3.1* I live i Japan. Family in the US. Coworkers in US, Germany, and Thailand. No other way to keep time straight. ### 5/5 — The best app ever designed! *2023-03-12, version 3.3.1* This is the very best app that was ever designed. Incredibly beautiful and functional. ### 4/5 — customization colours *2023-03-07, version 3.3.1* would be great if we could customise colours for each new city/tasks ### 5/5 — Fantastic *2023-02-10, version 3.3.1* Dmckcn ### 2/5 — Works on phone but won’t open on Apple Watch *2022-12-27* I have an Apple Watch series 8 running OS 9.1. Unfortunately, the Watch app looks like it will open when you tap it but it never does. It opens on my iPhone just fine but not on my watch. It’s a shame because that’s the whole reason I download the app in the first place. ### 2/5 — Great on phone, crashes on Watch *2022-12-23* This was one of my most frequently used apps a couple of years ago, particularly on my Apple Watch. For several WatchOS versions now, though, Circa crashes immediately after opening. This has persisted through multiple WatchOS versions (currently 9.1.x) and multiple Watches (series 6 and now Ultra.) If that major bug gets fixed, this is a five star app. EDIT: even with “new” version, still fails on Watch. Tap the app, looks like it’ll open, then nothing. Shame that a once great app has tanked so badly. **Developer response:** New version with support of complications for Apple Watch is now available. Enjoy! ### 5/5 — Super simple and does the job *2022-11-28, version 3.3.1* I use this app every day to figure out meeting times that work across time zones, it’s so easy ### 5/5 — Lifesaver *2022-11-21, version 3.3.1* So helpful and easy to use ### 3/5 — Problem on WatchOS 9? *2022-10-21, version 3.3.1* Love the iPhone App but crashes on startup on my Watch. A problem with WatchOS 9? ## Most critical reviews (10 lowest-rated) ### 1/5 — Doesn’t work *2025-01-07, version 3.3.1* Can’t add a new city so app is useless ### 1/5 — Keine Updates *2024-07-06, version 3.3.1* Funktioniert nicht gut ### 1/5 — Not working on Apple watch *2023-07-28, version 3.3.1* Details show up in watch once it's set up from the phone, but app won't open from the watch ### 1/5 — Scam *2022-09-30, version 3.3.1* App have potential, but doesn’t work as presented on demo. You can’t set up as a widget, can’t set up as watch front page, can’t display names of the cities at the circles. I have asked for refund, felt cheated. If it’s gonna be fixed will buy again. ### 1/5 — Doesn’t work on Apple Watch *2022-07-26, version 3.3.1* Just purchased the app seeing how it supports Apple Watch, but turns out the App doesn’t work (immediately crashes and exits) on Apple Watch Series 4 on latest version watchOS 8.7. Also just realized the developer seems to stop supporting the app 3 years ago.. would try to get refund for the app. ### 1/5 — Says there is a widget but there is not *2022-05-14, version 3.3.1* Where is the widget?? ### 1/5 — App crashes on Watch. *2022-01-26, version 3.3.1* Beware. I have latest Watch and OS and it does kt load on Apple Watch. Runs OK on phone, but that is not what I paid for. Refund please! ### 1/5 — Doesn’t Work as Advertised *2021-12-25, version 3.3.1* This looks like an app that the developer stopped caring about. Phone app doesn’t show time zone names inside circles (as shown in screenshots). The worst part is that watch complications don’t run at all. Should be either updated or kicked off the store. ### 1/5 — Doesn’t work anymore *2021-11-12, version 3.3.1* Worked great until recently. But now Apple Watch app crashes instantly. No updates for two years ### 1/5 — Widget and complications didn’t work *2021-01-23, version 3.3.1* Bought this for the widget and complications. I actually am not a fan of the ring method for visualizing as the scale of each ring is odd. Widget - could never find the widget to add, Lock Screen and Home Screen. It never showed up to add Watch - for the bottom corner complication it never updated and didn’t allow me to select a time zone. ## Most praised reviews (10 highest-rated) ### 5/5 — Fantastically useful *2026-02-05* I’ve used this for keeping track of various time zones for years now. ### 5/5 — Essential app! *2026-01-07, version 3.3.1* I use it every day ### 5/5 — The BEST way to avoid time zone conflicts *2025-03-22* We are global nomads, and have contacts we work with around the world. This app is perfect for setting up appointments and knowing when to pick up the phone and call. ### 5/5 — Best time zone app *2025-01-05, version 3.3.1* I love this app. It’s the best time zone app ever. It’s simple to use and very clear. I use it multiple times a day. ### 5/5 — Disappointed *2024-10-31, version 3.3.1* OK, but would like names on color bands. ### 5/5 — Most useful *2024-09-16, version 3.3.1* I use this almost every day. It is a nice, natural UI and does just what I need. ### 5/5 — Awesome little app. The best TZ app out there and I’ve tried most of them *2024-09-06, version 3.3.1* Cz ### 5/5 — Excellent visual tool *2024-02-29* Allows user to see working hours in several time zones and to convert times at a glance. Super useful for scheduling online meetings, classes etc. ### 5/5 — One of the few apps I pay for and worth its weight in gold *2024-01-31, version 3.3.1* As someone who works with multiple teams across mil countries, this app in invaluable for organising meetings at optimal times. ### 5/5 — Elegant *2023-09-16, version 3.3.1* Love the UI and integration with my calendar --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-29.*