# KingKing voice roaming service > VoIP app for Wi-Fi calling, saving on roaming charges. (iPhone/iPad app by PCCW.) - Source: https://appshunter.io/ios/app/kingking-voice-roaming-service/id559730064 (this page in markdown: same URL + `.md`) - Developer: [PCCW](https://appshunter.io/developer/376650586) - Category: Social Networking - Price: Free - Rating: 4.00/5 from 4 App Store ratings · 70 written reviews indexed - Age rating: 4+ - Requires: iOS 13.0 · 132 MB - Languages: American English, Chinese (Traditional, Taiwan) - Released: 2012-10-17 - Data updated: 2026-08-19 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/kingking-voice-roaming-service/id559730064/reviews.md ## What is KingKing voice roaming service? KingKing* from 1O1O/csl is a VoIP application, based on Wi-Fi connectivity, that can be used in Hong Kong or while overseas. It offers FREE*voice minutes for making outgoing calls to any Hong Kong number and receiving incoming calls from anywhere in the world. Above all, KingKing will save you from running up huge voice roaming bills. ◆◆◆ Use KingKing in Hong Kong ◆◆◆ You can now use the full KingKing service via Wi-Fi connectivity while in Hong Kong. This enables you to familarise yourself with the user interface and app features before making a trip. Download NOW to enjoy the kingly convenience of KingKing! KingKing means: • You can make/receive calls, regardless of whether the called person is on a fixed-line or mobile phone. The person you call, or who calls you, does not have to be a 1O1O/csl’s subscriber nor install any application. You can also send SMS*to anyone, regardless of their service provider. • You can use your existing 1O1O/csl’s number and have your caller ID displayed to people you call, and see the ID of those calling you. *Terms & Conditions applies Remarks: For service details, please go to (https://www.1010.com.hk/kingking) (https://www.hkcsl.com/en/kingking-voice-roaming-service/). 1O1O/CSL’s General Terms & Conditions apply (https://1010.com.hk/en/terms_and_conditions) (https://www.hkcsl.com/en/service-terms-and-conditions/) to the relationship between 1O1O/CSL and yourself, in respect of your mobile service and KK SERVICE. ## Key features - Wi-Fi calling - Free outgoing calls to Hong Kong - Free incoming calls globally - SMS sending - Caller ID display - Use existing mobile number ## Recent user reviews (10 of 70) All indexed reviews: https://appshunter.io/ios/app/kingking-voice-roaming-service/id559730064/reviews.md ### 1/5 — Error never got fixed *2026-01-14, version 6.0.18* There’s a bug when you in call about few minutes, it would turn to no sound like disconnecting but the call time is still clocking. That’s the problem it exists. Recently, a new error occurred, when the ring comes, it only appears 0.5 seconds. You can only hear the 0.5 seconds ringtone, but it doesn’t show anything even in the Call Log. Seems the app never gets any updates. ### 1/5 — Bad service *2025-11-27, version 6.0.17* After renewing the plan, the CS said I am no longer eligible for the Kingking plan! No one told me this when renewing the plan, which is totally unacceptable! ### 1/5 — iPhone 17 Pro Max 唔work *2025-11-26, version 6.0.17* 彈 app ### 1/5 — No sound how to make a call? *2025-03-11, version 6.0.16* no matter calling out or answering a call, no sound ### 4/5 — Useful while travelling *2025-03-09, version 6.0.16* It is very useful while travelling with data roaming, connection stable and convenience. The only thing to improve is if it can link together with the Apple Watch, because the Apple Watch cannot see who is calling through KingKing. ### 5/5 — Best app for overseas hongkongers *2024-09-28, version 6.0.12* Good voice quality ### 2/5 — Call log *2024-08-17, version 6.0.11* In general the app works ok but no way to clear the call log. ### 1/5 — cannot login *2024-06-01, version 6.0.9* After I switched it off as 6 scam calls in a roll coming in, I can never switch it on again. It keeps saying it is disconnected, no support to reconnect at all. ### 1/5 — Keeps receiving junk calls when disconnect *2024-05-07, version 6.0.9* Wants to recrive SMS but not calls, so turn on HK SIM card but disconnect Kingking App. However, junk calls still come through. ### 1/5 — Disconnect *2023-11-15, version 6.0.7* When I update the app, the app will close automatically and go to apps download page. So I can’t use in this app Monent. ## Frequently asked questions about KingKing voice roaming service ### What does the KingKing voice roaming service do? KingKing is a VoIP application that allows you to make and receive calls over Wi-Fi. It is designed to help users save money on international voice roaming charges by offering free minutes for outgoing calls to Hong Kong numbers and free incoming calls from anywhere in the world. ### How can KingKing save me money on roaming? By utilizing Wi-Fi connectivity, KingKing bypasses traditional cellular roaming networks for voice calls. This means you can make calls to Hong Kong numbers and receive calls from anywhere without incurring the high per-minute charges typically associated with international roaming. ### Do the people I call or who call me need to have the app installed? No, the person you call or who calls you does not need to have the KingKing application installed. They can be on a fixed-line or mobile phone, and they do not need to be a subscriber of 1O1O/csl. The app also allows you to send SMS messages to any service provider. ### Can I use my existing mobile number with KingKing? Yes, you can use your existing 1O1O/csl number with KingKing. This ensures that your caller ID is displayed to the people you call, and you can see the caller ID of those calling you, maintaining a familiar communication experience. ### Is KingKing available for use in Hong Kong as well as overseas? Yes, KingKing can be used both while you are in Hong Kong and while you are overseas. This allows you to familiarize yourself with the app's interface and features before traveling, and to continue enjoying its benefits domestically. ## Version history (last 5 releases) ### 6.0.22 — 2026-08-18 This version includes a number of stability enhancement. ### 6.0.21 — 2026-05-26 This version includes a number of stability enhancement. ### 6.0.20 — 2026-03-26 This version includes a number of stability enhancement. ### 6.0.19 — 2026-03-09 This version includes a number of stability enhancement. ### 6.0.18 — 2025-12-15 This version includes a number of stability enhancement. ## Apps similar to KingKing voice roaming service | App | Rating | Price | Category | | --- | --- | --- | --- | | [Heymandi · Word-Based Social](https://appshunter.io/ios/app/heymandi-word-based-social/id1279854151) | 4.2 (162) | Free | Social Networking | | [易博通eSender](https://appshunter.io/ios/app/esender/id1472477960) | 1.7 (55) | Free | Social Networking | | [MaskCall](https://appshunter.io/ios/app/maskcall/id1562341895) | 3.9 (14) | Free | Social Networking | | [HelloWay](https://appshunter.io/ios/app/helloway/id681636238) | 5.0 (1) | Free | Social Networking | | [Travel Call](https://appshunter.io/ios/app/travel-call/id6469806549) | — | Free | Social Networking | | [LIHKG 討論區](https://appshunter.io/ios/app/lihkg/id1178373396) | 4.4 (86) | Free | Social Networking | ## More apps by PCCW - [Travel Hong Kong Wi-Fi](https://appshunter.io/ios/app/travel-hong-kong-wi-fi/id988321014) - [1O1O Corporate](https://appshunter.io/ios/app/1o1o-corporate/id1194344336) All apps by PCCW: https://appshunter.io/developer/376650586 ## Related topics [pccw](https://appshunter.io/ios/topics/pccw) · [1010 csl](https://appshunter.io/ios/topics/1010-csl) · [roame](https://appshunter.io/ios/topics/roame) --- *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 2026-08-19.*