# RingO2 — user reviews > 25 indexed App Store user reviews of RingO2 by Neuroceuticals Inc., rated 1.80/5 from 27 ratings. - Source: https://appshunter.io/ios/app/ringo2/id1367041096/reviews - App overview in markdown: https://appshunter.io/ios/app/ringo2/id1367041096.md - Rating breakdown: 5★ 2 · 4★ 2 · 3★ 3 · 2★ 1 · 1★ 19 ## Newest reviews (5 of 25) ### 1/5 — No connection *2020-05-28* The ring looks nice. The app looks pretty good. Now if they would just connect. Frustrating. I’ve emailed support. Let’s see what happens. ### 1/5 — No connection *2020-05-27* This is perhaps the worst app I’ve ever interacted with. It does nothing. It should be pulled from the App Store and its authors should have to demonstrate that any future apps they submit actually do anything before being included. ### 1/5 — Does not work *2020-05-12* Strong signal. Device manufacturer refuses to answer support inquiries and to the point the app does not work. It’s a total failure that does not connect to the device. Do not waste your money. ### 1/5 — Not linking *2020-05-11* Even after switching off all other Bluetooth devices (iWatch), the O2Ring I just received is not found by the app on my iPhoneXs. So, I don’t know where the problem is, the app or the O2Ring, which is showing the information on its display, but the main reason to spend this money was the ability to use the phone together with the O2Ring Application. ### 1/5 — No connection *2020-02-14* This app only has one job: connect via Bluetooth to the RingO2. What’s the one thing it will not do? Connect via Bluetooth. On anything that runs Bluetooth. The device shows very strong on a Bluetooth scanner but the device is not picked up by the app so I think the app is the only thing that can possibly make that connection. Tried on multiple iOS devices. ## Most critical reviews (10 lowest-rated) ### 1/5 — This app is a fake. Do not download! *2024-11-08* This app uses a name similar to a real product. It does not work, at all. This is a cheat. The app should be removed from the AppStore. Could not give a zero rating. ### 1/5 — Ditto *2024-07-07* Will not connect with app by the same name. No relevant instruction manual. Cheap knock off of a basic pilse oximeter IMO. ### 1/5 — Please reinstate this app! *2022-12-24* What have you done to this app?? I had years worth of data and now it’s gone! I tried to reload it and it won’t connect to my Bluetooth. Please fix the problem because I depend on this ring every night. ### 1/5 — 02Ring LOOKEE - DON’T Purchase *2022-10-13* ZERO - Rating But that’s not an option And it should be Will not connect to the app. DO NOT PURCHASE!!!! 2Ring Wearable Oxygen Monitor. Can’t call LOOKEE for support you have to send an e-mail and WAIT fir them to respond. For $169 it should work just as LOOKEE claims it will and it will NOT CONNECT TO THE APP. DO NOT PURCHASE!!!!!!! ### 1/5 — not for Wellue Ring *2021-12-05* Not sure what device this is for, but not the Wellue Ring, as others have also pointed out. The app for the Wellue Ring is ViHealth, get that and all will work fine. ### 1/5 — ヘルスケア連携は？ *2021-08-18, version 1.8.0* いつまで経ってもヘルスケア連携しない。する気が無いのだろう。 ### 1/5 — RingO2 app *2020-09-24* App wont connect to device . I deleted useless app. ### 1/5 — Wrong app *2020-07-22* This the absolute wrong app for the well ue 02 ring device. Bluetooth WILL NOT work with this app. I learned this the hard way. The correct app to use on an IOS phone anyway is called VIHealth. Works like a champ too. ### 1/5 — Why would they waste their time making an app that won't connect? *2020-06-28* I thought the other reviews might be wrong. They weren’t! We should be able to charge Apple for wasting your time with apps that don’t even kinda f work! ### 1/5 — 測定数値が不正確 *2020-06-05, version 1.8.0* 脈拍が100以上になると表示数が逆に80辺りに下がって大きくずれてしまう。これじゃ本当に低いかどうか分からなくなる。 ## Most praised reviews (10 highest-rated) ### 5/5 — シーパップとの併用でシーパップの効果が実感できる。 *2026-01-10, version 1.8.1* シーパップとの併用でシーパップの効果が実感できる。 とても良いシステムです。 ### 5/5 — 就寝中安心していられる *2020-05-31, version 1.8.0* 睡眠時無呼吸症候群のチェックように使っています。自分で設定した値になると腕につけた測定器だ震えて知らせてくれます。とても良い商品です。 ### 4/5 — ヘルスケアと連携してくれれば・・ *2020-09-29, version 1.8.0* 細かくデータが取れて確認でき素晴らしいです。 ただ、出来れば取得データをiosのヘルスケアアプリに格納出来るようにしていただきたいですね。 ヘルスケアのほうほApple Watch6の登場で血中酸素濃度を表示できるようになったので。 それさえできれば完璧です。 ### 4/5 — 良くできている *2019-10-03, version 1.6.9* 記録データも見やすくて無呼吸になっていると推測出来ると思う、これを見て眠剤を飲んで深い睡眠に入った時にSpo2が下がる事が分かり眠剤をなるべく少なければと考えるようになりました。 毎日使っていますが充電時にセンサーを外して充電しなければならないのでコネクタが壊れないか耐久性が少し不安です。 現状はアプリで画面ハードコピーはできますがデータをPCで使えるよう出力機能を追加してもらえると良いですが、アプリバージョンアップを期待します。 ### 3/5 — 拡大表示時に不具合あり。 *2025-04-10, version 1.8.1* ディスプレーの拡大表示に設定すると、押せないボタンがあるので修正してほしいです。 ### 3/5 — 結果表示に改善の余地あり *2022-08-22, version 1.8.1* 1.無呼吸状態の時間が知りたい 2.時間軸が読み取りにくい 　区切りよくして欲しい ### 3/5 — エラーが... *2021-04-10, version 1.8.0* 毎日測っていますが、月に数回データを取り込む時にダウンロードエラーが出ます。 RingO2側は正常に通信終了したことになっているのか、もう一度実行するとデータは消えており、その日は欠測になってしまいます。ぜひ改善していただきたいです。 また、iPhoneSEなど画面が小さめの機種で文字が非常に小さく見にくいので、もう少しだけ大きくしていただきたいです。 最後に、データのダウンロード機能かヘルスケア連動をお願いします。 ### 3/5 — You need the ViHealth App for O2ring *2021-02-15* This is not the right app for the O2ring as I found ... will not link with ring. As soon as I used the ViHealth app it is great. This ### 3/5 — I dint check before I purchased this *2020-07-30* If only I had. Just like everyone says, it won’t work. It wasn’t connecting to Bluetooth. I left a bad review. I’m Truly sorry, I had downloaded the wrong app. It was an honest mistake but I want everyone who reads this to double check, maybe you made the same mistake. 😔 ### 2/5 — Will not work with Ring O2 app! *2021-03-31* Like everyone else says it absolutely positively will not work with the app that shares its name and it’s logo. The whole point of this device is to record its results through the night and that’s the purpose of the app and it will not connect to the app, I’m giving it to stars instead of one because if you do some detective work you can discover that it works just fine and as intended with an app called V hi health, go figure, download that app and it connects immediately and works as advertised. --- *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 2026-06-10.*