UMSmartSound vs Private
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
UMSmartSound
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---------------------- APP Function ---------------------- 1. Multiple sound modes, easy to switch, precise and easy to control --HIFI Mode: Raise the audio sample rate to the highest available threshold, let you instantly enter the immersive HIFI level listening experience. --Adaptable ANC Mode: Adjust the noise canceling level according to the loudness of the ambient sound. Let you fully enjoy the music without the increasing the pressure in the ears. --Ambient Mode: Let you hear through the ambient sound. Provide you the flexibility to communicate with others. --Voice Enhance Mode: In social settings, selectively enhanced environmental sounds to facilitate listening, communication and conversation. 2. Equalizer Gaming Mode, Touch Disable, In Ear Sensor, 4 preset EQ and 1 custom EQ. 3.Audio Scene Management (Idle/playing music/talking): Switches to a specific master mode 4.Equipped with personal usage habit setting function, double - click three - stroke settings 5.Restore original factory settings, firmware upgrade ---------------------- Contact ---------------------- If you have any questions or suggestions, please contact us: Email: service@uniquemelody.org Web: www.uniquemelody.org Privacy Policy: https://www.uniquemelody.org/policies/privacy-policy
Private
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Private-X APP家庭数据守护者,手机的扩容伴侣。它不仅是多功能超级NAS,更是您珍贵的数据管家。轻松收纳相册,每一个美好瞬间都能妥善保存。实现数据存储、同步与共享,无缝扩充移动设备空间,同时严守隐私防线,护您数据周全。
Screenshots
Verdict
UMSmartSound and Private are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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.
UMSmartSound ships an update every 3 months, Private every 2 months. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.
| Parameter | UMSmartSound | Private |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 11 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | ZERO PLUS, K.K. | 军义 黄 |
In-app purchases
UMSmartSound
No in-app purchases
Private
No in-app purchases









