SZOS vs RV Fit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SZOS
This app syncs with a smart watch to track your daily activity, including steps, heart rate, and sleep patterns. It provides insights into your health and fitness metrics.
- Step tracking
- Heart rate monitoring
- Sleep analysis
- Syncs with smart watch
- Activity mode
Read full descriptionHide full description
"SZOS APP设计为与SZOS智能手表配合使用， 它可以帮助您测量步数，心率，睡眠等" 【温馨提示】 用户开启运动模式后，手机切换至后台仍会持续定位，长时间使用GPS在后台运行可能显著减少电池寿命,影响续航时间。
RV Fit
This smartwatch application provides real-time weather updates and simplifies water intake tracking. It syncs with smart bands to manage daily steps and sleep patterns, offering notifications for calls and messages, along with customizable watch faces.
- Real-time weather updates
- Water intake tracking
- Daily step and sleep management
- Call and message notifications
- Customizable watch faces
- Apple HealthKit integration
Read full descriptionHide full description
Da Tong App是智能手表应用，方便的了解实时天气，记录喝水变得简单。搭配智能手环使用可管理您的日常步数，睡眠，生活中能够提醒来电，短信消息，等功能，并提供了丰富的表盘，支持自定义表盘功能。 温馨提示： -本应用支持apple HealthKit 应用，授权后选择数据来源为手机， 可以从App看到运动的步数和卡路里消耗情况。 -本应用内或者本应用从手表获取的健康数据仅作为一般性健身参考，不可以用于任何医疗用途包括自我诊断或者咨询医生，本应用内设备非医疗设备，无法提供任何形式的医疗服务。如果身体有任何不适，请及时就医。
Screenshots
Verdict
The clearest difference is ads: RV Fit at none against SZOS's shown. RV Fit also leads on update cadence (every 5 days vs every 3 weeks) and rating (3.0 vs 2.8). SZOS's advantage is ratings volume (105 vs 2). On price, review sentiment, in-app purchases and device support there is nothing between them.
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.
RV Fit holds the better App Store score, 3.0 against 2.8. That said, the two scores are not equally well evidenced: SZOS has 105 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 5% of SZOS's written reviews are positive against 0% of RV Fit's, so the app with the better star average is not the one people write more warmly about.
SZOS ships an update every 3 weeks, RV Fit every 5 days. The most recent releases landed on October 18, 2026 and October 7, 2026 respectively.
| Parameter | SZOS | RV Fit |
|---|---|---|
| Price | Free | Free |
| Rating | 2.8 (105 ratings) | 3.0 (2 ratings) — better |
| Positive reviews | 5.3% of reviews — better | 0.0% of reviews |
| Number of ratings | 105 — better | 2 |
| Update frequency | Every 3 weeks | Every 5 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 70 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | 晟 谷 | Shenzhen Dinghefeng Technology Co., Ltd. |
Customer experience
SZOS
RV Fit
In-app purchases
SZOS
No in-app purchases
RV Fit
No in-app purchases
