SIAECOSYS vs EWATT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SIAECOSYS
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SIA App是智能电动车控制系统软件，能够对电动车进行无线连接;查看车况信息；掌握车辆状态，调整车辆参数；个性化设置，随你掌控，让您的爱车更智能。
EWATT
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本应用是用于智能锂电池管理系统的工具软件。App使用低功耗蓝牙与电池管理系统（BMS）建立连接，可通过手机设备读取电池信息。
Screenshots
Verdict
The clearest difference is update cadence: SIAECOSYS at every 3 days against EWATT's every 2 months. SIAECOSYS also leads on iOS requirement (8.0 vs 13.0). On price, ads, 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.
SIAECOSYS ships an update every 3 days, EWATT every 2 months. The most recent releases landed on May 14, 2026 and September 7, 2026 respectively.
| Parameter | SIAECOSYS | EWATT |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 8.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 3 MB | 24 MB |
| Age rating | 4+ | 17+ |
| Developer | Teranovo | 帆 刘 |
In-app purchases
SIAECOSYS
No in-app purchases
EWATT
No in-app purchases
