PH vs Legacy Industry
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PH
Read full descriptionHide full description
Through PH-SOLAR new energy monitoring platform, users can centrally monitor, store, analyze and display the data and operation status of the power station, so as to know the operation management status of the power plant and the data energy efficiency analysis, and estimate the revenue, so as to provide a substantial scientific basis for the economic operation and the design of the power station. Through real-time communication technology, the fault information is processed and diagnosed quickly, which provides technical support for the safe operation of the power station.
Legacy Industry
Read full descriptionHide full description
电池远程监控，电池永远在线，状态尽在掌控。
Screenshots
Verdict
The clearest difference is update cadence: PH at fortnightly against Legacy Industry's every 12 months. Legacy Industry's advantage is iOS requirement (12.0 vs 15.6). 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.
PH ships an update fortnightly, Legacy Industry every 12 months. Both last shipped on October 25, 2026.
| Parameter | PH | Legacy Industry |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly — better | Every 12 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 46 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | Suzhou zhongchupuhua Electric Technology Co., Ltd | Anhui Udan Technology Co., Ltd. |
In-app purchases
PH
No in-app purchases
Legacy Industry
No in-app purchases
