Z vs Kowint
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Z
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Household power station operation management, convenient and quick check the power station situation. Real-time control of power station working conditions. Daily, monthly and annual power generation at a glance.
Kowint
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This is an energy management app, which has the following four functions: 1. View the device list page 2. Check the energy flow of the device and the specific energy change 3. Check the energy supply trend of the device 4. Data statistics and viewing
Screenshots
Verdict
Z and Kowint 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.
Z ships an update fortnightly, Kowint every 3 weeks. The most recent releases landed on September 15, 2026 and September 13, 2026 respectively.
| Parameter | Z | Kowint |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 11.0 | 11.0 |
| Further details — not scored | ||
| Size | 38 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | Zhongrui Green Energy Technology (Shenzhen) Co., Ltd. | KOWINT ENERGY |
In-app purchases
Z
No in-app purchases
Kowint
No in-app purchases
