Multi vs WANJIN ESS
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Multi
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Based on graffiti WiFi, intelligent control of heat pump products
WANJIN ESS
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The EMS App supports the access and unified control of energy storage, photovoltaic and charging equipment. Support different operators' access, and completely isolate the data of each operator. Flexible generation of daily, monthly, and annual operating data reports and revenue data. For end users of energy storage, it provides power generation and power consumption data viewing, optimizes energy supply, and monitors energy equipment anytime and anywhere through instant reminders and remote access functions.
Screenshots
Verdict
Multi and WANJIN ESS are too close to call on the numbers: across 6 compared parameters β price, update cadence, ads and in-app purchases among them β neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Multi ships an update every 3 months, WANJIN ESS every 6 months. The most recent releases landed on October 3, 2026 and October 5, 2026 respectively.
| Parameter | Multi | WANJIN ESS |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months β better | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 11.0 β better | 12.0 |
| Further details β not scored | ||
| Size | 36 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Guangdong Chico Electronic Inc. | Anhui Udan Technology Co., Ltd. |
In-app purchases
Multi
No in-app purchases
WANJIN ESS
No in-app purchases
