Udan HESS vs 亿艾斯OA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Udan HESS
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Udan ESS App is for household energy storage users to view power generation data. It has convenient functions such as real-time status monitoring and operation and maintenance management. Udan ESS App is the battery application at your fingertips
亿艾斯OA
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本应用是一款由亿艾斯公司开发、面向所有企业和团队开放使用的云端 CRM 系统，任何公司均可在线注册并开通账号。 主要功能包括： 客户与联系人管理 跟进记录与销售流程管理 销售业绩与 KPI 统计分析 员工角色与权限管理 适用于中小企业、销售团队、服务型公司等多种场景，帮助企业提升客户管理和销售执行效率。
Screenshots
Verdict
The clearest difference is update cadence: 亿艾斯OA at every 3 days against Udan HESS's every 3 months. Udan HESS's advantage is iOS requirement (13.0 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.
Udan HESS ships an update every 3 months, 亿艾斯OA every 3 days. The most recent releases landed on October 13, 2026 and September 20, 2026 respectively.
| Parameter | Udan HESS | 亿艾斯OA |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 33 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Anhui Udan Technology Co., Ltd. | 无锡亿艾斯新能源技术有限公司 |
In-app purchases
Udan HESS
No in-app purchases
亿艾斯OA
No in-app purchases
