绿晶服务 vs 德达OA办公
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
绿晶服务
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本次上线： - 开发票。可以提交、查看开票信息。 - 周报、日报。提交日志，并指定接受人。 - 员工管理。员工录入、离职、查看详情等功能的上线。
德达OA办公
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办工与协作，开放审批，打卡，帮助企业提升办公效率和管理能力
Screenshots
Verdict
The clearest difference is iOS requirement: 绿晶服务 at 9.0 against 德达OA办公's 13.0. On price, update cadence, ads and in-app purchases 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.
绿晶服务 ships an update every 10 days, 德达OA办公 weekly. The most recent releases landed on May 18, 2026 and September 11, 2026 respectively.
| Parameter | 绿晶服务 | 德达OA办公 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 days | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 41 MB | 40 MB |
| Age rating | 4+ | 17+ |
| Developer | Green Crystal Environmental Service Group Co., Ltd. | 北京云隼科技有限公司 |
In-app purchases
绿晶服务
No in-app purchases
德达OA办公
No in-app purchases
