法大大 vs StepFun
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
法大大
This app offers a secure and compliant platform for signing electronic contracts online. It simplifies the traditional signing process, saving time and ensuring legal validity through features like real-name authentication and blockchain evidence preservation. It supports various industries for efficient contract management.
- Online electronic contract signing
- Contract drafting
- Free contract management
- Real-name authentication
- Blockchain evidence preservation
- Legal validity assurance
- Electronic seal issuance
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告别传统签约方式，在线签署电子合同文件！法大大作为领先的第三方电子合同平台，因其便捷、安全、合规等特点被广大用户所认可！电子合同问题请咨询法大大客服热线：400-869-2012。 便捷：网上签合同更方便，在线签合同1分钟轻松搞定，节省时间； 安全：采用实名认证手段确保签署人身份真实有效，区块链分布式证据保全，碎片化加密存储，有效防篡改； 合规：法大大严格遵照《电子签名法》、《合同法》等相关规定，保证用户签署的电子合同文件具有法律效力。 电子合同产品功能： 在线签署电子合同；支持合同在线起草；免费的电子合同管理服务，海量电子合同模板免费下载；实名认证后颁发有效的电子签章/电子印章/电子公章；支持电子签章/电子印章/电子公章在线上传；免费对电子签章/电子印章/电子公章进行管理，并提供权威司法鉴定、在线仲裁、出证技术报告等延伸法律服务。 广泛的应用场景： 旅游行业-旅游电子合同，在线高效签发合同、大幅压缩成本、快速完成旅行社与客户签约； HR行业-劳动电子合同，在线发起审批流，零仓储实现本地/异地人事电子合同管理。； 房地产行业-租赁电子合同，线上签署房屋租赁协议，节省时间，提高效率。； 教育行业-教育电子合同，培训机构与学员/老师等角色快速完成签约，保证双方权益； 其他行业-电子商务、医疗、金融、、物流供应链、事业单位等更多行业也在使用电子合同线上签约服务。
StepFun
This AI assistant helps you think and act more efficiently. It offers smart Q&A, document understanding, and task execution, powered by advanced agent capabilities for faster learning and increased productivity. Enjoy voice-first interactions and automated task management.
- Smart Q&A
- Document understanding
- Task execution
- Voice-first interactions
- Agent capabilities
- Real-time chat
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- StepFun AI is your all-in-one assistant for thinking and doing. From smart Q&A to document understanding and task execution, it helps you learn faster and get more done. - Now powered by advanced agent capabilities. With Step 3.7 Flash and DeepSeek-R1, StepFun AI is faster, smarter, and more capable than ever. - Chat is your multimodal assistant for questions and writing. Ask anything, write effortlessly, and talk in real time with natural, voice-first interactions. - StepClaw works for you around the clock. It executes tasks across devices, connects with Feishu bots, and keeps everything running—so you don’t have to.
Screenshots
Verdict
The clearest difference is rating: StepFun at 4.3 against 法大大's 1.0. StepFun also leads on review sentiment (50% vs 23%) and update cadence (every 9 days vs every 6 weeks). 法大大's advantage is monetization model (free vs free with in-app purchases) and iOS requirement (9.0 vs 15.1). 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. 法大大 sells 6 one-off in-app purchases and StepFun sells 13 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
StepFun holds the better App Store score, 4.3 against 1.0. Both are backed by a comparable volume of ratings — 2 and 8 respectively. Written reviews point the same way: 23% of 法大大's written reviews are positive against 50% of StepFun's.
法大大 ships an update every 6 weeks, StepFun every 9 days. The most recent releases landed on October 3, 2026 and October 14, 2026 respectively.
| Parameter | 法大大 | StepFun |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (2 ratings) | 4.3 (8 ratings) — better |
| Positive reviews | 22.7% of reviews | 50.0% of reviews — better |
| Number of ratings | 2 | 8 — better |
| Update frequency | Every 6 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 9.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 27 MB | 114 MB |
| Age rating | 4+ | 17+ |
| Developer | 深圳法大大网络科技有限公司 | StepFun Intelligence Co., Ltd. |
Customer experience
法大大
StepFun
In-app purchases
法大大
- 1份个人签署套餐$0.99
- 5份个人签署套餐$5.99
- 公证处《签署文件存证证明》$6.99
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- 50份个人签署套餐$59.99
- 100份个人签署套餐$99.99
- 200份个人签署套餐$239.99
StepFun
- 入门月卡$3.991 Month
- 入门$5.991 Month
- 阶跃AI标准套餐$7.991 Month
Show 4 moreShow fewer
- 阶跃AI高级套餐$14.991 Month
- 进阶$29.991 Month
- 阶跃AI专业套餐$49.991 Month
- 专业$69.991 Month
- 限时一周卡$0.99
- 入门$5.99
- 基础包$5.99
Show 3 moreShow fewer
- 高阶包$14.99
- 进阶$29.99
- 专业$69.99
