You have a web application, but want a full-featured office editor to handle document management from within the app.   
Your business policy prohibits keeping customer data in a public cloud. So you need a solution that allows you to store these documents on your own servers, to ensure data compliance.   
Business users should have a seamless experience when they view, edit, and collaborate on Word, Excel, and Powerpoint files online. An integrated office solution should work on all modern browsers and support all popular document formats.    
You want a document management solution that's easy to implement with minimal configuration and doesn't involve additional hardware costs.   
The integrated office solution should have an affordable and flexible pricing model.   
   
While MS WOPI does the job well, it's also expensive and difficult to implement. Zoho Office Integrator ticks all the boxes when it comes to meeting the content editing needs of your business, without all the complications.   
| 
            Features   
             | 
           Zoho Office Integrator   
            | 
           MS WOPI   
            | 
| 
              Solution   
             | 
             Integrate Zoho Office Online with your web 
             
             app. 
             | 
              Integrate MS Office Online with your 
              
              web app. 
              | 
| 
              Integration   
             | 
             Embed editors in iframes. PostMessage APIs 
             
             help communicate between web app host 
             
             page and iframe. 
             | 
            Opens editor only in a browser tab or 
            
            window. No embedding allowed. 
            | 
| 
              Customisations   
             | 
             Customise editor preferences and document  
             
             defaults with advanced parameters. 
             | 
             Doesn't allow for customisation of 
             
             editor features. 
             | 
| 
              Limitations   
             | 
             Complete feature parity in all online office 
             
             editors - Writer, Sheet, and Show. 
             | 
             Word Online lacks many of 
             
             the  
             features  of the desktop app, and  
             
            some features work differently in the 
            
            two. 
            | 
| 
              Extend API Functionality   
             | 
            No such functionality. 
            | |
| 
             File Limits   
            | 
             Writer - Docx file: 50 MB, Other file formats: 10 MB  Sheet - 25 MB 
              Show - 512 MB 
             |  Word - 100 MB 
            
            Excel - 25 MB 
            
            PowerPoint - 300 MB 
            | 
| 
              Storage Format   
             | 
             Stores all popular document formats - MS 
             
             Office/Open Office/HTML/txt 
             | 
            Stores only in MS Office formats. 
            | 
| 
              Supported Formats   
             |  List of supported file formats. | 
            docx, doc, rtf, pptx, ppt, xlsx, xls, pdf, txt | 
| 
              License Model   
             | 
             For web editing, users don't need to have a 
             
             Zoho account. 
             | 
             For web editing, users need a Office 
             
             365 account. 
             | 
| 
              Pricing   
             | 
             Usage-based 
             pricing plans  - commercial and 
             
             non-commercial. 
             | 
            User-based Office 365 subscription 
            | 
| 
              Forever-free plan   
             |   |   | 
| 
             Starts at   
            | 
            $50/Month  
             
            No user subscription required. Flexible pay-as-you-use model.  
             | 
            $240  
             
            Business user subscription required for document edits. $20 per user/month, billed annually.  
             | 
| 
             Authentication   
            | 
             Single Zoho account for authenticating 
             
             open/edit document requests. Users don't 
             
             have to create individual accounts in Zoho. 
             | 
             Office 365 subscription mandatory. 
             
             Each user is prompted to authenticate 
             
             with a Microsoft/Office 365 account to 
             
             edit documents. 
             | 
| 
             Ease of Integration   
            | 
             Implementation in 2 easy steps: 
             
              1. Open/view/edit/co-edit documents with 
              
              standard API requests. 
              
              2. Save edited documents back to your 
              
              storage server with a saveurl method. 
              | 
              Fairly complex WOPI protocols, and 
              
              requires separate implementation to 
              
              "view" and "edit" documents. 
              
              1. To support document view, WOPI 
              
              hosts must implement CheckFileInfo 
              
              and GetFile modules. 
              
              2. To support document edit, WOPI 
              
              hosts must implement other modules: 
              
              PutFile, PutRelativeFile, Lock, Unlock, 
              
              UnlockAndRelock, RefreshLock. 
              | 
| 
              Server Requirements   
             | 
             Office Integrator solution runs on any server 
             
             environment (including Linux). 
             | 
             MS WOPI runs only on Windows 
             
             servers. 
             |