| ReviewBasics | No | 25MB | Free | Yes | DOC, DOCX, PPT, PPTX, JPG, JPEG, GIF, PNG, TIFF, PDF, ZIP containing images, FLV, WMV, AVI, MPG |
| Uptogo | No | 100MB | Free | Yes | DOC, PPT, JPG, JPEG, GIF, PNG, TIFF |
| Cozimo** | No | 10MB | Free | Yes | JPG, TIFF, TGA, GIF, PDF, MOV, AVI, WMV |
| Thinkature | Text + Voice | N/A | Free | Yes | JPG, GIF, PNG |
| ConceptShare* | No | 1GB | Free | Yes | JPG, JPEG, TIFF, BMP, GIF, PNG, PSD, CPT, CDR, EPS, WMF, AI, EMF, PDF, AVI, DIVX, MP2, MP4, MPG, WMV, PDF, DWG, SWF, PDF, DWG, DOC, DOCX, XLS, XLSX, PPT, PPS, RTF |
| Vyew* | Text | 25MB | Free | Yes | DOC, XLS, PPT, JPG, GIF, PNG, SWF, TXT, RTF, MP3, FLV |
| Octopz | Text + Video + Voice | 1GB | $99 | Yes | DOC, DOCX, XLS, XLSX, PPT, PPTX, PPSX, WPD, RTF, TXT, BMP, EPS, GIF, JPG, JPEG, PCX, PNG, PSD, TGA, TIF, TIFF, PDF, ASF, AVI, MPEG, MPG, MOV, M4P, 3GP, WMVS, WF, FLV, MP3, DAE, 3D Panoramas |
| FineTuna | No | N/A | Free | Yes | BMP, GIF, JPG, JPEG |
| Backboard* | No | N/A | Free | Yes | DOC, DOCX, XLS, XLSX, PPT, PPTX, WPD, ODT, ODP, ODS, TXT, PDF, GIF, JPEG, PNG, TIFF, BMP, PSD |
| ProofHQ** | No | 50MB | Free | Yes | DOC, PDF, PPT, JPG, BMP, TIF, GIF, PNG, ZIP |
| Flowchart | Text | N/A | Free | Yes | BMP, Vector graphics, Flowchart files |
| Redmark | No | N/A | Free | Yes | JPG, PNG, PDF |