# Onplana Schedule — MPP Viewer and Gantt Editor > MPP Viewer and Gantt Editor (iPhone/iPad app by Onplana.) - Source: https://appshunter.io/ios/app/onplana-schedule/id6814236789 (this page in markdown: same URL + `.md`) - Developer: [Onplana](https://appshunter.io/developer/6796715349) - Category: Productivity, Business - Price: Free - Age rating: 4+ - Requires: iOS 17.4 · 12 MB - Languages: American English, Arabic, French (France), German (Germany), Italian, Japanese, Brazilian Portuguese, Chinese (Simplified, China), European Spanish - Released: 2026-10-01 - Data updated: 2026-11-01 ## What is Onplana Schedule? Onplana Schedule is a free app for iPhone and iPad that opens, edits and reschedules Microsoft Project .mpp files without Microsoft Project, and also opens Primavera P6 .xer, Project XML, ProjectLibre, GanttProject and Excel plans as a Gantt chart. Microsoft Project XML files open on your device with no internet connection. Other formats need one: they are uploaded to Onplana's servers to be converted, and the uploaded copy is deleted within 3 days, and removed from backups 7 days after that. How do I open an .mpp file on my iPhone? Tap Open a file and choose it in Files, or share it to Onplana Schedule from another app. The plan opens as a list of tasks or as a timeline, with the links, milestones and critical path. What is an .xer file? A schedule exported from Primavera P6. It opens as a plan and saves as Microsoft Project XML; the .xer file is never changed. What is the critical path? The chain of tasks with no float: if one slips, the finish moves. It is drawn in red, and Critical tasks only narrows the list to it. How do I check a schedule against the DCMA 14 points? Open Quality. The 14 checks, from logic and leads to CPLI and BEI, run on your device. Nothing is uploaded, and each finding shows its tasks. How do I compare two versions of a plan? Choose Compare with another version. The Changes view lists the tasks added, removed or changed. Edit on your iPhone Tap a task to change its name, start, finish, duration, percent complete and predecessors, add a subtask, or indent it. Drag a bar on the timeline, or select several tasks and change them together. Each change reschedules the linked tasks, and Undo takes it back. Save and share Save writes back to the file you opened in Files. A file opened as .mpp, or one sent from another app, saves as a new Project XML file where you choose, so the original is never overwritten, and a recovery copy is kept while you work. Share sends the plan as Project XML, the task table as CSV, or the chart as a PDF or picture. On iPad The full Gantt chart beside the task grid. Pinch to zoom, move a bar or draw a link with a finger, and work beside another app in Split View. Resource usage shows each resource's work by month, week or day. Also Ten built-in templates or a blank schedule, with no account. A free Schedule Health Check report by email. In nine languages. Generative AI Describe a project and Ask AI use generative AI, on Onplana's servers and an AI provider, only when you choose them. Describe a project writes a plan from what you type. Ask AI answers questions about the open plan and suggests changes you review before they apply; it needs an Onplana account and never sends the file. On iPad, Optimize with AI rewrites a copy of the plan you checked to level resources, compress the timeline or reduce risk. Review AI results before you rely on them. Report a problem through Feedback in Settings or support@onplana.com. Know what leaves your device A Microsoft Project XML file is uploaded only when you choose a health check or a publish. Before it uploads a file without an account, the app names the file and asks. Project ribbon commands Signed in to an Onplana organization whose plan includes them: Set baseline (Baseline and Baseline 1 to 10, with variance) and Move project, and on iPad also Links between projects, Subproject, Manage sprints and Schedule risk. What a file already carries shows for everyone. Share a copy Publish imports a copy into a free Onplana workspace (2 projects, 5 members) that your team opens in a browser. The original file is not changed. What it opens .mpp, .mpt, .mpx, .xer, Primavera P6 XML, Microsoft Project XML, ProjectLibre .pod, GanttProject .gan, Excel .xlsx and .csv. ## Is Onplana Schedule safe? Not enough ratings yet to assess Onplana Schedule. ## Is Onplana Schedule legit? Onplana Schedule has limited verification signals. The AppsHunter Legitimacy Score for Onplana Schedule is 58 out of 100 points across 7 verification signals from App Store and developer data. ## Version history (last 1 release) ### 1.0 — 2026-10-31 No release notes. ## More apps by Onplana - [Onplana Tasks](https://appshunter.io/ios/app/onplana-tasks/id6796715346) All apps by Onplana: https://appshunter.io/developer/6796715349 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-01.*