Comparison

MPP Viewer vs Gantt Chart

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

MPP Viewer

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Open .mpp files (created in Microsoft Project) directly on your iPhone, iPad, or Mac — no subscription, no cloud, no Microsoft Project required. MPP Viewer lets you view, explore, and share project plans stored in .mpp format. Whether a colleague sends you a project file or you need to review a schedule on the go, MPP Viewer opens it instantly and renders it as a crisp, publication-quality Gantt chart — entirely on your device. KEY FEATURES - Open .mpp files — supports a wide range of .mpp file versions - Interactive Gantt view — browse tasks, milestones, and timelines with ease - Publication-quality PDF export — generate a shareable Gantt PDF in seconds - Task list view — review all project tasks, dates, and durations at a glance - 100% offline — all parsing, rendering, and PDF generation happens on-device - No account, no subscription, no data ever leaves your device - Native app — Used by project managers, consultants, freelancers, and anyone who receives .mpp files from colleagues or clients. PRIVACY FIRST MPP Viewer is a pure offline application. No servers are operated by the developer, and no project data is ever transmitted externally. Everything stays on your device. --- LEGAL NOTICE MPP Viewer is an independent application and is not affiliated with, endorsed by, or sponsored by Microsoft Corporation. "Microsoft Project" and ".mpp" are trademarks of Microsoft Corporation. MPP Viewer uses a custom-built binary parser to read .mpp files and does not use or distribute any Microsoft software.

About

Gantt Chart

Features
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A simple, easy-to-read Gantt chart app for iPhone and iPad. See your project schedule as bars and adjust dates directly with your finger. ā–  Clear Gantt chart • Switch between day, week and month views • Today is marked with a red line; weekends are shaded • Task names and dates stay pinned while you scroll in any direction • Milestones (ā—†) supported ā–  Adjust schedules by touch • Touch and hold a bar and drag to move it by days • Drag either end of a bar to lengthen or shorten it • Tap to edit details ā–  Progress and checklists (checklists: Premium) • Completion checkmarks and progress for every task • Add a checklist to a task and let its completion drive progress automatically • Overall project progress is calculated for you ā–  Reminders (Premium) • Get notified on the start date, the day before, the end date, the day before the end, or at a custom time • Move the schedule and reminders follow along ā–  Share with your team (Premium) • Share and sync projects with others using Google Drive • Edits to different tasks made at the same time are both kept • Each person who shares needs Premium ā–  Designed for iPad too • Project list and Gantt chart side by side • Dark Mode supported The Gantt chart, progress tracking and other basic features are free. Checklists, reminders and sharing come with Premium (one-time in-app purchase). No account needed. Your data stays on your device.

Screenshots

MPP Viewer4 screens
Gantt Chart3 screens

Verdict

The call

The clearest difference is price: Gantt Chart at Free against MPP Viewer's $9.99. Gantt Chart also leads on update cadence (every 2 days vs weekly). MPP Viewer's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Gantt Chart is free to download; MPP Viewer costs $9.99 up front. Gantt Chart sells 1 one-off in-app purchase. MPP Viewer asks for nothing beyond the download.

UpkeepUpdate frequency

MPP Viewer ships an update weekly, Gantt Chart every 2 days. The most recent releases landed on October 10, 2026 and October 9, 2026 respectively.

Scorecard3 real differences Ā· 3 level
MPP Viewer versus Gantt Chart: the parameters behind the verdict, then further details
ParameterMPP ViewerGantt Chart
Price$9.99Free — better
Update frequencyWeeklyEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS17.0 — better18.0
Further details — not scored
Size6 MB2 MB
Age rating4+4+
DeveloperCardinate Consulting LLCYOSHIYUKI UEMATSU

In-app purchases

None

MPP Viewer

No in-app purchases

1 purchases

Gantt Chart

One-time1
  • Premium$2.99

Questions

Is MPP Viewer free?
MPP Viewer costs $9.99, with no in-app purchases.
Is Gantt Chart free?
Gantt Chart is free to download, with in-app purchases available.
Do MPP Viewer or Gantt Chart have ads?
Neither MPP Viewer nor Gantt Chart shows ads.
Which is updated more often, MPP Viewer or Gantt Chart?
MPP Viewer ships an update weekly, and Gantt Chart every 2 days. Most recently, MPP Viewer was updated on October 10, 2026 and Gantt Chart on October 9, 2026.

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