Yoko Timeline vs Gantt Chart
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Yoko Timeline
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【Horizontal Timeline Calendar】 See 7 days before to 7 days after at a glance. Scroll vertically and horizontally for a clear view of your schedule. ■ Features ・All-day / Timed / Reminders in a horizontal timeline. Overlapping events auto-stack in lanes ・Customizable lane order (drag to reorder in Settings) ・Uses your calendar's original colors. Reminders color-coded: Past=Red / Today=Yellow / Future=Blue / Completed=Gray ・All-day bar stays from 00:00, today's title starts from red line (now) for clarity ■ Reminder Actions ・Tap to toggle complete/incomplete ・Swipe right to edit, left to delete, long press for detail ・Context menu supported with haptic feedback ■ Use as Perpetual Wall Calendar ・"Follow Current Time" keeps red line centered, auto-scrolls every minute ・"Perpetual Calendar Mode" auto-returns to today at midnight and when returning from background ・Auto-refresh every 5 min via iCloud with same Apple ID ・Perfect for old iPhone/iPad as always-on wall calendar ※ Set iOS Settings > Display & Brightness > Auto-Lock > Never ■ More ・No ads in Presentation Mode ・Toggle visible calendars ・Undo support ・Move day, go to today, refresh
Gantt Chart
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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. ■ 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 (◆) supported ■ 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 ■ 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 ■ 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 ■ 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 ■ 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
Verdict
The clearest difference is in-app purchases: Yoko Timeline at none against Gantt Chart's 1. Gantt Chart's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement 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. Gantt Chart sells 1 one-off in-app purchase. Yoko Timeline asks for nothing beyond the download.
Yoko Timeline ships an update daily, Gantt Chart every 2 days. The most recent releases landed on October 3, 2026 and October 9, 2026 respectively.
| Parameter | Yoko Timeline | Gantt Chart |
|---|---|---|
| Price | Free | Free |
| Update frequency | Daily — better | Every 2 days |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 4 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | katsuyasu sakita | YOSHIYUKI UEMATSU |
In-app purchases
Yoko Timeline
No in-app purchases
Gantt Chart
- Premium$2.99








