Underway vs Firefly Todo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Underway
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Open Underway and you land on today. Type one plain line and it becomes a dated entry. Scroll back a month and it is all still there, ticked off, on the day you did it. The days behind you sit just above, the days ahead just below, and you scroll straight through them, back through last year or forward into next. If you have ever dated a page in a paper notebook and written one line per thing, this is that, typed. Write "lunch with Sam friday 2pm #work" and Underway pulls out the date, the time and the tag on its own. Type ! or !! to mark a line important. No forms, no fields, no five taps to write down one thing. A line can be a trip, a day off, a bill, an appointment, a birthday, or where someone else in the family is that afternoon. A calendar wants a start time and an end time. A to do list wants a checkbox. A lot of life is neither, and all of it can go in here and still be findable months later. Finished tasks do not vanish. They stay on the day you did them, quietly greyed, so scrolling back through last month shows you what you actually got done. Your plan for the year and your record of it are the same thing. There is nothing to set up. No projects, no lists to build first. You open it and start typing. WHAT IS IN IT • Dates and days of the week are tinted, so a glance tells you where you are. • A switch to hide finished lines, if you would rather see only what is left. • Overdue in one move. A banner counts what slipped and offers to bring it all to today, or clear it. • Tags and priorities you type, not pick from a menu. # for a tag, ! for important. • Search across everything, still fast at tens of thousands of entries, and a calendar view to jump to any date. • Vault, for anything that has no date yet, with an optional nudge to look through it. • Repeats. Daily, weekly, monthly or yearly, ending on a date or after a count. Change one, or change this one and every one after it. • Optional reminders on anything with a time, and birthdays brought in from Contacts once so they come back every year. • Widgets on your Home Screen and Lock Screen. Tap one to land on the task. • Apple Watch. Today, overdue and the week ahead on your wrist. Tick things off, or dictate a new line and it arrives on your phone. • A look back, if you want one. How often you finish on time, what you added and completed, and how long your streak is. • Themes, palettes and paper textures. • Backups you keep. Take out a full copy, or a lightweight one you can read in any text editor, and import it back whenever you like. NO ACCOUNT, NO SERVER No sign in. No ads. No trackers. Your tasks are not sent to us, and there is nowhere for us to send them. Everything lives on your iPhone, your watch talks straight to your phone, and you can take a copy out whenever you want. Free, with nothing to buy inside. Available in English, Spanish, French, German, Japanese, and Simplified Chinese.
Firefly Todo
Visually plan your day by dragging tasks into your calendar. Capture ideas, schedule them flexibly, and track your actual progress to understand your productivity. Offers AI assistance for smarter planning and syncs across Apple devices.
- Visual task-to-calendar dragging
- Flexible and fixed scheduling options
- Task execution time tracking
- Progress review and insights
- AI-powered planning assistance
- iCloud synchronization
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Plan your day visually. Drag tasks into your calendar, stay flexible, and see your progress. Firefly Todo brings your to-do list and calendar together in one simple workspace. Capture tasks as they come, drag them into your schedule, track what you actually do, and reflect on your progress — without the pressure of planning every minute. Whether you're organizing your workday, planning your week, or managing personal projects, Firefly Todo helps you turn scattered tasks into a plan you can actually follow. CAPTURE FIRST, PLAN LATER Clear your mind with a simple task inbox. Save ideas, errands, and to-dos instantly without deciding when to do them. Organize and schedule them when you're ready. DRAG TASKS INTO YOUR CALENDAR Planning should feel effortless. Drag tasks from your inbox directly onto your calendar. Rearrange your schedule visually as priorities change. FLEXIBLE OR FIXED SCHEDULING Not everything needs an exact time. Use flexible daily, weekly, or monthly planning for tasks you want to complete within a period. Choose fixed scheduling when timing matters. TRACK WHAT YOU ACTUALLY DO Go beyond checking tasks off. Record execution time and progress, and keep a log of your work to understand how your day really unfolds. REVIEW YOUR PROGRESS See the difference between what you planned and what you accomplished. Explore completion trends, overdue tasks, activity heatmaps, and other insights to improve your planning over time. SMARTER PLANNING WITH AI Let Firefly help you identify overdue tasks, organize your workload, and adjust your plans with less manual effort. Available AI capabilities depend on your plan. STAY IN SYNC Keep your tasks and calendar in sync across iPhone, iPad, and Mac using iCloud. Capture something on your phone and continue planning on your Mac. MADE FOR CALMER PRODUCTIVITY Firefly Todo combines task capture, visual calendar planning, execution tracking, and reflection in one place. Plan. Do. Reflect. FREE TO START. FLEXIBLE WAYS TO UPGRADE. Download Firefly Todo for free and explore its core planning features. Unlock additional Premium features with the option that works best for you: Subscription: Enjoy Premium features with a recurring plan. Lifetime Purchase: Pay once to unlock Premium permanently, with no recurring subscription fees. Whether you prefer a subscription or a one-time purchase, Firefly Todo gives you the freedom to choose. Your privacy matters. Firefly Todo uses iCloud for Apple-device synchronization. Please refer to our Privacy Policy for details on data processing and optional online features. Privacy Policy: https://tcnxzymbii7r.feishu.cn/docx/Exged5fh3o1LSBxNYR8clFl5nZf?from=from_copylink Terms of Use: https://tcnxzymbii7r.feishu.cn/docx/BqoFd0yXto3eLUxgnhKcJEY5n8f?from=from_copylink
Screenshots
Verdict
The clearest difference is in-app purchases: Underway at none against Firefly Todo's 4. On price, ads, 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. Firefly Todo sells 4 in-app purchases, starting at $1.99 per month. Underway asks for nothing beyond the download.
| Parameter | Underway | Firefly Todo |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | — | Every 6 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Mac |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | Cylandea Systems LLC | 馨洁龙 郑 |
In-app purchases
Underway
No in-app purchases
Firefly Todo
- Monthly Pro Subscription$1.991 Month
- Quarterly Pro Subscription$4.993 Months
- Yearly Pro Subscription$9.991 Year
- Firefly Todo‑Lifetime Unlock$9.99









