Task Tree vs ByWhen
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Task Tree
This task manager allows you to organize your to-do lists using a hierarchical tree structure. It automatically updates progress based on subtasks and offers iCloud backup for your data. Create unlimited subcategories to manage complex projects.
- Tree structured tasks
- Automatic progress status updates
- iCloud backup and restore
- Unlimited subcategory depth
- Easy-to-use interface
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Task Tree — Organize anything as a tree Task Tree is a simple, powerful task manager built around tree‑structured tasks. Break any goal into projects, tasks, and subtasks — to any depth — and watch progress roll up automatically from the smallest detail to the big picture. Planning a trip, shipping a product, or just keeping a to‑do list? Task Tree keeps everything in a clear hierarchy that's easy to navigate. WHY TASK TREE • Think in trees — Nest tasks as deeply as you need. Big goals become projects; projects break down into tasks and subtasks. • Automatic progress — Check off the leaves and every parent task and project updates its progress for you. • See the whole picture — The Projects screen shows each project's progress, completion count, and due status at a glance. FEATURES • Unlimited subtask depth • Projects with live progress bars and due‑date tracking • Inline due dates with a built‑in calendar • Move a task (and its subtasks) anywhere — or promote it to its own project • Duplicate a task and its entire subtree • Drill‑down and full hierarchy views • iCloud backup & restore — keep your tree safe • Noteholic integration — send a tree to Noteholic, or import a note as a project (indentation becomes your hierarchy) Simple enough for a grocery list, structured enough for a big project. Plant your first tree today.
ByWhen
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A deadline is not just a date. It is a promise your future self needs help keeping. ByWhen helps you turn important tasks into practical reminder plans. Instead of relying on one alert, ByWhen looks at what needs to be done, when it is due, how long it may take, what kind of attention it needs, and when your day has realistic space for it. Add a task, set the due date, estimate the effort, choose the task type, and ByWhen helps you stay aware of the work before it turns into last-minute pressure. ByWhen is built for: - Work projects with real due dates - Assignments, exams, and study sessions - Calls, forms, paperwork, and admin tasks - Errands that need time away from home or work - Personal tasks that are easy to postpone - Daily, weekly, monthly, yearly, and selected-day routines DEADLINE PLANS ByWhen helps you think beyond a simple due date. It considers time remaining, estimated effort, task priority, task type, and available windows in your day. A short call can fit differently than a focused work session. An errand that requires leaving home can be treated differently from a quick task you can do during a break. REMINDERS WITH CONTEXT ByWhen keeps the deadline visible as time passes. It highlights whether a task is on track, needs attention, is at risk, or has become critical. If you do not act on a reminder right away, the task remains part of your plan so you can return to it later. OPEN-TIME PLANNING With your permission, ByWhen can use calendar busy blocks to avoid suggesting times that are already occupied. You can choose what to include, ignore imported blocks, and keep control of your schedule. ROUTINE SETTINGS Set your wake time, sleep time, work hours, and workdays so reminder timing fits your real life. ByWhen can avoid unhelpful times and protect parts of the day when reminders would not make sense. TASK TYPES Different tasks need different kinds of time. ByWhen supports task types such as focused work, admin, calls, study, errands, and away-from-home tasks. This helps ByWhen suggest more realistic moments instead of treating every reminder the same way. REPEATING TASKS Create repeating tasks for daily, weekly, monthly, yearly, or selected days of the week. When you complete a repeating task, ByWhen moves the next cycle forward so you are not reminded again for the period you already finished. QUICK ACTIONS Act from a reminder when possible. Start work, be reminded later, log time, or mark the task done so your plan can stay up to date. PRIVATE BY DESIGN ByWhen is built with privacy in mind. Your tasks, schedule blocks, routine settings, and reminder plans stay on your device. No account is required to start. If you choose to export a backup, it goes to your own selected destination. BYWHEN PREMIUM Your first 7 days are ByWhen Premium. During this time, all smart planning features are available. ByWhen Premium keeps every reminder active and unlocks the full planning experience, including unlimited active reminders, deadline plans, open-time planning, task-specific reminder styles, repeating tasks, quick actions, and routine personalization. After the first 7 days, your reminders stay safe, but Premium is required to keep all smart reminders active. Download ByWhen and give your deadlines a plan you can trust. Privacy Policy: https://nionlite.com/bywhen-privacy.html Terms of Use: https://nionlite.com/bywhen-terms.html
Screenshots
Verdict
The clearest difference is in-app purchases: Task Tree at none against ByWhen's 2. Task Tree also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). ByWhen's advantage is update cadence (every 3 days vs every 56 months). On price and ads 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. ByWhen sells 2 in-app purchases, starting at $4.99 per month. Task Tree asks for nothing beyond the download.
Task Tree ships an update every 56 months, ByWhen every 3 days. The most recent releases landed on September 25, 2026 and September 18, 2026 respectively.
| Parameter | Task Tree | ByWhen |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (7 ratings) — better | — |
| Positive reviews | 62.5% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 56 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 4 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | NIK | NiONlite LLC |
In-app purchases
Task Tree
No in-app purchases
ByWhen
- Monthly Premium$4.991 Month
- Annual Premium$39.991 Year









