Days Until vs ByWhen
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Days Until
This app helps you intentionally track important dates and deadlines in a clean, vertical list. It's designed for everyday life and professional use, keeping your crucial dates organized and visible without clutter.
- Clean vertical list of all upcoming dates
- Date-only or timed deadlines
- Color-code related countdowns
- Add notes for context
- Manual list reordering
- Mark complete, restore, or duplicate
- No account required
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Days Until: Countdown If you're anything like me, you may have tried to keep everything in your brain, at once. I created Days Until: Countdown because I wanted a tool where I can practice intentionality (e.g., pausing and inputting the dates that were important). View this app as a relationship with intentionality, to pause, breathe, and track the things important to you. It's helpful to see your countdowns in one clean vertical list. Built for everyday life and professional work: lawyers tracking filing dates, legal assistants watching response deadlines, office managers keeping team dates visible, students watching exams, and anyone who wants important dates out of their head and in one clear place. Use Days Until for: Legal and filing deadlines Bills, rent, and renewal dates School assignments and exams Office deadlines and follow-ups Trips and travel dates Birthdays and anniversaries Job applications Project milestones Appointments Anything coming up Why people choose Days Until: All upcoming dates in one clean vertical list Date-only or timed deadlines Color-code related countdowns Add notes for context Reorder your list manually Mark complete, restore, or duplicate in a tap Delete safely with confirmation No account required Your countdowns stay on your device Simple on purpose. No calendar clutter. No task-manager sprawl. No dashboard noise. One paid download. No subscription. Just the dates that matter, with the time remaining easy to see. Terms: https://myworkingmemory.ai/countdowns-terms.html Privacy: https://myworkingmemory.ai/countdowns-privacy.html
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 price: ByWhen at Free against Days Until's $1.29. Days Until's advantage is device support (4 vs 1). On update cadence, ads, in-app purchases 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
ByWhen is free to download; Days Until costs $1.29 up front. Days Until sells 2 in-app purchases, starting at $1.99 per month and ByWhen sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
Days Until ships an update weekly, ByWhen every 3 days. The most recent releases landed on September 19, 2026 and September 18, 2026 respectively.
| Parameter | Days Until | ByWhen |
|---|---|---|
| Price | $1.29 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Weekly | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Mac, Vision Pro — better | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 2 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Myworkingmemory LLC | NiONlite LLC |
In-app purchases
Days Until
- Monthly Subscription$1.991 Month
- Annual Subscription$18.001 Year
ByWhen
- Monthly Premium$4.991 Month
- Annual Premium$39.991 Year








