KairoProject vs ByWhen
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
KairoProject
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Manage multiple projects with clear priorities. Know what to focus on and act before delays happen. When you run several projects at once, the real challenge isnβt tracking tasks. Itβs deciding what should move now. KairoProject helps you instantly identify priorities across all your projects, so your team stays focused on what really matters without overload or confusion. Built on the Critical Chain method and powered by AI, KairoProject gives you a clear, actionable view of your projects and resources at any moment. Key Features: β’ Instant priority across all projects See which project needs attention now and make better decisions, faster. β’ Portfolio view (multi-project clarity) Get a global view of all your projects in one place β no more guessing where to focus. β’ AI-assisted project creation Describe your project and let AI generate a structured plan adapted to your context. β’ Critical Chain insights Identify what can block progress and focus your efforts where it has the most impact. β’ Resource and workload management Understand how your team is used across projects and avoid overload. β’ AI delay analysis Detect early signs of delays and receive actionable recommendations.* β’ Full customization Adapt calendars, task durations, and team settings to your real-world constraints. Why KairoProject? Most tools help you organize tasks. KairoProject helps you decide what matters. Pricing and Terms β’ Free 14-day trial β’ Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Premium Plans: β’ Premium Monthly: 9.99 β¬/month, auto-renewal β’ Premium Annual: 95.99 β¬/year, auto-renewal β’ Manage or cancel anytime in your Apple ID settings β’ Cancellation applies to the next billing period Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Available on iPad version only.
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
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Verdict
KairoProject and ByWhen are too close to call on the numbers: across 6 compared parameters β price, update cadence, ads and in-app purchases among them β neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. KairoProject sells 2 in-app purchases, starting at $8.99 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.
KairoProject ships an update every 5 days, ByWhen every 3 days. The most recent releases landed on October 6, 2026 and October 5, 2026 respectively.
| Parameter | KairoProject | ByWhen |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 days | Every 3 days β better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad β better | iPhone |
| Requires iOS | 18.6 | 17.0 β better |
| Further details β not scored | ||
| Size | 27 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Matthieu Guillon | NiONlite LLC |
In-app purchases
KairoProject
- Premium monthly subscription14 Days trial$8.991 Month
- Premium Annual subscription14 Days trial$89.991 Year
ByWhen
- Monthly Premium$4.991 Month
- Annual Premium$39.991 Year









