Comparison

ByWhen vs Chronova AI

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ByWhen

Features
Read full description

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

About

Chronova AI

This app acts as an intelligent daily command center, integrating your calendar, goals, weather, health insights, and business tracking. It uses AI to provide planning suggestions and focus tools, helping you organize your day and improve productivity.

Highlights
  • Integrated calendar and event management
  • Goal setting and progress tracking
  • Live weather intelligence with planning signals
  • Apple Health integration for health insights
  • AI-powered daily planning and briefings
  • Focus and breathing tools
  • Business tracking for revenue and expenses
Features
Read full description

Your day, at a glance. Your next step, within reach. Chronova brings your schedule, goals, focus sessions, and optional Apple Health insights together in a personal daily workspace for iPhone, iPad, and Apple Watch. MEET ORBITAL See your day around a circular timeline. Find your current priority, upcoming commitments, and room for focused work. Choose your own colors and carry the same palette onto your Watch. TRY THE DAY BEFORE YOU CHANGE IT Day Simulator lets you compare focusing now, taking a break first, or starting 15 minutes later. Choose a 15-, 25-, or 45-minute session and look ahead through your schedule. Chronova checks available time, conflicts, and transition buffers. Review the suggestion, then apply it when you are ready. A FOCUS COMPANION ON YOUR WRIST Start and manage focus sessions from Apple Watch. Choose a shorter session, browse the chapters of your day, and keep your current task close. Phone and Watch share focus state and your chosen appearance. YOUR HEALTH CONTEXT, WITH YOUR PERMISSION Connect Apple Health to view supported sleep, activity, workout, heart, and breathing measurements. Compare readings with your own recent patterns, inspect sleep stages, and see when information was last recorded. Body & Focus can suggest a session length using available sleep context. A compact summary can also appear on your paired Watch. Health access is optional. Available data varies by device, recorded samples, and the permissions you grant. Health readings are processed locally and are not included in cloud planning requests. These features support everyday planning; they do not diagnose conditions or provide medical advice. PLAN AROUND WHAT MATTERS Organize calendar events, goals, priorities, and progress. Connect Apple Calendar when you choose. Use focus and breathing tools, explore weather, and keep your plans in one place. ON-DEVICE PLANNING Start planning without an account or AI key. Optional cloud-enhanced planning is available when you configure your own compatible AI API key in Settings. Cloud requests share your planning inputs and relevant app context with the provider; Health readings are excluded. Optional subscriptions are available where offered. Current prices and any trial terms are shown by the App Store before purchase. Manage or cancel subscriptions in your Apple account settings.

Screenshots

ByWhen4 screens
Chronova AI4 screens

Verdict

The call

The clearest difference is price: ByWhen at Free against Chronova AI's $0.99. Chronova AI's advantage is in-app purchases (none vs 3) and update cadence (every 2 days vs every 5 days). On 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

CostPrice · In-app purchases · Ads · Monetization

ByWhen is free to download; Chronova AI costs $0.99 up front. ByWhen sells 3 in-app purchases, starting at $4.99 per month. Chronova AI asks for nothing beyond the download.

UpkeepUpdate frequency

ByWhen ships an update every 5 days, Chronova AI every 2 days. Both last shipped on October 31, 2026.

Scorecard5 real differences · 5 level
ByWhen versus Chronova AI: the parameters behind the verdict, then further details
ParameterByWhenChronova AI
PriceFree — better$0.99
Rating—5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 5 daysEvery 2 days — better
AdsNoNo
In-app purchasesYesNo — better
Monetization—Freemium
DevicesiPhoneiPhone, iPad, iPod, Apple Watch — better
Requires iOS17.015.1 — better
Further details — not scored
Size10 MB90 MB
Age rating4+4+
DeveloperNiONlite LLCORTIZ VENTURE HOLDINGS LLC

In-app purchases

3 purchases

ByWhen

Subscriptions2
  • Monthly Premium$4.991 Month
  • Annual Premium$39.991 Year
One-time1
  • Lifetime Premium$79.99
None

Chronova AI

No in-app purchases

Questions

Is ByWhen free?
ByWhen is free to download, with in-app purchases available.
Is Chronova AI free?
Chronova AI costs $0.99, with no in-app purchases.
Do ByWhen or Chronova AI have ads?
Neither ByWhen nor Chronova AI shows ads.
Which is updated more often, ByWhen or Chronova AI?
ByWhen ships an update every 5 days, and Chronova AI every 2 days. Most recently, ByWhen was updated on October 31, 2026 and Chronova AI on October 31, 2026.

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