ArcDay vs Not To
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ArcDay
Visualize your important dates, habits, and personal milestones as beautiful 'Time Arcs.' Track countdowns, maintain streaks, and reflect on your progress with daily check-ins and a calendar view. Customize your arcs with neon themes and see your time at a glance.
- Countdown to important dates
- Track habit streaks
- Visualize time periods as arcs
- Daily check-ins and reflections
- Arc calendar for reviewing past events
- Home screen widgets
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ArcDay is a countdown widget, habit tracker, D-Day calendar, and time progress app that turns important dates and routines into beautiful Time Arcs. Track the days you wait for, the habits you keep, and the chapters you live through — all in one visual timeline. Main features • Countdown / D-Day Count down to trips, birthdays, exams, anniversaries, concerts, launches, and important events. • Habit Streaks / D+ Track routines like exercise, study, reading, no smoking, sobriety, daily goals, and personal challenges. • Chapter Arc Follow time periods with a start and end date, such as travel, projects, vacations, exam prep, or challenges. • Progress Arc See how today, this week, this month, and this year are moving with beautiful progress arcs. • Check-ins & Notes Add your mood, reason, and one-line notes to remember why each arc matters. • Arc Calendar View countdowns, streaks, notes, birthdays, milestones, and chapters by date. • Home Screen Widgets Keep your most important countdowns, habits, and chapters visible on your Home Screen. ArcDay is made for people who want more than a simple countdown timer. It helps you see time, stay motivated, and keep meaningful dates close. Use ArcDay to: • Count down to important dates • Build habit streaks • Track D-Day events • Follow personal chapters • Record daily notes • See progress at a glance • Add beautiful widgets to your Home Screen Turn your time into a beautiful arc. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Not To
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What could change if you stopped adding more things to do—and started choosing what not to do? Not To-Do is a habit tracker that helps you set behaviors you want to avoid, record your daily progress, and create more space for what matters. Spend less time on social media. Avoid staying up too late. Stop comparing yourself to others. Do not skip meals. Choose the habits you want to reduce, then record what you successfully avoided each day. Your daily progress becomes distance. As you continue, you travel through quiet worlds and unlock beautiful new scenery. Each small choice becomes part of your own journey. WHAT YOU CAN DO • Create your own Not To-Do list • Record the items you successfully avoided • Track your current streak • Earn distance from daily records • Travel through different worlds • Unlock scenery as you progress • Review your success rate • Record why a habit was difficult to avoid • View weekly and monthly progress • Set a daily reminder • Export your record data FOCUS ON WHAT YOU ACHIEVED Not To-Do is not designed to make you feel guilty about the things you could not avoid. Instead, it helps you recognize what you managed to do and understand your habits over time. You do not need to be perfect. By gradually reducing unnecessary behaviors, you can create more time and space for the life you want. TRAVEL BY BUILDING BETTER HABITS Each daily record adds distance to your journey. Every world contains different scenery that unlocks as you progress. Keep recording consistently to earn streak bonuses and move further through your current world. Your habit journey becomes a calm visual experience rather than another list of tasks. REVIEW YOUR PROGRESS The Records screen helps you understand your patterns through: • Total distance traveled • Distance earned during a selected period • Success rate • Number of recorded days • Reasons certain habits were difficult to avoid The goal is not to judge your results, but to better understand your everyday behavior. NOT TO-DO PRO Upgrade to Pro to expand your journey. • Unlock all 7 worlds and 49 sceneries • Switch freely between worlds • View your complete record history • Access more detailed progress insights • Add more Not To-Do items • Remove advertisements Pro is available as a one-time purchase. It is not a subscription. RECOMMENDED FOR PEOPLE WHO WANT TO • Reduce excessive smartphone or social media use • Improve sleep and daily routines • Build habits without pressure • Simplify their everyday life • Keep a lightweight daily journal • Stay consistent through visual progress • Try an alternative to traditional to-do lists • Improve their lifestyle without blaming themselves Choose what not to do. Protect your time and peace of mind. Start your quiet journey with one small record today.
Screenshots
Verdict
ArcDay and Not To are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. ArcDay sells 3 in-app purchases, starting at $2.99 per month and Not To sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
| Parameter | ArcDay | Not To |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 weeks | — |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 37 MB | 61 MB |
| Age rating | 4+ | 4+ |
| Developer | ChangHyun Nam | Yuhei Miyata |
In-app purchases
ArcDay
- 메멘토 Pro (월간)$2.991 Month
- Memento Pro Monthly$19.991 Year
- ArcDay Premium$0.99
Not To
- Not To-Do Pro$2.99









