Comparison

DayZen vs SinceWhen

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

Head to head
About

DayZen

This app transforms your schedule into a visual 24-hour clock, making time concrete and manageable. It's designed to combat time blindness and anxiety for neurodivergent individuals by visualizing tasks as colored arcs on a clock face.

Highlights
  • Visual 24-hour clock schedule
  • Task arcs and time blocking
  • ADHD-friendly interface
  • Live Activities & Dynamic Island
  • Immersive Focus Mode
  • Calendar integration
  • Home Screen widgets
Features
Read full description

STOP LYING TO YOUR CALENDAR. To-do lists feel infinite. If you have ADHD, lists are just a source of anxiety. You keep adding tasks, but reality keeps disagreeing. You schedule 10 pounds of work into a 5-pound day, and then feel guilty when you don’t finish. DayZen: Visual Time Planner transforms your daily schedule from a stressful list into a logical 24-hour visual clock. Tasks become colored arcs. When the circle fills, it’s full. No more pretending a 3-hour project fits into a 30-minute gap. It is the ADHD planner that finally works. Design your time. See your visual schedule. Find your focus. WHAT’S NEW IN VERSION 2.0 We’ve rebuilt DayZen to be the ultimate time management companion for the neurodivergent mind. - Live Activities & Dynamic Island: Track your active focus time, remaining duration, and progress without unlocking your phone. - Immersive Focus Mode: A full-screen focus timer designed to eliminate ADHD distractions, complete with haptic feedback. - Deep Insights: Analyze your time usage patterns with new interactive charts for daily, weekly, and yearly trends. WHY THIS IS THE ULTIMATE ADHD PLANNER For the ADHD brain, time is abstract. DayZen makes time concrete. CONQUER ADHD TIME BLINDNESS Don't just read your schedule: see your time. DayZen acts as a visual timer and planner to fix time blindness. Drag and drop tasks onto the clock face and resize them with a finger. Conflicts glow red instantly so you can fix your daily routine before the day starts. INTUITIVE TIME BLOCKING Forget rigid spreadsheets that kill dopamine. Simply drag a slice of time to create a task. It’s the fastest, most tactile way to build a daily schedule using the time blocking method. STAY ON TRACK WITH WIDGETS Keep your visual day at a glance. Our beautiful Home Screen widgets show your current time block and what’s coming next to prevent executive dysfunction. SYNC WITH REALITY Seamlessly integrates with your Apple Calendar. Your meetings, classes, and time blocks live in one unified visual circle. BUILD BETTER HABITS Set recurring tasks once (e.g., "Morning Meds" or "Deep Work") and let DayZen protect that time forever. WHO IS DAYZEN FOR? -Adult ADHD & Neurodivergent Minds: If you struggle with time blindness, focus, or maintaining a routine, this is the ADHD tool you’ve been waiting for. -Visual Thinkers: For those who are allergic to endless text-based task lists. -Students & Freelancers: Perfect for Pomodoro focus sessions and managing irregular daily plans. -Over-committers: Learn the power of saying "no" when you see your time circle is full. PRIVATE BY DESIGN Your schedule is your business. DayZen requires no account and collects no data. There are no ads, ever. PRICING - Free Forever: Enjoy the full radial clock, 10 active tasks, and basic visual planning features. Experience the difference of visual time management. - Premium: Unlock unlimited tasks, advanced time statistics, two-way calendar sync, and Dynamic Island support. THE REAL DIFFERENCE Other planner apps ask, "What do you want to do?" DayZen asks, "What time actually fits?" See the circle. Respect the clock. Own your day. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: http://kavolis.xyz/dayzen/privacy-policy

About

SinceWhen

Effortlessly track irregular tasks and chores without the pressure of daily streaks. Record events with a tap, receive gentle reminders, and visualize your progress with smart intervals and custom charts. Keep your mind clear by letting the app manage your unique rhythms.

Highlights
  • Zero-friction logging with widgets
  • Gentle, custom nudges and offline reminders
  • Smart intervals and dynamic sorting
  • Visual history with auto-scaling charts
  • Total customization with colors and emojis
  • 100% private and secure, on-device data
Features
Read full description

Stop asking, "When did I last do that?" SinceWhen is the guilt-free "days ago" and time since tracker built for real life. Standard habit trackers demand daily streaks, but most of life doesn't happen every 24 hours. You change the AC filter, water plants, get a haircut, or track your cycle on an irregular schedule. Logging these in a normal routine app breaks your streak and hits you with a red ring of failure. SinceWhen is the anti-streak event log and day counter. No daily pressure—just a clean, stress-free timeline showing exactly how long it has been since the last time. TRACK ANY IRREGULAR ROUTINE OR CHORE Built for the messy, easy-to-forget life maintenance tasks that daily streak apps ignore: • Home & Cleaning: AC filters, deep cleaning the fridge, washing bedsheets, descaling coffee makers, checking smoke detectors. • Plant & Pet Care: Unpredictable watering schedules, fertilizing, flea and tick treatments, vet visits, grooming. • Car & Life Admin: Oil changes, tire rotations, haircuts, dental checkups, calling family. • Health & Self-Care: As-needed medication, vitamins, pain relief, replacing contact lenses, skincare actives. • ADHD-Friendly: A zero-shame, visual task history designed for time blindness and executive dysfunction. LOG MULTI-DAY DURATIONS Not every event happens in a single moment. Track multi-day events from start to finish: • Private Period Tracker: A secure, bloat-free way to log your cycle with no accounts or data harvesting. • Sickness & Symptoms: Record exactly how many days a fever, migraine, cold, or burnout lasted. • Travel & Breaks: Track vacations, trips, guests visiting, or fasting. Tap once to start and tap to end. Your home screen counts the active days ("Day 3"), and your interval charts shade the entire duration. SMART PREDICTIONS & INTERVAL INSIGHTS You don’t need a rigid schedule to stay on top of things: • Learns Your True Rhythm: Our PatternAware engine calculates the natural intervals between your logs, automatically skipping one-off long gaps (like vacations) to learn your real routine. • Gentle Nudges, Not Nags: See what is expected today, tomorrow, or overdue based on your actual history. • Pause Anytime: Traveling or injured? Pause any event so your predictions stay accurate and notifications stay quiet. • Interactive Calendar & Charts: Tap any date on your Insights grid to review past logs, notes, and monthly totals. • Custom Time Counting: Choose between strict 24-hour periods or calendar midnights crossed. LOG IT IN SECONDS (WITH INSTANT UNDO) When your hands are full, log without slowing down: • Interactive Widgets: 1-tap logging directly from your Home Screen or Lock Screen. • Accidental Tap Undo: Tapped a widget by mistake? Instantly undo accidental logs right from the Home tab, widgets, or Lock Screen. • Siri & Apple Shortcuts: Say, "Hey Siri, log the fridge cleaning," or build custom automations. 100% PRIVATE & IN YOUR HANDS • Zero Tracking: No accounts, no sign-ups, no ads, and zero analytics. • iCloud Sync & Backup: Seamlessly sync across iPhone and iPad with automatic iCloud Drive backups. • Full Data Ownership: Export or import your entire timeline as JSON anytime (SinceWhen_Latest.json). SINCEWHEN PRO Start free forever with your first 3 events—every core feature included, no credit card required. Upgrade to SinceWhen Pro for unlimited events, full iCloud sync, Siri & Shortcuts, and JSON export: • Monthly & Yearly: Includes Apple Family Sharing so your household can track chores, pets, and home maintenance together privately on their own Apple IDs. • Lifetime: A simple one-time purchase to own it forever (Family Sharing not included). Privacy Policy: https://devapt.com/sincewhen/privacy Terms of Use: https://devapt.com/sincewhen/terms

Screenshots

DayZen4 screens
SinceWhen4 screens

Verdict

The call

The clearest difference is update cadence: SinceWhen at weekly against DayZen's monthly. SinceWhen also leads on review sentiment (88% vs 75%) and ratings volume (14 vs 4). On price, rating, ads and in-app purchases 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

Both are free to download. DayZen sells 3 in-app purchases, starting at $2.99 per month and SinceWhen sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

SinceWhen holds the better App Store score, 4.4 against 4.3. Both are backed by a comparable volume of ratings — 4 and 14 respectively. Written reviews point the same way: 75% of DayZen's written reviews are positive against 88% of SinceWhen's.

UpkeepUpdate frequency

DayZen ships an update monthly, SinceWhen weekly. Both last shipped on October 24, 2026.

Scorecard3 real differences · 7 level
DayZen versus SinceWhen: the parameters behind the verdict, then further details
ParameterDayZenSinceWhen
PriceFreeFree
Rating4.3 (4 ratings)4.4 (14 ratings) — better
Positive reviews75.0% of reviews87.5% of reviews — better
Number of ratings414 — better
Update frequencyMonthlyWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS17 — better17.6
Further details — not scored
Size7 MB12 MB
Age rating4+4+
DeveloperJoris KavolisBasharath Shaik

Customer experience

DayZen

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

SinceWhen

All ratings14 ratings
Positive85.7%
Neutral0.0%
Negative14.3%
Written reviews8 reviews
Positive87.5%
Neutral0.0%
Negative12.5%

In-app purchases

3 purchases

DayZen

Subscriptions2
  • Monthly Premium$2.991 Month
  • Yearly Premium7 Days trial$19.991 Year
One-time1
  • Lifetime$24.99
3 purchases

SinceWhen

Subscriptions2
  • SinceWhen Pro + Family (Monthly)$4.991 Month
  • SinceWhen Pro + Family (Yearly)$19.991 Year
One-time1
  • SinceWhen Pro (Lifetime)$39.99

Questions

Is DayZen free?
DayZen is free to download, with in-app purchases available.
Is SinceWhen free?
SinceWhen is free to download, with in-app purchases available.
Which has better reviews, DayZen or SinceWhen?
SinceWhen is rated higher. DayZen averages 4.3 out of 5 from 4 ratings, while SinceWhen averages 4.4 from 14 ratings.
Do DayZen or SinceWhen have ads?
Neither DayZen nor SinceWhen shows ads.
Which is updated more often, DayZen or SinceWhen?
DayZen ships an update monthly, and SinceWhen weekly. Most recently, DayZen was updated on October 24, 2026 and SinceWhen on October 24, 2026.

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