ThisDay vs SessionStack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ThisDay
This app organizes your day by placing all tasks, notes, voice memos, events, and habits onto a real calendar date. It integrates with Apple Health for habit tracking and syncs with Apple Reminders, ensuring nothing gets buried and everything is accessible.
- Tasks, notes, voice memos, events, and habits on real dates
- Habit tracking integrated with Apple Health
- Syncs with Apple Reminders
- Unfinished tasks roll over to the next day
- Quick capture and day bar for easy access
- Widgets and Live Activities support
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Not someday. ThisDay. Most planners hand you a backlog. ThisDay hands you a day. Every task, note, voice memo, event and habit lands on a real date; not in a someday pile you scroll past for months. Open the app and there is one thing in front of you: today, in the order it happens. ONE DAY, EVERY KIND OF THING Tasks, events, notes, voice memos, photos and habits share one list, because they share one day. A habit at 10:00 sits between the 9:00 task and the 11:00 meeting, where it belongs. Same row, same swipe, same checkbox, whatever kind of thing it is. Your own calendars appear inline too, at the hour they happen, so a morning with a meeting in it never looks free. EVERYTHING CAN REMIND YOU Record a voice memo and put a reminder on it. Write a note and have it find you at 6pm. Your phone can already take a voice memo, it just can't tell you about it later. ThisDay can. HABITS THAT TICK THEMSELVES Point a habit at Apple Health and stop reporting on yourself. Steps, exercise minutes, active energy, sleep, the Watch's three rings, and workouts from running to yoga. Set the number you're aiming at; ThisDay watches for it and fills the ring as your day fills it. ThisDay only reads Health, never writes to it, and only the measurement each habit names. Nothing leaves your device. And a habit is never marked done because a sensor said so and you disagreed. No reading is ever "done"; if your watch was on the charger, the tick is still yours to make. Your tick always wins. APPLE REMINDERS, BOTH WAYS The Reminders lists you choose show up in your day, next to everything else, read-only: ThisDay never edits somebody else's row. And when you ask for it, the other direction. Tasks you make here are written back out as reminders, so they reach Siri, a Mac that doesn't run ThisDay, and anyone you share a list with. Switching it off takes the copies back out. NOTHING GETS BURIED Unfinished work follows you to today instead of quietly aging on a date you've already passed. Completed things can leave the list or stay in a folded section, your call. ONE RULER, FROM A DAY TO THE YEAR Slide the ruler at the top of your day out to a few days, the week, the month or the whole year, and tap any day to come back into it. The + is always one thumb away. ALSO IN HERE • Quick capture for every kind of item • Reminders, repeats and rollover • Categories, priorities and links • SiriAI: ask about your plans, answered on your device (Apple Intelligence) • A Library for notes, voice notes, pictures, places and countdowns • An inbox for anything without a day yet • Monthly recaps and medals you can share • Widgets, Live Activities and an Apple Watch app • Shortcuts and Siri • Twelve languages, every screen in each one • Light and dark, and an accent you choose • Your day on iPhone, iPad, iPhone Duo and Mac BUILT BY ONE PERSON There is no account and no sign-up, because there is no server to sign up to. No analytics, no tracking, and nothing sold to anyone; your day never leaves your device. Something broken or missing? Write to hello@akilastudio.com and you'll get a reply from the person who made it. FREE FOR TASKS, ONE PRICE FOR THE REST ThisDay is free for 21 days with everything included; no card up front and nothing to cancel. After that, tasks and repeats stay free for good. ThisDay Pro opens everything else with one payment. No subscription, no renewal. ThisDay is on the Mac too, in this same App Store listing, with its own one-time unlock. If you bought ThisDay on iPhone, the Mac costs less.
SessionStack
Effortlessly plan your conference schedule in Las Vegas. This app helps you browse thousands of sessions, uses AI to filter options based on your preferences, and suggests optimal itineraries to avoid conflicts and travel time.
- Browse 2,200+ conference sessions
- AI-powered filtering and suggestions
- Optimized itinerary planning
- Avoid scheduling conflicts
- Venue and travel time considerations
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Plan your conference week in Las Vegas without the spreadsheet chaos. SessionStack is a session planner for attendees of AWS re:Invent 2026. Browse 2,200+ sessions across six venues on the Strip. Ask in one sentence and the AI turns it into filters you can see. Leave an afternoon open and it suggests sessions that are worth your time and that you can actually reach. And it will never book you two talks twenty minutes apart at opposite ends of the Strip. SessionStack is an independent app made by attendees, for attendees. It is not affiliated with, endorsed or sponsored by Amazon Web Services, Inc. or its affiliates. AWS and re:Invent are trademarks of Amazon.com, Inc. or its affiliates.
Screenshots
Verdict
The clearest difference is in-app purchases: SessionStack at none against ThisDay's 5. SessionStack also leads on update cadence (every 4 days vs every 9 days) and iOS requirement (16.4 vs 18.0). ThisDay's advantage is device support (4 vs 1). On price, rating, ratings volume and 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
Both are free to download. ThisDay sells 5 one-off in-app purchases. SessionStack asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for ThisDay against 5.0 for SessionStack. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
ThisDay ships an update every 9 days, SessionStack every 4 days. Both last shipped on October 31, 2026.
| Parameter | ThisDay | SessionStack |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 9 days | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad, Mac, Apple Watch — better | iPhone |
| Requires iOS | 18.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 57 MB | 81 MB |
| Age rating | 4+ | 4+ |
| Developer | Agustin Dell Aquila | Joannes van Eijk |
Customer experience
ThisDay
SessionStack
In-app purchases
ThisDay
- Coffee tip$2.99
- Lunch tip$9.99
- ThisDay$14.99
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- Dinner tip$19.99
- ThisDay Pro (Mac)$34.99
SessionStack
No in-app purchases









