HEY Calendar vs One
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HEY Calendar
This calendar app organizes your schedule around days and weeks, reflecting how people naturally think. It supports habits, highlights important events, and accommodates flexible scheduling for tasks that don't have a fixed time. Enjoy a full-featured experience with unique twists on conventional calendar functions.
- Weekly view focus
- Habit tracking
- Event highlighting
- Flexible scheduling for 'maybe' tasks
- Event countdowns
- Day labels for context
- Color-coded sub-calendars
- Flexible reminders
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Make your day. The all-new HEY Calendar puts time on your side. Week after week, not month after month People think in days and weeks, not months. What’s tomorrow? Later this week? Next week? The HEY Calendar is built around how you think, not how paper calendars were designed. Habits and highlights Establish a habit, stick with it. Circle important events so they stand out. Fill your days with memories or moments — not just events. “Sometime this week” mimics real life Need to get an oil change? Get some cash from the ATM? Write a thank you note? Maybe this week or next, just not exactly sure when you’ll have a chance? HEY knows “maybe” is a real thing. And plenty more The HEY Calendar is a full-featured calendar with many original twists on common — and not so common — conventions. Soon you’ll wonder why all calendars don’t work like this. - Set countdowns for anticipated events - Use Day Labels to add context to days - Set up color-coded sub-calendars - Flexible reminders so you don’t miss out
One
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One goal. All in. One Goal is a goal tracker for the thing you really want to finish. Choose one meaningful goal, define what done looks like, and make a little progress each day. Your daily wins become a story you can look back on. GIVE ONE GOAL YOUR ATTENTION A side project. A first race. A creative ambition. Keep one active goal in focus, with a clear finish line and one next move. LOG WHAT MOVED YOU FORWARD Write down a useful step, big or small. Save the win and celebrate the effort. Daily logging is free. SEE HOW FAR YOU'VE COME Your saved wins stay together in your story. On a slow day, look back at the progress you've already made. RESET EACH WEEK Review your recent wins, reflect on what helped, and choose a clear next move. Keep your plan connected to what actually works for you. REACH IT. THEN START YOUR NEXT CHAPTER. Mark your goal complete when you reach your finish line. Keep its story and choose your next goal when you're ready. GO ALL IN WITH ONE GOAL PRO Optional Pro adds Siri win logging and goal check-ins, personal streaks, levels, and profile personalization. Choose an annual subscription or a one-time lifetime purchase. No free trial. Local prices are shown before purchase. Daily wins, your story, weekly reviews, and your next goal remain free. YOUR GOAL. YOUR PHONE. No account to create. Your goal and win text are stored on this iPhone, with no advertising or analytics SDKs. This version has no cloud sync, and your story is excluded from device backups. Deleting the app or losing your phone can mean losing your history. Optional Siri features and purchases use Apple's services. Annual subscriptions renew automatically unless canceled in your Apple Account settings. Lifetime is a one-time purchase with no renewal. Restore purchases in the app. Made by ZeroCrew. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy: https://zerocrew.ai/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: HEY Calendar at none against One's 3. On price, ads, device support and iOS requirement 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. One sells 3 in-app purchases, starting at $6.99 per month. HEY Calendar asks for nothing beyond the download.
| Parameter | HEY Calendar | One |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (659 ratings) — better | — |
| Positive reviews | 56.4% of reviews | — |
| Number of ratings | 659 — better | — |
| Update frequency | Fortnightly | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.2 — better | 18.0 |
| Further details — not scored | ||
| Size | 64 MB | 5 MB |
| Age rating | 4+ | 12+ |
| Developer | 37signals LLC | ZEROCREW AI LTD |
Bugs and requests
HEY Calendar
Reported bugs
4 issues- Events not showing up on calendar
- Notifications not working as expected
- Frequent crashes and performance issues
- Inability to edit events from external calendars
Requested features
5 requests- Two-way sync with other calendar services
- Ability to set custom recurrence patterns
- Integration with mapping/navigation apps
- Family/shared calendar support
- Calendar widget for quick access
One
Not enough reviews yet to summarise bugs or requests.
In-app purchases
HEY Calendar
No in-app purchases
One
- Monthly$6.991 Month
- One Goal Pro Annual$49.991 Year
- One Goal Pro Lifetime$99.99









