Knowix, LLC vs HEY Calendar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Knowix, LLC
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We deliver actionable data that improve safety, reduce operational costs, and drive system-wide improvements. Knowix’s patented technology enables the collection of in-use data which in conjunction with its patent pending software and analytics provide actionable insights. We deliver real-time measurements, asset status, location services providing unparalleled situational awareness. Knowix’s technology is highly modular and scalable which allows solutions to be tailored to market and end-user needs. Knowix empowers users; Stop modeling, Start KnowingTM.
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
Screenshots
Verdict
The clearest difference is update cadence: HEY Calendar at fortnightly against Knowix, LLC's every 3 months. Knowix, LLC's advantage is iOS requirement (13.0 vs 17.2). On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.
Knowix, LLC ships an update every 3 months, HEY Calendar fortnightly. Both last shipped on November 3, 2026.
| Parameter | Knowix, LLC | HEY Calendar |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.7 (659 ratings) — better |
| Positive reviews | — | 56.4% of reviews |
| Number of ratings | — | 659 — better |
| Update frequency | Every 3 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.2 |
| Further details — not scored | ||
| Size | 43 MB | 64 MB |
| Age rating | 4+ | 4+ |
| Developer | Knowix, LLC | 37signals LLC |
Bugs and requests
Knowix, LLC
Not enough reviews yet to summarise bugs or 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
In-app purchases
Knowix, LLC
No in-app purchases
HEY Calendar
No in-app purchases









