Just Calendar vs AtomView
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Just Calendar
This app provides a straightforward calendar experience for your Apple Watch, offering enhanced viewing options for past and future events. It allows you to check dates, view schedules by week, month, or year, and quickly access event details directly from your watch face.
- View past and future event timelines
- Calendar views: week, month, year
- Date complication on watch face
- Event complication on watch face
- Customizable highlight color and layout
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See your date, schedule, and events at a glance — right on your Apple Watch face. Just Calendar brings week, month, and year views to your wrist, with complications for every watch face. THE CALENDAR APPLE WATCH SHOULD HAVE COME WITH. ◆ Events at a glance See your full timeline of upcoming and past events, and tap any event for details. ◆ Week, month & year views A clean, fast interface to scan your whole week, month, or year in seconds. ◆ Date complication Keep today's date on your watch face. Works with every face — no compatibility worries. ◆ Event complication See today's events right on your watch face. Works with every face too. ◆ Make it yours Change or invert the highlight color of the Date complication, and switch the app layout: Default or Paging. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
AtomView
Access an enterprise AIOT platform for real-time monitoring of devices and events across numerous global locations. View live feeds and playback recordings from edge AIOT devices through the cloud service. Requires an account for full functionality.
- Real-time device status monitoring
- Event tracking and alerts
- Live video feed access
- Playback of recorded footage
- Global location support
- Edge AIOT device integration
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Atomrock AIOT platform is an enterprise system that integrates the AI and IOT at the edge computing and cloud. Use AtomView to connect to the AtomCloud for real-time status, events, live and playback from hundreds of locations worldwide on millions of edge AIOT devices. Access account is required to use this app.
Screenshots
Verdict
The clearest difference is rating: AtomView at 5.0 against Just Calendar's 4.3. AtomView also leads on in-app purchases (none vs 12) and iOS requirement (15.0 vs 18.0). Just Calendar's advantage is ratings volume (295 vs 1) and update cadence (weekly vs every 3 weeks). On price, ads 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. Just Calendar sells 12 in-app purchases, starting at $1.49 per 3 months. AtomView asks for nothing beyond the download.
AtomView holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Just Calendar has 295 ratings behind it against 1, so its average is the more settled of the two.
Just Calendar ships an update weekly, AtomView every 3 weeks. The most recent releases landed on October 20, 2026 and October 4, 2026 respectively.
| Parameter | Just Calendar | AtomView |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (295 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 36.6% of reviews | — |
| Number of ratings | 295 — better | 1 |
| Update frequency | Weekly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 40 MB | 79 MB |
| Age rating | 4+ | 4+ |
| Developer | Tu Hoang | Atomrock |
Customer experience
Just Calendar
AtomView
Bugs and requests
Just Calendar
Reported bugs
28 issues- Complication not updating/showing random events
- App crashes on opening
- Syncing issues
- Payment not recognized
- App not opening after purchase
Show 23 moreShow fewer
- Date recognition errors
- Complication displays app name instead of date
- Graphical glitches in complications
- Missing events in between scheduled times
- App not covering current year (2021)
- Incorrect grammatical errors in event count
- Repeats months in three-month view
- Complication is black/empty
- Settings crash on iPhone app
- Schedule complication never updates
- App not syncing to watch after unlocking features
- Date compilation not working on watch face
- App not displaying on Watch
- Event Timelock not reflecting on Apple Watch
- Stopped syncing
- First appointment of the day displayed all day on watch face
- Never syncs properly to watch
- Crashing on each attempt to open
- Crash crash crash
- Complication issue (JUST CA...)
- Corner complications misfit and off center
- App not showing events in August-September
- App not showing Google calendar events
Requested features
7 requests- More complication options
- Calendar display in complications
- Ability to delete completed tasks directly
- Option to show tomorrow's events in complication when no current events
- 24-hour time format option
Show 2 moreShow fewer
- Calendar week display
- Sunday as the first day of the week setting
AtomView
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Just Calendar
- Three Months Premium7 Days trial$1.493 Months
- Monthly Subscription3 Days trial$1.991 Month
- One Year Premium7 Days trial$6.991 Year
- 7-day Trial PremiumFree
- Feature: Date Complication$0.99
- Feature: Event Timeline$0.99
Show 6 moreShow fewer
- FULL VERSION$1.99
- Feature: Date Complication$1.99
- Feature: Paging Layout$1.99
- Feature: Event Timeline$1.99
- 33% OFF Premium$2.99
- FULL VERSION$9.99
AtomView
No in-app purchases
