Jカレンダー

iOS

PiyoLog Inc.

4.0

(21,691 total reviews)

Productivity

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Negative Reviews

negative reviews found

What users complain about in Jカレンダー

Users frequently report that their scheduled events disappear, especially after iOS updates. Many complain about the widget functionality being limited or broken after updates, failing to display event details. Syncing issues between devices and app crashes when editing notes are also common problems.

Events disappear after updatesHigh
Widget not showing eventsHigh
Syncing issues between devicesMedium

AI summary of 107 recent 1-3 star reviews. Read the full reviews below.

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Frequently Asked Questions

What do users complain about most in Jカレンダー?

Negative reviews on Jカレンダー cluster around recurring complaint patterns visible in the 1-3 star reviews above. Common themes include app crashes, missing features, billing issues, and update regressions. Browse the negative reviews on this page to see the specific issues real users in App Store are reporting.

How is Jカレンダー rated on App Store?

Jカレンダー has an average rating of 4.4 stars from 21,691 ratings on App Store. The negative review breakdown above shows the 1-3 star reviews that the headline rating averages out, grouped by complaint type so you can see what users actually struggle with.

Why does Jカレンダー have negative reviews?

Even apps with strong overall ratings accumulate 1-3 star reviews when users hit specific issues. For Jカレンダー, the negative reviews on this page reveal the friction points that the marketing pages and headline rating do not show. Reading the actual complaints surfaces patterns weeks before they appear in app store rating averages.

Is Jカレンダー worth installing in 2026?

Jカレンダー is well-rated overall with 4.4 stars. Read the negative reviews above before installing to see if the recurring complaints affect your specific use case (platform, country, payment method).

What are alternatives to Jカレンダー?

Browse the Productivity category to compare Jカレンダー against similar apps with their own complaint patterns. The category leaderboard ranks apps by negative review ratio so you can spot which alternatives have fewer recurring complaints.