Unstar.app
Once / ワンス（生理周期管理カレンダー）

Once / ワンス（生理周期管理カレンダー）

iOS

Malang Studio Co. Ltd,

(13 total reviews)
Health & Fitness
View on App StoreView Analytics

Negative Reviews

0

negative reviews found

What users complain about in Once / ワンス（生理周期管理カレンダー）

Users report frequent app crashes, with the app closing immediately upon opening, making it unusable. Many complain about synchronization issues with Google accounts and data loss risks. Some mention incorrect ovulation tracking and intrusive ads.

  • App crashes immediatelyHigh
  • Sync issues with GoogleMedium
  • Incorrect ovulation trackingLow

AI summary of 13 recent 1-3 star reviews. Read the full reviews below.

Is Once / ワンス（生理周期管理カレンダー） legit and safe? See the trust verdict.
How to cancel Once / ワンス（生理周期管理カレンダー） and get a refund.
Is Once / ワンス（生理周期管理カレンダー） safe for kids? See the age rating and parent guide.
Looking for apps like Once / ワンス（生理周期管理カレンダー）? See the best alternatives with fewer complaints.

Is Once / ワンス（生理周期管理カレンダー） your app?

If you own it, get a free health report by email: trust verdict, store rating and the top complaint themes users hit. It is sent to the address you sign in with.

Tools for developersFeature this app on our homepage

Fetching reviews, please wait...

Compare Once / ワンス（生理周期管理カレンダー） with another app

See side-by-side negative review analysis, rating breakdown, and complaint patterns.

Start a comparison →

Frequently Asked Questions

What do users complain about most in Once / ワンス（生理周期管理カレンダー）?

Negative reviews on Once / ワンス（生理周期管理カレンダー） 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 Once / ワンス（生理周期管理カレンダー） rated on App Store?

Once / ワンス（生理周期管理カレンダー） has an average rating of 3.1 stars from 13 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 Once / ワンス（生理周期管理カレンダー） have negative reviews?

Even apps with strong overall ratings accumulate 1-3 star reviews when users hit specific issues. For Once / ワンス（生理周期管理カレンダー）, 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 Once / ワンス（生理周期管理カレンダー） worth installing in 2026?

Once / ワンス（生理周期管理カレンダー） has a mixed rating of 3.1 stars. The negative reviews above are essential reading before installing because the app has substantial 1-3 star feedback that may signal structural issues.

What are alternatives to Once / ワンス（生理周期管理カレンダー）?

Browse the Health & Fitness category to compare Once / ワンス（生理周期管理カレンダー） 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.