# Check Calendar - Habit Tracker — user reviews > 201 indexed App Store user reviews of Check Calendar by naoki otsu, rated 4.70/5 from 1,446 ratings. - Source: https://appshunter.io/ios/app/check-calendar-habit-tracker/id1563837295/reviews - App overview in markdown: https://appshunter.io/ios/app/check-calendar-habit-tracker/id1563837295.md - Rating breakdown: 5★ 1,281 · 4★ 73 · 3★ 27 · 2★ 18 · 1★ 47 ## What do users think of Check Calendar? Overall sentiment: neutral **Pros** - 👍 Simple and easy to use - ✅ Effective for tracking habits - 📅 Convenient calendar view - 🎨 Customizable icons and emojis **Cons** - 💰 Paid app with limited free trial - 🔒 Lack of free version options - 🔄 Data loss on device change - 🤔 Unclear pricing and subscription model **Commonly reported bugs** - Inconsistent date tracking - Syncing issues between devices - Unexpected loss of data and progress **Most requested features** - Add widget support - Implement reminder/notification system - Provide more data visualization and analytics - Allow selective clearing of check marks ## Newest reviews (13 of 201) ### 2/5 — Secretly paid app *2026-08-04, version 14.47.0* Makes you pay $5 after a week ### 3/5 — Not free *2026-07-01, version 14.38.0* The app shows that it is free until a week then it says you have to pay 6 dollars after I already did a lot of stuff with the app ### 3/5 — It's a good app, but... *2026-05-29, version 14.21.0* I hope for support for the Arabic language so that it will be easier for me to work with it, and then I can share it with my colleagues so we can use this application. And thanks 🙏 ### 4/5 — 明日以降 *2026-05-27* の日付をちょっと触ってしまうだけで簡単にチェックが入ってしまいます。以前使用していたものは、明日以降を間違ってタップすると入力できない仕様になっておりました。出来れば改善をお願いしたいです。 今日以前に関しては、つけ忘れを後からつけることを考えるとロックしない方がいいですが、入力しますか？程度のワンクッションあるといいと思います。 前は600円でしたが、今は800円です。でも、広告が嫌じゃない人は課金しなくて大丈夫な作りなのでお試しで使っても大丈夫です。 ### 2/5 — Not free *2026-05-26, version 14.20.0* I had no idea this was a paid app after a week. ### 2/5 — Not free *2026-04-04, version 13.51.0* It’s great. All I need is to check off dates. They want you to pay for that after a few days of use. Very disappointed. ### 2/5 — Must pay for premium *2026-03-21, version 13.48.0* They make you pay of course just another app that annoyingly has you pay for a premium version. Otherwise it’s cool. ### 2/5 — 課金しないと使えない *2026-03-19* 最初はとても使いやすくて愛用していたのですが、途中からトライアル期間が終了しました。と表示され600円課金しないと使えないようになりました。 どこにもそのような説明はされていないし、課金についての今までのレビューに改善すると返答されていますが改善されていません。今まで入力してきたメモも課金しないと見れなくなっていて悲しいです…。 ### 5/5 — 간단합니다. *2026-03-08* 정말 잘 쓰고 있어요. ### 4/5 — 使いやすいが不具合がある *2026-03-01* 2026/3/1記入　 運営へのフィードバック いつも利用させて頂いています。ありがとうございます。凄く使いやすいのですが気になる点が一点。 毎月のチェック数累計(緑のレ点)と上に表記される 今月の合計が合わないときが多々あります。 ☑️をつけ外しして一つずつ確認したところ、稀にチェックを入れてもカウントされていない箇所があり、そちらが原因かと思われます。 改善よろしくお願いします ### 5/5 — Great for building good habits! *2026-02-25, version 13.44.0* I bought this app to track my piano practice and other habits. It’s a nice reinforcement to be able to add a check every day I’m successful at getting something done. ### 5/5 — Best one for my needs! *2026-02-01, version 13.44.0* Simplistic, emojis and checkmarks available, month view, and tabs for each header- PERFECT ### 5/5 — So simple, does just what I need it to do *2026-01-31, version 13.44.0* I’m a happy customer :) ## Most critical reviews (10 lowest-rated) ### 1/5 — Can’t even use basic functionality without paying *2026-07-29* Asking for premium that costs ₹500 just to do the most basic task that is click to mark a date. This is literally the simplest an app can get. Uninstalled this and created my own in 10 mins with Claude. ### 1/5 — Have to pay *2026-06-10, version 14.30.0* You have to pay to use the app at all ### 1/5 — Paywall scam *2026-04-13, version 13.51.0* App baits you into thinking it’s free. It waits until you’ve used it for x consecutive days then it takes away your access unless you spend money. What a scam. ### 1/5 — Pure Deception *2026-03-25, version 13.48.0* What is the point of having only a free trial for a week? It is a simple application with nothing that is too impressive. You don’t need to buy it for 7 dollars. Trust me, at this point, just check for things yourself. ### 1/5 — 7日しか使えません *2026-02-05* 特にトライアル期間については記載がないにも関わらず、7日後には使えなくなりました。詐欺みたいなアプリです。ダウンロードしなければ良かったと感じています。 ### 1/5 — Paid use??? *2026-01-29, version 13.44.0* Why is the iPhone app paid? And only gives you a week-long trial, while it's free on Android? ### 1/5 — Let people know it costs money so it’s not a headache for you or for us. *2026-01-21, version 13.44.0* I wouldn’t mind the app if it didn’t use the good ole’ “ITS FREE!!”………until next week scam. But it was good while it lasted. I’ll just get Google Calendar. ### 1/5 — Not free *2026-01-13, version 13.44.0* Why would using a calendar cost money? You can do this for free on your iPhone. ### 1/5 — ゴミ *2025-10-21, version 13.35.0* 1週間しか使えない最悪のアプリ。他のレビューで指摘されて改善しますとほざきながら一切しないダメ運営。 ### 1/5 — App forcing to buy premium after one week free use *2025-09-11* Hate this app. I cannot edit things after 1 week. It’s forcing me to buy premium version. So uninstalling it immediately. You could just show ads so that we can use it freely. ## Most praised reviews (10 highest-rated) ### 5/5 — Best tool to track my activities *2026-08-12, version 14.47.0* I’ve been using the app for over two years now to track my activities and it works perfectly for me. Even though I have a smart watch it doesn’t provide such reporting as this app. Fun, simple, functional. ### 5/5 — Super *2026-07-29, version 14.47.0* Pour ceux qui aime tout ecrire et bien organiser les archives cette app est kool et tu paye juste une fois ensuite tu la a vie. ### 5/5 — Great! *2026-07-20, version 14.43.0* Simple, easy to use, and does exactly what it’s supposed to do. ### 5/5 — I love the app. *2026-07-11, version 14.42.0* I strictly use it to keep track of my day to day movement. It’s an accountability check. If you look at your month and you’re not happy, then the next month you make sure you visually can see that change. The app does this. ### 5/5 — Awesome simple calendar *2026-06-19, version 14.33.0* I love this! It is so simple and straight forward, just what I needed. No ads or cost to use this app, thanks to the generous creators of this app. I LOVE IT ### 5/5 — 課金する意義がある *2026-06-18* UIがシンプルなので、直感的に使い方が分かりやすい。 以前ダイエットの習慣化のために課金して、目標達成後放置していた。久々に運動習慣を定着させるために立ち上げても迷うことなく使えた。かなり使いやすいと思う。 ### 5/5 — Good app *2026-06-10, version 14.30.0* I’m happy with this app and it tracking and data capabilities ### 5/5 — NA *2026-06-10* User friendly :) ### 5/5 — Easy to Use *2026-05-08, version 14.14.0* Great app for easily tracking ### 5/5 — Gracias *2026-04-11, version 13.51.0* Está fabuloso esto --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-12.*