# Seamless Calendar - Planner — user reviews

> 106 indexed App Store user reviews of Seamless Calendar by iLeaf, rated 4.80/5 from 664 ratings.

- Source: https://appshunter.io/ios/app/seamless-calendar-planner/id1252243876/reviews
- App overview in markdown: https://appshunter.io/ios/app/seamless-calendar-planner/id1252243876.md
- Rating breakdown: 5★ 566 · 4★ 62 · 3★ 15 · 2★ 10 · 1★ 11

## What do users think of Seamless Calendar?

Overall sentiment: positive

**Pros**

- 👍 Intuitive and easy to use
- 🚀 Seamless calendar sync
- 💡 Customizable color-coding for events
- 🚀 Vertical scrolling for smooth navigation
- 👍 Simple and distraction-free interface

**Cons**

- 🐛 Occasional crashes and freezes
- 🔍 Lack of search functionality
- 🔍 No option to view in landscape mode
- 🔍 Limited customization options
- 🔍 No widgets or Apple Watch support

**Commonly reported bugs**

- Events disappearing overnight
- Inability to save or change events
- App crashing after version updates
- Days of the week row not displaying properly
- Freezing when tapping on event participants

**Most requested features**

- Add search functionality
- Implement landscape mode view
- Provide more customization options
- Introduce widgets and Apple Watch support
- Add support for importing/exporting calendars

## Newest reviews (14 of 106)

### 3/5 — Can’ remove or change attached picture

*2026-06-26*

The app can attached picture via tapping the selected data. After that, you can’t remove or change the one  you selected. Does it have any solution?

**Developer response:** On the event edit screen, please swipe left on the attached data. A delete button will appear. Thank you for your cooperation.

### 4/5 — 全体的に満足ですが…

*2025-12-21*

全体的に良いです。
あとは、祝日の他に日本の行事が明記されてほしいです。
母の日や七五三等です。

### 4/5 — What day is it?

*2025-11-24, version 6.3.0*

Bestt calandarr ive evr used

### 3/5 — 予定のコピーが出来ない

*2025-10-07*

シンプルで見安く、使いやすいカレンダーなのですが、唯一不便な点が、予定のコピーが出来ない点です。
カレンダーアプリとしては基本的な機能だと思うのですが、備わっていないのでしょうか。

**Developer response:** 月表示で日付をタップすると、その日の予定リストが下から表示されます。その予定を左へすワイプすると、「Delete, Copy, +1day」という項目が表示されるので、このCopyを利用してください。よろしくお願い致します。

### 4/5 — 履歴から入力がほしい

*2025-09-20*

Staccalからの移行ですが、シームレス表示できる非常に良いカレンダーアプリです。
前に入力した履歴から予定を入れられればこれ以上ないのですが、その機能が見つかりませんでした。

### 5/5 — Love it

*2025-03-17*

Finally, a simple and easy to use calendar app without all the fluff. The only suggestion would be to have the option to select a color for events.

### 3/5 — Calendario

*2025-01-11, version 3.3.0*

6

### 5/5 — Nice calendar, good features, fits well into phone screens

*2024-11-21*

Update: Much improved. Great flexibility in display formats. Very much bug-free, good functionality, and with some improvements possible.

### 5/5 — LA MIGLIORE

*2024-09-10, version 3.0.0*

Ne ho scaricate mille, ma questa è la migliore in assoluto!!!!!!!! Fantastica, continuate così!!!

### 5/5 — Excellent IOS Calendar replacement

*2024-09-03*

This tool uses the same data as the default IOS Calendar tool does but this tool has a better interface. It’s Year and Month views show colored markers for your different calendars so items from a specific calendar are easier to find. I’ve been using this tool for years and love it.

### 5/5 — 見やすいです‼︎

*2024-08-22*

Yahooのカレンダーアプリが終了してしまうので色んなカレンダーアプリを試しては消し試しては消しての繰り返しでした。
見やすく納得できるカレンダーやっと見つけた。
年間カレンダーの切り替えも簡単で凄く良いです。
強いて言うなら横スクロールできると良いなぁ。

### 5/5 — Perfection

*2024-08-06*

A clean, un cluttered app. Well thought out and performs its function extremely well. If I didn’t know better I’d swear it was an app direct from apple.

Well done!

### 5/5 — Excellent IOS Calendar replacement

*2024-07-31*

This tool uses the same data as the default IOS Calendar tool does but this tool has a better interface. It’s Year and Month views show colored markers for your different calendars so items from a specific calendar are easier to find.  I’ve been using this tool for years and love it.

### 5/5 — Best Calender I’ve Found

*2024-07-25*

Customisable and user friendly!

## Most critical reviews (10 lowest-rated)

### 1/5 — Events disappeared

*2025-07-30, version 5.1.0*

My events got disappeared overnight. Not sure how to retrieve them. I have iPhone 14Plus

### 1/5 — Can’ open app after version upgrade

*2025-06-11, version 5.0.0*

The app can’t open after version upgrade 3 days ago.

### 1/5 — There's something wrong with this app

*2025-06-10, version 5.0.0*

It has a glitch in it. I tap on it and it glitches and don't open up.

### 1/5 — Does not work on Apple watch

*2024-03-29*

This app does not work on Apple watch

### 1/5 — No widgets

*2023-01-08, version 2.3.2*

Without widgets this app is a no go.

### 1/5 — ウィルスにかんせん

*2021-05-23, version 2.2.0*

抜け騙せない

### 1/5 — Calendar

*2020-09-01*

This is a very irritating calendar, it insists on syncing with iPhone calendar before you use it. But I don’t want to sync, as I wanted a separate calendar just for bookings, and not filled with a lot of junk appointments

### 2/5 — Saddened

*2025-09-11, version 5.3.0*

This calendar has always been my favorite. Now I’m sad there is a fee.

### 2/5 — Great til it wasn’t

*2025-06-12*

Unable to save or change events lately. Best calendar otherwise. Will give it one more month

**Developer response:** We have found that depending on the type of iPhone, changes to events in the weekly view screen may be slow to reflect.
Please try editing events in the monthly view, as changes will be reflected immediately.
If events are still slow to reflect in the monthly view, we would like to know more details in order to reproduce the issue. Please send us an email via the contact form in the app.
We will investigate whether it is possible to fix the issue so that events are reflected immediately in the weekly view screen.
Thank you for your cooperation.

### 2/5 — Won’t Open After iOS Update

*2025-04-28*

App no longer opens after updating iOS to 18.4.1 on April 27, 2025. It is now 100% unusable. Makes no difference where I open it from (Home Screen or app list), all I get is a blank page that hangs for a few seconds then crashes. Yes, I’ve uninstalled/reinstalled and restarted phone. Nothing works. 

Losing all the info in my calendar is a potential catastrophic event.

I’ve been trying to find a way to contact the dev and report the issue directly, but I haven’t found any way to do that yet, so this problem now goes here in my review. Hopefully that will get *someone’s* attention.

**Developer response:** We have released version 4.2.5 which fixes the problem. Please update to this and try it. Thank you for your cooperation.

## Most praised reviews (10 highest-rated)

### 5/5 — 1番便利なカレンダー

*2026-07-28*

機能が豊富で、とても使いやすいです。他のカレンダーでは昔を表示制限されてますが、このカレンダーでは昔も(例えば1950年代など)も表示できるのでOK !! 素晴らしいです。

### 5/5 — Brilliant Calendar

*2026-06-03*

I use this brilliant calendar all the time but would appreciate the developer verifying that it’s compatible with MacOS as I’d like to use it across my Apple platforms. It is streets ahead of the Apple calendar and the scroll is much better as you can see parts of this month and next month or last month and this. 

Please please make it available full on MacOS

### 5/5 — Brilliant

*2026-06-03*

Not been a user of this app for long but it's my go to everyday now. Well worth the money to remove ads and a really cool looking app. I like how you can make it just how you like it with a lot of options. The widgets are really good as well. Would recommend for sure. One of the best imo.

### 5/5 — Hands down the best calendar app.

*2026-03-31*

I’ve been using this app for 2 years now. This app has it all plus it’s not subscription based! Syncs perfectly with the iOS calendar. This is the best calendar app out there.

### 5/5 — Super

*2026-03-31, version 6.11.0*

diese Kalender ist einfach super und der Support ist wirklich erstklassig! wenn ich eine Frage habe oder einem Wunsch äußere, bekomme ich noch am selben Tag eine Antwort. und am nächsten Tag ist mein Wunsch schon umgesetzt support ist wirklich super.

### 5/5 — J.Jan

*2025-11-18*

Super,
Weiter so 👍🏻

### 5/5 — Awesome calender

*2025-11-12, version 6.0.0*

Love it

### 5/5 — Color coded events

*2025-05-29*

I love that at a glance I can different events for all my family in different colors.

### 5/5 — B

*2025-04-04, version 4.1.0*

Perfecta !!!!

### 5/5 — シームレスは見やすい！

*2025-03-24*

シームレスカレンダーだと何週間先かパッとわかるので助かります！
アレンジも豊富、共有スケジュールのみ共有でき、会社やプライベートなどを選択できてとても便利です

---

*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 2026-09-05.*