In the past two months, when I used to write, I used to think it was the fault of the pen, the screen shook, and the strokes flew around. However, when I changed the three pens, I still had this problem. Besides, Apple Pencil did not have these problems in other apps, so it is not the problem of ipad either. In addition, since 2013, there have been frequent failures, such as forced exit, flash back, automatic disappearance of notes, etc., and the speed of opening notes is very slow recently. I hope these problems can also be solved. But generally speaking the program is still very easy to use, very convenient has been used for more than two years, hope to do better!进两个月经常书写的时候初出现断处，屏幕抖动，笔画乱飞的现象，原来以为是笔的问题，换了3支笔一样有这个问题，而且在其他app使用Apple Pencil没有出现以上问题，所以也不是ipad问题，希望这个问题可以尽快得到解决。 并且，从23年开始，经常出现故障，会强制退出，闪退，笔记自动消失等等问题，而且打开笔记的速度也很慢最近，希望这些问题也可以得到解决。 但是总体来说程式还是很好用的，很方便已经用了两年多了，希望可以越做越好！

The first stroke never appears instantly; there's always a delay, requiring constant erasing. For a note-taking app to have such a flaw is truly terrible, making it extremely difficult to use. Actually, it wasn't like this before; it became incredibly difficult to use after a certain update. I suspect it's due to the lack of accidental touch functionality. But a note-taking app without basic accidental touch functionality is still awful. Who writes in the air? Do we all practice calligraphy? Those considering buying it should think about it: every time you write, the first stroke is delayed; for example, drawing a circle will result in a small missing corner. In the long run, this is extremely annoying. I've already reported this, but the official response has been indifferent. No wonder the price is so cheap; think twice before buying the permanent version.第一筆沒辦法即時出現，都會延遲，就必須一直反覆擦，身為筆記軟體卻有這樣的瑕疵真的很糟糕，使用上感覺極差。其實之前不會這樣，某一次更新後就變得超級難用，我猜想是缺乏誤觸功能吧？但一個筆記軟體沒有基本的誤觸功能也是很爛了，誰寫字會浮空寫，當我們都在寫書法？要買的人可以想看看，你每次寫第一筆都延遲，例如畫個圈，就會缺一小角。長期下來其實非常的煩人。我已經反映過了，官方無動於衷，難怪價格如此便宜，要買永久版的請三思。

CollaNote is certainly a high-quality note-taking app, as it provides multiple functions for free, and I hope these free features can last. However, the app has added some new pen options after the update, which is great and quite useful, but it also makes some of the notes I wrote before completely different now. The pen strokes, the thickness of the characters, and the layout are all different from the original one. I sincerely hope the updated version will not apply to the previous content.😢😢My well-organized notes become totally different every time you update the app!!! Plz stop it🤬The update itself is fabulous but don’t change what has already been done!!!!!

With the ability to import and export PDF easily, it is suitable for students to read textbooks, take notes, or read papers for research, especially for a student in graduate school like me. Also, it supports one to import or paste images (from screenshot or camera or anywhere you can copy an image), it really helps a lot since I can save a lot of works from writing everything on the board or on the site by myself. Last but not least, it offers some convenient and customized tools that makes taking notes an easy thing, and this powerful app is TOTALLY FREE!!! In conclusion, this app is a powerful, convenient and free app for taking notes, I really recommended it to who are hesitating whether to download this app in front of the screen.