Completely free The Dropper Series

DROPPER Just drop that one file. The dates go straight to Google Calendar.

Drop a file.
We'll take it from there.

More tools are on the way.

Completely free

Your AI free tier is sitting idle.
Put it to work here.

Your Google account refills a free AI allowance every day. Left alone, it simply expires. No credit card, no cost, about three minutes — and it goes straight into what Dropper reads for you.

💳 No card needed 🆓 Free inside the free tier ⏱ About 3 minutes
See how to use the free tier

※ Dropper works fine without a key. AI mode is optional.

The Dropper series

Tools you use simply by dropping in a file. Pick the one that fits what you want to do and start right away.

Available
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Event Dropper

Just drop in the event document (PDF or image) and the date and venue are added to Google Calendar automatically. You can also create ready-to-post WhatsApp/SNS announcements from the details in one tap. Works for any event.

Google only Adds to Calendar Any event works Easy handover WhatsApp/SNS posts

Read it, then collect the replies

From the screen you get after reading a document, you can open attendance right away. Members pick their name from the roster and tap yes / maybe / no - no app and no sign-up.

Attendance cannot be used on its own - it starts from an event you read here. It is still a preview, so screens and steps may change.

Completely free

Available
📅

Schedule Dropper

Drop one sheet — a year planner, a fixture list, a season calendar — and every entry on it is read at once. Check the list, then add them all to Google Calendar in one go. Calendar-grid layouts work too.

Many entries from one sheet Calendar grids too Review before adding Google only No double entries

Completely free

Available

Decide Dropper

Drop a chat screenshot, meeting notes or minutes, and it sorts them into what was decided, what is still open, what to do, and a record of what already happened. No more scrolling back to ask what you actually settled. Handwritten notes and photos of a whiteboard work too.

No sign-in to try it From chat screenshots Handwriting and minutes too Decided vs still open Can add to your calendar

Completely free

AI mode needs no card, and costs nothing

No more copy-paste, over and over.

AI mode reads more accurately, and it is the only way to read grid-style calendar planners. All it needs is one API key, free from Google. No credit card registration involved.

💳 No card needed 🆓 Free inside the free tier 🔒 Key stays on your device
See how to get an API key

Before you start

Every tool is free, so anyone can give them a try. In return, please note the following before you start.

💰

Everything is free

Every tool is published free of charge. Pick only the ones you need.

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No individual support

Because the tools are free, we don't offer one-on-one support. Please refer to each tool's guide for how to use it.

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Updates still reach you

There's no support, but tools are improved from time to time, and new information is delivered to you automatically from the tool.

What is Dropper

“Just drop in a file, and the hassle is handled.” We call these little tools Dropper, and we build and release them as a series. The first one reads an event document, adds the date and venue to Google Calendar, and even writes the WhatsApp/SNS announcement for you. The second reads a single sheet with many dates on it — a year planner, for example — and puts them all into your calendar at once. They all work the same way — just drop — so anyone can use them, not only a particular group or sport. More tools will be added over time.