Petalog — Petals continue on.

Update Information

We've expanded the service to allow creating up to 5 sheets.

Why We Created This

Before my child's regular school exams, I wanted to make their efforts visible by subject. At home, we printed a table on paper and used it.

It was a very simple method—just sticking stickers on the subjects we studied.

However, when we started using it about two months before the test, the paper would end up spread across multiple pages.

"How much progress have we made so far?"
"Which subjects are we focusing too much on?"
"How much time is left until the actual exam?"

These things became a bit harder to see at a glance.

So, while keeping the casual feel of the paper table, we created "Petalog"—an app where you can quickly record your efforts with a tap on your smartphone.

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What Kind of Service Is It?

Petalog is a simple record sheet where you can log your study efforts, practice sessions, exam preparation, and more—just like placing stickers.

It's very easy to use.

1. Tap the cell you want to record
2. Choose a sticker from "A little," "Solid," or "Full-on"

That's it.

There's no need to enter detailed time logs or register material names.

When you look at the weekly table, you can see at a glance:

• What you studied
• Which areas are still blank
• Which items you're focusing too much on

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Reflection Made Simple Too

You can review your recorded activities by week or across the entire period.

You can check your effort for each item using a horizontal bar graph, so it becomes easier to notice imbalances like:

"I've been doing too much math"
"Science was a bit neglected"

Rather than managing precise study hours, we've designed it as a record for viewing the balance of your efforts.

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You Can See the Path to Exam Day

When creating a sheet, you can set:

• The exam date
• How many weeks before you want to start
• The items you want to track

On the screen, you can record weekly, and weekends and holidays are displayed in an easy-to-distinguish way.

We made it so you can progress little by little while seeing "how many weeks are left."

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You Can Use It in These Situations

• Managing subject balance before regular exams
• Preparing for certifications like TOEIC or Eiken
• Recording practice routines for musical instruments
• Language learning
• Programming learning
• Reading or creative writing—whenever you want to pursue multiple things in parallel

It's not just for studying—we designed it for situations where you want to continue several things in a balanced way.

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What We Valued Most

The most important thing about Petalog is:

Recording itself shouldn't be a burden.

And:

Just by looking at the table, your efforts and imbalances naturally become visible.

We combined the casual feel of a paper sticker chart with the clarity and ease of reflection that a web app provides.

Did it? Petal it.
A simple record sheet where your efforts and imbalances come into view.