yTools
iPhone & iPad · Free
Write the day.
Star the keepers.
A low-friction diary for every entry — then only the ones you flag “show on timeline” become the vertical and Gantt highlight reel.
Get on the App Store — Free01
A diary first.
Not a form.
The note is the main field. Titles are optional. New entries stay off the timeline until you star them — writing never auto-promotes.
- Every day, every entryThe feed shows all of a child’s entries, newest first.
- Star in placeA ★ toggle on the card sets “show on timeline” without opening the editor.
- Age on the cardDate, age, category, photos, and the note sit on one card.
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Two ways to see
the highlight reel
Gantt is a pinch-to-zoom time axis with a focused event in the middle. Vertical is the classic rail, dot, and card. Both show only starred entries.
- GanttHorizontal axis, today marker, and a photo pane that follows the event nearest the center.
- VerticalA classic growth timeline for the same starred set.
- Title-less still labelsIf the title is empty, the first line of the note becomes the timeline label.
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Checkups and shots
already named
Templates cover checkups, vaccinations, school events, firsts, and birthdays. Applying one fills a suggested date from the child’s birth date — it does not force the timeline flag.
- Suggested dateTypical age in months becomes a date on the calendar.
- Photos and videoFree: 4 photos. After removing ads: 10 photos or videos per entry.
- Optional titleSave a title-less diary line. The timeline still has a label.
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More than one child.
The same house.
Each child has a name, birth date, and optional avatar. Family sharing and iCloud sync sit behind the same ¥400 “remove ads” purchase — invitees can accept a share without buying.
- Local firstEverything lives on the device. CloudKit is optional and uses your Apple ID.
- Family shareShare the household graph — children, entries, photos — from Settings after purchase.
- iPad tooThe same diary and timeline on the larger canvas.
Start with today.
Star later.
Free to keep a diary. Remove ads when you want iCloud, family sharing, and more photos.
- 1 Add a child Name and birth date. That is enough to start.
- 2 Write a day A note, a photo, a template if you want a checkup or shot.
- 3 Star the keepers Only starred entries appear on the Gantt and vertical timeline.
Optional in-app purchase “Remove ads” is ¥400 (non-consumable). It also unlocks iCloud sync, family sharing invitations, and 10 photos or videos per entry (free tier: 4 photos, no video).