Elf Diaries: Ideas & letters

The evening autopilot for your elf door: a plan for the whole elf season in seconds, ready-made elf letters to print and more than 60 tried-and-tested elf ideas. So the elf has been up to something every morning, without you racking your brains every evening.

Want to bring the Christmas elf and the elf door tradition into your home, but not work out every single night what the elf does tonight? The Elf Diaries app plans December for you.

HOW IT WORKS
1. Choose an elf character, set the name and the arrival day, enter your children's ages and your budget.
2. Tap "Let the elf plan": the app fills your elf days with elf ideas that fit.
3. Adjust your plan with a gesture: swipe left to clear a day, swipe right for another idea, press and drag to reorder.
4. Apply the plan and off you go. Every day you know what happens tonight and what you need for it.

ELF PLANNER WITH A STORY FRAME
The building site in front of the elf door, moving-in day, the elf days and the farewell, each with its own picture. The advent calendar runs from late November to Christmas Eve. Swap single days at any time, with a reminder for the evening.

ELF LETTERS TO PRINT
Five occasions: arrival, first-snow surprise, break, thank-you and farewell. Every elf letter with your child's name and your elf's name, in handwriting fonts, with more versions at the tap of a button. Print or share as a PDF.

MORE THAN 60 ELF IDEAS AND ELF PRANKS
Pranks, magic, crafts, riddles and small tasks, for example the toilet-roll maze, the cheeky biscuit thief or the frozen toothbrush. Every idea with step-by-step instructions, a materials checklist, age, duration and cost. Plus two printable notes: the elf's reveal and, for small tasks, the instructions for the children.

FILTERS THAT FIT
By type, age, time and cost. Save favourites and search for ideas.

YOUR PRIVACY
No sign-up, no ads. Your plans, names and notes stay on your device. Everything works offline. Anonymous usage statistics only if you switch them on.

WHO IT'S FOR
For parents whose elf moves in this December or comes back, and who want a magical Christmas season with the children, but not the night shift. For families with children from about 2 to 12.

WHAT IS AN ELF DOOR?
In December a little house elf moves in behind a tiny door. You never see him. At night he gets up to mischief, writes letters or leaves small surprises; in the morning the children discover his traces. He never watches anyone and never reports to anyone. The tradition comes from Scandinavia and has long been at home in Germany.

Elf Diaries is a project by K2 Solutions, Erlangen, Germany. Questions and wishes: hallo@k2-solutions.io

Recent changes:
New in 1.4.3: a picture on the countdown card

• Until your elf moves in, the Today card shows the finished elf door. Plan December ahead of time.
• Enjoying the app? A rating helps other families find it. Now right on the home screen.
• A language change shows in the planner at once. Moving the arrival day tidies up old plan days. Fixes.
• Elf Magic 2026 (one-off purchase): 70 ideas of the season. Bought the app before? It is yours automatically.