4.1
338 reviews
100K+
Downloads
Content rating
Everyone
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this app

You know the problem? You have a huge collection of unsorted bricks and a lot of instructions of all sets that belong to the bricks. It's a huge job to collect all the parts from the unsorted bricks.

This app will help you to keep track of all the parts that you've collected so far and all the remaining parts.

This is how it works:
- Enter a set number. The app will collect all set information and will display it in a nice way on the screen
- Then the app will present a list of all parts and minifigs that belong to the set in a clear and user-friendly way
- In this list you can indicate which parts you've already collected
- There are different filter to make your life easier and speed up the job

This app has been developed with the

The app was developed with the thought in mind to save the LEGO® fan a lot of time figuring out the sets.

If you experience a problem with the app, please contact me so I can fix it instead of giving a bad rating. I am actively working on the app.

Have fun and I am open to suggestions to further improve the app.
Updated on
Sep 29, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

Ratings and reviews

4.3
307 reviews
Samuel Alexander
August 26, 2025
My OCD feels good with this tool, but with the update, I was beside myself... After having spent several months cataloging and finding missing parts for nearly 100 sets, it crashed when you open any sets' part list. Old school/dated, yet easy system to upload missing parts to bricklinks wanted list is amazing. But now, with no way of backing up my "data", I was worried that countless hours of late night counting and organizing to be lost. Nevertheless the creators patched it in a day. THANK YOU!
Did you find this helpful?
Jasper van den Bergh
August 26, 2025
Hi, the crashes have been fixed it the latest update
MC Smith
August 14, 2025
I am new to the Lego world and stumbled across this app. It is exactly what I needed. It's the only app that actually let's you do inventory (without a book) and it shows you what pieces are missing. I agree with others it would be nice to have a complete list of missing parts from all the sets with pictures & descriptions so that when Im searching bulk bins I can check off the parts that I found ~ that feature could be here I just haven't found it. Thanks for creating this app :)
Did you find this helpful?
Kailyn Champlin
June 10, 2022
I just bought a huge box of unsorted Legos on consignment with their instruction booklets and had no idea where to start with matching them up. I dig a little digging online and found a comment on a Lego website by the creator of this app with a link to download it and couldn't believe it - this was EXACTLY what I was looking for. Thank you so much for creating this! This will help save us tons of time in sorting - not to mention with all the Lego sets we already have that are demolished.
2 people found this review helpful
Did you find this helpful?

What’s new

Big update including crash fixes
- New UI
- Import/Export of your data
- Overview of all missing parts of all sets
- Various improvements and bug fixes