Comparison

LEGO® Boost vs stranzer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

LEGO® Boost

Bring LEGO creations to life with this app! Use drag-and-drop coding to make models move, talk, and respond. Access building instructions and enjoy over 60 activities, or code your own unique models.

Highlights
  • Drag-and-drop coding interface
  • Digital LEGO building instructions
  • Over 60 fun activities
  • Codeable LEGO models
  • Control LEGO creations from mobile device
  • Combine with other LEGO sets
Features
Read full description

The LEGO® Boost app is available for download until January 1st. Combine this app with the LEGO® BOOST Creative Toolbox (17101) set to bring your creations to life! Enjoy more than 60 fun activities with simple drag-n'-drop coding, watch videos and access digital LEGO Building Instructions. Have fun with LEGO models that can move, talk and respond to real-world events. Take your experience to another level with advanced coding. Build and BOOST your own robot toy creations and control them from your mobile device. All it takes is three simple steps: BUILD, CODE and PLAY! Is your device compatible? Please go to LEGO.com/devicecheck to check if your device is compatible. Ask your parents’ permission before going online. LEGO® BOOST App Feature List - Access digital LEGO® Building Instructions for all 5 LEGO BOOST models included with the 17101 LEGO BOOST Creative Toolbox. - BUILD, CODE and PLAY with CODABLE LEGO® models. - Bring your LEGO® BOOST creations to life with the simple drag-n'-drop PROGRAMMING interface. - Enjoy more than 60 fun ACTIVITIES. - Imagine, build and code your own creations. Kick-start your creativity—3 inspirational models included with the app. - Combine 17101 LEGO BOOST with the LEGO® City 60194 Arctic Scout Truck to control and drive the vehicle! Use the app to operate the forklift, examine samples with the color sensor, help the whale back into the water and much more. - Combine 17101 LEGO BOOST with LEGO® NINJAGO® 70652 Stormbringer and set the Lightning Dragon free! Use the app to control the fearsome beast, fire the shooters, create a color-sensing ejector seat and much more! - Go to LEGO.com/devicecheck to check if your device is compatible. Ask your parents’ permission before going online. LEGO BOOST set (17101) Feature List - Includes 844 LEGO® pieces, plus a LEGO Move Hub, Interactive Motor and a Color & Distance Sensor. - Move Hub features Bluetooth Low Energy (BLE) connectivity, 2 encoded motors, activation button, internal tilt sensor and a light. - Interactive Motor is an encoded motor. - Color & Distance Sensor detects distance, motion and color, and can also function as a light. - Create and code Vernie the Robot, Frankie the Cat, the M.T.R.4 (Multi-Tooled Rover 4), the Guitar 4000 and the AutoBuilder. - Rotate Vernie’s head to activate its shoulder-mounted spring-loaded shooter. - Build the M.T.R.4 (Multi-Tooled Rover 4) and try out the different tool and customization attachments for an array of exciting activities. - Learn songs and rock out with the Guitar4000! - Look after your own pet with Frankie the Cat. Be sure to feed it the right food—or it might get upset! - Construct, code and operate the AutoBuilder to produce real miniature LEGO® models. - Build and code robots and models, and complete exciting activities with the playmat and intuitive LEGO® BOOST app. The LEGO® BOOST Creative Toolbox set (17101) is sold separately. For app support contact LEGO Consumer Service. For contact details refer to http://service.lego.com/contactus Our privacy policy and terms of use for apps are accepted if you download this app. Read more on http://aboutus.lego.com/legal-notice/Privacy-Policy and http://aboutus.lego.com/legal-notice/terms-of-use-for-apps There’s no third-party advertising. LEGO marketing content and information is served, for instance LEGO news about LEGO sets and other LEGO games, in hope of inspiring children’s creative play. LEGO and the LEGO logo are trademarks of the LEGO Group. ©2017 The LEGO Group.

About

stranzer

This app helps shoppers research cannabis strains before visiting a dispensary. It provides details on strain lineage, dominance, and terpenes, with options to take notes and mark favorites. Users can also create a shopping cart list for easy comparison.

Highlights
  • Look up strain lineages
  • View strain details (dominance, terpenes)
  • Take notes on strains
  • Mark strains as favorite
  • Create shopping cart lists
Features
Read full description

i wrote it to help me when i go shopping: • look up strain lineages (parents and children) • get details on strains including dominance value and main terpenes • the ability to take notes on individual strains and mark as favorite • separate shopping cart list for comparing strains at the dispensary

Screenshots

LEGO® Boost4 screens
stranzer3 screens

Verdict

The call

The clearest difference is review sentiment: stranzer at 100% against LEGO® Boost's 66%. stranzer also leads on update cadence (every 11 days vs every 3 months) and rating (5.0 vs 4.6). LEGO® Boost's advantage is ratings volume (4.3K vs 2) and iOS requirement (13.0 vs 18.2). On price, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

stranzer holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: LEGO® Boost has 4.3K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 66% of LEGO® Boost's written reviews are positive against 100% of stranzer's.

UpkeepUpdate frequency

LEGO® Boost ships an update every 3 months, stranzer every 11 days. The most recent releases landed on October 11, 2026 and October 10, 2026 respectively.

Scorecard5 real differences · 5 level
LEGO® Boost versus stranzer: the parameters behind the verdict, then further details
ParameterLEGO® Booststranzer
PriceFreeFree
Rating4.6 (4.3K ratings)5.0 (2 ratings) — better
Positive reviews65.6% of reviews100.0% of reviews — better
Number of ratings4.3K — better2
Update frequencyEvery 3 monthsEvery 11 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better18.2
Further details — not scored
Size717 MB17 MB
Age rating4+17+
DeveloperLEGO System A/Sjorge mazzei

Customer experience

LEGO® Boost

All ratings4,262 ratings
Positive90.7%
Neutral3.0%
Negative6.3%
Written reviews392 reviews
Positive65.6%
Neutral8.4%
Negative26.0%

stranzer

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

LEGO® Boost

Reported bugs

5 issues
  • App crashes and freezes
  • Firmware update failures
  • Bluetooth connection problems
  • Lost progress and build instructions
  • Sensor and motor issues

Requested features

5 requests
  • More advanced programming blocks
  • Ability to save and load projects
  • Improved instructions and documentation
  • Compatibility with more devices
  • Easier part organization

stranzer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

LEGO® Boost

No in-app purchases

None

stranzer

No in-app purchases

Questions

Is LEGO® Boost free?
LEGO® Boost is free to download, with no in-app purchases.
Is stranzer free?
stranzer is free to download, with no in-app purchases.
Which has better reviews, LEGO® Boost or stranzer?
stranzer is rated higher. LEGO® Boost averages 4.6 out of 5 from 4.3K ratings, while stranzer averages 5.0 from 2 ratings.
Do LEGO® Boost or stranzer have ads?
Neither LEGO® Boost nor stranzer shows ads.
Which is updated more often, LEGO® Boost or stranzer?
LEGO® Boost ships an update every 3 months, and stranzer every 11 days. Most recently, LEGO® Boost was updated on October 11, 2026 and stranzer on October 10, 2026.

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