Comparison

GULANGYU vs The Tree That Ate Everything

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

Head to head
About

GULANGYU

Embark on a musical adventure to learn about conservation and saving the planet. This interactive story follows a young heroine as she travels the world to understand and combat global warming. Features original songs and beautiful artwork to engage young learners.

Highlights
  • Interactive storybook
  • Original songs
  • Bilingual (English/Chinese)
  • Conservation education
  • Climate change awareness
  • Beautiful artwork
Features
Read full description

Download Gulangyu and join our heroine, Xiao Rui, and her friends Na Na the parrot and Henry the baby dragon on a magical, musical adventure to learn about conservation and save the planet. The eight chapter book tells the story of how children can make a difference in the quest to save the planet through reducing, reusing, and recycling. This is the seventh educational app from the award-winning company Happy Diamond Music Studio. The app aims to teach children ages 4+ about conservation while providing them the tools to make a difference in the real world. The story features six original songs by renowned composer, Shirley Choi. When Xiao Rui discovers that her home, Gulangyu (an island off the coast of southeastern China and a UNESCO Heritage Site) is in danger from a gigantic wave that has been caused by global climate change, she is tasked by Riyanshi, the Earth Fairy to undertake an epic journey to stop the wave and learn how she and other children can stop global warming from destroying the planet. In the 80-minute story, Xiao Rui and her companions travel to the Amazon rainforest, icebergs in Greenland, solar farms floating in the lake that used to be a coal mine, and landfills where scientists perform research where they see the effects of climate change up-close and personal. Featuring beautiful original artwork, music your kids will want to sing along to, and a bilingual story (English and Chinese) - Gulangyu is a great opportunity for parents and teachers to start a conversation with even their youngest learners about their own carbon footprint and how they can impact stopping climate change. Conservation has never been as important as it is now, so download Gulangyu today and help kids understand how they can start saving the planet.

About

The Tree That Ate Everything

This app uses augmented reality to bring a children's book to life. Characters move, talk, and interact with 3D environments, enhanced by music and voiceovers for an immersive storytelling experience. Designed for all ages, it makes reading magical and engaging.

Highlights
  • Augmented reality book experience
  • Animated characters and 3D environments
  • Music and voiceover narration
  • Interactive storytelling
  • Easy to use for all ages
  • Offline access to content
Features
Read full description

"The Tree That Ate Everything" by Bob Feiner and illustrated by Gina Hagen is the story of Jake and Austin, who are twins. Jake has Down syndrome, while Austin is typical. On their birthday, they play with their toys, but a magical tree wants to join them. It also happens to be the tree's birthday. Using augmented reality, the reading experience is redefined by bringing the printed material to life. This enhancement of the learning process is applicable for content designed for both kids and adults. BRING STATIC PRINTED PAGES TO LIFE - Printed pages present a magical experience with augmented media content. Characters from the book move, talk and do things just like the story in the book. Scenarios and environments illustrated in the book are presented in 3D and can be viewed in many different angles. ENJOY THE DRAMA OF THE BOOK WITH MUSIC AND VOICEOVERS -Storytelling is enhanced by voiceovers and music. The app narrates the story alongside the animations and 3D illustrations to truly portray emotions, feelings and drama intended by the author. EASY TO ACCESS ANYTIME & ANYWHERE - Makes it very easy for users to download the app and instantly get started with the experience. It is designed for all age groups. EASY TO USE WITH NO PRIOR EXPERIENCE NEEDED - The user points at the phone at the book and the app does the rest. The animations and sounds auto start as long as the page is open. Turning the page triggers the following page content. So essentially it is no different from reading the book page by page.

Screenshots

GULANGYU4 screens
The Tree That Ate Everything4 screens

Verdict

The call

The clearest difference is update cadence: GULANGYU at every 2 weeks against The Tree That Ate Everything's every 4 months. GULANGYU also leads on ratings volume (8 vs 2) and iOS requirement (11.0 vs 13.0). The Tree That Ate Everything's advantage is rating (5.0 vs 4.6). 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

The Tree That Ate Everything holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 8 and 2 respectively.

UpkeepUpdate frequency

GULANGYU ships an update every 2 weeks, The Tree That Ate Everything every 4 months. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.

Scorecard4 real differences · 6 level
GULANGYU versus The Tree That Ate Everything: the parameters behind the verdict, then further details
ParameterGULANGYUThe Tree That Ate Everything
PriceFreeFree
Rating4.6 (8 ratings)5.0 (2 ratings) — better
Positive reviews83.3% of reviews—
Number of ratings8 — better2
Update frequencyEvery 2 weeks — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better13.0
Further details — not scored
Size788 MB196 MB
Age rating4+4+
DeveloperSiu lui shirley ChoiKAALO

Customer experience

GULANGYU

All ratings8 ratings
Positive87.5%
Neutral0.0%
Negative12.5%
Written reviews6 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

The Tree That Ate Everything

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

GULANGYU

No in-app purchases

None

The Tree That Ate Everything

No in-app purchases

Questions

Is GULANGYU free?
GULANGYU is free to download, with no in-app purchases.
Is The Tree That Ate Everything free?
The Tree That Ate Everything is free to download, with no in-app purchases.
Which has better reviews, GULANGYU or The Tree That Ate Everything?
The Tree That Ate Everything is rated higher. GULANGYU averages 4.6 out of 5 from 8 ratings, while The Tree That Ate Everything averages 5.0 from 2 ratings.
Do GULANGYU or The Tree That Ate Everything have ads?
Neither GULANGYU nor The Tree That Ate Everything shows ads.
Which is updated more often, GULANGYU or The Tree That Ate Everything?
GULANGYU ships an update every 2 weeks, and The Tree That Ate Everything every 4 months. Most recently, GULANGYU was updated on October 24, 2026 and The Tree That Ate Everything on October 18, 2026.

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