Comparison

Hoopa City vs Train Kit

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

Head to head
About

Hoopa City

Design and construct your own unique city by combining various materials to create diverse buildings. Experiment with different combinations to discover new structures and fill your world with shops, parks, and more. Save multiple creations and track your discoveries with a helpful in-game guide.

Highlights
  • Build your own city
  • Experiment with 7 world-building materials
  • Discover different buildings
  • Save multiple cities
  • Building Glossary & Guide
  • No time limits or strict rules
Features
Read full description

**From the makers of Dr. Panda Games! Plan and build in Hoopa City! Combine different materials to build roads, houses, and much, much more with your favorite Hippo from the Dr. Panda games! Can you find the secret combination for each building? Let your imagination run wild and build a village, town, or even a huge city of your own design in Hoopa City! Use different materials and combine them to create all sorts of buildings! Fill the landscape with shops, roads, schools, and even theme parks or stadiums! Each building takes a special combination of materials to create, so don’t be afraid to experiment! Whether you want to build a shopping paradise, a beach resort, or a quiet forest town, you can with Hoopa in Hoopa City! Hoopa City is designed with kids in mind, but people of all ages can build and have fun! **Top 5 on Kids' apps on the App Store in more than 30 countries! **Awarded with an Editor's Choice Award by Children's Technology Review! **Winner of a NAPPA Silver Award! **Top city-building app for kids by USA Today! Key features: - Build your own city – however you like! - Play and experiment with 7 world-building materials like water, electricity and brick! - Discover all of the different buildings! - Save multiple cities! If you’d like to make a new city, just go back to the start screen! Your cities will be saved automatically, so you can pick up right where you left off. - Building Glossary & Guide - It will keep track of how many buildings you've discovered, and remember how to make them! If you want to make a building again, just check the book in the upper right-hand corner of the screen and see! It’ll also show you how many buildings you have left to discover. - Play however you want! No time limits or strict rules! - No in-app purchases or third party ads Privacy Policy As a designer of kids’ games, we understand how important privacy is in this modern, digital world. You can read our privacy policy here: http://www.drpanda.com/privacy About Dr. Panda Dr. Panda is a developer of games for kids. We develop games with educational values that help kids learn about the world. All of our games are safe and do not contain inappropriate content. If you’d like to know more about us and how we design games for kids, visit our website www.drpanda.com/about. If you have any questions, feel free to send us an email at support@drpanda.com or contact us on Facebook (www.facebook.com/drpandagames) or Twitter (www.twitter.com/drpandagames) or Instagram (www.instagram.com/drpandagames).

About

Train Kit

Build immersive 3D train worlds by easily dragging and dropping track tiles. Add trains, tunnels, and scenery to create unique layouts. Experience your creations from the driver's seat.

Highlights
  • Drag-and-drop track building
  • Real-time train simulation
  • Customizable train creation
  • Immersive 3D environments
  • Train driver perspective
  • Add tunnels, bridges, and scenery
Features
Read full description

Hop on board! Train Kit lets you build immersive little train worlds. EASY TO BUILD Simply add and move track tiles by dragging them with your finger while trains run around you. There’s no need to switch between modes – everything is on one screen. GET CREATIVE No rules, but endless options. Add trains, tunnels, junctions and scenery in a totally open-ended world. 3D Immerse yourself in a fully 3D world. You can even put yourself in the driver’s seat and see what it’s like to drive around your track from the train’s cabin. FEATURES - Add track tiles which snap together in a grid - Tunnels and bridges - Switching tracks allow your trains to take different routes - Drop trains and carriages onto your track - Create your own unique train by mixing carriages together - Simple train controls allow you speed up, slow down or reverse your trains - Adding scenery and building objects brings your world to life - Train driver view allows you to whizz through your world - No in-app purchases - No adverts

Screenshots

Hoopa City4 screens
Train Kit4 screens

Verdict

The call

The clearest difference is ratings volume: Train Kit at 2.4K against Hoopa City's 101. Hoopa City's advantage is price ($3.99 vs $6.99) and iOS requirement (8.0 vs 15.6). On rating, review sentiment, update cadence and ads 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

Hoopa City costs $3.99 and Train Kit $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for Hoopa City against 4.6 for Train Kit. That said, the two scores are not equally well evidenced: Train Kit has 2.4K ratings behind it against 101, so its average is the more settled of the two. Written reviews are what separate them: 87% of Hoopa City's written reviews are positive against 83% of Train Kit's.

UpkeepUpdate frequency

Hoopa City ships an update every 5 months, Train Kit every 3 months. The most recent releases landed on October 27, 2026 and October 26, 2026 respectively.

Scorecard3 real differences · 7 level
Hoopa City versus Train Kit: the parameters behind the verdict, then further details
ParameterHoopa CityTrain Kit
Price$3.99 — better$6.99
Rating4.6 (101 ratings) — better4.6 (2.4K ratings)
Positive reviews86.9% of reviews — better82.9% of reviews
Number of ratings1012.4K — better
Update frequencyEvery 5 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better15.6
Further details — not scored
Size238 MB108 MB
Age rating4+4+
DeveloperDr. Panda LtdPhd Apps LLC

Customer experience

Hoopa City

All ratings102 ratings
Positive87.3%
Neutral4.9%
Negative7.8%
Written reviews168 reviews
Positive86.9%
Neutral1.8%
Negative11.3%

Train Kit

All ratings2,380 ratings
Positive89.1%
Neutral5.0%
Negative5.8%
Written reviews123 reviews
Positive82.9%
Neutral5.7%
Negative11.4%

User reviews

Hoopa City

From 101 App Store ratings

What we love

  • 🎨 Creative building and customization options
  • 👶 Engaging for children across multiple age groups
  • 🧩 Fun puzzle-like combination discovery mechanics
  • 🎮 No ads or in-app purchase pressure
  • 🎵 Peaceful, non-repetitive music and sound design

Room to improve

  • 🐛 White screen crashes on startup
  • 🐛 App crashes when placing items
  • 🐛 Volume controls don't work
  • 🐛 Saved games disappear or fail to load
  • 🐛 Building combination guide stops working

Train Kit

From 2.4K App Store ratings

What we love

  • 👍 Fun, simple, and satisfying game
  • 🚀 Easy to use and intuitive controls
  • 🎨 Allows for creativity and imagination
  • 💫 Engaging 3D visuals and animations
  • 🎢 Enjoyable for both kids and adults

Room to improve

  • 🐛 Frequent crashes and bugs
  • 🔍 Limited world/map size
  • 🚧 Lack of save/load functionality
  • 🚂 Limited train and vehicle selection
  • 🔧 Some issues with piece placement and controls

Bugs and requests

Hoopa City

Reported bugs

7 issues
  • White screen on app launch that never disappears
  • App crashes when attempting to place buildings
  • Volume/sound controls malfunction
  • Saved cities disappear after loading
  • Building combination guide stops providing information
Show 2 more
  • App won't work after update installation
  • High storage consumption on device

Requested features

13 requests
  • More building combinations and options
  • Ability to name cities
  • Zoom feature to view animations up close
  • Landmarks (Eiffel Tower, Sydney Opera House, etc.)
  • Interior building exploration and interaction
Show 8 more
  • Bridge building capability
  • Larger canvas/world size for building
  • Delete city button for easier reset
  • Persistent unlocked items across new worlds
  • More building variety (water tower, zoo, race track, etc.)
  • Progression feedback and positive reinforcement
  • Ongoing updates with new content
  • In-game hints or clues for locked combinations

Train Kit

Reported bugs

5 issues
  • Trains flying out of the screen
  • Inability to place certain track pieces
  • Pieces moving unexpectedly when switching tracks
  • Crashes and freezes, especially on older devices
  • Touch controls not always registering accurately

Requested features

6 requests
  • Add more trains, cars, and other vehicles
  • Expand world/map size and allow for more building
  • Implement save/load functionality to preserve creations
  • Add more building pieces, decorations, and customization options
  • Improve stability and fix crashes/bugs
Show 1 more
  • Introduce new gameplay modes and challenges

In-app purchases

None

Hoopa City

No in-app purchases

None

Train Kit

No in-app purchases

Questions

Is Hoopa City free?
Hoopa City costs $3.99, with no in-app purchases.
Is Train Kit free?
Train Kit costs $6.99, with no in-app purchases.
Which has better reviews, Hoopa City or Train Kit?
Hoopa City is rated higher. Hoopa City averages 4.6 out of 5 from 101 ratings, while Train Kit averages 4.6 from 2.4K ratings.
Do Hoopa City or Train Kit have ads?
Neither Hoopa City nor Train Kit shows ads.
Which is updated more often, Hoopa City or Train Kit?
Hoopa City ships an update every 5 months, and Train Kit every 3 months. Most recently, Hoopa City was updated on October 27, 2026 and Train Kit on October 26, 2026.

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