Hmmsim vs Bus Simulator 3D Big City
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Hmmsim
Experience realistic train operations on a mobile platform. This simulator offers high-quality graphics and allows users to play PC-based add-ons, providing endless route possibilities.
- Realistic metro operation
- High-level graphics
- BVE Trainsim add-on support
- Infinite add-on customization
- Seoulmetro Line 2 route
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Hmmsim, the first Train Simulation game ever built in Korea, has been realized in mobile. Hmmsim features basic route based on Seoulmetro Line 2, realized in the highest level of graphic. Experience the metro operation. Also, for the first time in mobile Train Simulation game, Hmmsim can add BVE Trainsim Add-Ons. In Hmmsim, you can play BVE routes as the same which you used to do in your PC. This is the first mobile Train Simulator that you can infinitely add Add-Ons depending on your preference. See www.jeminie.net for details.
Bus Simulator 3D Big City
Experience realistic bus driving in a bustling city. Navigate diverse routes with various bus types, realistic traffic, and detailed graphics. Master smooth controls and physics to become the ultimate city bus driver.
- 12 unique buses
- Realistic passengers and traffic
- Detailed city maps and routes
- Multiple control options
- 3D graphics and physics engine
- Damage and refueling systems
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Bus Simulator 3D - the best game-simulator of bus driver in real City! Do you like driving big vehicles? Then you have to try this Bus Driving game! Smooth controls, realistic vehicle physics and challenging gameplay. Try to be the best Bus Driver in the real City! It's time to get on board and drive the bus to complete all the routes! Become the best driver of the coolest bus in the City! Features: - 12 Cool Buses (from microbuses to coach buses, including articulated) - Well detailed real passengers and pedestrians with realistic animations - Unique system of vehicle traffic - Realistic maps and detailed routes from short to long - Three types of the vehicle control: tilting , buttons and steering wheel controls. - Incredible 3D graphics and detailed world - Realistic physics engine: damage system of your bus, speedometer and refueling control - Addictive gameplay! Do you want to feel like a Real Bus Driver? Bus Simulator 3D is for you!
Screenshots
Verdict
The clearest difference is rating: Bus Simulator 3D Big City at 4.5 against Hmmsim's 3.7. Hmmsim's advantage is ads (none vs shown) and ratings volume (170 vs 13). On price, update cadence, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Bus Simulator 3D Big City holds the better App Store score, 4.5 against 3.7. That said, the two scores are not equally well evidenced: Hmmsim has 170 ratings behind it against 13, so its average is the more settled of the two. Written reviews complicate that: 70% of Hmmsim's written reviews are positive against 57% of Bus Simulator 3D Big City's, so the app with the better star average is not the one people write more warmly about.
Hmmsim ships an update every 5 months, Bus Simulator 3D Big City every 6 months. Both last shipped on November 1, 2026.
| Parameter | Hmmsim | Bus Simulator 3D Big City |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (170 ratings) | 4.5 (13 ratings) — better |
| Positive reviews | 69.8% of reviews — better | 56.9% of reviews |
| Number of ratings | 170 — better | 13 |
| Update frequency | Every 5 months — better | Every 6 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 7.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 211 MB | 459 MB |
| Age rating | 4+ | 4+ |
| Developer | Jemin Hwang | Oleg Andreev |
Customer experience
Hmmsim
Bus Simulator 3D Big City
Bugs and requests
Hmmsim
Reported bugs
3 issues- Play button not working
- Incompatibility with older devices
- Incorrect speed limit warnings
Requested features
5 requests- More routes and lines
- Ability to select different trains
- Scoring system based on timetable
- In-app route/addon downloads
- Loop the track for longer gameplay
Bus Simulator 3D Big City
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Hmmsim
No in-app purchases
Bus Simulator 3D Big City
No in-app purchases
Questions
Is Hmmsim free?
Is Bus Simulator 3D Big City free?
Which has better reviews, Hmmsim or Bus Simulator 3D Big City?
Do Hmmsim or Bus Simulator 3D Big City have ads?
Which is updated more often, Hmmsim or Bus Simulator 3D Big City?
Other comparisons
