iPhone Screenshots

iPad Screenshots


Train simulation game Hmmsim has become new and diverse!
In Hmmsim 2, advanced graphics, new map, outer view of train, dynamic trains and scoring mode has been added.
Also, the performance in BVE Add-On operation has been upgraded, and animation file and doppler sound is available.
Hmmsim 2 features basic routes based on Seoul Subway Line 2 and Line 7, realized in the highest level of graphic.
Experience the metro operation.
Also, Hmmsim 2 can add BVE Trainsim Add-Ons.
In Hmmsim 2, you can play BVE routes as the same which you used to do in your PC.
You can infinitely add Add-Ons depending on your preference.
See www.jeminie.net for details.

What's New in Version 1.2.7

This app has been updated by Apple to display the Apple Watch app icon.
- Added Tutorial
- Added Japanese language
- Fixed Diagram bug



Jemin Hwang








187.6 MB

Game Center


VPP Device Licensing



Rated: 4+


iOS 7.0 or later


iPhone 4, iPhone 4S, iPhone 5, iPhone 5c, iPhone 5s, iPhone 6, iPhone 6 Plus, iPhone 6s, iPhone 6s Plus, iPhone SE, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XR, iPhone XS, iPhone XS Max, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone SE (2nd generation), iPhone 12, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 12 mini, iPhone 13, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 13 mini, iPhone SEThirdGen, iPad 2 (Wi-Fi), iPad 2 (3G), iPad (3rd Generation) (Wi-Fi), iPad (3rd Generation) (4G), iPad (4th Generation) (Wi-Fi), iPad (4th Generation) (4G), iPad (5th Generation) Wi-Fi, iPad (5th Generation) Wi-Fi + Cellular, iPad (6th generation) Wi-Fi, iPad (6th generation) Wi-Fi + Cellular, iPad Pro, iPad Pro (Cellular), iPad Pro (9.7-inch), iPad Pro (9.7-inch) (Cellular), iPad Pro 12.9-inch (2nd generation), iPad Pro 12.9-inch (2nd generation) Wi-Fi + Cellular, iPad Pro (10.5-inch), iPad Pro (10.5-inch) Wi-Fi + Cellular, iPad Pro (11-inch), iPad Pro (11-inch) Wi-Fi + Cellular, iPad Pro 12.9-inch (3rd generation), iPad Pro 12.9-inch (3rd generation) Wi-Fi + Cellular, iPad Air, iPad Air (Cellular), iPad Air 2, iPad Air 2 (Cellular), iPad Air (3rd generation), iPad Air (3rd generation) Wi-Fi + Cellular, iPad mini (Wi-Fi), iPad mini (4G), iPad mini Retina, iPad mini Retina (Cellular), iPad mini 3, iPad mini 3 (Cellular), iPad mini 4, iPad mini 4 (Cellular), iPad mini (5th Generation), iPad mini (5th Generation) Wi-Fi + Cellular, iPad (7th generation) Wi-Fi + Cellular, iPad Pro 11-inch (2nd generation), iPad Pro 11-inch (2nd generation) Wi-Fi + Cellular, iPad Pro 12.9-inch (4th generation), iPad Pro 12.9-inch (4th generation) Wi-Fi + Cellular, iPad Air (4th Generation) (Wi-Fi), iPad Air (4th Generation) (Wi-Fi + Cellular), iPad (8th generation) Wi-Fi, iPad (8th generation) Wi-Fi + Cellular, iPad Pro 11-inch (3rd generation), iPad Pro 11-inch (3rd generation) Wi-Fi + Cellular, iPad Pro 12.9-inch (5th Generation), iPad Pro 12.9-inch (5th Generation) Wi-Fi + Cellular, iPad (9th Generation), iPad (9th Generation) Wi-Fi + Cellular, iPad mini (6th Generation), iPad mini (6th Generation) Wi-Fi + Cellular, iPad AirFifthGen, iPad AirFifthGenCellular, iPod touch (5th generation), iPod touch (6th Generation), iPod touch (7th generation), Apple Watch Series 4, Apple Watch Series 5, Apple Watch Series 6 (GPS), Apple Watch Series 6 (GPS + Cellular), Apple Watch Series SE (GPS), Apple Watch Series SE (GPS + Cellular), Apple Watch Series 7 (GPS), Apple Watch Series 7 (GPS + Cellular)



Customer Ratings

All Versions

62 Ratings

Customer Reviews

Good game

It’s a good game but could u add platform doors like your last game

Great fun

OSL Gaming
Version 1.2.2

Very Good but...

Version 1.2.7
I think we need more routes and lines, also add signal lights and passengers, it’s boring waiting at a station when you know nobody is going to get on the train, also add more routes to line 2, line 7 has 4 routes and line 2 only has 2, maybe add two more destinations for line 2 for a future update.

Best proof of concept

Version 1.2.0
Not optimised for iPhone X and later

Do trainspotting

Version 1.2.6
Add trainspotter mode so we can see trains go by.

One more UK train

Version 1.2.3
If you could add the Eurostar in the game that would be good

Impossible to install routes on iOS

Hmmsim 2 reviewer
Please make it easier to install routes on iOS or please put them in the game.can you put a London Underground route in please

What an amazing simulator!

I have to say, these graphics are phenomenal. I have Hmmsim 1 and I think that is worth money, I would pay a pound for that! What other people have to think about is when they complain there aren't enough routes for the money, they should think about the graphic detail. However, to the developers and Jeminie could you possibly add a few more routes, especially outdoor ones. It would be much appreciated.

Best Train Sim

Is definitely the best Train Sim on App Store graphics are excellent.Yes you can add routes without PC plenty off videos on YouTube to show you how.I have 4or5 NYC subway routes on mine added via ITunes

One thing

Could you add passengers and Screendoors as in the scenario country, they have screendoors in the stops. I will rate five when this is added.

Great simulator but needs other additions

This is a great game for those people who like specific train simulators which involve judgement and multi tasking and awareness...However adjustments need to be made such as added simulated passengers getting on and off as well as unique stations relating to the place... Hopefully these may come in an update but I would recommend this to anyone... It is worth the money if you play it a lot.😀😀😀😀


Very enjoyable.

Good but not enough.

Very good accuracy and detail, but a bit naughty to say that there are add-ons in the description when the add-ons are only available on the PC version because that was the selling factor for me. Only one route on the iPad severely limits the longevity of the game, otherwise it would be fantastic.
Edit: There are add ons, but you have to download them on a PC and convert them to iOS format, but the process is so long winded and complicated that I gave up trying after several hours trying to convert 4 different routes, following the instructions to the letter, I didn't manage to get any of them working.

Good but...

Top cats
Good but u could i add pessengers on the train and ok the station
So the passengers get on the train


Penguin ojc
This is a amazing app bought it yesterday best train game ever

Train obsessed

Love the simulation but would like more attention paid to the design of the stations such as steps that go nowhere.


To make there be people.To have different lines and to make BVE add ons available on Ipad

I rate it 5 but...

It could be better if
I rate this cool game 5 but I think you should add some passengers and please less subways more outside tracks. Why does it say stuff in a different language then it says it in English. Please fix it. 🙈

Where's the routes?

Can I add new routes without a PC or mac?

Amazing, the best metro one out there ...but

Only problems are;
Addons are a pain
It is too similar to the free version
Maybe add a career mode or something like that and some passengers or pass anger problems that arise.
For future updates working signals would be nice also.
I would definitely buy one for the London Underground!

Really good

Great graphics, works fine, plenty of routes, only downfall is the way the points work ( for stopping accuracy etc.)

So far, so so good!

The Growl
It's a brilliant improvement from the first version let me say that. Timetables, a new route, modes. Brilliant. I think it should've been a free update, but hey ho, it's better than the first version. But one thing I have with it is the way the camera moves, doesn't feel natural, and you can't move the whole way around. It doesn't have a proper cabin view. Just a blank space again. This is something which hopefully will be added, and also some free downloadable content (eg. Birmingham X City) so that you don't have to plug in to the computer and always convert and sync. But overall it's a good app which you should give a spin.


Solo county route
Hi great game but please give us signals that work to make the game more fun and harder


Best train simulator on the App Store

Awsome game

This is so awsome but could you add the safety doors like in the old version but you can still toggle them on and off that would be great and add them on both maps


Brings back memories of seoul...love it

Excellent but...

A really great train sim - easily the best on the App Store for general realism but why no announcements as per version 1? The voice was part of the experience of a foreign metro. Please bring it back. IAP for other routes would be great too - the other method is just to complex for a numbskull like me! Worth £1.49? Yes!

Awesome! Massive improvement to original game!

This is the best train sim game on the market yet! Stunning graphics and dozens of stations to make the fun last! It seems that I am the first one to try this app and I hope that all the other reviews to come are positive. It's good to see that the developers have responded to our suggestions from the predecessor (HmmSim). This is the second version and it is much better. After realising how good the original game was, I wasted no time in spending £1.49 on what I knew would be a massive improvement. However, I am slightly disappointed to find that some of the features from the original game have been removed. What happened to the automated announcements? Also, a couple of other improvements would be to have passengers on the platforms and track signals that actually change colour. Why not add some more routes in different cities next time, perhaps London? These improvements would make it a 5* app. But this the best train sim out there and totally worth the small price. I know that the original game is free, but this new version is much, much better and is worth the money when you take in mind how many improvements have been made. Well done developers!