Hmmsim vs SenSim
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.
SenSim
Experience realistic train driving with a focus on precision. Control speed, time, and stopping points to simulate actual train operations. This simulation prioritizes authenticity over dramatic events.
- Realistic train driving simulation
- Focus on speed, time, and stop position
- Authentic operational experience
- No flashy accidents or crashes
- External route data available
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Realistic train driving simulator. Let's drive well with paying attention to speed, time and stop position.. This game is pursuing reality. There is no flashy accident, crash, derailment. If you like more routes, Please use external data via our website.
Screenshots
Verdict
The clearest difference is rating: SenSim at 4.3 against Hmmsim's 3.8. SenSim also leads on update cadence (every 2 months vs every 5 months). Hmmsim's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, review sentiment, 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.
SenSim holds the better App Store score, 4.3 against 3.8. Both are backed by a comparable volume of ratings — 168 and 36 respectively. Written reviews complicate that: 70% of Hmmsim's written reviews are positive against 67% of SenSim'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, SenSim every 2 months. The most recent releases landed on September 24, 2026 and September 25, 2026 respectively.
| Parameter | Hmmsim | SenSim |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (168 ratings) | 4.3 (36 ratings) — better |
| Positive reviews | 69.8% of reviews — better | 67.3% of reviews |
| Number of ratings | 168 — better | 36 |
| Update frequency | Every 5 months | Every 2 months — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 7.0 — better | 10.0 |
| Further details — not scored | ||
| Size | 211 MB | 207 MB |
| Age rating | 4+ | 4+ |
| Developer | Jemin Hwang | Hisashi Tsukui |
Customer experience
Hmmsim
SenSim
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
SenSim
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Hmmsim
No in-app purchases
SenSim
No in-app purchases
Questions
Is Hmmsim free?
Is SenSim free?
Which has better reviews, Hmmsim or SenSim?
Do Hmmsim or SenSim have ads?
Which is updated more often, Hmmsim or SenSim?
Other comparisons
