SimTunnel Lite vs STS2
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
SimTunnel Lite
Read full descriptionHide full description
SimTunnel Lite is designed to perform a quick tunnel analysis on your phone device. SimTunnel Lite is very simple and easy to use. SimTunnel Lite uses "rock-support interaction" or "convergence-confinement" method to estimate the deformation of circular tunnels in weak rock, and visualizing the tunnel interaction with various support systems. SimTunnel Lite has the following features: - SimTunnel Lite determines Factor of Safety (FOS) as the ratio of maximum support pressure to the support pressure required for equilibrium. - The Tunnel and Rock Parameters dialog allows you to define the tunnel and rock properties for model. - The Strength Properties which are required will depend on the strength criteria you have selected in Setting Page. - Both Mohr-Coulomb and Hoek-Brown strength criteria are available. - The parameter calculator dialogs are available to help you to calculate some of the parameters (i.e. GSI, mi, D, UCS, insitu stress and etc). - The support parameters dialog allows you to easily add support (i.r. Rockbolt) and define the support properties for the model. - Rockbolt support type can be added to the model. - The ground reaction curve (GRC) is always displayed in the output page. - The brief summary of analysis results and input data will be displayed in the Output Page. - The report button, allows you to save the current modelβs input and output information into PDF file. The generated report file can be sent out via email.
STS2
Read full descriptionHide full description
Smart Tunnelling System is a practical application specially designed for the tunnel construction industry. STS provides shield construction enterprises with comprehensive data collection, storage, monitoring and intelligent decision-making services based on big data analysis. It mainly realizes the functions of remote real-time monitoring, tunneling progress control, report management, statistical analysis and business management of roadheader cluster.
Screenshots
Verdict
The clearest difference is update cadence: STS2 at every 2 months against SimTunnel Lite's every 39 months. STS2 also leads on iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
SimTunnel Lite ships an update every 39 months, STS2 every 2 months. The most recent releases landed on October 12, 2026 and October 8, 2026 respectively.
| Parameter | SimTunnel Lite | STS2 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 39 months | Every 2 months β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.6 | 13.0 β better |
| Further details β not scored | ||
| Size | 5 MB | 76 MB |
| Age rating | 4+ | 4+ |
| Developer | Roozbeh Geraili Mikola | δΈιε·₯η¨θ£ ε€ιε’ζιε ¬εΈ |
In-app purchases
SimTunnel Lite
No in-app purchases
STS2
No in-app purchases
Questions
Is SimTunnel Lite free?
Is STS2 free?
Do SimTunnel Lite or STS2 have ads?
Which is updated more often, SimTunnel Lite or STS2?
Other comparisons















