You are prompted to agree/disagree to the license when you first start the app:
As with any other internet software, such as your web-browser or email client, compliance with local laws and regulations is YOUR RESPONSIBILITY. You, and only you, are responsible for your actions.
This software is provided on an as-is basis, without any warranties or guarantees that it is free from defects, fit for a particular purpose, or non-infringing. The use of this software or any of the files downloaded using this software is at the sole risk of the end-user.
You acknowledge that DarkMX is ONLY a piece of software, much like a web-browser or email client, and that the creator of this software is not providing any kind of service. Any servers or content you access using this software are provided by other internet users that the creator of this software has NO control over or knowledge of. This software is fully decentralized and the creator does NOT provide any file indexing or location services for this software.
You acknowledge that this software is provided for personal use only, and you have no rights in regard to any intellectual property on or within this software. This software is the exclusive property of Tixati Software Inc.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
If for any reason a court of competent jurisdiction finds any provision of this license to be unenforceable, that provision of the license shall be enforced to the maximum extent permissible so as to effect the intent of the parties, and the remainder of this license shall continue in full force and effect.
DarkMX, the DarkMX logo, and all trademarks, service marks and trade names of DarkMX appearing in the DarkMX software or the DarkMX web site are owned by Tixati Software Inc. DarkMX trademarks, logos, service marks, and trade names may not be used in connection with any other product or service, or in any other manner that is likely to cause confusion.
I consider a proprietary darknet to be a huge red flag, since how can I see whether the darknet does what it claims to be doing.
I totally agree with you. While I trust the author who has been on freedom's side for 20 years, I understand that our collective criteria has changed and privacy/cryptographic tools should be open source to be trusted. The closed nature will be a reasonable barrier to many today.
I understand that both DarkMX and Tribler use a self developed onion router similar to Tor.
I hope you do not make the mistake and think that Tribler operates its own network? Although Tribler does have tribler-only users acting as proxies for Bittorrent transfers, to me that is still more Bittorrent than what DarkMX does.
Simply put DarkMX is a kind of DC++ but made on top of Tor's hidden services. So it is 'Tor native.' It is user-to-user, it does not multiplex or combine multiple sources to download from. Basically DarkMX is a continuation of Fopnu (which really isn't much different from DC++ except it doesn't need actual hosted hubs), but DarkMX runs inside Tor instead of clearnet.
I2Psnark + postman are just a preconfigured Bittorrent client for i2p and postman is a regular tracker that only runs inside i2p? Different softwares.
Assuming the Tor implementation is correct, DarkMX should provide the same guarantees as Tor Hidden Services do. i2p has a configurable amounts of hops (tunnels) so the speed/security setting is in your hands. Considering the little user base and attention both tools have, you should be fine doing regular stuff. There's a crazier option of running i2p with 0 tunnels (afaik possible) then solely relying on lack of attention and plausible deniability (unless subject to correlation attacks via timing).
PS: I don't use DarkMX much, so if the above description is inaccurate, please excuse and correct me. My reply should provide a good overview.
how similar is the DarkMX experience to that?
DarkMX is a single peer-to-peer and I don't expect the Tor network to be a limiting factor, then your speeds are limited by you and your peer only.