ByeDPI vs GoodbyeDPI vs ByeByeDPI: three projects, one headache of a name

The short version

Why the confusion is structural, not your fault

GoodbyeDPI came first and set the naming pattern. ByeDPI is a different implementation of related ideas — a proxy you point applications at, with named methods like --split and --fake that we dissect in how ByeDPI works. ByeByeDPI then applied a similar name to an Android app. Add download portals that strip author names and mash descriptions together, and even careful readers end up installing a Windows tool on the advice of an Android article. That is precisely why our download page refuses to link anywhere except the official repositories: the name alone cannot tell you what you are getting, but the repository can.

The real differences that matter day to day

Scope. A SOCKS proxy only affects applications you point at it — a browser with the proxy set is covered, a game that ignores proxy settings is not. GoodbyeDPI's packet-level approach covers the whole Windows system, including stubborn apps, at the cost of needing to run with the privileges that packet interception requires. On Android the distinction vanishes: both Android apps route the whole device through VPN mode.

Tuning surface. ByeDPI exposes its methods as explicit, combinable options, with auto mode and host lists — powerful, and admittedly more to learn, as our settings ladder shows. If you enjoy understanding what a tool does, ByeDPI is the better read. If you want a Windows preset and minimal thinking, GoodbyeDPI's modes may suit you more. Neither is "more private": like ByeDPI, these are local desync tools, not VPNs, and none of them hides your IP address — a point our FAQ repeats because download portals keep implying otherwise.

Our recommendation, by situation

So much for the theory. Here is what we would actually install, machine by machine:

• Android: Start with ByeDPI for Android. It wraps the documented core, needs no root, and its settings map one-to-one onto the guides on this site. ByeByeDPI is a legitimate separate alternative, not a fake — just a different app, judged on its own repository.
• Linux: ByeDPI, straightforwardly. It is the native fit, with the full method set including md5sig fakes and a daemon mode.
• Windows, browser-focused: ByeDPI with the documented --split 1+s --disorder 3+s starting point.
• Windows, everything including non-browser apps: Try ByeDPI first; if proxy scope is the blocker rather than the bypass itself, GoodbyeDPI's system-wide approach is the rational next step.

Whichever you choose, keep the discipline from our support page: one tool at a time. Running two desync tools together scrambles both, and the resulting failure tells you nothing about either.

The wider family: SpoofDPI, and 'same idea' is not 'same tool'

Three names get the headlines, but the family is bigger, and tutorials treat its members as interchangeable parts. They are not. SpoofDPI is the name macOS and Linux users meet most: a small single-purpose command-line tool built around ClientHello fragmentation. It is a perfectly reasonable choice on a Mac, where ByeDPI has no native story of its own, and the ByeDPI Android project's own documentation points readers toward similar projects for other platforms rather than pretending otherwise. What it does not offer is ByeDPI's range — no comparable menu of combinable methods, no auto mode deciding when to intervene, no Android app. Single-purpose is a feature until your provider's filter shrugs at the single purpose.

Most wrong-tool installs follow one of three scripts, so here they are with their corrections. A tutorial tells you to run an .exe with numbered presets: that is GoodbyeDPI, Windows-only, whatever the article's headline called it. A tutorial tells you to install an APK and never mentions GitHub: stop, and find the actual repository — for ByeDPI for Android it is dovecoteescapee's, for ByeByeDPI it is romanvht's, and the APK should come from one of those two places or nowhere. A tutorial gives you a string of flags like --split and --fake: those are ByeDPI's, and they will do nothing typed into any other tool.

One mercy: switching costs less than it feels. Your desync settings do not transfer between projects — the flags, presets and strategy names are each tool's own dialect. But your findings transfer completely. If you know your provider reassembles fragments and falls only for fake packets, you know what to look for in any tool's vocabulary, and the second learning curve is measured in minutes. That, more than any single feature, is why we keep steering readers to understand the methods rather than memorise a command.