a. Grin followed a highly principled, cypherpunk ideology – including no token premine or ICO, as well as volunteer-based development – Beam sought VC funding and hired a team of developers to work on the software full-time, allowing it to speed ahead of Grin in its implementation. “Grin is structured as a research project. They do not receive any outside funding except for donations, they do it part-time, they’re doing it very slowly,” Romanov said.
b. Grin takes a different approach, relying on a community funding model that is similar to the one utilized by the monero project. And while it’s a less reliable income source, Grin sees this as an advantage that ultimately increases the security of the project.
Beam takes its example from privacy-centric cryptocurrency zcash, maintaining a corporate structure, and funneling a portion of the block reward into a Foundation to support the blockchain’s development.
c.Beam has a heavy emphasis on usability, having built a simple wallet interface that is considered central to the project’s overall value-add.In addition to being designed from a user-friendly perspective, the wallet boasts implementations in different operating systems, including MacOS, Windows, and Linux. Beam will also release a light client alongside its mainnet release.
Grin, however, currently only offers a command-line wallet, and is less accessible for non-technical users.
d. For both cryptocurrencies, the launch of their mainnets represents only the first step. Both cryptocurrency projects have plans to implement new and experimental features. For example, Beam cited its plans to integrate with BOLT, the privacy-centric lightning implementation, as well as adding atomic swaps and other features.Yeastplume from Grin cited “tentative plans for enhancements,” while Peverell from beam said that “we have tons of improvements in usability, scalability and privacy in mind.”
2- Concerns that both implementations may potentially be vulnerable to machine-learning analysis – due to the design’s failure to conceal inputs and outputs. They implement Dandelion to better conceal these potential leaks.