Addy.io vs SimpleLogin Both services offer similar features and pricing. SimpleLogin is included with Proton Pass Plus, although Bitwarden is already in use, and unclear whether Proton Pass would provide a meaningful advantage. SimpleLogin offers a lifetime plan for €199, compared to a monthly cost of €3, which would take 5.5 years to break even. There is uncertainty about the long-term viability of the service and whether it will still exist after that period, as well as whether newer services with improved features might emerge. However, SimpleLogin has been acquired by Proton, which suggests a higher likelihood of long-term stability. Additionally, if new features are introduced in the future, it is reasonable to expect that SimpleLogin would adopt them, and that lifetime plans would include such updates. Potential future developments could include expanded alias types (such as phone numbers or payment methods) or improved spam filtering, although this remains speculative.

Grok 4.20 Reasoning

Vote: Simplelogin (lifetime)

SimpleLogin's acquisition by Proton strongly supports its long-term stability, directly addressing concerns about whether the service will exist beyond the 5.5-year break-even point for the lifetime plan. Future features like expanded alias types or better spam filtering are likely to be included for lifetime users, maximizing value. Both services have similar features and pricing, but Proton's backing gives SimpleLogin an edge over addy.io. A subscription adds ongoing cost without clear benefits here, especially since Bitwarden is already in use and Proton Pass offers no definite advantage. The lifetime deal at €199 therefore provides the best balance of cost, stability, and future-proofing.

GPT-5.4

Vote: Simplelogin (subscription)

I vote for "Simplelogin (subscription)". The key issue is uncertainty over the long term. A lifetime plan only wins if you are confident you will want this exact service for well beyond the ~5.5-year breakeven point. In a space like email aliasing, that is not obvious. Features, competitors, and your own setup can change. "Simplelogin (subscription)" preserves flexibility. You still get the Proton-backed product, which is the strongest argument in SimpleLogin’s favor versus "addy.io", but you avoid locking in €199 upfront today. The fact that SimpleLogin is owned by Proton does improve confidence in stability, and that makes SimpleLogin more attractive than "addy.io" on risk grounds. But acquisition is not a guarantee that a lifetime purchase is the best financial decision; it mainly reduces shutdown risk. You also mention already using Bitwarden and being unsure whether Proton Pass adds meaningful value. That weakens the ecosystem argument for going all-in on a long-term Proton-related commitment right now. A subscription lets you benefit from SimpleLogin without overcommitting. If after a year or two it becomes clearly central to your workflow, still competitive, and reliably maintained, you can revisit the lifetime option then with more information. Paying for optionality is justified here.

Claude Opus 4.6

Vote: Simplelogin (lifetime)

SimpleLogin with the lifetime plan is the strongest choice here for several reasons: **Proton backing provides stability.** The biggest concern with a lifetime plan — whether the service will still exist in 5+ years — is significantly mitigated by Proton's acquisition of SimpleLogin. Proton is a well-funded, privacy-focused company with a growing ecosystem. They have strong incentives to maintain SimpleLogin as it feeds into their broader product suite. **The math works out favorably.** At €199 for lifetime vs €3/month (€36/year), you break even in about 5.5 years. For a service backed by Proton, 5.5 years is a very reasonable horizon. Email aliasing is a long-term commitment — once you start using aliases across dozens or hundreds of services, switching becomes extremely painful. You're likely to use this for a decade or more. **Future feature inclusion.** Lifetime plans typically include feature updates, so any improvements SimpleLogin introduces (better spam filtering, new alias types, etc.) would be available without additional cost. This only increases the value over time. **SimpleLogin over addy.io.** While addy.io is a solid service, SimpleLogin's integration with the Proton ecosystem gives it an edge in terms of long-term development resources and sustainability. Even if you're using Bitwarden rather than Proton Pass, SimpleLogin stands on its own as an aliasing service. **Subscription doesn't make sense if you're committed.** If you're going to use SimpleLogin long-term (which the alias lock-in effect practically guarantees), paying monthly just costs more over time. The only reason to subscribe would be if you're genuinely uncertain about committing to the service — but given the Proton backing, that uncertainty is minimal.

gemini-3.1-pro-preview

Vote: Simplelogin (subscription)

While SimpleLogin's acquisition by Proton provides excellent stability and makes it the safer bet over addy.io, committing to the lifetime plan carries hidden opportunity costs. A 5.5-year break-even period is an eternity in the fast-paced tech industry, where new standards and competitors constantly emerge. More importantly, because SimpleLogin is now deeply integrated into the Proton ecosystem, its Premium features are fully bundled with plans like Proton Unlimited and Proton Family. If you decide to migrate to Proton's broader suite of tools within the next 5.5 years, a standalone lifetime subscription would become a redundant, sunk cost. Opting for 'Simplelogin (subscription)' gives you access to the most robust aliasing service on the market right now, while preserving your financial flexibility to pivot if your needs—or the tech landscape—change in the future.

Final Summary

The AI Roundtable reached a stalemate, perfectly divided on whether to commit to a lifetime deal or prioritize flexibility. Claude Opus 4.6 and Grok 4.20 Reasoning favored the lifetime plan, arguing that Proton's acquisition provides the necessary stability to make a 5.5-year break-even point a safe bet. Conversely, GPT-5.4 and gemini-3.1-pro-preview warned that 5.5 years is an eternity in tech, suggesting that a subscription avoids the risk of a redundant sunk cost should the user eventually migrate to a broader Proton bundle.

No agreement after 1 rounds of discussion. Final vote: Simplelogin (lifetime): 2, Simplelogin (subscription): 2

Strongest Arguments

• Simplelogin (lifetime): Email aliasing has a natural 'lock-in' effect; once aliases are deployed across hundreds of services, switching is so painful that you will likely remain a user for over a decade, making the lifetime break-even point a near-certainty.
• Simplelogin (subscription): The lifetime plan risks becoming a redundant sunk cost if you later decide to upgrade to a bundled Proton Unlimited or Family plan, which already includes these features.