Slashy Assistant is an AI assistant that does email for you — drafting, replying, and managing messages on your behalf. Its site gives no pricing details, so cost is unknown: no free tier is listed and no starting price is stated.
If you want an AI email assistant with clearer pricing, a working free tier, or a narrower focus (like Outlook or plain drafting), here are seven alternatives that do the same core job.
| Product | Free tier | Starts at | Best for |
|---|---|---|---|
| Agentys | Yes | $16.99/mo | Clear pricing tiers with a real free plan |
| RoboResponder | Yes (7-day trial) | $50/mo | Automated replies with human fallback |
| Email AI Assistant - PromptAI Tools | Yes | Free | Zero-cost drafting and summarizing |
| Caspy – AI Assistant for Emails | No | Not stated | Longest track record (launched 2017) |
| AI Mail Assistant | No | Not stated | Multi-language email writing and translation |
| Raply.ai | No | Not stated | Fast, general-purpose email writing |
| Codreo AI Mail | No | Not stated | Outlook desktop users specifically |
Agentys — site
Agentys is an AI email assistant that sorts your inbox and drafts replies. It's the closest match to Slashy Assistant in scope, but with pricing spelled out: a free plan forever (one inbox, smart sorting), then a Starter tier at $16.99/month billed annually (or $23.99/month month-to-month) for 500 AI draft replies a month, with a Professional tier above that. It suits anyone who wants to try before paying. Limitation: the free tier is capped at a single inbox.
RoboResponder — site
RoboResponder automates email replies but keeps a human fallback so messages it can't handle get escalated to a person. It offers a free 7-day trial with no credit card required, then paid plans starting at $50/month. This suits teams that want automation with a safety net rather than fully autonomous replies. Limitation: at $50/month it's the priciest stated option here, and only a trial (not an ongoing free tier) is available.
Email AI Assistant - PromptAI Tools — site
This tool drafts, replies to, and summarizes emails, and PromptAI Tools states plainly that it's free with no paid tier mentioned. It suits anyone who wants basic email help without any cost commitment. Limitation: with only 1 launch-day vote and no pricing page beyond "free," it's a much less established product than the others on this list.
Caspy – AI Assistant for Emails — site
Caspy is an AI assistant built specifically for handling email, launched back in 2017 and still around with 45 launch-day votes. It suits users who want a longer-established product in this category. No pricing information is found on the website, so cost is unknown — the same gap Slashy Assistant has, which makes it a lateral move rather than a clearer alternative on price.
AI Mail Assistant — site
AI Mail Assistant generates, translates, summarizes, and improves emails, and picked up 63 launch-day votes — the highest of any alternative here. It suits people who send email in multiple languages or want writing-quality improvements, not just automation. Limitation: no pricing information is stated anywhere on the site, so budgeting for it means contacting them directly.
Raply.ai — site
Raply.ai focuses on writing email faster with AI, positioning itself around speed and global/multilingual use. It suits users who mainly want writing assistance rather than inbox automation or triage. Limitation: like several others here, no pricing is stated on the website, so there's no way to compare cost up front.
Codreo AI Mail — site
Codreo AI Mail is an AI-powered assistant built specifically for Microsoft Outlook, available as a Windows desktop application. It suits Outlook-only users who want the assistant built into their existing client rather than a separate app. Limitation: pricing isn't disclosed anywhere, and it's Windows/Outlook-only, so it won't work for other email clients or operating systems.
How to choose
If you want a free plan to actually test before paying, start with Agentys or PromptAI Tools. If you need automation with human oversight and can afford $50/month, look at RoboResponder. If you're on Outlook specifically, Codreo AI Mail is the only purpose-built option. For everything else, pricing isn't stated, so you'll need to contact the vendor directly before committing.
FAQ
Is Slashy Assistant free? It's not stated as free or paid — the website gives no pricing information at all.
Which alternative has the clearest pricing? Agentys, with a stated free plan and paid tiers starting at $16.99/month.
Which alternative is completely free? Email AI Assistant - PromptAI Tools is stated as free with no paid tier mentioned.