
ToneSwap
ToneSwap puts a Rewrite button right next to Send in Gmail. One click fixes spelling, grammar, and punctuation. Nothing else changes. Or choose exactly what your email needs. Pick a situation. Reply, follow up, say no, apologize, or ask for something. Pick a style. Make it shorter, keep it professional, write a quick reply, or switch to plain English. You see the rewrite before anything changes. Replace your draft, copy it, or try again.

ToneSwap
ToneSwap puts a Rewrite button right next to Send in Gmail. One click fixes spelling, grammar, and punctuation. Nothing else changes. Or choose exactly what your email needs. Pick a situation. Reply, follow up, say no, apologize, or ask for something. Pick a style. Make it shorter, keep it professional, write a quick reply, or switch to plain English. You see the rewrite before anything changes. Replace your draft, copy it, or try again.
Ranked #5834 on TrustMRR
2 active subscriptions
439 followers on 𝕏
Revenue is verified with
Stripe API key.Last updated: Nov 4, 2026, 03:48 AM
An agent that reads your draft, makes a plan and rewrites it in your voice.
Fix any email before you hit Send.
Audience
Email users who want personalized assistance with email drafting.
Pricing
Pro free for 14 days, then $6.58/mo billed yearly.
Funding
Bootstrapped
Domain Rating
toneswap.app
Ahrefs Domain Rating measures backlink profile strength on a 0 to 100 logarithmic scale.
Market
Tech stack
Backend
Screenshot
toneswap.appProduct updates
Discover more startups
Advanced SearchAdvanced GSC MCP
Advanced GSC is a Model Context Protocol (MCP) server that plugs your AI agent straight into your SEO stack. Connect once with keyless OAuth, then query Google Search Console and GA4, run technical SEO crawls, audit backlinks, and pull live SERP intelligence including AI Overviews and People Also Ask, all in natural language. Compare periods, spot cannibalization, inspect indexing, and research keywords. Built for Claude, Codex, and any MCP client. Tiered plans from Starter to Agency.
Revenue (30d)
$4.8k
MRR
$4.9k
Total
$19k
Road to offer
SaaS helping students and young professionals train for consulting case interviews.
Revenue (30d)
$5.2k
MRR
$3.9k
Total
$20k
Private Venture
Revenue (30d)
$3.9k
MRR
$3k
Total
$71k
Multifeed
MultiFeed lets you manage all your social accounts in one place. Write a post once, adjust it for each platform if needed, schedule it, and publish everywhere without posting the same thing over and over.
Revenue (30d)
$3.2k
MRR
$0
Total
$3.4k
GeoSpoof
A VPN changes your IP, but your devices still leak your real location. GeoSpoof finishes the job — from your browser to your iPhone's real GPS.
Revenue (30d)
$9.2k
MRR
$3.1k
Total
$16k
Nerdsip
Use your idle times to get smart. The micro learning app for busy people. Generates courses for ANY topic - tailor made yor you. Including graphics, summary graphics, and a smart engine that knows what you want to see next.
Revenue (30d)
$3.8k
MRR
$2k
Total
$17k