SaneBox vs Superhuman
SaneBox vs Superhuman, compared side by side on 17 data points: what each one does, how big it is, what it has raised, the tech running each site, and what users report. We score both out of 100 on traction, team and visibility: SaneBox is on 18/100 and Superhuman on 71/100.
Where each one leads
SaneBox
Leads on none of the measures we hold for both companies.
Superhuman
- our overall score: 71/100 against 18/100
- agent readiness: 39/100 against 30/100
- headcount: 189 against 13
- LinkedIn following: 53,487 against 1,934
At a glance
| Measure | SaneBox | Superhuman |
|---|---|---|
| What it is | AI-powered email management tool that filters and prioritizes your inbox. | An AI-native email app designed to save users time and increase productivity through faster collaboration and an efficient inbox experience. |
| Category | Email Management, Productivity Software, AI Tools, Personal Productivity | Productivity, Email Client, AI, Enterprise Software |
| Sells toBusiness model | B2C | B2B |
| Offering | Software | Software |
| Founded | 2011 | 2014 |
| Headquarters | San Francisco, United States | San Francisco, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | SaneBox | Superhuman |
|---|---|---|
| Employees | 13 | 189 |
| Total funding | Not published | $75.0M |
| Latest round | Not published | Series C |
| Valuation | Not published | $825M |
| LinkedIn followers | 1,934 | 53,487 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | SaneBox | Superhuman |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 18/100 | 71/100 |
| Traction | 11/100 | 59/100 |
| Team | Not published | 80/100 |
| Search visibility | 35/100 | 68/100 |
| Quality | Not published | 78/100 |
| Agent readinessHow well an AI agent can read and act on the site | F (30/100) | F (39/100) |
| Domain ratingLink authority, 0-100 | 74/100 | 79/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | SaneBox | Superhuman |
|---|---|---|
| CDN | Cloudflare | Cloudflare |
| CMS | Ghost | Not detected |
| Frameworks | Jquery | Next.js |
| Analytics | Google Analytics 4, Google Tag Manager | Not detected |
Product and pricing
| Measure | SaneBox | Superhuman |
|---|---|---|
| Key features | Not published | Superhuman AI, Split Inbox, Follow-up Reminders, Snippets, Read Statuses, Autocorrect |
What users say
| Measure | SaneBox | Superhuman |
|---|---|---|
| Reddit sentimentThreads we track | 2 positive, 1 negative across 6 threads | 0 positive, 3 negative across 5 threads |
“After six months of using SaneBox in my business inbox, I’ve developed a clear opinion: it doesn’t fix every email problem, but it does reclaim time and reduce distraction in a way manual filters rarely do. If your inbox constantly pulls yo”r/aitoolcomparisons
“Remember that “invite-only” email app people waited months to try and then paid $30 a month for just to blast through Gmail a bit faster? Superhuman. Grammarly announced it’s buying them.”r/startups
SaneBox vs Superhuman: common questions
Which is better, SaneBox or Superhuman?
On our 0-100 score Superhuman rates higher (71/100 against 18/100). The score weights traction, team, visibility and profile completeness, so it reflects company strength rather than which product suits you. We compare the two on 17 data points above: read the rows that match what you are buying for.
How do SaneBox and Superhuman compare on the numbers?
Superhuman leads on our overall score (71/100 against 18/100), agent readiness (39/100 against 30/100), headcount (189 against 13), LinkedIn following (53,487 against 1,934).
What do real users say about SaneBox and Superhuman?
SaneBox: 2 positive and 1 negative mentions across 6 Reddit threads we track, mostly in r/aitoolcomparisons. Superhuman: 0 positive and 3 negative mentions across 5 Reddit threads we track, mostly in r/startups.
Read the full SaneBox review and pricing or the Superhuman review and pricing. You can also browse other SaneBox alternatives we track.

