Yoav Kallus✓ Add us as a preferred source on Google
🔄 Data last refreshed 6 days ago
🤝
Make a deal with Yoav Kallus
🔒 Paid proposals held safely in escrow — released only when the work's approved.
Followers
67
Account age
3 yrs
💰 Suggested sponsorship rate
$40 – $65 / sponsored post
Estimated from audience size & typical reach — every deal is negotiable and held in SocialDB escrow.
🎁 Free analysisfor Yoav Kallus
📊 Post engagement
Recent posts · likes + reposts
Jan 22latest
2
Avg engagement / post
1–2
Typical post (engagement)
3%
Engagement vs followers
78/100
Very consistent reach
Dec 2022
On Mastodon since
Half of recent posts land between 1 and 2 likes + reposts (median 1) — a dependable floor a sponsored post can count on.
🔥 Top post: There are bodies of constant width in n dimensions that are expo · 3 likes + reposts
📊 Activity & format
Posting cadence
0.06 / week
A lower-frequency account — each post lands with more weight.
Content mix
Mostly text
Recent: 11 text · 1 image · 0 video.
Follower / following
0.2×
Follows 305 back. A more reciprocal / networked account.
Recent posts
View on Mastodon ↗
I was exploring the best sphere packing arrangements in dimensions 19-23, constructed last year using the antipode construction (https://arxiv.org/abs/2505.02394), and I found out that the d=19 packing is actually not rigid. Like the d=9 b…
It occurred to me that you might be right and it’s already been too long/Too late to change the path I’m on habits set in too strong
#musodon #demo #ukulele #harmonica
https://soundcloud.com/ykallus/in-sight-till-light
The shape of the working week burned in your eye superimposed on your life #demo #musodon
https://soundcloud.com/ykallus/little-truths-2
who's got the Bolsonaro "in Philadelphia it's worth 50 bucks" phtoshop? I'm not going on the bird site to find it.
I screwed up/You gave me all the signals they were only mixed/in my mind #musodon #demo https://soundcloud.com/ykallus/wishful-thinking
Time blotted out and the pattern dissolves and out of reach the world appears to move in the rhythm of a single beat
https://soundcloud.com/ykallus/marghanitas-song
It’s not as if there’s not a million other songs you sing along to even though you know they’re wrong. They still mean the world to you #musodon #demo https://soundcloud.com/ykallus/darkshine
Follow the rubber beta. First set on the slab wall after new paint
Best marginal train song?
Who likes a train song? Well, this one can be marginally classified as a train song https://soundcloud.com/ykallus/long-trains
I stole a little melodic theme from Satie, but I reference it in the lyrics, so it's OK https://soundcloud.com/ykallus/nocturne
Follow the rubber beta. First set on the slab wall after new paint
Best marginal train song?
Who likes a train song? Well, this one can be marginally classified as a train song https://soundcloud.com/ykallus/long-trains
I stole a little melodic theme from Satie, but I reference it in the lyrics, so it's OK https://soundcloud.com/ykallus/nocturne
🐘 Community & instance
Home server
mathstodon.xyz
Their home server on the fediverse — the instance a creator picks signals the community they belong to.
✅ Link-verified
Verified link
Proved ownership of a website linked on their profile — Mastodon's green-check verification, a real identity signal rather than a paid badge.
On Mastodon since
Dec 2022
Joined in the Twitter-exodus wave of late 2022 — part of the migration that made Mastodon a real destination.
💡 Facts
🗓️Joined Mastodon in 2022 — 3 years ago.
👁️Averages 2 views per post.
📤Posts about 0.1× per week.
🕵️ Fake follower check
Estimated75/100
Good
Credibility score
92%
Real
Real audience
Low
Fake-follower risk
High
Data confidence
- Est. 92% real, active audience · Low fake-follower risk.
- Engagement (~3.0% of followers engage each post) is around typical for Mastodon.
- Verified account.
- Established account (3+ years old).
Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.
About
Finance quant. Formerly a physicist and a mathematician. I like canoeing, climbing, foraging, fermenting, writing songs, and building trails. 🍄🧗♂️🚣🏕🎸🚴🏼🏔
🔀 Audience overlap
EstimatedEstimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.
Jon Wiley
18%
Nino van der Mark
17%
Hans Hansen 🏳️🌈
15%
Amartya
14%
Matt Sutherlin
14%
AlexsandraSmart
10%
More like this
Find more →
Mastodon
＋
Amartya ✓
@amartya@fosstodon.org
67
Followers
Mastodon
＋
Jon Wiley
@jonwiley@mastodon.nz
67
Followers
Mastodon
＋
AlexsandraSmart
@alexsandrasmart@mastodon.nz
67
Followers
Mastodon
＋
Hans Hansen 🏳️🌈
@hanshansen@sfba.social
67
Followers
Mastodon
＋
Matt Sutherlin
@__debugbreak@mastodon.gamedev.place
67
Followers
Mastodon
＋
Nino van der Mark ✓
@ninovandermark@fosstodon.org
67
Followers
Frequently asked questions
How much does Yoav Kallus charge for a sponsorship?
Yoav Kallus hasn't published fixed prices yet. Send a proposal through SocialDB and agree terms directly — your payment is held in escrow until the work is approved.
How do I contact Yoav Kallus for a brand deal or collaboration?
Send a paid deal or collab request right here on SocialDB — we notify Yoav Kallus, and once they accept, your payment is held safely in escrow and released when the work is approved. You don't need to track down an email.
How many followers does Yoav Kallus have?
Yoav Kallus has 67 followers on Mastodon.
✉ Message Yoav Kallus
Reaching out to influencers is a Pro feature. Upgrade to message any influencer directly — perfect for brands and agencies booking sponsorships.
- ✓ Message any influencer from their listing
- ✓ The influencer gets notified by email
- ✓ Manage every conversation in one inbox
Already Pro? Log in.
🎤 Event / appearance with Yoav Kallus
Booking an event / appearance is a Pro feature. Upgrade to book Yoav Kallus for an in-person or virtual appearance — payment held safely in escrow until the event is done.
- ✓ Book them for events, livestreams, panels & more
- ✓ Yoav Kallus gets notified by email
- ✓ Fee held in escrow, released after the appearance
Already Pro? Log in.
🚀
You're out of free requests this month
Free accounts get 5 per month. Go Pro for unlimited sponsor pitches, collab requests & sponsorship deals — plus featured placement, the Verified badge, free withdrawals and more.
Upgrade to Pro — $9.95/mo →Your free limit resets on the 1st of next month.
Auto-generated from Mastodon's public data — no affiliation with or endorsement by SocialDB. Is this you? Claim it · Remove