funding_articleConfidence: medium
SideKit - CB Insights
$500K convertible note; investor listed as Y Combinator; W26-era mobile app backend toolkit.
Affected score: noObserved: May 20, 2026Amount: $500K
S
SideKit
Pre-SeedFunding signalMarket data is refreshed once per day from public sources. Information may be incomplete or outdated — verify independently before making decisions. This is not investment advice.
Investor read
Evidence-bound summary — expand sections for movement, risks, and signals.
Memo snapshot · May 20, 2026, 6:15 PM
Worth a meetingEvidence-bound analyst verdict
- •Funding: Raised $500K across 1 funding round. Latest: $500K Convertible Note (Jan 2026). Investors: Y Combinator.
- •Named backers in indexed sources: Y Combinator.
- •Product/news: 5 product/news‑styled row(s); headline risk without filings
What would change this read
- →Open roles appearing would signal burn capacity and growth intent.
DealFlow OS uses public web data and automated enrichment. Research may be incomplete, outdated, or incorrect. Verify important information before making investment or outreach decisions.
TL;DR
Seed (YC)SideKit - Your App's Backend in One Package Analytics, version gating, feature flags for iOS.
Funding
Raised $500K across 1 funding round. Latest: $500K Convertible Note (Jan 2026). Investors: Y Combinator. (High).
Quick read
- •SideKit - Your App's Backend in One Package Analytics, version gating, feature flags for iOS.
- •Reported angle: Why Do We Exist?
Key signals
Funding
Raised $500K across 1 funding round. Latest: $500K Convertible Note (Jan 2026). Investors: Y Combinator. (High).
Product / news
5 product/news‑styled row(s); headline risk without filings (High).
Evidence summary
Verified facts
- •SideKit - Your App's Backend in One Package Analytics, version gating, feature flags for iOS.
- •Reported angle: Why Do We Exist?
Recent movers
- •May 11, 2026 · Blog / news — Why Do We Exist?
- •May 11, 2026 · Blog / news — Implementing Force Update in React Native/SwiftUI for your apps
- •May 11, 2026 · Blog / news — Collecting User Feedback in Your Mobile App
+3 more in Recent movement below
- •May 11, 2026 · Blog / news — Why Do We Exist?
- •May 11, 2026 · Blog / news — Implementing Force Update in React Native/SwiftUI for your apps
- •May 11, 2026 · Blog / news — Collecting User Feedback in Your Mobile App
- •May 11, 2026 · Blog / news — App Metrics That Matter for Solo Developers
- •May 11, 2026 · Blog / news — SideKit Blog - Analytics, Versions, Feature Flags
- •May 20, 2026 · cbinsights.com — SideKit - CB Insights
- •Y Combinator
Suggested next steps
- ▸Open a founder conversation this month; validate traction claims against the indexed evidence.
- ▸Add to the active watchlist so new signals trigger alerts.
Funding & hiring signals
Open roles (indexed)
No open roles indexed yet.
Public index
163Activity 98/100Strong public activity signal
7D+46 (+39.3%)
30D+46 (+39.3%)
Needs Review
The index price and activity score are algorithmic estimates based on observed public company-level signals. They may be incomplete, stale, or inaccurate and are not investment, legal, tax, or business advice.
Source health
- githubokLast checked Mon, Jun 29, 12:40 PM
- public_page:homeokLast checked Mon, Jun 29, 12:39 PM
- public_page:blogokLast checked Mon, Jun 29, 12:39 PM
- public_market_enrichmentokLast checked Mon, May 11, 04:45 AM
- public_page:_blog_why-does-sidekit-existokLast checked Mon, May 11, 04:45 AM
- public_page:_blog_force-app-update-old-versionsokLast checked Mon, May 11, 04:45 AM
- public_page:_blog_collecting-user-feedback-mobile-appsokLast checked Mon, May 11, 04:45 AM
- public_page:_blog_app-metrics-that-matter-solo-developersokLast checked Mon, May 11, 04:45 AM
- public_page:_blogokLast checked Mon, May 11, 04:45 AM
- public_page:_okLast checked Mon, May 11, 04:45 AM
Public source summary
- Total evidence rows
- 17
- Latest evidence
- Thu, Jul 2, 04:07 PM
Source types found
blogcompany_sitefunding_articlegithubofficial_siteotherpress
Strongest / recent news-style rows
- SideKit - CB Insights
Wed, May 20, 06:15 PM · confidence 88%high quality
- Siderian
wikipedia · Mon, Jun 29, 12:39 PM · confidence 50%low quality
- Side to Side
wikipedia · Mon, Jun 29, 12:39 PM · confidence 50%low quality
Public signal timeline
Newest first · 17 event(s)
1
Thu, Jul 2, 04:07 PM · blog · 90% · publichigh qualitySideKit Blog - Analytics, Versions, Feature Flags
Source ↗Source: Blog
Random musings about life, analytics and mobile apps
2
Mon, Jun 29, 12:39 PM · official_site · 75% · publichigh qualitySideKit - Your App's Backend in One Package
Source ↗Source: official_site
SideKit - Your App's Backend in One Package Side Kit Features FAQ Blog Docs Try It everything that comes after claude, make me a million dollar app , make no mistakes. Block bad updates, roll out features safely, change config remotely, and see what'…
3
Mon, Jun 29, 12:39 PM · official_site · 75% · publichigh qualitySideKit Blog - Analytics, Versions, Feature Flags
Source ↗Source: official_site
Blog | SideKit - Mobile App Development Insights | SideKit Side Kit Features FAQ Blog Docs Try It Blog Random musings about life, analytics and mobile apps. App Metrics That Matter for Solo Developers February 24, 2026 Mixpanel/Amplitude dashboards need a cou…
4
Wed, May 20, 06:15 PM · company_site · 85% · verified_publichigh qualitySideKit - Your App's Backend in One Package
Source ↗Analytics, version gating, feature flags for iOS.
5
Wed, May 20, 06:15 PM · funding_article · 88% · verified_publichigh qualitySideKit - CB Insights
Source ↗$500K convertible note; investor listed as Y Combinator; W26-era mobile app backend toolkit.
6
Mon, May 11, 04:45 AM · blog · 90% · publichigh qualityWhy Do We Exist?
Source ↗Source: Blog / news
Why does SideKit exist and what makes us believe that there is a market for this product?
7
Mon, May 11, 04:45 AM · blog · 90% · publichigh qualityImplementing Force Update in React Native/SwiftUI for your apps
Source ↗Source: Blog / news
Either you shipped a broken update and need users off it immediately, or you're proactively realizing you have no way to control which versions of your app are in the wild. Here's how to fix that.
8
Mon, May 11, 04:45 AM · blog · 90% · publichigh qualityCollecting User Feedback in Your Mobile App
Source ↗Source: Blog / news
Giving informative feedback should be frictionless yet informative, letting you move fast and iterate for your users.
9
Mon, May 11, 04:45 AM · blog · 90% · publichigh qualityApp Metrics That Matter for Solo Developers
Source ↗Source: Blog / news
Mixpanel/Amplitude dashboards need a couple hours and high-dose adderall to navigate. As a solo developer, you don't need a data warehouse, you need answers to these 3 questions.
10
Mon, Jun 29, 12:40 PM · github · 55% · publicmedium quality@sidekit/react-native
Source ↗Source: npm_registry
SideKit Expo/React Native SDK for version gating, analytics, and end-user auth
11
Mon, Jun 29, 12:40 PM · github · 55% · publicmedium quality@try-sidekit/shared
Source ↗Source: npm_registry
Shared types for Sidekit
12
Mon, Jun 29, 12:40 PM · github · 55% · publicmedium quality@try-sidekit/engine
Source ↗Source: npm_registry
Agent runtime for Sidekit
14
Mon, Jun 29, 12:40 PM · github · 55% · publicmedium quality@try-sidekit/companion
Source ↗Source: npm_registry
Sidekit Companion — local companion app for Sidekit AI agents. Install the Sidekit Chrome extension to complete setup.
16
17
Wed, May 20, 06:15 PM · press · 85% · verified_publiclow qualityappsidekit/ios-sdk
Source ↗Open-source MIT-licensed iOS SDK.
Official / company site
3 row(s)
The company's own site — the authoritative description of what they sell and to whom. Marketing-controlled, so treat claims as positioning rather than verified traction.
official_site·Mon, Jun 29, 12:39 PM·Confidence 75%high qualitypublic
SideKit - Your App's Backend in One PackageSideKit - Your App's Backend in One Package Side Kit Features FAQ Blog Docs Try It everything that comes after claude, make me a million dollar app , make no mistakes. Block bad updates, roll out features safely, change config remotely, and see what'…
Why it matters: Primary source — the company's own positioning; best read for what they sell and to whom, not for traction claims.
Open source ↗official_site·Mon, Jun 29, 12:39 PM·Confidence 75%high qualitypublic
SideKit Blog - Analytics, Versions, Feature FlagsBlog | SideKit - Mobile App Development Insights | SideKit Side Kit Features FAQ Blog Docs Try It Blog Random musings about life, analytics and mobile apps. App Metrics That Matter for Solo Developers February 24, 2026 Mixpanel/Amplitude dashboards need a cou…
Why it matters: Primary source — the company's own positioning; best read for what they sell and to whom, not for traction claims.
Open source ↗company_site·Wed, May 20, 06:15 PM·Confidence 85%high qualityverified_public
SideKit - Your App's Backend in One PackageAnalytics, version gating, feature flags for iOS.
Why it matters: Primary source — the company's own positioning; best read for what they sell and to whom, not for traction claims.
Open source ↗News
2 row(s)
Third-party press coverage. Independent reporting corroborates company claims; repeated coverage across outlets is a momentum signal.
other·Mon, Jun 29, 12:39 PM·Confidence 50%low qualitypublic
SiderianWhy it matters: Independent coverage — third-party corroboration of company claims; recurring coverage indicates rising visibility.
Open source ↗other·Mon, Jun 29, 12:39 PM·Confidence 50%low qualitypublic
Side to SideWhy it matters: Independent coverage — third-party corroboration of company claims; recurring coverage indicates rising visibility.
Open source ↗Funding / news
1 row(s)
Funding announcements and investor-database records. The strongest public signal of capitalization: round, amount, and syndicate quality when disclosed.
funding_article·Wed, May 20, 06:15 PM·Confidence 88%high qualityverified_public
SideKit - CB Insights$500K convertible note; investor listed as Y Combinator; W26-era mobile app backend toolkit.
Why it matters: Funding signal — Convertible Note per this source; verify against the linked original before relying on it.
Open source ↗GitHub
6 row(s)
Public engineering activity. Sustained commits, releases, and stars indicate real product development and, for dev tools, developer adoption.
github·Mon, Jun 29, 12:40 PM·Confidence 55%medium qualitypublic
@sidekit/react-nativeSideKit Expo/React Native SDK for version gating, analytics, and end-user auth
Why it matters: Engineering signal — public repo activity evidences active development and possible developer adoption.
Open source ↗github·Mon, Jun 29, 12:40 PM·Confidence 55%medium qualitypublic
@try-sidekit/sharedShared types for Sidekit
Why it matters: Engineering signal — public repo activity evidences active development and possible developer adoption.
Open source ↗github·Mon, Jun 29, 12:40 PM·Confidence 55%medium qualitypublic
@try-sidekit/engineAgent runtime for Sidekit
Why it matters: Engineering signal — public repo activity evidences active development and possible developer adoption.
Open source ↗github·Mon, Jun 29, 12:40 PM·Confidence 55%medium qualitypublic
sidekitWhy it matters: Engineering signal — public repo activity evidences active development and possible developer adoption.
Open source ↗github·Mon, Jun 29, 12:40 PM·Confidence 55%medium qualitypublic
@try-sidekit/companionSidekit Companion — local companion app for Sidekit AI agents. Install the Sidekit Chrome extension to complete setup.
Why it matters: Engineering signal — public repo activity evidences active development and possible developer adoption.
Open source ↗press·Wed, May 20, 06:15 PM·Confidence 85%low qualityverified_public
appsidekit/ios-sdkOpen-source MIT-licensed iOS SDK.
Why it matters: Engineering signal — public repo activity evidences active development and possible developer adoption.
Open source ↗Blog
5 row(s)
Company blog and newsletters. Shipping cadence and technical depth of posts hint at product velocity and team quality.
blog·Thu, Jul 2, 04:07 PM·Confidence 90%high qualitypublic
SideKit Blog - Analytics, Versions, Feature FlagsRandom musings about life, analytics and mobile apps
Why it matters: Company publishing — post cadence and depth hint at product velocity.
Open source ↗blog·Mon, May 11, 04:45 AM·Confidence 90%high qualitypublic
Why Do We Exist?Why does SideKit exist and what makes us believe that there is a market for this product?
Why it matters: Company publishing — post cadence and depth hint at product velocity.
Open source ↗blog·Mon, May 11, 04:45 AM·Confidence 90%high qualitypublic
Implementing Force Update in React Native/SwiftUI for your appsEither you shipped a broken update and need users off it immediately, or you're proactively realizing you have no way to control which versions of your app are in the wild. Here's how to fix that.
Why it matters: Company publishing — post cadence and depth hint at product velocity.
Open source ↗blog·Mon, May 11, 04:45 AM·Confidence 90%high qualitypublic
Collecting User Feedback in Your Mobile AppGiving informative feedback should be frictionless yet informative, letting you move fast and iterate for your users.
Why it matters: Company publishing — post cadence and depth hint at product velocity.
Open source ↗blog·Mon, May 11, 04:45 AM·Confidence 90%high qualitypublic
App Metrics That Matter for Solo DevelopersMixpanel/Amplitude dashboards need a couple hours and high-dose adderall to navigate. As a solo developer, you don't need a data warehouse, you need answers to these 3 questions.
Why it matters: Company publishing — post cadence and depth hint at product velocity.
Open source ↗Private workspace
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