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Developer tools

Pinnacle

Pinnacle is an API for RCS, the new standard for SMS for app-like text messages.

sources
1
Evidence entries preserved.
affiliations
1
Y Combinator
competitors
5
Mapped from High Signal graph features.
status
generated
D1 lookup
last updated
2026-07-15
16:41 UTC
source evidence
Why this company exists here

Y Combinator

yc-company-directory #2767

Pinnacle is an API for RCS, the new standard for SMS for app-like text messages.

source
generated read
High Signal interpretation

Pinnacle is classified as Developer tools from source descriptions and fund-directory context. Similar companies below are ranked from offline product facets and meaningful description overlap; category and source affiliation can only strengthen an existing product match. For lookup-created rows, the profile starts as pending enrichment until deeper source collection runs.

offline extraction
Product facets
RCSSMSPinnacleAPIapp-like text messages
mapping method
Similarity graph

Local clusters rerank extracted product concepts and description terms. The generated graph remains the fallback for sparse descriptions: offline reciprocal product-similarity graph: extracted concepts + description terms + bounded category/affiliation boosts. Minimum fallback score: 0; max competitors: 6.

discovery cluster

Companies similar to Pinnacle

Developer tools · 5 peers

A deterministic local cluster built from offline product facets and meaningful description terms. Category and selected-institution affiliation provide bounded tie-breaks. Open any peer to continue exploring its cluster.

Courier

match 63

Courier is the fastest way for developers to build notifications for their app. Our APIs take the tedium out of integrating various notification channels, while our visual designer lets anyone design a message template and deliver their notifications to the best channel for each user with a single API call. Email, Push, In-App, Slack, SMS, you name it. Think "Stripe, for notifications."

shared extracted concepts: sms; shared product terms: app, message, api, sms; shared product theme: developer infrastructure; same category: Developer tools; shared affiliation: Y Combinator

ListRunner

match 37

Listrunner is a service made to share patient information in a highly secure manner between authorized members of a clinical team– physicians, residents, interns, and medical students. Listrunner helps clinicians protect patient information by replacing manual processes, such as printed patient lists, which are untraceable and easily lost. Listrunner offers a secure alternative to unsecure practices, such as the use of SMS messages and camera phones to collect and share patient information betwe

shared extracted concept terms: sms, message; shared product terms: sms, message; shared affiliation: Y Combinator

Audobox

match 27

Audobox is a developer and user friendly tool for in-app feedback.

shared extracted concept terms: app; shared product terms: app; shared product theme: developer infrastructure; same category: Developer tools; shared affiliation: Y Combinator

Riley

match 21

MailChimp for SMS

shared extracted concepts: sms; shared product terms: sms; shared affiliation: Y Combinator

PiCloud

match 8

Developer tools company.

same category: Developer tools; shared terms: developer, tools