# Simple AI

Aiolum story: https://aiolum.com/story/simple-ai/ · added 2026-11-06 · updated 2026-11-06

**In short.** Simple AI (AI voice agents that answer and make sales calls for consumer brands, United States): More than 1 million calls handled, November 2026. Evidence grade E: no revenue figure was checked. Team: 2 co-founders at the start in 2024 (Y Combinator Summer 2024 batch); 11 people on the Y Combinator company page read in November 2026, after a US$14M seed round announced in February 2026. Launched August 2024; still running.

AI voice agents that answer and make sales calls for consumer brands · United States · AI-native · started small, grew after funding · still running · group: Sales and lead follow-up

- Outcome: More than 1 million calls handled, November 2026 (evidence grade of the headline number: E; no revenue figure)
- Launch: August 2024; months from launch to the outcome: 27
- Team: 2 co-founders at the start in 2024 (Y Combinator Summer 2024 batch); 11 people on the Y Combinator company page read in November 2026, after a US$14M seed round announced in February 2026
- Outside funding: US$14M seed round led by First Harmonic, announced by the company on 10 February 2026; Y Combinator also invested
- Main factor: A pivot from a consumer phone assistant to the business side of the same call
- Meters, 1 to 4: evidence strength 1, copyable pattern 1, capital needed 3
- Tags: AI-native, Small team, Funded, Running, B2B, Sales software

Links:

- Visit usesimple.ai: https://www.usesimple.ai/

**The product.** AI agents that take a company's inbound sales and service phone calls, and also work by web chat, text message and email. The agent learns the company's product catalogue and prices from its website and product list, takes orders, suggests extra products (upsells), books appointments, qualifies leads and hands a call to a person with a summary when needed. It connects to contact-center phone platforms such as Genesys, NICE CXone, Five9 and Amazon Connect, and to CRMs. Prices are not published; buyers book a demo.

**Why it worked.** The founders first built a consumer app that waited on hold and called businesses for people. The company says businesses kept asking for the other side of that call, so it moved to agents that answer the phone for companies, starting with consumer brands whose call volume jumps in peak seasons.

Evidence grades: A = disclosed by a public company, a filing or a payment processor, or verified by one; B = two or more independent reports agree, or a journalist confirmed it; C = a founder claim that no one else verified; D = reported, not verified: one founder claim or a third-party estimate with no second source; E = no revenue figure found, so the headline is a non-money fact and the other facts carry their own grades; calc = computed on this page from graded facts.

## Summary

Simple AI sells voice agents: programs that hold a phone conversation on their own, using speech recognition, a large language model and speech synthesis. Its agents answer and make sales calls for consumer brands. A company's contact center (the team and phone system that handle customer calls) connects the agent to its phone lines, and the agent takes orders, suggests extra products and passes harder calls to people. The company's About page says the agents have handled more than 1 million calls.

Catheryn Li and Zach Kamran met at Y Combinator, where they built its software for founders, and went through its Summer 2024 batch themselves. Their first product, launched in August and December 2024, was a consumer iPhone app that made calls for its users; their launch post says it was tested with 1,000 beta users. They then moved to agents for businesses. The company's case study says Omaha Steaks put its agent on all of its inbound sales traffic, and in February 2026 the company announced a US$14 million seed round.

No revenue figure was found, so this story has evidence grade E. The call count, the customer results and the funding are the company's own statements on its website.

## Pricing

Simple AI prices on 6 November 2026: none published (grade C)

| Plan | Per month, billed yearly (US$) | Per month, billed monthly (US$) | Limit |
|---|---|---|---|
| Business plan | custom | custom | quote after a demo; no prices on the site |

The Pricing link in the site footer opens the demo request form, and the address /pricing returns a page-not-found error. Every buyer books a demo and receives a quote. The company's comparison page with ElevenLabs says 'Simple charges a platform fee plus per-minute usage', without amounts. The consumer app of 2024 was joined through an invite link; its prices, if any, were not found.

## How much revenue does Simple AI make? The numbers, graded

A two-founder Y Combinator company that changed from a consumer app to sales agents for contact centers, raised a seed round and grew to 11 people, with no revenue figure published

| Fact | Value | Grade | Note | Sources |
|---|---|---|---|---|
| Calls handled | more than 1 million | C | About page, read 6 November 2026: '+1M Of calls handled.' Undated on the page; the date here is the reading date. | [1] |
| Founders | Catheryn Li (CEO) and Zach Kamran (CTO) | C | About page and Y Combinator launch posts. Both worked on Y Combinator's own software (Startup School, Bookface, co-founder matching) before the batch. | [1, 5] |
| Founded | 2024, San Francisco; Y Combinator Summer 2024 | C | About page ('2024 Founded in San Francisco') and the Y Combinator company page (batch 'Summer 2024', year founded 2024). | [1, 3] |
| First product | Consumer phone assistant app for iPhone | C | Y Combinator launch of 13 August 2024 ('a better Siri') and of 5 December 2024 ('available on the App Store'): the app waits on hold, navigates phone menus and calls in 33 countries in 15 languages. | [5, 4] |
| Beta users of the consumer app | 1,000 | C | Founders' launch post, 5 December 2024: 'We tested a beta version of the app extensively with our initial set of 1000 users.' | [4] |
| Team | 2 founders in 2024; 11 people in November 2026 | C | Y Combinator company page, team size 11, read 6 November 2026. The careers page lists seven open roles in San Francisco. | [3, 10] |
| Funding | US$14 million seed round | C | Company blog, 10 February 2026: led by First Harmonic, with Y Combinator, Massive Tech Ventures, Samsung Next, True Ventures, Conviction Capital, HNVR and 70 angel investors. The company's own announcement. | [6] |
| Named customer | Omaha Steaks | C | Case study of 7 July 2026 by the CEO: proof of concept signed 2 June, first live calls 10 June, all traffic in September. Customer results, not revenue of Simple AI: 60% of calls handled without a person, abandonment down from 16% to 3%, upsell rate 28% to 30%. | [7] |
| Prices | not published | C | The footer link 'Pricing' opens the demo form. | [2] |
| Own model | Tango, an end-of-turn and interruption model | C | Company blog, 29 September 2026: the company trained its own model to decide from the audio when a caller has finished speaking. | [8] |
| Time from first launch to the call count | 27 months | calc | Calculated: August 2024 to November 2026. | [5, 1] |

How to read this table: a grade C value is the company's own statement on its website or in its Y Combinator posts. A "calc" value was computed on this page. No revenue figure was found.

## When did Simple AI launch, and how did it grow? Timeline

From a consumer phone assistant in a Y Combinator batch in 2024 to sales agents in contact centers in 2026. Each entry carries its grade.

- **2024** (grade C [1, 3]): Catheryn Li and Zach Kamran leave their software jobs at Y Combinator and enter its Summer 2024 batch as founders.
- **13 August 2024** (grade C [5]): Y Combinator launch post 'Simple AI - a better Siri': a consumer assistant for iPhone, with a waitlist.
- **5 December 2024** (grade C [4]): The Simple AI Phone Assistant opens on the App Store after a beta with 1,000 users. It makes calls for its users, waits on hold and navigates phone menus.
- **June 2025** (grade C [7]): Omaha Steaks signs a proof of concept on 2 June; the first live calls run on 10 June. The case study, published in July 2026, reports the results 'after one year'.
- **10 February 2026** (grade C [6]): The company announces a US$14 million seed round led by First Harmonic and says its agents sell 'everything from steak to self storage to home insurance'.
- **29 September 2026** (grade C [8]): The company releases Tango, its own model for end-of-turn and interruption detection on phone audio.
- **November 2026** (grade C [1, 3]): The About page states more than 1 million calls handled; the Y Combinator page lists 11 people.

## Why did Simple AI work?

### Pivot to the side that pays

The consumer app called businesses for people. The About page says businesses kept asking for the other side of that call: the agent that picks up. Businesses pay for the agent: the company's comparison page with ElevenLabs says 'Simple charges a platform fee plus per-minute usage.'

### Sell revenue, not fewer calls

Most support bots are sold on deflection, the share of calls that never reach a person. Simple AI sells its agent on orders and upsells. The Omaha Steaks case study puts its main point as framing the project 'around revenue rather than deflection'.

### Start with one narrow line, then expand

At Omaha Steaks the first use case was the phone numbers printed on mail catalogues, where callers order one known package. The team spent two weeks on site, went live in eight days and then added about 100 products and all call traffic over the following months.

## How it was built

These details come from the company's own pages. They are grade C.

- The About page says the founders built 'the entire voice stack from the ground up rather than assembling someone else's parts', to control latency and tone.
- Tango, released in September 2026, reads end-of-turn and interruptions directly from the audio instead of waiting for a transcript; the company reports a median decision 300 milliseconds earlier than a conventional voice-activity detector.
- The agent reads a customer's website and product list to learn its catalogue, prices and rules, and pulls them live.
- Integrations listed on the site include Genesys, NICE CXone, Five9, Amazon Connect, Twilio Flex, Salesforce, Zendesk, Shopify and Snowflake.
- Deployment is hands-on: the case study describes dedicated agent engineers on the account and meetings two to three times a week a year into the project.

Sources: [1, 8, 2, 7, 12]

## Who tried this before Simple AI, and why did they fail?

Three companies in our database of failed startups tried to make talking to computers, or buying through a conversation, work before large language models. The values below are from that database and are not independently verified.

The failed startups come from our database of dead startups, retold here in our own words; Its entries are AI-assisted summaries of public sources, so they carry no evidence grade.

### Tellme (1999 to 2011; funding US$238M; cause: Competition)

- Promise: Information and transactions over the phone by voice command, with speech recognition for customer calls.
- Why it died: Phone voice menus lost ground to apps and smartphone assistants.
- Record: 

### VocalIQ (2011 to 2017; funding US$2M; cause: Competition)

- Promise: A voice interface that learned from context, so that talking to a computer felt like a conversation.
- Why it died: It could not compete with the large technology companies' assistants and ended inside Apple.
- Record: 

### Vanti (2019 to 2024; funding US$18M; cause: No Market Need)

- Promise: AI chat bots that would give each shopper a personal buying conversation for brands.
- Why it died: No product-market fit in a crowded conversational AI market; high customer acquisition cost and hard integrations.
- Record: 

## What changed

Tellme and VocalIQ worked with speech recognition and dialog systems that needed every path written by hand, the same limit that the case study says Omaha Steaks hit with its own in-house virtual agent: 20% of calls handled on one use case after six months. Large language models remove most of that hand mapping.

Vanti sold conversational shopping as a new channel. Simple AI attaches to the phone line that consumer brands already staff and measures itself against their human sales reps, so the buyer compares it with a known cost.

## Can one person copy Simple AI now?

**Verdict: Not by one person today.**

The company built its own voice stack and its own audio model, sells to large contact centers with long integrations, and raised a seed round to do it. What a small team can copy is the approach: begin with one narrow call type that ends in a sale, and grow from there.

1. Pick one call type that ends in money, such as orders from a printed catalogue's phone number.
2. Measure the agent against human reps on conversion and upsell, not only on calls avoided.
3. Deploy next to the customer's existing phone platform instead of replacing it.
4. Expand to the next call type only after the first one meets an agreed target.

**What is still open.** Smaller businesses with seasonal phone sales (gift food, home services, storage) that cannot run months-long contact-center projects.

## What could go wrong for Simple AI?

- **What is not verified.** No revenue figure was found. The company's site, its Y Combinator pages and its blog give no revenue, number of paying customers or price. The '+1M' calls figure, the 30% conversion claim and the Omaha Steaks results are the company's own statements; the Omaha Steaks numbers are the customer's outcomes, not Simple AI's revenue. A reader could look for a funding-round article by a journalist, a customer statement outside the company's blog, or a payment-processor profile.
- **AI calls that may not say they are AI.** The home page says: 'Phone calls so natural, customers won't know it's AI.' The pages read do not say whether the agent tells callers that it is an AI; the debt-collection page says the customer's own team defines 'disclosures, consent and opt-out handling'. The agents also place outbound calls to consumers: the seed announcement says they 'handle inbound and outbound consumer calls'. Outbound calls are subject to consent and do-not-call rules, and the company's Terms of Use forbid using the service to contact anyone who has not given 'express written consent' or whose number is on the National Do-Not-Call Registry. Business buyers sign a separate agreement with the company, which is not public.
- **Debt collection among the use cases.** One use-case page sells the agent for overdue balances: it verifies the right party, explains balances, takes payment actions and passes disputes and hardship cases to a person under 'your approved outreach policy'. Collections calls are a regulated activity; the page leaves compliance to the customer's own policy.
- **Logo wall and deployment work.** The home page shows logos (DoorDash, SpaceX, Empire Today, Speedway Motors and others) under 'Trusted by teams at'; only Omaha Steaks has a case study among the pages read. The case study describes engineers on site for two weeks and meetings several times a week, so each sale carries a large amount of service work around the software. The home page also says 'We maintain SOC 2 Type II certification and HIPAA compliance'; the pages read name no auditor and link no report.
- **Competition and model providers.** On this site, Simple AI is close to Setter AI, ConnectLoop and DeltaGen AI, which sell AI sales agents to smaller buyers by chat or for live calls; the company's own comparison pages name larger voice-agent firms such as Sierra, Decagon, PolyAI, Bland and Retell. The pages read do not name the language model or speech provider behind the agent; the company says it built its voice stack itself and trained its own Tango model, which lowers but does not show the end of dependence on outside model providers.

## Sources

1. Simple AI: About Us, read 6 November 2026 — https://www.usesimple.ai/about-us (grade C). Read in full. Source for the founders, the founding year, the pivot, the call count and the funding total.
2. Simple AI home page, read 6 November 2026 — https://www.usesimple.ai/ (grade C). Read in full. Source for the product, the channels, the logo wall, the 'won't know it's AI' line and the footer Pricing link that opens the demo form.
3. Y Combinator company page: Simple AI — https://www.ycombinator.com/companies/simple-ai (grade C). Read the page data: batch Summer 2024, year founded 2024, team size 11, one-liner 'AI voice that sells'.
4. Y Combinator launch, 5 December 2024: Simple AI - AI phone assistant for consumers — https://www.ycombinator.com/launches/MOM-simple-ai-ai-phone-assistant-for-consumers (grade C). Read in full. Founders' post. Source for the App Store launch and the 1,000 beta users.
5. Y Combinator launch, 13 August 2024: Simple AI - a better Siri — https://www.ycombinator.com/launches/Lal-simple-ai-a-better-siri (grade C). Read in full. Founders' first launch post and their background at Y Combinator.
6. Simple AI blog, 10 February 2026: Simple AI Raises $14M to Transform Sales with Voice AI — https://www.usesimple.ai/blog/seed (grade C). Read in full. The company's funding announcement.
7. Simple AI blog, 7 July 2026: How Omaha Steaks turned its inbound line into a sales engine — https://www.usesimple.ai/blog/omaha-steaks-case-study (grade C). Read in full. A case study written by the CEO; source for the deployment dates and the customer's results.
8. Simple AI blog, 29 September 2026: Introducing Tango: Simple AI's Conversational Awareness Model — https://www.usesimple.ai/blog/tango-voice-ai-end-of-turn-detection (grade C). Read in full. Source for the company's own audio model.
9. Simple AI: AI Voice Agents for Debt Collection, read 6 November 2026 — https://www.usesimple.ai/use-cases/debt-collection (grade C). Read in full. Source for the collections use case and its compliance wording.
10. Simple AI: Careers, read 6 November 2026 — https://www.usesimple.ai/careers (grade C). Read in full. Seven open roles in San Francisco, including sales roles.
11. Database of failed startups, local export — /method/#dead (grade C). Local export. AI-written summaries, not independently verified. Source for the failed predecessors.
12. Simple AI: Integrations, read 8 November 2026 — https://www.usesimple.ai/integrations (grade C). Read the integration list: Amazon Connect, Five9, Genesys, NiCE CXone, Salesforce, Shopify, Snowflake, Twilio Flex, Zendesk and others.
13. Simple AI: Terms of Use, last updated 2 July 2026 — https://www.usesimple.ai/terms (grade C). Read the sections on prohibited uses (consent, Do-Not-Call Registry, voicemail identity) and on the separate agreement (MSA) for business buyers.
14. Simple AI: ElevenLabs vs. Simple, read 8 November 2026 — https://www.usesimple.ai/compare/elevenlabs-vs-simple (grade C). Read the section 'How pricing behaves': platform fee plus per-minute usage.

Contact: aiolum@livyden.com. Run Simple AI? Send corrections or a verified figure to aiolum@livyden.com (subject: Correction: Simple AI).