Build your mobile app or SaaS with AI versions of the founders behind Cal AI, ShipFast, Photo AI and more. Upload screenshots or videos for advice, feedback or a roast.
Free forever. No sign-up needed.
Save your next experiment in Workspace · Your data, explained
Better together
Give each AI mentor a different job. Bring their perspectives into one chat, then turn them into a next step.
What are you working on?
Cut it to the smallest useful product.
Challenge the reason someone would pay.
Check demand and competing apps.
Give me distinct verdicts, then one cheap test to run before I build. Say what evidence would change your mind.
Is this idea worth a weekend of my life? Pieter Levels: Cut it to the smallest useful product. Marc Louvion: Challenge the reason someone would pay. Jacob Rodri: Check demand and competing apps. Give me distinct verdicts, then one cheap test to run before I build. Say what evidence would change your mind. My idea, audience, skills and constraints: [add context].
Add your context in chat.
Review the draft before sending.
Validate an idea: Pieter Levels, Marc Louvion, Jacob Rodri selected.
Your brief, your chosen model. Researched AI perspectives, not the actual founders. Build your own team ↗
Apple App Review · Independent AI reviewer
Spot App Store review and developer-account risks in your app, paywall, onboarding, store assets or rejection notice. Get the relevant guideline, what needs evidence and what to change.
Guidelines whenever your App Store app is on the table. When a conversation touches your app, its paywall, onboarding, store listing or marketing claims, every persona gets Apple’s official rules, so recommendations can flag review risks and offer alternatives. Sauce checks the official page for those replies and shows when it was checked.
Marc Lou · ShipFast & DataFast
Bring your landing page or a one-sentence pitch. Work through who needs your product most, what to charge and where to find your first paying customers.
Pieter Levels · Photo AI & Remote OK
Share your feature list and how much time you have. Pick one job the first version should do well, decide what can wait and put it in front of real users.
Zach Yadegari · Cal AI
Bring a creator pitch or a short demo. Choose the moment worth showing, draft the opening hook and decide how you’ll measure installs from the video.
Ilias Ism · SEO expert · GEO / AEO
Ask about technical SEO, content that converts, and visibility in AI answers. Bring page copy, screenshots or analytics for a practical review.
Julia Pintar · UGC & creator growth
Ask anything about UGC, from finding creators and writing scripts to measuring installs and scaling campaigns. Upload your UGC video or pictures to review the hook, script, lighting, camera framing and product moment. Bring results to discuss performance.
Community sessions
Hosted by David Attias. Join the Discord for app roasts and practical feedback on what to improve next.
Dawson Gibbs · UGC agency expert
Bring your creator brief or campaign results to the AI mentor based on EVO Marketing’s founder. Pick who should film your next video, what to show in the first two seconds and how to track the users it brings in.
Alex (@alexxgrowth) · Clipper agency expert · Content Rewards CMO
Recruit a team to make original TikTok slideshows and short videos for your mobile app. Give creators a format they can adapt, review their posts and put more budget behind the ones that bring in paying users.
Mauro Botanes · Symmetry co-founder
Bring your onboarding funnel or a creator campaign. Use Mauro’s AI persona to work out where people drop off, what to ask them and which change to test first.
Matt Epstein · Launch videos
Upload a launch video or product pictures for feedback on the hook, story, demo and call to action. Find out what to keep, what to change and why.
Rob Hallam · X growth & virality
Sharpen your posts, hooks, replies and launch stories. Upload X profile screenshots or a founder video for feedback, and learn how to turn reach into relevant followers and customers.
Meet your paywall expert
Upload paywall pictures or an onboarding screen recording. Get a scorecard, what to keep and changes worth testing—if the evidence calls for them.
Adapty Subscriptions Expert · Pricing, LTV & retention
Compare your pricing, trial funnel and retention with the State of In-App Subscriptions 2026 report. Bring your metrics to explore acquisition payback and decide what to test next.
New to Sauce
Jesse Venticinque
Retention · Product research
New to Sauce
Patrick Stuart-Constant
App acquisitions · Portfolio operations
New to Sauce
Tibo Maker
SEO / GEO · SaaS pricing
New to Sauce
Anada Lakra
Paid validation · User research
New to Sauce
Luke Martin-Fuller
Customer fit · Health products
New to Sauce
Josh Mohrer
AI-assisted coding · Solo founder
New to Sauce
Pieter Levels
Bootstrapping · MVP validation
New to Sauce
Alex Vech
Onboarding · Paid acquisition
New to Sauce
Lino Leighton
Niche selection · MVPs
New to Sauce
Hunter Isaacson
Viral loops · Consumer apps
New to Sauce
Guillem Ros
Community · Organic growth
New to Sauce
Yves Benchimol
Earned media · Partnerships
New to Sauce
Vahe Baghdasaryan
Paywalls · Pricing
The 48-second tour
One pet-app idea. Chat or call an AI mentor, invite the mentors they recommend, and bring your whole cohort into the chat and call.
Scripted examples using researched AI personas. Music-only demo; call voices aren’t included.
The leaderboard
Dated public claims, normalized per month. ARR ÷ 12 is not verified MRR. Ranges rank by their lower bound. Includes historical figures and exit stories.
#1Jesse Venticinque
Fitbod & retention-led product growth
$20M ARR · Fitbod · May 2023
Start chatting →
#2Patrick Stuart-Constant
Sociaaal & app portfolio operations
$16M annualized revenue · Sociaaal · July 2026
Start chatting →
#3Matt Moss
Founder of Locket ($13M ARR, 10M DAU)
$13M ARR · Locket · May 2026
Start chatting →
Tibo Maker
SEO / GEO · SaaS pricing
$1.0M/mo
Chat →
Anada Lakra
Paid validation · User research
$833K/mo
Chat →
Luke Martin-Fuller
Customer fit · Health products
$833K/mo
Chat →
Jake Mor
Paywalls · Pricing
$750K/mo
Chat →
Blake Anderson
AI apps · Distribution
$500K/mo
Chat →
Alex Slater
Influencers · UGC
$500K/mo
Chat →
Connor McLaren
Distribution · Creator deals
$500K/mo
Chat →
Sarah Perl
Audience · Organic growth
$500K/mo
Chat →
Josh Mohrer
AI-assisted coding · Solo founder
$500K–$583K/mo
Chat →
Roy Lee
Launches · Founder content
$433K/mo
Chat →
Nevo David
Distribution · AI automation
$349K/mo
Chat →
Zach Yadegari
Influencers · Onboarding
$300K/mo
Chat →
Robby Frank
Paid ads · AI automation
$273K/mo
Chat →
Nicole
UGC · Viral concepts
$250K/mo
Chat →
Aaron Paul
UGC · Creator recruiting
$250K/mo
Chat →
Marc Louvion
Shipping · First customers
$217K/mo
Chat →
Pieter Levels
Bootstrapping · MVP validation
$200K–$250K/mo
Chat →
Jay Raavi
Solo building · UGC
$167K/mo
Chat →
Ernesto Lopez
Creator systems · Organic growth
$142K/mo
Chat →
George Lampropoulos
AI building · Combat sports
$126K/mo
Chat →
Mauro Botanes
Product experiments · Creator-led growth
$102K/mo
Chat →
Alex Vech
Onboarding · Paid acquisition
$100K/mo
Chat →
Connor Burd
Creator partnerships · Meta ads
$100K/mo
Chat →
Jon Yongfook
Bootstrapping · Developer marketing
$81K/mo
Chat →
Lino Leighton
Niche selection · MVPs
$50K/mo
Chat →
Max Hirsch
Founder content · Paywalls
$15K/mo
Chat →
Lucas
UGC · Creative testing
$14K/mo
Chat →
Henry Langmack
Product · Internal tools
Exited
Chat →
Michael Que
Creative testing · Onboarding
—
Chat →
Nikita Bier
Viral growth · K-factor & invites
Exited
Chat →
Jack Friks
Build in public · Organic content
—
Chat →
Adam Lyttle
ASO · Paywalls
—
Chat →
Mau Baron
UGC · Spark Ads
—
Chat →
Hunter Isaacson
Viral loops · Consumer apps
Exited
Chat →
Guillem Ros
Community · Organic growth
—
Chat →
Yves Benchimol
Earned media · Partnerships
—
Chat →
Vahe Baghdasaryan
Paywalls · Pricing
Exited
Chat →
Jacob Rodri
Viral app ideas · Demand validation
—
Chat →
David Attias
App acquisitions · Viral app features
—
Chat →
David Park
Influencer growth · SaaS positioning
Exited
Chat →
Oliver Brocato
Copycat protection · Brand protection
—
Chat →
David Im
AI growth · Growth experiments
—
Chat →
Tyler Denk
Newsletters · Email growth
—
Chat →
Luis von Ahn
Retention · Habits
—
Chat →
Rahul Vohra
Product-market fit · Customer research
—
Chat →
Brian Chesky
Customer experience · Product design
—
Chat →
Jason Fried
Bootstrapping · Product simplicity
—
Chat →
Dharmesh Shah
Inbound marketing · Customer success
—
Chat →
Guillermo Rauch
Developer experience · AI products
—
Chat →
Tobi Lütke
Product judgment · Metrics
—
Chat →
Andrew Gazdecki
App acquisitions · SaaS acquisitions
Exited
Chat →
The ingredients make the difference
Founder playbooks. Your product. A few different perspectives. Give your next decision more to work with.
Find my mentorsCurated public posts, interviews and product examples behind each founder persona. A source library you can actually inspect.
Public sources. Distinct perspectives.Save your SaaS brief or import your app’s store listing. Add your goals, then choose that product in any chat.
Less re-explaining. More useful context.ProductGrowthShippingInvite other personas with @. Compare their takes on the same brief, with every perspective in one conversation.
Growth, product, pricing. Together.Asking the same question doesn’t mean the assistant has the same sources. Each AI mentor draws on curated founder posts, interviews and product examples, including material that may not be available through web search. You can inspect the source library behind the persona.
“My creator ad gets installs, but almost nobody starts a trial.” Show the ad and onboarding to Julia Pintar’s and Vahe Baghdasaryan’s AI mentors. Ask Julia what the ad promises and Vahe whether the trial screen delivers on it.
“I have one week to ship. What can I cut and still charge for?” Ask Pieter Levels’ AI mentor what to cut, then Marc Lou’s AI mentor which cuts would remove the reason to pay.
Still powered by the model you choose. Better context for a useful decision — including “keep this as it is.”
Pick a vibe
💬
Normal
Straight answers, real numbers
“Post 3 slideshows a day on 5 fresh accounts for 30 days before you touch paid. Most of you quit on day 9.”
🔥
Unhinged
Unfiltered poster energy
“YOUR ONBOARDING IS 4 SCREENS TOO SHORT. people PAY for the feeling of being understood. ask them more questions 😭”
🌶️
Roast
Sharp feedback. Earned criticism.
“I came to roast this. Clear offer, readable pricing, and your results back it up. Leave it alone. You don’t need a redesign to feel productive.”
🧠
Deep dive
Full playbook, step by step
“Week 1: 10 hooks × 3 formats. Week 2: kill everything under 2K views, clone the winners on new accounts…”
😤
Angry
Zero patience for bad decisions
“WHY are we adding a sixth settings tab when nobody finishes onboarding? Fix the first five minutes. Then we can talk about features.”
🎭
Drama
Every launch has a plot twist
“Act I: a beautiful app. Act II: a paywall nobody understands. The plot twist? Your best feature never made it into the pitch.”
🕵️
Conspiracy
Connect the dots. Test the theory.
“Get the red string. People tap the offer, then disappear. A pricing conspiracy? Or confusing renewal copy? Let’s test the ordinary explanation first.”
🚀
Hype
Big energy. Next move ready.
“You’ve got a clear problem and a working prototype. That’s something to build on. Now get it in front of five real users and make the next version sharper. LET’S GO.”
Show it. Get feedback.
From your first screen to your next campaign. Share images or a video with an AI mentor. Get what to keep, what to change and why.
WHAT ARE YOU WORKING ON?
Share your screens in order or an onboarding recording. Explore the flow, copy and path to the paywall.
Your mentor. Your mode. Normal, Roast, Deep dive & more.
Show value before asking
Move permissions to the right moment
Attach multiple pictures and one video per message. For onboarding, put screenshots in the order users see them or share a screen recording. Pictures are resized to fit. Videos can be up to 5 minutes and 250 MB.
Sauce reviews what you upload; it doesn’t open or navigate your app or website. Video reviews use sampled frames, so brief screens or interactions may be missed. Choose a vision-capable model.
Speech is transcribed automatically when detected. OpenAI/Gemini can listen for clarity, noise, echo and voice delivery; other providers receive local audio level checks. Feedback depends on the uploaded material, the persona’s expertise and your selected mode. The illustrations above are examples, not a live analysis.
Honest feedback. No yes-men.
Personas challenge weak ideas and can tell you to keep a winner. No made-up fixes to fill a checklist. Even in Roast mode.
“Based on what you’ve shown, I’d keep this as is.”
A valid verdict. Bring results for context; screenshots alone can’t prove performance.
YOUR PRODUCT, MOVING FORWARD
Get a mentor review here on Sauce. Turn one recommendation into a test, keep it in Workspace, and come back with what you learned.
A review and two follow-ups are included: 3 replies per day with one mentor, while the shared daily allowance is available. No account or API key needed to start.
Find my mentors Open workspaceChoose Track this test beneath a mentor’s answer. Review and confirm what you want to try.
Find it in Workspace. Keep the change, metric, and review date together.
Add your results, then open a review with your mentors to decide what comes next.
Sign in with Google or email to sync products and tests. You can sync individual chats to your account.
For more website replies, video reviews, or teams, connect your own provider in Advanced settings. Your provider’s API billing applies. Voice calls also need Fish Audio setup.
Prefer an external assistant? MCP and the portable skill bring Sauce’s public research into your existing tools. They remain available as optional connections.
MCP & skill setup ↗Optional · Voice mode
Call one AI mentor or the team in your chat. One answers by default; ask everyone to hear each perspective in turn. Prepared founder voices are selected where available, with a labeled generic voice for the rest.
Text chat works without Fish Audio. Connect a Fish key only if you want voice calls.
AI simulation. Voice calls use your own chat-provider and Fish Audio keys.
Why we recommend Fish Audio
Free speech generation.
You pay Fish Audio directly. Sauce receives none of these payments and adds no markup.
S2.1 Pro Free offers free API speech generation through November 30, 2026, under Fish’s current terms. Your AI provider’s replies are billed separately. Fast transcription is paid: $0.36/hour connected. Add API credit to your Fish account before using Fast if your balance is empty. Local transcription with S2.1 Pro Free needs no Fish top-up.
Add API credit on Fish ↗GimmeTheSauce is not affiliated with or endorsed by Fish Audio. We recommend it because its API currently offers free speech generation.
Check Fish’s free-tier terms ↗Yes. GimmeTheSauce is free forever. Sponsors support the site, and you can start chatting with a mentor without signing up.
Yes, if your plan includes a supported assistant. For ChatGPT, sign in to Codex on your computer. For Claude, sign in to Claude Code. Open Sauce Connect on your Mac, choose the assistant, click Connect and approve the pairing. Then open a mentor chat. Your plan’s usage limits apply. Connect your assistant
Sauce brings a mentor’s research and your product brief into the conversation. Ask where your onboarding loses people, for example. A mentor can pull up a relevant app flow, chart or slide, explain what’s worth keeping, and challenge a change that doesn’t fit your app.
You’re chatting with an AI persona based on a founder’s public posts, interviews and product examples. Open the mentor’s source library to see what informed its replies.
Yes. Attach a creator video and ask which shots to keep or reshoot. For onboarding, record the flow from first launch to paywall and ask where a user might drop off. A model with vision can review sampled frames and point to the moments behind its advice.
Yes. Type @ to invite a mentor, or accept a recommendation to bring one into the conversation. Say “Karol, what would you change?” for Karol’s take, name Marc and Pieter to hear from both, or ask everyone to weigh in.
Invite the mentors into one chat, then choose Call. Your connected assistant generates their replies, and a separate Fish Audio key handles speech. The invited mentors join the same call, each with their own voice. Set up voice calls
Save your app’s store listing or a short product brief and select it in the chat. Under a useful reply, choose “Track this test.” Review the experiment and its metric, then return to your workspace to record what happened. Open your workspace
Choose “Share chat” to create a read-only link to the conversation through the last completed reply. Uploads and later messages stay private. You can revoke the link whenever you want.
No. You can chat in your browser. The Mac app pairs Sauce with an assistant running on your computer. If you prefer working inside your own AI app, you can also bring Sauce’s mentor research into it with the MCP connector or the Agent Skill. See the connection options