Core job
Preuve AI
Validate your specific idea with live evidence
IdeaBrowser
Browse 1,000+ pre-researched startup ideas
IdeaBrowser review (2026)
Great for finding ideas. Not built to prove yours works.
IdeaBrowser is a curated catalog of 1,000+ startup ideas by Greg Isenberg. Preuve validates your specific idea against 50+ live sources, every claim linked to its origin.
Side by side
Feature comparison at a glance
Verdict
Preuve AI wins 9 of 11 validation steps.
IdeaBrowser browses ideas for you. Preuve validates the one you already have.
01What it does1 rows
02How it works3 rows
Data source
LivePreuve AI
50+ live sources (Crunchbase, Trends, Reddit, PH, G2)
→ Your report reflects the market right now, not when someone last updated a catalog entry.
IdeaBrowser
Curated research team + AI analysis of Reddit, search, trends
Source links
VerifiablePreuve AI
Every claim links to its origin
→ Click any number to see where it came from. No trust required.
IdeaBrowser
Trend signals cited, individual claims not linked
Competitor data
Real-timePreuve AI
Live data with funding, pricing, traction for up to 15 competitors
→ Real competitors with real funding rounds, pulled fresh for your specific idea.
IdeaBrowser
Market analysis included in catalog entries, not live per-idea
03What you get5 rows
Validate your own idea
$29Preuve AI
Free scan + $29 full report, any idea
→ $29 one-time vs $1,499/year. That is 51x the price for a comparable report.
IdeaBrowser
Pro tier only ($1,499/yr), 3 reports/month
Report format
InteractivePreuve AI
15-section interactive dashboard + shareable link
→ Share a live dashboard with your co-founder, not a static page.
IdeaBrowser
Catalog entry with research, or Research Agent report (Pro)
Idea discovery
N/APreuve AI
Not a discovery tool
→ Preuve validates; it does not generate ideas. IdeaBrowser wins here.
IdeaBrowser
1,000+ ideas, daily feed, AI idea generator, trend reports
Scoring
HonestPreuve AI
6 frameworks, median 55, 18.3% pass rate, every input linked
→ A score that tells you when to stop. Only 18.3% of ideas earn a go verdict.
IdeaBrowser
Proof signals and framework fits (ACP, Value Equation)
Pivot recommendations
Gap-drivenPreuve AI
3 pivots based on competitive gaps + market signals
→ When the verdict is no, you walk away with directions worth testing.
IdeaBrowser
Browse related ideas in the catalog
04Access & cost2 rows
One-time pay vs subscription, and who it is for.
Free tier
Full scanPreuve AI
Full scan: score + risks + 2 competitor previews (permanent)
→ A real scan on your idea, not a preview of someone else's.
IdeaBrowser
Idea of the Day (24-hour access, one idea)
Pricing model
One-timePreuve AI
$29 one-time per report
→ Pay for what you use. No annual commitment, no recurring bill.
IdeaBrowser
$499-$2,999/year, annual-only billing
Feature
Preuve AI
What it gives you + why it mattersIdeaBrowser
1What it does
Core job
Validate your specific idea with live evidence
→ These are different tools for different stages. IdeaBrowser is for finding a direction; Preuve is for checking whether that direction has a market behind it.
Browse 1,000+ pre-researched startup ideas
3How it works
Data source
50+ live sources (Crunchbase, Trends, Reddit, PH, G2)
→ Your report reflects the market right now, not when someone last updated a catalog entry.
Curated research team + AI analysis of Reddit, search, trends
Source links
Every claim links to its origin
→ Click any number to see where it came from. No trust required.
Trend signals cited, individual claims not linked
Competitor data
Live data with funding, pricing, traction for up to 15 competitors
→ Real competitors with real funding rounds, pulled fresh for your specific idea.
Market analysis included in catalog entries, not live per-idea
5What you get
Validate your own idea
Free scan + $29 full report, any idea
→ $29 one-time vs $1,499/year. That is 51x the price for a comparable report.
Pro tier only ($1,499/yr), 3 reports/month
Report format
15-section interactive dashboard + shareable link
→ Share a live dashboard with your co-founder, not a static page.
Catalog entry with research, or Research Agent report (Pro)
Idea discovery
Not a discovery tool
→ Preuve validates; it does not generate ideas. IdeaBrowser wins here.
1,000+ ideas, daily feed, AI idea generator, trend reports
Scoring
6 frameworks, median 55, 18.3% pass rate, every input linked
→ A score that tells you when to stop. Only 18.3% of ideas earn a go verdict.
Proof signals and framework fits (ACP, Value Equation)
Pivot recommendations
3 pivots based on competitive gaps + market signals
→ When the verdict is no, you walk away with directions worth testing.
Browse related ideas in the catalog
2Access & cost
One-time pay vs subscription, and who it is for.
Free tier
Full scan: score + risks + 2 competitor previews (permanent)
→ A real scan on your idea, not a preview of someone else's.
Idea of the Day (24-hour access, one idea)
Pricing model
$29 one-time per report
→ Pay for what you use. No annual commitment, no recurring bill.
$499-$2,999/year, annual-only billing
Pricing verified manuallyFeature pages reviewedResearch Agent tested
The real question
Do you need to find an idea, or prove one works?
Most comparisons treat these tools as competitors, but that framing is wrong. They solve different problems at different points in the process.
IdeaBrowser
Idea discovery catalog
“I don’t know what to build yet.”
- 1,000+ pre-researched startup ideas with market context
- Daily Idea of the Day with trend signals
- AI idea generator matched to your skills
- Founder-fit frameworks (ACP, Value Equation)
- Greg Isenberg's podcast ecosystem and community
- Best when you want inspiration and a starting point
Preuve AI
Idea validation engine
“I have an idea. Will it work?”
- 50+ live sources scanned for your specific idea
- Every claim links to its origin, so you can verify it
- Up to 15 competitors with real funding and pricing data
- Viability score across 6 frameworks (18.3% pass rate)
- 3 pivot directions when the verdict says no
- Best when you need proof before committing time or money
Fair assessment
What IdeaBrowser does well
IdeaBrowser has built a real idea-discovery platform with a lot of thought behind it.
The catalog
1,000+ pre-researched ideas with market sizing, competitor context, execution outlines, and trend signals. Each entry represents real research condensed into an actionable format.
Greg Isenberg's ecosystem
Built by the host of The Startup Ideas Podcast (ex-Reddit, ex-TikTok advisor). The Empire tier ($2,999/yr) includes weekly coaching, AMAs, and a builder community. The brand is real.
Daily idea cadence
The Idea of the Day creates a habit loop: one fresh idea with a full walkthrough, every day. For founders in browsing mode, that cadence works better than a static list.
The pricing reveal
Can IdeaBrowser validate your own idea?
Yes, but only from the $1,499/yr Pro tier, which is not where most people start.
TierPriceValidate your own idea?
Free
$0
No. Daily Idea of the Day only (24hr access).
Starter
$499/yr
No. Browse the catalog, trends, and 20 AI-generated ideas/month.
ProMinimum for your idea
$1,499/yr
Yes. Research Agent: 3 reports/month on your own ideas. No source links in output.
Empire
$2,999/yr
Yes. 9 reports/month + coaching with Greg Isenberg + builder community.
With Preuve AI: $29 one-time for a full source-linked report on any idea.
No annual commitment. No tier gates. That is 51x less than IdeaBrowser Pro for a comparable validation report.
What Preuve AI does differently
Live source scanning
50+ sources searched in real-time. Crunchbase, Google Trends, Reddit, Product Hunt, and G2 are in the mix, pulled live rather than from training data.
Verifiable claims
Click any data point to see where it came from. Every competitor, funding round, and demand signal links back to its origin so you can check the claim yourself.
Honest scoring
Only 18.3% of ideas earn a go verdict. Six scoring frameworks run against live data, so the score reflects what the market actually shows rather than what a founder wants to hear.
Investor-ready deliverables
$499 package with pitch deck, investment memo, 18-month financial model, and competitive teardown. Built for due diligence, not brainstorming.
Interactive dashboard
Shareable link with 15 interactive sections. Filter competitors, drill into market data, and share specific sections with co-founders or investors.
Competitor intelligence
Actual competitors with their funding history, current pricing, and traction numbers pulled live. Not a list of names generated from an LLM's training data.
The verdict
Who should use which tool
This is not an either/or. IdeaBrowser helps you find the idea worth building, and Preuve runs the evidence check once you have one.
IB
Choose IdeaBrowser if
- You don't have a specific idea yet and want to browse opportunities
- You want daily inspiration with trend context and market signals
- You value coaching and community (Empire tier)
- You follow Greg Isenberg and want access to his ecosystem
Choose Preuve AI if
- You have a specific idea and need evidence it will work
- You want source-linked proof you can verify yourself
- You need investor-ready deliverables for fundraising
- You want honest scoring that tells you when to pivot, not just what sounds good
Use both? Browse IdeaBrowser to find an idea worth exploring, then run it through Preuve AI to see if the data actually backs it up before you spend a weekend building.
Already have an idea?
Score it in 60 seconds
Paste your idea and get a viability score, top risks, and competitor previews. Free, with source links on every claim.
Score my idea free→Join 111+ founders who validated first
FAQ
Common questions about Preuve AI vs IdeaBrowser
Is IdeaBrowser worth $499 a year?
IdeaBrowser Starter ($499/yr) gives access to 1,000+ pre-researched ideas, trend reports, and 20 AI-generated ideas per month. If you are in discovery mode and want a daily stream of curated opportunities, the catalog is genuinely useful. If you already have an idea and need to validate it, the Research Agent requires Pro ($1,499/yr), and Preuve AI delivers source-linked validation for $29 one-time.
Can IdeaBrowser validate my own startup idea?
Yes, but only on the Pro tier ($1,499/year). The Research Agent runs a multi-step analysis on your idea, producing market sizing, competitor analysis, and revenue projections. However, the output does not link claims to their sources. Preuve AI validates your idea for $29 one-time and links every data point to one of 50+ live sources so you can verify the evidence yourself.
What is IdeaBrowser's Research Agent?
The Research Agent is an AI-powered tool available on Pro ($1,499/yr, 3 reports/month) and Empire ($2,999/yr, 9 reports/month). It runs an automated multi-step process covering market sizing, competitor analysis, and revenue projections. Reports attach to your Hub project workspace for context across other tools. The main limitation: claims are not linked to their data sources.
How does IdeaBrowser compare to Preuve AI?
They solve different problems. IdeaBrowser is an idea discovery catalog: browse 1,000+ pre-researched ideas, get daily trend reports, and use AI to generate new concepts. Preuve AI is an idea validation engine: paste your specific idea and get a source-linked report with viability score, up to 15 competitors with real funding data, market sizing, and 3 pivot directions. IdeaBrowser helps you find an idea ($499-$2,999/yr). Preuve helps you prove one works ($29 one-time).
Does IdeaBrowser have a free tier?
IdeaBrowser offers a free Idea of the Day: one curated startup idea with a walkthrough, available for 24 hours. Accessing the full database, trend reports, or AI tools requires a paid plan starting at $499/year. Preuve AI offers a free scan that returns a viability score, top risks, and 2 competitor previews with no time limit.
IdeaBrowser features and pricing based on ideabrowser.com as of June 2026. Features and pricing may have changed. All trademarks belong to their respective owners. The 18.3% pass rate is based on Preuve AI scan data across all reports run to date.