Growify Lifetime Deal
Improve paid ad decisions with AI attribution, creative insight, and customer journey tracking
Turn startup ideas into evidence-backed decisions and practical build plans before you invest
Disclosure: SAASTOOLY may earn an affiliate commission from purchases at no extra cost to you. Deal terms can change, so the current AppSumo listing is authoritative.
A subscription used mainly for startup research becomes another recurring bill between projects. Preuve AI offers a one-time alternative starting at $49, against an original comparison price of $148 in the listing data.
AppSumo positions it as an alternative to VentureKit, ChatGPT, and Perplexity for researching startup ideas. The purchase makes the most sense when validation is the job you need done. You get demand research, competitor information, pricing evidence, and a development plan. Whether it cancels an existing subscription depends on what else you use that subscription for. That distinction matters when comparing a lifetime deal with a subscription.
Preuve AI researches startup ideas before development. Ten AI agents work across more than 60 live sources, including Crunchbase, Google Trends, Reddit, Product Hunt, and G2. Deep reports contain up to 20 sections, with source links behind their findings.
The output includes a viability score, competitor analysis, suggested changes, and an MVP build kit. Starter Scans help shortlist ideas before committing a deep report. Tier 4 adds a branded agency workflow for paid client validation.
One-time prices: $49, $129, $259, or $539.
Purchase type: Lifetime access with all future plan updates.
Listed alternatives: VentureKit, ChatGPT, and Perplexity.
Refund window: Refundable up to 60 days.
Tier structure: Four directly selected license tiers, with upgrades and downgrades permitted.
Codes and stacking: No codes and no stacking.
Activation deadline: Activate your license within 60 days of purchase.
Integrations: API, Claude, ChatGPT, MCP, and Cursor.
The AppSumo refund policy guide provides useful context for planning your evaluation within the purchase window.
The clearest price comparison is $49 against the entry tier’s $148 original comparison price. Higher tiers list original comparison prices of $398, $995, and $3,184.
For subscription savings, count only a bill you can actually cancel. If Preuve AI covers your research needs while you keep ChatGPT for other work, the purchase is an additional expense. Its strongest financial case is replacing a research-only subscription while keeping your usage within the included allowances.
A Starter Scan returns a score and verdict in about 60 seconds. This lets you screen several concepts before spending a limited deep report on one.
Deep reports research market demand, pricing, and risks. Demand signals include complaints and requests from Reddit, Quora, and niche forums.
The competitor map covers up to 15 competitors, with funding, pricing, traction, threat levels, and suggested ways to compete. Source links give you a route back to the evidence when reviewing a conclusion.
Smart Pivots identify what is holding the score back and rank alternative directions by expected gain. Each includes effort, evidence, changes, retained elements, and trade-offs.
Applying a pivot runs a new deep report on that version. You can also rewrite the idea yourself and re-score it once per report for free.
Every tier includes a build kit with AGENTS.md, a five-milestone PLAN.md, and documents covering buyers, scope, competitors, pricing, and risks.
The kit works with Claude Code, Cursor, Codex, Antigravity, or Lovable. MCP access lets Claude, ChatGPT, or Cursor read your reports. This is useful for founders working with development and IT tools who want their research carried into implementation.
The first 100 customers plan includes buyer targeting, outreach channels, copy-paste emails, and interview scripts.
Tier 4 adds branded intake forms, prospect scores and fit labels, client sharing controls, and Markdown or JSON client report exports. The commercial license permits paid client work.
All tiers include Build with AI, viability scoring, competitor mapping, the first 100 customers plan, demand signals, MCP access, and cited sources.
Tiers 1 to 3 provide a lifetime bank of deep reports and Smart Pivots. These allowances do not reset monthly. Market alerts rerun an idea monthly for three months and email changes, with new competitors first.
The limits scale differently. Tier 3 raises deep reports from 10 to 25, while Starter scans rise from 100 to 200 and Smart Pivots from 3 to 5. Tier 4 changes the pivot allowance to one per report and adds client-work features.
This uses direct tier selection. The usual code-stacking approach does not apply. The FAQ says existing reports remain when allowances run out and upgrades are available by paying the difference.
Lifetime access comes with finite research allowances. Even Tier 4 includes 80 deep reports rather than unlimited deep research. Its Starter scans also have a fair-use threshold.
Client work requires Tier 4. Commercial use, client report exports, branded delivery, and sharing controls are unavailable on Tiers 1 to 3. The agency tier also drops monthly market alerts.
The business is young and founder-led. Preuve AI was founded on January 26, 2026, and is bootstrapped in Paris. Vincent Forat says he is building it alone. Long-term dependence deserves consideration alongside the broader pros and cons of lifetime deals.
Who it suits
Who should look elsewhere
Tier 2 is the most balanced choice for a founder comparing several ideas. It offers 100 Starter scans and 10 deep reports without the agency tier’s higher upfront cost. Tier 1 suits a smaller shortlist; Tier 4 makes sense when branded client validation is already part of your paid work.
The purchase case rests on cited research and a usable development handoff. Treat the score as an input to your decision, and size the purchase around work you expect to do soon. The finite allowances and solo-founder business make speculative buying less attractive.
Activate immediately after purchase, ahead of the 60-day activation deadline. Make your keep-or-refund decision by day fifty, while the 60-day refund window is still open.
SAASTOOLY Rating: 4.5/5
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A Starter Scan provides a score and verdict in about 60 seconds. A deep report takes several minutes and includes live research by ten agents, up to 20 sections, Smart Pivots, and a build kit.
Tiers 1 to 3 provide a lifetime bank of deep reports and Smart Pivots that you can spend whenever you want. Tier 4 includes 80 deep reports in one agency pool.
It is listed as unlimited under fair use of 100 scans every 30 days.
Yes. Every tier includes the build kit for Claude Code, Cursor, Codex, Antigravity, or Lovable, plus MCP report access through Claude, ChatGPT, or Cursor.
Tier 4 includes the commercial license, white label, client sharing controls, agency workspace, and Markdown or JSON client report exports.
You must activate your license within 60 days of purchase. The purchase is also refundable up to 60 days.