No free plan, and a smaller trial
The trial lasts 3 days at 10 credits a day, 30 in total, and then “Your subscription starts automatically”. In May 2026 the same page gave 20 credits a day.
Shortlist · Buildpad alternatives
Buildpad costs $39 a month after a 3-day trial, and its docs describe sites that collect signups, not payments. A one-off report starts at $9 at DimeADozen; to sell, DoAny Free costs $0 and takes 0% of sales (Stripe’s fees apply).
Fee calculator
Only DoAny and Lovable can take payments, so each research tool is priced with the Lovable plan you pick.
From idea to selling over 12 months, DoAny Free costs $0, the lowest of the seven. Buildpad Pro then Lovable Pro costs $314.
Prices and fees checked September 25, 2026
Scroll sideways to see every column.
| What you pay | DoAny Free | Buildpad Pro | Claude or ChatGPT | DimeADozen | IdeaProof | IdeaBuddy | Lovable Pro |
|---|---|---|---|---|---|---|---|
| Validate with | Annie’s research | Pro, $39 a month | Pro or Plus, $20 a month | Starter report, $9 once | 40 of 90 free credits | Founder, $20 a month | No research tool |
| Research, 1 month | In the plan | $39 | $20 | $9 | $0 | $20 | None |
| Take payments with | DoAny checkout | Lovable Pro | Lovable Pro | Lovable Pro | Lovable Pro | Lovable Pro | Lovable Pro |
| Plan that takes payments | $0 | $275 | $275 | $275 | $275 | $275 | $300 |
| Total, 12 months | $0 | $314 | $295 | $284 | $275 | $295 | $300 |
Sources, checked September 25, 2026
The documented reasons
Buildpad, called aicofounder.com until July 2026, does validation well. The reasons to look elsewhere are in its own pricing, docs and Terms, plus one dated review.
The trial lasts 3 days at 10 credits a day, 30 in total, and then “Your subscription starts automatically”. In May 2026 the same page gave 20 credits a day.
Some visitors to the pricing page see Pro at $59 for 300 credits instead of $39 for 200, from an experiment named pricing_59_2026_09; the DoAny vs Buildpad cost section documents the test.
Rollover is capped at one month’s allocation, bought credits included, and everything left is forfeited when you cancel (Terms §8).
The only backend in the website docs is email capture, and calendar posts are “not published automatically”. A sponsored Startup Stash review (July 24, 2026, credits provided by Buildpad) praised the landing page but called marketing “the weakest part of the product right now”, with posts copied and pasted by hand.
Side by side
Published prices on September 25, 2026, before tax. Buildpad is the baseline. “Best for” is our judgment from each vendor’s published scope, not a quality score. Credits are not comparable across vendors, so compare what each price buys.
Swipe to compare every column.
| Tool | Price | Best for | Key limitation |
|---|---|---|---|
| Buildpad (baseline) | 3-day trial (30 credits), then Pro $39 for 200 credits or Max $85 for 500. Plans | Cited research, voice interviews and pushback | No documented checkout or logins; posts pasted by hand |
| DoAny (ours) | Free $0 (5 credits a day, up to 30 a month, no card) can take payments; Pro from $25 a month. DoAny pricing | A live product that takes payments, plus posting and follow-ups | Web apps only, chat-only editing, checkout on the sites it builds is Stripe only |
| Claude Pro or ChatGPT Plus | Claude Pro $20 a month billed monthly in the US ($17 billed annually). Claude pricing. ChatGPT Plus $20 a month. OpenAI help | Open-ended research you steer yourself | No guided validation, and no hosted product with checkout |
| DimeADozen | Free idea score; $9 Starter, $129 Entrepreneur, $179 for three reports; paid once. DimeADozen pricing | One deep report before you commit to a tech idea | By its own account, not for non-English markets |
| IdeaProof | 90 free credits; €19.99 for 150, €49.99 for 700, €99.99 for 1,500, paid once. IdeaProof pricing | A quick GO/NO-GO and market sizing, no subscription | “89% prediction accuracy” is the vendor’s own claim |
| IdeaBuddy | 15-day trial, no card; Dreamer $15 a month ($5 billed annually); Founder $20 ($8 billed annually). IdeaBuddy pricing | A business plan with financial projections | Business Plan and Validation on Founder only |
| Lovable | Free $0 (5 build credits a day, up to 30 a month); Pro $25 a month for 100 credits. Lovable pricing | A custom app you or a developer will keep extending | Busy apps and in-app AI spend the credits you build with |
One by one
DoAny is listed first because it is ours, and it gets the same format as the rest: who it suits, what to watch out for and the exact price.
Best for: non-technical founders who want a real business on the web, not a report.
Watch out for:
Price: Free is $0 with no card, 5 credits a day up to 30 a month, and it can take real card payments once you go live. Pro starts at $25 a month for 100 monthly credits plus 5 a day, and adds teammates, your own domain and top-ups; top-ups cost $15 per 50 and last 12 months. Every plan, Free included, runs any number of companies on one credit balance. Hosting is included and uses no credits. When credits run out, work pauses and DoAny tells you: no overage, no automatic recharge. For just these two, read DoAny vs Buildpad.
Best for: researching a market, drafting interview questions and pressure-testing a price without another subscription. Both plans include Projects; ChatGPT Plus lists “expanded deep research”. Buildpad’s own comparison says its Pro plan “costs more than ChatGPT Plus”.
Watch out for: you supply the process. Nothing walks you through validation, interviews prospects or pushes back unless you ask, and you get answers and documents, not a hosted product with checkout.
Price: Claude Pro is $20 a month billed monthly in the US, or $17 a month billed annually, before tax. ChatGPT Plus is $20 a month, billed monthly, according to OpenAI’s help center; the ChatGPT pricing page shows the local price for your region.
Best for: deciding whether to build one tech idea for an English-speaking market. The vendor calls that its “best fit”. Reports cite public sources from US, UK and Australian markets.
Watch out for: its own “not the right fit” list: businesses 5+ years old, non-tech specialty verticals, non-English-speaking markets and enterprise B2B such as school-management software. Each report covers one idea, so a pivot means another purchase.
Price: a free 4-dimension idea score in about 2 minutes; the $9 Starter (7 sections, 60+ URL citations); the $129 Entrepreneur report (100+ pages); three full reports for $179. All paid once, with a 14-day money-back guarantee. DimeADozen pricing
Best for: a go/no-go verdict, market-size estimates (how many people could buy) and a map of similar products, as a PDF. It prices each output in credits: a validation is 40, a market analysis 100, a business plan 100. Buildpad’s own validation-tools roundup ranks it third, behind Buildpad and Validator AI.
Watch out for: “89% prediction accuracy” is IdeaProof’s own marketing figure. A GO signal is not a customer. Prices are in euros.
Price: 90 free credits with no card, enough for two validations. Then €19.99 for 150 credits, €49.99 for 700 or €99.99 for 1,500, VAT included, paid once; credits never expire. IdeaProof pricing
Best for: a guided business plan with financial projections, a canvas and export to PDF, Word and Excel.
Watch out for: the Business Plan and Validation tools are on Founder only. The trial leaves out sharing and export, and AI requests are capped: 10 on the trial, 25 a month on Dreamer and 50 on Founder with monthly billing. It produces a plan, not a product.
Price: a 15-day trial with no card, for 1 idea and 1 collaborator. Dreamer is $15 a month, or $5 a month billed annually; Founder is $20 a month, or $8 billed annually. VAT may apply, and purchases carry a 15-day money-back guarantee. IdeaBuddy pricing
Best for: a custom full-stack app built from chat, with the code in your own repository through two-way GitHub sync. It can take payments through built-in payments on paid plans or, even on Free, through a Stripe account you already have.
Watch out for: running the app can spend credits. Hosting for most small apps is covered by an included 20-credit monthly Cloud grant, which Lovable’s docs call “a temporary offering”, but apps with significant traffic draw on the same balance you build with, as do AI features inside your app. At zero credits the backend pauses, and top-ups are sold on Pro and Business only. Since September 9, 2026, Free and Pro content can be used for training unless you opt out.
Price: Free is $0 with 5 build credits a day, up to 30 a month, plus 20 Cloud credits a month. Pro is $25 a month for 100 credits, or $250 paid a year up front; Business, which adds SSO, is $50. Lovable pricing
Both charge $25 a month for 100 credits plus 5 daily credits (on Lovable these are build credits, capped at 30 a month on some regional plans), and neither takes a cut of your sales. Four things separate them:
Selling on Free: DoAny’s Free plan ($0) can go live and take real card payments through its built-in checkout. Lovable’s built-in payments need a paid plan; on Lovable Free you connect a Stripe account you already have instead.
At zero credits: a Lovable app’s database, logins and storage pause; DoAny’s hosting uses no credits, so only AI work pauses.
Training: since September 9, 2026, Lovable may train on Free and Pro content unless each member opts out; DoAny doesn’t train AI models on your data.
After launch: Annie keeps posting, following up and answering customers, and the big calls wait for your approval.
Pick Lovable to work in the code, bring a Stripe account you already have, have Paddle act as the legal seller and handle sales tax, or get SSO. More in DoAny vs Lovable.
Arithmetic on published prices
A common first job for a Buildpad user: compare two ideas before committing to one. Prices before tax on September 25, 2026. Each tool hands you something different, so read the last column before the total.
Swipe to compare every column.
| Tool | What you buy | Cost for two ideas | What you end up with |
|---|---|---|---|
| IdeaProof | Two validations at 40 credits each = 80 credits | €0, inside the 90 free credits | Two viability scores with GO/NO-GO signals. Market analyses for both need 200 more credits: the 10 left plus two €19.99 packs (2 × 150) give 310, for €39.98 |
| DimeADozen | Two Starter reads, or full reports | 2 × $9 = $18; full reports 2 × $129 = $258, or $179 for the 3-Pack | Two reports, with one full report spare on the 3-Pack |
| Claude Pro | One month | $20 (US, billed monthly) | Research threads you structured yourself |
| DoAny | Free, a separate company for each idea | $0, and both can still take payments | Research on both ideas and a live first version of each, as far as the 30 monthly credits both companies share go; Pro, from $25, adds 100 monthly credits plus 5 a day |
| Buildpad | The 3-day trial, then one Pro month | $39 ($59 at the test price) | Cited research, a plan and a signup page for each; its docs put 200 credits at “~5 projects” |
Decision rules
Swipe to compare every column.
| If your next job is | Pick | Because |
|---|---|---|
| Deciding whether one tech idea is worth building | DimeADozen | One report, $9 or $129, refundable within 14 days. |
| A quick GO/NO-GO without a subscription | IdeaProof | 90 free credits; packs from €19.99 that never expire. |
| A business plan with financial projections | IdeaBuddy Founder | The Business Plan and Validation tools are on Founder: $20 a month, or $8 billed annually. |
| Open-ended research on a subscription you already have | Claude Pro or ChatGPT Plus | $20 a month for Claude Pro in the US or for ChatGPT Plus; you supply the structure. |
| Guided validation with interviews and pushback | Stay on Buildpad | Cited multi-agent research and voice interviews are what it does best. |
| A custom app you’ll extend with a developer | Lovable | Two-way GitHub sync; Pro $25 a month. |
| A live product that takes payments, plus posting and follow-ups | DoAny | Stripe checkout on your own account, 0% of sales to DoAny (Stripe’s fees apply), hosting included, and the Free plan ($0) can take payments. |
If the idea isn’t ready for any of these, start with how to start a company from zero, or browse every side-by-side comparison on the comparisons page.
Switching from Buildpad
Buildpad’s docs describe no customer payments or logins, so there is no money or account data to move. These steps work whichever alternative you pick.
One click exports the whole canvas as a ZIP: documents, notes and calendar posts as Word, PDF, TXT or Markdown, plus the website code. Images in documents stay behind and citations become plain links. Pick Markdown: it pastes cleanly into a Claude or ChatGPT project, an IdeaBuddy plan or a DoAny brief. Export guide
Website code comes as a ZIP with a README for Netlify, Vercel and GitHub Pages, and captured emails as a CSV with timestamps. The docs don’t say whether the signup form keeps working once the code is hosted elsewhere, so treat the CSV as your record. Moving to DoAny, bring the exported code and your signup list: DoAny imports existing code and database records, so you don’t start over.
You keep access until the paid period ends, so spend your credits before then. Once you cancel, unused credits, bought ones included, are forfeited at the end of the current billing period. Terms §8.4. Cancel your subscription
If you connected your own domain on Pro or Max, point its DNS at the new host. Unpublish takes the Buildpad site offline and keeps your work. Publishing
Deleting a Buildpad account does not cancel the subscription, so cancel first. DoAny vs Buildpad covers the payments go-live and domain steps for a move to DoAny.
Common questions
Buildpad Pro is $39 a month for 200 credits and Max is $85 for 500, after a 3-day trial of 10 credits a day that converts to a paid plan automatically. A live price test shows some visitors $59 for 300 credits and $125 for 700. Top-ups cost $20 per 100 credits. There is no free plan, and the pricing page lists monthly prices only.
For a live product, DoAny Free (our product): $0, no card, 5 credits a day up to 30 a month, and it can go live and take real card payments with 0% of sales to DoAny (Stripe’s fees apply). Lovable Free gives 5 build credits a day; its built-in payments need a paid plan. For a report, IdeaProof’s 90 free credits cover two validations, DimeADozen scores an idea free, and IdeaBuddy’s trial runs 15 days with no card.
DoAny and Lovable. DoAny sets up Stripe checkout on your own Stripe account once you approve it on a card, and takes 0% of sales; Stripe’s processing fees apply. That works on DoAny’s Free plan: you can press Go live and take real card payments for $0 a month. Lovable offers built-in payments on paid plans, or a Stripe account you connect with an API key. DimeADozen, IdeaProof, IdeaBuddy and a general assistant produce reports, plans and answers, not a checkout. Buildpad’s docs describe email capture only.
If you already pay for one and are comfortable steering it, it covers open-ended research. Claude Pro lists $20 a month billed monthly in the US, OpenAI’s help center lists ChatGPT Plus at $20 a month, and Buildpad’s own comparison page says its Pro plan costs more than ChatGPT Plus. You supply the process: neither walks you through validation, interviews prospects for you or hosts a product with checkout.
No. A score or a 100-page report is an AI’s reading of public information and your description. The strongest evidence is a stranger signing up or paying. Use a report to decide what to test, then test it on a real page. Accuracy percentages in marketing, such as IdeaProof’s 89%, are the vendor’s own figures.
Stay while your next month is research: its agents cite sources, its voice interviews reach real prospects and it pushes back on weak ideas. Move when you need checkout, customer logins, stored data or posting that happens without you pasting it.
Source record
DoAny facts are our first-hand description of the product and its public pages. Every other fact comes from the vendor’s own pricing page, docs or terms, except one labeled, sponsored third-party review. A Wayback Machine snapshot shows Buildpad’s earlier trial terms. Claude prices are the US prices and the ChatGPT Plus price is the one in OpenAI’s help center; both vendors show local prices by region. Every source was checked on September 25, 2026.
Put the evidence to work
Start on DoAny Free: 5 credits a day, no card. Build the first version, then test checkout with Stripe test cards before you give Stripe anything, and go live to take real payments, still on Free. For the side-by-side comparison, read DoAny vs Buildpad.