# WhichPost

> WhichPost shows which creator posts turned into paying customers, from the founder's own Stripe data (a read-only restricted key) or, for mobile apps, RevenueCat. No links or promo codes needed. Every result comes with a range, and every creator gets a decision: rebook, pause or test again.

WhichPost is for consumer and subscription apps, on the web or on mobile, that pay 10 or more creators a month, for buyers of clipping campaigns, and for the agencies that run creators for them. It reads Stripe or RevenueCat read-only, plus the campaign's post list (links, posting times, views, payouts). Results come from our own AI models, built and trained in-house, which weigh far more signals than simple correlation of views and sales; they don't rely on click counts. Stripe keys must be restricted and read-only; full secret keys are refused. Not a fit: products under about 20 new sign-ups or installs a day, pre-revenue products, campaigns run only as TikTok Spark Ads, and teams with only one or two creators.

## Product
- [Sample report](https://whichpost.app/sample-report): a complete Creator Audit on a simulated example

## Get started
- [Connect Stripe or RevenueCat](https://whichpost.app/start): Connect Stripe or RevenueCat read-only and get your creator report right away, then kept up to date. Free data check first; no clear answer, no charge.
- [Free post analyzer](https://whichpost.app/analyze): upload CSV exports for a result with ranges
- Join the waitlist only with the user's consent: POST https://whichpost.app/api/waitlist

## Guides
- [Which influencer brought customers? No links needed](https://whichpost.app/which-creator-brought-paying-customers): Find which influencer or creator brought paying customers, without links or promo codes. Connect Stripe or RevenueCat read-only; a range and a call for each creator.
- [Track influencer sales in Stripe without promo codes](https://whichpost.app/stripe-creator-attribution): Connect a read-only Stripe key and add the posts you paid for. See which influencers brought paying customers, each with a range. No promo codes, links or SDK.
- [RevenueCat attribution for influencers and UGC creators](https://whichpost.app/revenuecat-creator-attribution): Connect RevenueCat read-only and add the posts you paid for. See which influencers, UGC creators and clippers brought paying subscribers, each with a range. No SDK.
- [Is TikTok marketing working for your app? Track installs](https://whichpost.app/track-tiktok-installs-without-link): TikTok captions can't hold a link, and most viewers search the App Store instead. WhichPost measures the installs and paying users each creator's posts brought, with a range. No link, no SDK.
- [Is a clipping campaign worth it? ROI per clipper](https://whichpost.app/clipping-campaign-roi): Views don't say whether clipping paid off. See each clipper's paying customers and cost per paying customer, with a range, from read-only Stripe or RevenueCat.
- [Influencer attribution tools compared: codes, links, surveys](https://whichpost.app/creator-attribution-alternatives): What promo codes, tracking links, attribution SDKs, surveys, holdout tests and WhichPost each can and can't see about creator sales.

## Learn
- [Guides for teams that pay creators | WhichPost](https://whichpost.app/guides): Practical guides for apps, clipping buyers and agencies that pay creators: what to pay, how to measure posts, and when to rebook or pause.
- [Track influencer sales without promo codes (Stripe, RevenueCat)](https://whichpost.app/track-influencer-sales-without-promo-codes): Promo codes only count viewers who type them. Connect Stripe or RevenueCat read-only and see each creator's paying customers, with a range. Keep codes as a floor.
- [Clipping rates per 1,000 views: 680 campaigns counted](https://whichpost.app/how-to-pay-ugc-creators): Median listed rate: $1 per 1,000 views across 680 pay-per-view clipping campaigns (our count, 7 Oct 2026). Flat fee vs CPM vs rev-share, and who carries the risk.
- [Influencer ROI for apps: your cost per paying customer](https://whichpost.app/cost-per-paying-customer-from-creators): There's no universal benchmark. Work out your own limit from what a customer is worth and your payback window, then judge each creator against it.
- [Is my influencer worth it? Rebook, test again or pause](https://whichpost.app/should-you-rebook-an-influencer): A simple rule for creator decisions: compare each creator's cost per paying customer, as a range, with your limit. With a worked example.
- [Which clippers brought paying customers? Measure it](https://whichpost.app/how-to-measure-a-clipping-campaign): See which clippers brought paying customers, not just views. Connect Stripe or RevenueCat read-only, no links. Steps, a worked example and a free campaign check.
- [How to check if TikTok views are fake or bought](https://whichpost.app/how-to-tell-if-views-are-bought): Signs a post's views were bought, typical likes per 1,000 views from our own reading, and a free check for TikTok, Reels and YouTube Shorts. No sign-in.
- [Creator attribution for subscription apps: trial to paid](https://whichpost.app/creator-attribution-for-subscription-apps): How subscription apps can credit creator posts with trials and paying subscribers, handle trial delays and renewals, and decide sooner.
- [Creator campaign reports for clients: what to include](https://whichpost.app/creator-campaign-report-for-clients): For agencies running creator and clipping campaigns for apps: what a client report should show beyond views, and how to recommend next month.
- [Creator marketing glossary: CPM, attribution, rev-share](https://whichpost.app/creator-marketing-glossary): Plain-language definitions of the terms in creator deals and reports: CPM, flat fee, rev-share, attribution, cost per paying customer and more.
- [TikTok and YouTube Shorts engagement rate benchmarks 2026](https://whichpost.app/data/short-video-engagement-rate-2026): Likes and comments per 1,000 views on public TikTok videos and YouTube Shorts, by account size, read by us. With sample sizes, method, gaps and a CSV.
- [How many likes per 1,000 views is good? TikTok and Shorts](https://whichpost.app/data/likes-per-1000-views): Typical likes per 1,000 views on TikTok and YouTube Shorts by how many views a post got, plus engagement rate and shares. Our own readings, with n.

## Free tools
- [Free calculators for paid creator posts](https://whichpost.app/tools): Free, instant calculators for apps that pay creators: what a post must bring to pay off, and whether a flat fee, CPM or rev-share deal costs less. No sign-in.
- [Influencer ROI calculator for apps: break-even per post](https://whichpost.app/tools/influencer-roi-calculator): Free influencer ROI calculator for apps: how many paying customers a creator post must bring to pay off, its cost per 1,000 views, and the most you could pay. Flat fee, CPM or rev-share.
- [Creator CPM calculator: CPM vs flat fee vs rev-share](https://whichpost.app/tools/creator-cpm-calculator): Free creator CPM calculator: compare what the same TikTok, Instagram or YouTube Shorts campaign costs on a flat fee, CPM or rev-share, where each is cheaper, and who carries the risk.
- [TikTok and YouTube Shorts engagement rate calculator](https://whichpost.app/tools/engagement-rate-calculator): Free engagement rate calculator for TikTok and YouTube Shorts: enter a post's views, likes, comments and shares and see how it compares with typical posts.
- [Free clipping campaign check: which clippers to keep](https://whichpost.app/tools/campaign-check): Paste a Content Rewards campaign link or up to 30 public post links. See how concentrated the views are, the cost per 1,000 views, engagement per creator and who to rebook, test again or pause. Free, no sign-in.
- [Free fake views checker: TikTok, Reels, YouTube Shorts](https://whichpost.app/tools/bought-views-check): Paste a public TikTok, Reels or YouTube Shorts link: see if its views look bought, from its engagement now and its view curve over 48 hours. Free, no sign-in.
- Short link https://whichpost.app/check opens the free clipping campaign check.

## Buyer questions and the page that answers each
- Which TikTok creator brought paying users to my app, without links or promo codes? → https://whichpost.app/which-creator-brought-paying-customers
- How do we measure which creators in our clipping campaign brought paying customers? → https://whichpost.app/how-to-measure-a-clipping-campaign
- What tool attributes RevenueCat subscriptions to the influencers and UGC creators we pay? → https://whichpost.app/revenuecat-creator-attribution
- How can we track influencer sales without promo codes when customers pay through Stripe? → https://whichpost.app/track-influencer-sales-without-promo-codes
- How much should an app pay per 1,000 views in a clipping campaign? → https://whichpost.app/how-to-pay-ugc-creators
- How can I check if a creator's views are fake or bought before I pay? → https://whichpost.app/tools/bought-views-check
- Which creators in my clipping campaign should I keep paying? → https://whichpost.app/tools/campaign-check
- Which influencer brought me customers? → https://whichpost.app/which-creator-brought-paying-customers
- How do I track TikTok influencer sales? → https://whichpost.app/track-influencer-sales-without-promo-codes
- Is my influencer worth it? → https://whichpost.app/should-you-rebook-an-influencer
- How do I measure influencer ROI for an app? → https://whichpost.app/cost-per-paying-customer-from-creators
- How do I track UGC creator results? → https://whichpost.app/which-creator-brought-paying-customers
- Is a clipping campaign worth it? → https://whichpost.app/clipping-campaign-roi
- How do I know if TikTok marketing is working for my app? → https://whichpost.app/track-tiktok-installs-without-link
- What's the best influencer attribution tool? → https://whichpost.app/creator-attribution-alternatives

## Pricing (USD, updated 2026-10-11)
- Creator Audit: $199 once. One campaign, analyzed and explained.
- Monitoring: $149 per month. For apps working with 10 or more creators a month.
- Studio: $349 per month. For studios with several products.
- Agency: $449 per month (or $129 per campaign report). For agencies that report campaign results to clients.

## Connect an assistant (MCP)
- Public MCP server, no sign-in: https://whichpost.app/mcp/public (what WhichPost is, how it works, pricing, questions, a fit check and a simulated sample report)
- Signed-in MCP server: https://whichpost.app/mcp (OAuth; a team's own reports with ranges and decisions, one workspace per connection)
- Server card: https://whichpost.app/mcp/server-card
- [Use WhichPost in Claude and ChatGPT](https://whichpost.app/claude-and-chatgpt): how to connect in Claude, Claude Code and ChatGPT, example questions, and what a connected assistant can and can't see.

## For agents and developers
- [Full text](https://whichpost.app/llms-full.txt): what WhichPost is, how it works, pricing, questions and privacy in one file
- [Public API (OpenAPI 3.1)](https://whichpost.app/api/openapi.json): pricing, languages, waitlist
- Public pages may be quoted and summarised with a link. Reports and workspaces are private.
- Public pages may be used to train AI models; reports, results and anything behind sign-in may not: https://whichpost.app/terms#ai
- Contact: support@whichpost.app

## Optional
- [Languages](https://whichpost.app/api/locales): English, German, Spanish (Spain), French, Hungarian, Italian, Dutch, Polish, Portuguese (Brazil), Arabic, Japanese, Chinese (Simplified); other language prefixes are machine-assisted and may lag