# SpinProof > Brand Lift that can’t be spun. SpinProof runs independent brand lift studies with verified people, a matched control and a plan locked before fieldwork. Every study comes with an Evidence File that traces each number back to a raw answer. SpinProof is an independent brand lift measurement service based in the UK. It measures whether an advertising campaign changed what people think of a brand (awareness, ad recall, consideration, preference) by comparing people who saw the campaign with a matched control group who didn’t. Three things set it apart from platform brand lift studies and conventional research agencies: - **Verified people, not assumed audiences.** Respondents are recruited through the channels they already use (Meta ads into a screener, QR codes in or beside the media, publisher lists, panel top-ups and an opted-in panel) and pass fraud, attention, duplicate and decoy-ad checks. - **A plan locked before fieldwork.** The KPI, sample size, sub-groups and analysis are hashed and timestamped before the first invite, so nobody can pick a flattering result afterwards. - **The Evidence File.** Every reported number traces back to the raw answers, the locked plan, the agent log and the researcher sign-offs. That is what “brand lift that can’t be spun” means. SpinProof works in any channel, including TV, out of home, audio, retail media and sponsorship, which platform studies can’t measure. It focuses on airlines and retail. ## Product - [How it works](https://spinproof.live/how-it-works): A SpinProof study locks its plan before fieldwork, recruits verified people through the channels they already use, proves who saw the campaign, compares them with a matched control, and releases the result with an Evidence File. Agents do the repetitive work, deterministic code does the statistics and a researcher signs three gates. - [The Evidence File](https://spinproof.live/evidence-file): The Evidence File is the audit trail that ships with every SpinProof study. It proves how the study was designed, who answered, who was excluded and why, what every agent and researcher did, and where each reported number came from. It is always included with the raw data and crosstabs, never available only on request. - [Pricing](https://spinproof.live/pricing): Three study types with published prices. - [Book a pilot](https://spinproof.live/pilot): Enquiries go to hello@spinproof.live. ## Prices - **Creative Test** (£2,500 per creative): Will this ad move people before we buy media? 300 verified people across exposed and control cells, randomised inside the survey, before the media buy. Plus £950 for each extra creative, up to four. - **Campaign Uplift** (£4,950 per study in a shared survey wave): Did the campaign shift perceptions in market? 600 verified people, proven exposure against a matched control, and a live read from week one. £9,500 standalone. Harder-to-reach audiences are quoted. - **Brand Tracker** (£1,750 a month per brand and market): Is the brand building between campaigns? 300 verified people a month, plus share of search, competitor ad activity and AI answer visibility. On a 12-month term (£21,000 a year). ## Industries - [Brand lift studies for airlines](https://spinproof.live/industries/airlines): Independent brand lift for airlines: prove whether route launches, cabin campaigns and sales moved consideration against your competitors, with verified flyers and an Evidence File. - [Brand lift studies for retail and retail media](https://spinproof.live/industries/retail): Independent brand lift for retailers and brands buying retail media: measure what campaigns changed in shoppers’ minds, separately from the network that sold the ads. ## Articles - [What is brand lift? A plain-English guide for brands](https://spinproof.live/learn/what-is-brand-lift): Brand lift explained: how it is measured, the metrics that matter, absolute vs relative lift, and what makes a brand lift result worth trusting. - [Why most brand lift studies can’t be trusted, and what to ask for instead](https://spinproof.live/learn/why-brand-lift-studies-cant-be-trusted): Three reasons brand lift numbers get spun: untrusted respondents, unproven exposure and unevidenced results. Plus five questions to ask any vendor. - [AI bots are taking your brand surveys. Here’s what that means](https://spinproof.live/learn/ai-bots-in-brand-surveys): AI agents now pass 99.8% of survey attention checks and panel fraud runs at 21% to 38%. What that means for brand research, and how to protect it. - [Platform brand lift vs independent brand lift: what’s the difference?](https://spinproof.live/learn/platform-vs-independent-brand-lift): When a platform’s own brand lift study is enough, when you need independent measurement, and what the sample-size and spend thresholds really mean. - [Retail media is measured by the people who sell it. How to measure its brand effect](https://spinproof.live/learn/retail-media-brand-effect): Retail media is worth £3.7bn in the UK, but most networks report last-touch ROAS. How to measure what retail media does to the brand, independently. ## How-to guides - [How to read a brand lift report in ten minutes](https://spinproof.live/learn/how-to-read-a-brand-lift-report): An eight-step checklist for reading any brand lift report: the KPI, the sample, the full-sample result, absolute lift, ranges, exposure, exclusions and data. - [How to size a brand lift study: sample size and minimum detectable lift](https://spinproof.live/learn/how-to-size-a-brand-lift-study): How many people a brand lift study needs, how to work out the smallest lift it can detect, and a ready-reckoner for common baselines. - [How to calculate cost per person lifted](https://spinproof.live/learn/how-to-calculate-cost-per-person-lifted): Turn brand lift into money: calculate persons lifted and cost per person lifted, carry the 95% range through, and compare campaigns fairly. - [How to measure brand lift for out-of-home, print and other offline campaigns](https://spinproof.live/learn/how-to-measure-brand-lift-for-offline-campaigns): Step by step: how to measure the brand effect of outdoor, transport, print, venue, audio and event advertising that platform lift tools can’t see. - [How to measure whether an airline route launch campaign worked](https://spinproof.live/learn/how-to-measure-an-airline-route-launch): A step-by-step guide for airlines: define the route audience, fix the KPI, name competitors, prove exposure and turn lift into cost per person lifted. ## Reference - [Glossary](https://spinproof.live/glossary): 18 brand lift terms defined in plain English. - [FAQ](https://spinproof.live/faq): Short answers about method, data quality, timing and cost. - [Full text for language models](https://spinproof.live/llms-full.txt): Every page above as one Markdown file. ## Optional - [Demo client portal](https://spinproof.live/demo): Interactive demo with two fictional airlines and illustrative data. Not indexed; figures are not real results. - [Privacy](https://spinproof.live/privacy): No tracking cookies or analytics on the website.