# Does X work? Tactic-level experiment evidence pages Source: Lazyweb Research 17 data-backed questions on Does X work? Tactic-level experiment evidence pages. HTML: https://www.lazyweb.com/research/category/does-x-work-tactic-level-experiment-evidence-pages Markdown: https://www.lazyweb.com/research/category/does-x-work-tactic-level-experiment-evidence-pages.md ## Questions - [Do Apps That Add Social Proof to Their Screens Keep It?](https://www.lazyweb.com/research/do-apps-that-add-social-proof-keep-it) Across 29 tracked screens where Lazyweb Research detected social proof being added, 29 of 29 (100%) still had it in later captures, with zero detected removals [1][2]. Social proof is the stickiest o… - [How Many Detected Experiments Touch Social Proof, and What Changed?](https://www.lazyweb.com/research/how-many-experiments-touch-social-proof) Lazyweb Research detected 120 before/after experiments across 62 companies whose diff mentions social proof — about 2.5% of the 4,814-experiment corpus [1][2]. Separately, 48 experiments are annotate… - [Does Adding Social Proof to the Hero Actually Get Tested?](https://www.lazyweb.com/research/does-social-proof-in-the-hero-get-tested) Yes, but it's comparatively rare: of 405 hero-area experiments Lazyweb Research detected, 18 also touch social proof [1][2]. The hero is the single most-tested page area (405 experiments), yet social… - [Do 'Limited Time Offer' Countdown Timers Get Rolled Back?](https://www.lazyweb.com/research/do-limited-time-countdown-offers-get-rolled-back) Rarely: of 58 tracked screens where an urgency element was added, 56 (97%) still had it in later captures and only 2 removed it [1]. Across 317 experiments that mention urgency or countdowns, additio… - [How Many Detected Experiments Touch Urgency or Countdown Timers?](https://www.lazyweb.com/research/how-many-experiments-touch-urgency-countdowns) Lazyweb Research detected 317 before/after experiments across 97 companies that mention urgency or countdowns — about 6.6% of the 4,814-experiment corpus [1][2]. Within that, 38 experiments mention a… - [Does Price Anchoring Get Reversed Once Companies Test It?](https://www.lazyweb.com/research/does-price-anchoring-get-reversed-in-experiments) Almost never: of 43 tracked screens where an anchoring element was added, 42 (98%) still had it in later captures, with just 1 detected removal [1]. Across 279 experiments that mention anchoring, add… - [How Many Detected Experiments Touch Price Anchoring, and What Changed?](https://www.lazyweb.com/research/how-many-experiments-touch-price-anchoring) Lazyweb Research detected 279 before/after experiments across 136 companies that mention price anchoring — about 5.8% of the 4,814-experiment corpus [1][2]. It's practiced by more distinct companies… - [Do Companies That Change Their Free Trial Keep the Change?](https://www.lazyweb.com/research/do-companies-that-shorten-free-trials-keep-them) Trial changes are the most reversed of the tactics we track: of 81 screens where a trial-related element was added, 69 (85%) kept it and 12 later removed it [1]. Across 517 experiments that mention t… - [How Many Detected Experiments Touch Free Trials, and What Changed?](https://www.lazyweb.com/research/how-many-experiments-touch-trial-length) Lazyweb Research detected 517 before/after experiments across 140 companies that mention trials — about 10.7% of the 4,814-experiment corpus and the third-most-touched tactic [1][2]. Additions lead r… - [How Many Detected Experiments Change CTA Copy, and What Do Apps Rewrite It To?](https://www.lazyweb.com/research/how-many-experiments-touch-cta-copy) Lazyweb Research detected 561 before/after experiments across 201 companies that change CTA copy — about 11.7% of the 4,814-experiment corpus, and the widest company reach of any button-level tactic… - [Which Growth Tactics Do Companies Actually A/B Test the Most?](https://www.lazyweb.com/research/which-experiment-tactics-get-tested-most) Across 4,814 before/after UI experiments Lazyweb Research detected (362 companies, 1,358 canonical screens), discount badges lead at 1,133 mentions, followed by CTA copy (561), trials (517), and urge… - [Do Companies That Add Discount Badges to Their Paywall Keep Them?](https://www.lazyweb.com/research/do-companies-keep-discount-badges-after-testing-them) Across 162 tracked app screens where Lazyweb Research detected a discount element being added, 147 (91%) still had it in later captures and only 15 showed a later detected removal.[1] Discounts are a… - [Should You Add or Remove a Discount Badge? What Companies Actually Do When They Iterate?](https://www.lazyweb.com/research/should-you-add-or-remove-a-discount-badge-what-companies-do) Among the discount-touching experiments Lazyweb Research could classify by direction, 238 added a discount versus 68 that removed one — roughly 3.5 additions per removal.[1] Discounts are the most-to… - [Do Companies Keep Hero Image and Video Swaps After Testing Them?](https://www.lazyweb.com/research/do-companies-keep-hero-media-swaps-after-testing) Across Lazyweb's 4,814-experiment corpus, 307 detected experiments (6%) swapped hero media — an image, video, illustration, or animation — spanning 122 companies.[1][2] Among classifiable changes, ad… - [Which Page Areas Get Tested Most — And Where Does the Hero Rank?](https://www.lazyweb.com/research/how-many-experiments-touch-hero-media-swaps) Across the 4,814 detected experiments Lazyweb Research tracks, the hero is the most-annotated change area at 405 experiments, ahead of offer (281), pricing (229), CTA (225), and value props (178).[1]… - [Do Companies Remove Pricing Tiers — and How Often Is It Tested?](https://www.lazyweb.com/research/how-many-experiments-touch-pricing-tier-removal) Across Lazyweb's 4,814-experiment corpus, 117 detected experiments (2%) involve removing or dropping a pricing tier or plan, spanning 83 companies.[1][2] Real examples collapse a multi-tier menu into… - [Do Companies Remove Their Free Plan? What the Detected Experiments Show?](https://www.lazyweb.com/research/how-many-experiments-touch-free-plan-changes) Only 10 detected experiments across 8 companies in Lazyweb's 4,814-experiment corpus touch a 'free plan' or 'free tier' — and roughly half are strengthening the free plan, not removing it.[1] With a…