The words on the button matter more than its color. Test these categories:<\/p>\n\n\n\n Where on the page the CTA appears:<\/p>\n\n\n\n Test CTAs on smart banners directly:<\/p>\n\n\n\n Test CTAs in onboarding and campaign emails:<\/p>\n\n\n\n Test CTAs on in-app prompts (upgrade, share, invite):<\/p>\n\n\n\n Typical results:<\/p>\n\n\n\n Urgency typically increases CTR by 10-20% but only when the urgency is real. Fake urgency ("only 3 left!" when there are unlimited) erodes trust and reduces long-term conversion.<\/p>\n\n\n\n When there's a concrete value offer, stating it in the CTA outperforms generic text by 30-50%.<\/p>\n\n\n\n CTR alone can be misleading. Track the full funnel:<\/p>\n\n\n\n A CTA with higher CTR but lower activation rate might produce worse overall results than one with moderate CTR but higher quality installs.<\/p>\n\n\n\n![\"Tolinku](\"https:\/\/tolinku.com\/blog\/wp-content\/uploads\/2026\/03\/platform-ab-tests.png\")
\nThe A\/B tests list page showing test names, status, types, and variant counts.<\/em><\/p>\n\n\n\nWhat to Test<\/h2>\n\n\n\n
CTA Text<\/h3>\n\n\n\n
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\n Category<\/th>\n Examples<\/th>\n Best For<\/th>\n<\/tr>\n<\/thead>\n \n Action + benefit<\/td>\n "Start Saving Time"<\/td>\n Productivity apps<\/td>\n<\/tr>\n \n Direct action<\/td>\n "Download Free"<\/td>\n Free apps<\/td>\n<\/tr>\n \n Low commitment<\/td>\n "Try It Free"<\/td>\n Apps with trials<\/td>\n<\/tr>\n \n Social proof<\/td>\n "Join 2M+ Users"<\/td>\n Social and community apps<\/td>\n<\/tr>\n \n Value proposition<\/td>\n "Get $10 Off"<\/td>\n E-commerce, promo campaigns<\/td>\n<\/tr>\n \n Urgency<\/td>\n "Claim Your Offer"<\/td>\n Limited-time promotions<\/td>\n<\/tr>\n \n Curiosity<\/td>\n "See What's Inside"<\/td>\n Content and media apps<\/td>\n<\/tr>\n<\/tbody><\/table><\/figure>\n\n\n\n CTA Placement<\/h3>\n\n\n\n
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\n Placement<\/th>\n Click Rate<\/th>\n Notes<\/th>\n<\/tr>\n<\/thead>\n \n Above the fold (hero)<\/td>\n Highest<\/td>\n Visible immediately<\/td>\n<\/tr>\n \n Sticky bottom bar<\/td>\n High<\/td>\n Always visible during scroll<\/td>\n<\/tr>\n \n After social proof section<\/td>\n Medium-high<\/td>\n User sees evidence first<\/td>\n<\/tr>\n \n After features section<\/td>\n Medium<\/td>\n User understands the product<\/td>\n<\/tr>\n \n Multiple (hero + bottom)<\/td>\n Highest total<\/td>\n Different users click at different points<\/td>\n<\/tr>\n<\/tbody><\/table><\/figure>\n\n\n\n CTA Design<\/h3>\n\n\n\n
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\n Variable<\/th>\n Variants to Test<\/th>\n<\/tr>\n<\/thead>\n \n Button size<\/td>\n Standard vs. large (full-width on mobile)<\/td>\n<\/tr>\n \n Color contrast<\/td>\n High contrast vs. brand color<\/td>\n<\/tr>\n \n Shape<\/td>\n Rounded vs. squared<\/td>\n<\/tr>\n \n Animation<\/td>\n Static vs. subtle pulse<\/td>\n<\/tr>\n \n Supporting text<\/td>\n With subtitle vs. without<\/td>\n<\/tr>\n<\/tbody><\/table><\/figure>\n\n\n\n Implementation<\/h2>\n\n\n\n
Smart Banner CTA Testing<\/h3>\n\n\n\n
function SmartBanner({ experiment }) {\n const variant = useExperimentVariant(experiment.id);\n\n return (\n <div className="smart-banner">\n <div className="banner-content">\n <img src={appIcon} alt="App icon" \/>\n <div>\n <strong>{appName}<\/strong>\n <span>{variant.subtitle || 'Free on the App Store'}<\/span>\n <\/div>\n <\/div>\n\n <a\n href={variant.deepLink || appStoreUrl}\n className={`cta-button cta-${variant.style || 'default'}`}\n onClick={() => trackCTAClick(experiment.id, variant.id)}\n >\n {variant.ctaText}\n <\/a>\n <\/div>\n );\n}\n<\/code><\/pre>\n\n\n\nEmail CTA Testing<\/h3>\n\n\n\n
async function buildEmailCTA(userId, experimentId) {\n const variant = assignVariant(userId, experimentId);\n const deepLink = await generateTrackableLink(variant.destination, {\n experimentId,\n variantId: variant.id,\n source: 'email',\n });\n\n return {\n text: variant.ctaText,\n url: deepLink,\n style: variant.buttonStyle,\n subtitle: variant.subtitle,\n };\n}\n<\/code><\/pre>\n\n\n\nIn-App CTA Testing<\/h3>\n\n\n\n
function UpgradePrompt({ experiment }) {\n const variant = useExperimentVariant(experiment.id);\n\n return (\n <Card>\n <Heading>{variant.headline}<\/Heading>\n <Text>{variant.description}<\/Text>\n\n <Button\n style={variant.buttonStyle}\n onPress={() => {\n trackCTAClick(experiment.id, variant.id);\n navigation.navigate('Upgrade');\n }}\n >\n {variant.ctaText}\n <\/Button>\n\n {variant.subtitle && (\n <Text style={styles.ctaSubtitle}>{variant.subtitle}<\/Text>\n )}\n <\/Card>\n );\n}\n<\/code><\/pre>\n\n\n\nExperiment Examples<\/h2>\n\n\n\n
Experiment 1: Install Button Text<\/h3>\n\n\n\n
const installButtonExperiment = {\n id: 'install_button_v4',\n variants: [\n { id: 'download_free', ctaText: 'Download Free', weight: 25 },\n { id: 'try_free', ctaText: 'Try It Free', weight: 25 },\n { id: 'get_started', ctaText: 'Get Started', weight: 25 },\n { id: 'open_app', ctaText: 'Open in App', weight: 25 },\n ],\n primaryMetric: 'app_install',\n secondaryMetric: 'click_through_rate',\n};\n<\/code><\/pre>\n\n\n\n\n
Experiment 2: Urgency in CTA<\/h3>\n\n\n\n
const urgencyExperiment = {\n id: 'urgency_cta_v2',\n variants: [\n { id: 'no_urgency', ctaText: 'Get Your Discount', subtitle: null, weight: 50 },\n { id: 'with_urgency', ctaText: 'Claim Your Discount', subtitle: 'Offer ends in 24 hours', weight: 50 },\n ],\n primaryMetric: 'click_through_rate',\n};\n<\/code><\/pre>\n\n\n\nExperiment 3: CTA with Value<\/h3>\n\n\n\n
const valueCtaExperiment = {\n id: 'value_cta_v1',\n variants: [\n { id: 'generic', ctaText: 'Sign Up', weight: 33 },\n { id: 'value', ctaText: 'Get $10 Free', weight: 33 },\n { id: 'action_value', ctaText: 'Claim Your $10', weight: 34 },\n ],\n primaryMetric: 'signup_completed',\n};\n<\/code><\/pre>\n\n\n\nTracking CTA Performance<\/h2>\n\n\n\n
Click-Through Rate<\/h3>\n\n\n\n
function trackCTAClick(experimentId, variantId) {\n analytics.track('cta_clicked', {\n experimentId,\n variantId,\n timestamp: Date.now(),\n device: getDeviceType(),\n source: getTrafficSource(),\n });\n}\n\n\/\/ Calculate CTR\nasync function calculateCTR(experimentId, variantId) {\n const impressions = await countEvents('cta_viewed', { experimentId, variantId });\n const clicks = await countEvents('cta_clicked', { experimentId, variantId });\n\n return {\n impressions,\n clicks,\n ctr: (clicks \/ impressions * 100).toFixed(2) + '%',\n };\n}\n<\/code><\/pre>\n\n\n\nBeyond CTR: Full Funnel<\/h3>\n\n\n\n
async function fullFunnelAnalysis(experimentId) {\n for (const variant of getVariants(experimentId)) {\n const views = await countEvents('cta_viewed', { variantId: variant.id });\n const clicks = await countEvents('cta_clicked', { variantId: variant.id });\n const storeVisits = await countEvents('app_store_visited', { variantId: variant.id });\n const installs = await countEvents('app_installed', { variantId: variant.id });\n const activations = await countEvents('user_activated', { variantId: variant.id });\n\n console.log(variant.id, {\n ctr: (clicks \/ views * 100).toFixed(2) + '%',\n storeConversion: (storeVisits \/ clicks * 100).toFixed(2) + '%',\n installRate: (installs \/ storeVisits * 100).toFixed(2) + '%',\n activationRate: (activations \/ installs * 100).toFixed(2) + '%',\n overallConversion: (activations \/ views * 100).toFixed(3) + '%',\n });\n }\n}\n<\/code><\/pre>\n\n\n\nCTA Copy Rules<\/h2>\n\n\n\n
What Works<\/h3>\n\n\n\n
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What Doesn't Work<\/h3>\n\n\n\n