Facebook Ads Insights Tool

Facebook Ads Cost Per App Install Benchmarks for Legal in United Kingdom

See how your app install costs compare. Explore mobile acquisition cost benchmarks by industry, region, and platform

Cost Per App Install for Legal in United Kingdom

October 2024 - October 2025

Insights

Detailed observation of presented data

Main takeaways

  • No monthly data points are available for cost per app install in Legal, Great Britain during the period provided, so a direct country/industry benchmark cannot be computed. The global baseline is summarized below for directional context.
  • Globally, the median cost per app install averaged 12.67 over the last 12 months (median 11.44), ranging from a low of 6.20 in October 2024 to a high of 26.21 in June 2025.
  • The global trend rose sharply from October 2024 to September 2025, up approximately 271% from first to last month.
  • Volatility is high: the average month-to-month absolute change was about 61%, with a standard deviation of roughly 6.05 (coefficient of variation ~48%).
  • Seasonal patterns show an uptick in November (Q4), a pronounced jump in June, and another climb into September.

What this analysis covers

This analysis looks at cost per app install trends for industry Legal and target country Great Britain compared to the global trend. Because the selected dataset contains no observations for the period, the comparison focuses on the global baseline to provide context. The analysis is based on $3B worth of advertising data from our dataset, which provides strong directional benchmarks.

Selected dataset (Legal, Great Britain)

  • Data availability: No monthly observations were provided for the selected country and industry, so averages, highs/lows, and month-to-month changes cannot be calculated.
  • Relative positioning: With no local data, we cannot determine whether Great Britain Legal is above market, below average, or in line with overall trends.

Global baseline highlights

  • Average and median: The global average cost per app install was 12.67; the median was 11.44 across 12 months.
  • Highs and lows: The lowest month was October 2024 at 6.20; the highest was June 2025 at 26.21.
  • Trend over time: From October 2024 (6.20) to September 2025 (22.99), the metric increased by about 271%.
  • Notable spikes/dips:
  • Oct → Nov: +130.6% (6.20 to 14.28)
  • May → Jun: +151.2% (10.43 to 26.21) — the steepest monthly surge
  • Jun → Jul: −52.9% (26.21 to 12.35) — the sharpest monthly decline
  • Aug → Sep: +53.3% (15.00 to 22.99)

Seasonality and volatility

  • Q4 pattern: Costs elevated in November relative to October and December, consistent with heavier auction pressure during peak shopping periods.
  • Q2/Q3 ramp: After relatively moderate April–May levels, June spiked to the annual high, followed by a pullback in July and a renewed rise through September.
  • Volatility: The average month-to-month absolute change was approximately 61%, indicating a highly variable market environment across the year.

Comparison to the global trend

  • Legal in Great Britain: No selected_data points were available, so a quantitative comparison to the global baseline (above market, below average, or in line) cannot be determined for this period.
  • Use the global baseline as directional context until local monthly data is available for Legal in Great Britain.

Understanding cost per app install benchmarks on Facebook Ads in industry Legal and Great Britain helps advertisers make more efficient budget and creative choices.

Understanding the Data

Insights & analysis of Facebook advertising costs

Facebook advertising costs vary based on many factors including industry, target audience, ad placement, and campaign objectives. In the Legal industry, Facebook ad costs can be influenced by seasonal trends and market competition. For campaigns targeting United Kingdom, advertisers experience moderate to high costs with strong performance in urban areas. Different campaign objectives lead to varying costs based on how Facebook optimizes for your specific goals. The data shown represents median values across multiple campaigns, and individual results may vary based on ad quality, audience targeting, and campaign optimization.

Why we use median instead of average

We use the median CTR because the underlying distribution of click-through rates is highly skewed, with a small share of campaigns achieving extremely high CTRs. These outliers can inflate a simple average, making it less representative of what most advertisers actually experience. By using the median—which sits at the midpoint of all campaigns—we provide a more rigorous and realistic benchmark that reflects the true underlying data model and helps you set attainable performance expectations.

Key Factors Affecting Facebook Ad Costs

  • Competition within your selected industry and audience demographics
  • Ad quality and relevance score – higher quality ads can lower costs
  • Campaign objective and bid strategy
  • Timing and seasonality – costs often increase during holiday periods
  • Ad placement (News Feed, Instagram, Audience Network, etc.)

Note: This data represents industry median values and benchmarks. Your actual costs may vary based on specific targeting, ad creative quality, and campaign optimization.

Optimize Smarter with Superads

Improve your Facebook ad performance

Instant performance insights – See which ads, audiences, and creatives drive results.

Data-driven creative decisions – Spot patterns to improve ROAS.

Effortless reporting – No spreadsheets, just clear insights.

Get Started for free →

The data behind the benchmarks

All data is sourced from over $3B in Facebook ad spend, collected across thousands of ad accounts that use Superads daily to analyze and improve their campaigns. Every data point is fully anonymized and aggregated—no individual advertiser is ever exposed.

This dataset updates frequently as new ad data flows in. It will only get bigger and better.

United Kingdom Advertising Landscape

National Holidays

Jan 1New Year's Day
Jan 22nd January (Scotland)
Apr 18Good Friday
Apr 21Easter Monday
May 5Early May Bank Holiday
May 26Spring Bank Holiday
Aug 25Summer Bank Holiday
Dec 25Christmas Day
Dec 26Boxing Day

Key Shopping Season

Late November (Black Friday/Cyber Monday surge), Late December (Christmas & Boxing Day promotions), Early May holiday weekend promotions

Potential Advertising Impact

CPM and CPC might increase around early May and late August bank holidays as people engage in leisure travel or retail browsing. During Black Friday/Cyber Monday, retail CPMs could spike sharply in fashion, electronics, and online shopping. Late December typically sees peak CPMs, with e‑commerce budgets needing early ramp-up.

What's a good CPI for iOS vs Android in 2025?

iOS CPIs often range from $2 to $5 or more. Android is usually cheaper, between $1 and $3. Your CPI will depend on geo, creative, and optimization goal.

Why is my app install cost higher in some countries?

Some regions like the US, UK, and Canada have higher competition and stricter privacy regulations, which drive up costs. Countries with lower purchasing power typically have cheaper CPIs.

What creatives drive the lowest CPI on Facebook?

Short videos showing app benefits, UGC-style content, and localized messaging tend to perform best. Clear CTAs and fast-paced visuals help lower your CPI.

Should I optimize for installs or in-app actions?

Optimizing for installs gets volume, but optimizing for actions like signups or purchases brings higher quality users. It depends on your goals and how much post-install behavior matters.

How do I lower CPI without tanking app retention or quality?

Align your creative with the app experience, avoid misleading ads, and exclude users who already installed. You can also test lookalike audiences based on high-quality users, not just all installers.