📱 TikTok vs Instagram Reels for UGC Campaigns: Which Drives Better ROI?

🥊 The Eternal Debate

Across 4,200 Peddlum campaigns we ran a head-to-head: same product, same creator brief, equal budget on TikTok and Instagram Reels. The results challenge both camps and reward the people willing to look at the data instead of arguing tribal preferences.

Spoiler: the answer depends on what you sell, who you sell to, and what stage of the funnel you are running.

📊 Top-Line Numbers

Aggregated across all verticals:

• Avg CPM — TikTok: $4.20 / Reels: $7.10

• Avg CTR — TikTok: 1.8% / Reels: 2.4%

• Avg CVR — TikTok: 2.1% / Reels: 3.4%

• Avg AOV — TikTok: $34 / Reels: $49

• Effective CPA — TikTok: $12.50 / Reels: $14.80

• Comments per 1K views — TikTok: 18 / Reels: 7

• Save rate — TikTok: 4.2% / Reels: 8.1%

• Share rate — TikTok: 3.1% / Reels: 1.4%

• Avg watch time (15s video) — TikTok: 11.2s / Reels: 9.7s

🔍 What the Numbers Mean

• TikTok wins on CPM and reach — cheaper to get views, period

• Reels wins on conversion — higher-intent audience, higher AOV

• Comments compound on TikTok — long after a post stops being served, comments keep the algorithm engaged

• Reels closes faster — shorter window from view to sale

• TikTok wins discovery — hashtag and sound exploration drives long-tail views

• Reels wins retention — Story integration keeps brand top-of-mind

• TikTok wins shares — virality is more native

• Reels wins saves — content gets bookmarked for later purchase

📂 Vertical-by-Vertical Breakdown

The platform that wins depends heavily on what you are selling:

• Software & SaaS — Reels wins (62% of campaigns)

• Templates & ebooks — TikTok wins (71% of campaigns)

• High-ticket courses ($200+) — Reels wins (78%)

• Impulse digital products ($9–29) — TikTok wins (84%)

• B2B tools — Reels wins (67%)

• Lifestyle & wellness apps — TikTok wins (58%)

• Design assets & fonts — Reels wins (54%)

• AI tools & prompt packs — TikTok wins (69%)

• Productivity templates (Notion, Figma) — Reels wins (61%)

• Marketing courses — Reels wins (74%)

🎯 The Boring Truth

The right answer is almost always both. The optimal mix in our data: 60% TikTok / 40% Reels for top-of-funnel, then 100% Reels for retargeting.

Single-platform strategies look efficient on a spreadsheet but leave revenue on the table in practice. The brands that lock themselves to one platform invariably lose share when the algorithm shifts.

👥 Audience Differences

The platforms attract different buyers:

• TikTok median user age — 24, skews to discovery and entertainment

• Reels median user age — 31, skews to lifestyle and aspiration

• TikTok purchase intent — lower upfront, higher virality

• Reels purchase intent — higher upfront, lower virality

• TikTok male/female split — 41/59

• Reels male/female split — 47/53

• TikTok shopping behavior — impulse-driven, mobile-first

• Reels shopping behavior — research-driven, often saves for later

🎬 Content Format Differences

The same video does NOT perform equally on both platforms. Each has its own grammar:

• TikTok — sound-driven, fast cuts, captions essential, on-trend sounds win

• Reels — aesthetic-driven, slower pacing, evergreen sounds, "polished casual" wins

Adapt the same UGC for each platform:

• TikTok: lean into the trending sound, faster cuts, more text overlay

• Reels: smoother transitions, less text, more "lifestyle integration"

🌐 What About YouTube Shorts and X?

• YouTube Shorts — the dark horse. Strong CPM, weak attribution. Best for evergreen content. Long-tail performance can rival TikTok over 90 days.

• X (Twitter) — best for B2B SaaS and developer tools, weak everywhere else. Surprisingly strong for AI tools and indie maker products.

• LinkedIn — surprisingly strong for high-ticket B2B; underrated. Reaches decision-makers other platforms cannot.

• Pinterest — quietly excellent for templates, planners, design products. Long content shelf life, evergreen traffic.

• Snapchat Spotlight — niche but cheap CPMs in younger demos

Our recommendation: ladder into Shorts only after TikTok + Reels are dialed in.

💡 Tactical Recommendations

If you only run on one platform:

• Selling under $30 → TikTok

• Selling $30–200 → Test both, lean Reels

• Selling $200+ → Reels primary, TikTok for awareness

• B2B SaaS → Reels primary, X secondary

• Design assets → Reels primary, Pinterest secondary

• Impulse digital → TikTok primary, Shorts secondary

If you run on multiple platforms (recommended):

• Adapt the creative for each platform

• Track per-platform CAC separately

• Allocate budget weekly based on rolling 7-day performance

• Whitelist the top 20% of organic UGC as paid on its native platform

📊 A Real Multi-Platform Campaign Example

Notion template at $29:

• Total budget: $2,400 across 60 days

• TikTok allocation: $1,440 (60%)

• Reels allocation: $960 (40%)

• TikTok results: 380 sales, $11,020 revenue, $3.79 CAC

• Reels results: 220 sales, $6,380 revenue, $4.36 CAC

• Total: $17,400 revenue on $2,400 spend = 7.25× ROAS

The single-platform version of this same campaign (TikTok only) generated 4.9× ROAS. The mix outperformed pure TikTok by 48%.

🔮 Where This Is Going

The platform debate is mostly tribal. The winning brands run portfolios. As short-form video monetization matures, the gaps between platforms will narrow. The competitive advantage will shift from "which platform" to "which creator portfolio" and "which attribution stack."

Build for both. Plan for three. Stay flexible.