Which Apps Run The Most Detected UI Experiments Overall?
- By Ali Abouelatta
- n = 4,814
- Published
- Updated
- 2 min read
- experiments · saas · mobile · ux-patterns · design · landing-page
Short answer
Across 4,814 detected UI experiments spanning 276 companies (July 2026), DoorDash leads with 221 distinct experiments — 2.6x the second-place app, Wattpad (85). source[1]source[2] The top of the ranking is dominated by high-frequency consumer apps, and 138 of 276 companies clear the 10-experiment bar. source[3] These are observed before/after variations with inferred rationale, not company-confirmed A/B tests.
DoorDash leads the corpus with 221 detected experiments (July 2026), more than the next two apps combined; 138 of 276 companies have 10 or more.
Bar chart · Detected experiments
Detected experiments — The finding
One block is about 7.9 Detected experiments
- 01DoorDash
- 221 [1]
- 02Wattpad
- 85 [2]
- 03Replit
- 77 [5]
- 03Brainly
- 77 [6]
- 05Zoom
- 74 [7]
The finding
Lazyweb Research detected 4,814 distinct experiments across 276 companies. source[4] DoorDash is the runaway leader at 221 experiments, more than the next two apps (Wattpad 85, Replit 77) combined. source[1]source[2] Of the 276 companies, 138 clear the 10-experiment eligibility bar — meaning roughly half the corpus is a serious enough experimenter to teardown. source[3]
How to read the ranking
Raw experiment volume reflects both testing intensity and how much surface area an app has. DoorDash's 221 is inflated by a large home/merchandising surface (at least 45 home experiments) source[1], whereas paywall-only apps like Tinder (28, all paywall) rank lower despite concentrated monetization testing. Use the ranking to find who iterates broadly; use the per-company teardowns to see where.
How to apply it
If you are benchmarking your own program, this ranking sets the ceiling: the most-tracked consumer apps run dozens of detectable variations, and half the corpus exceeds 10. A team running fewer than 10 UI experiments over the tracked window is below the median of apps worth tracking. Pick a same-category leader from the teardowns and match its cadence surface-by-surface. source[3]
Caveats
All 4,814 are observed variations with LLM-inferred rationale, not company-confirmed A/B tests — no lift is measured. source[4] Counts use COUNT(DISTINCT experiment_id); the screenshots join would otherwise inflate totals. Volume rankings favor apps with more screens, not necessarily more disciplined experimentation. source[4]
The numbers
| # | Stat | Computed from |
|---|---|---|
| [1] | DoorDash 221 distinct experiments | company_total:doordash (value 221) |
| [2] | Wattpad 85 distinct experiments | company_total:wattpad (value 85) |
| [3] | 138 of 276 companies have >=10 experiments | companies_ge10_experiments (138/276) |
| [4] | 4,814 experiments across 276 companies | total_detected_experiments (4814); companies_with_experiments (276) |
| [5] | Replit 77 distinct experiments | company_total:replit (value 77) |
| [6] | Brainly 77 distinct experiments | company_total:brainly (value 77) |
| [7] | Zoom 74 distinct experiments | company_total:zoom (value 74) |
Methodology
Universe: 4,814 distinct detected UI experiments across 276 companies (COUNT(DISTINCT experiment_id)), July 2026. Method: before/after screenshot diffs with LLM-inferred rationale, ranked by per-company distinct-experiment count. Caveat: detected variations only, never confirmed A/B tests; volume favors apps with more screens.
Sources
- [1]
Lazyweb Research analysis of 221 detected experiments (DoorDash, ~800-app mobile corpus), July 2026
COUNT(DISTINCT experiment_id); corpus-leading total.
- [2]
Lazyweb Research analysis of 85 detected experiments (Wattpad, ~800-app mobile corpus), July 2026
COUNT(DISTINCT experiment_id); second-highest total.
- [3]
Lazyweb Research analysis of 4,814 detected experiments (276 companies, ~800-app mobile corpus), July 2026
138 companies have >=10 distinct experiments (the page-eligibility bar).
- [4]
Lazyweb Research analysis of 4,814 detected experiments (276 companies, ~800-app mobile corpus), July 2026
COUNT(DISTINCT experiment_id) across all companies; detection window 2022-10-10 to 2026-07-04.
- [5]
Lazyweb Research analysis of 77 detected experiments (Replit, ~800-app mobile corpus), July 2026
COUNT(DISTINCT experiment_id).
- [6]
Lazyweb Research analysis of 77 detected experiments (Brainly, ~800-app mobile corpus), July 2026
COUNT(DISTINCT experiment_id).
- [7]
Lazyweb Research analysis of 74 detected experiments (Zoom, ~800-app mobile corpus), July 2026
COUNT(DISTINCT experiment_id).
Source: Lazyweb Research — proprietary analysis of real, in-market app screens. Cite as Lazyweb Research, 2026-07-07.