# Which Apps Run The Most Detected UI Experiments Overall?

Source: Lazyweb Research
Published: 2026-07-07
Sample size: n=4814
Tags: experiments, saas, mobile, ux-patterns, design, landing-page
HTML: https://www.lazyweb.com/research/which-apps-run-the-most-experiments-overall
Markdown: https://www.lazyweb.com/research/which-apps-run-the-most-experiments-overall.md

**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). [1][2] The top of the ranking is dominated by high-frequency consumer apps, and 138 of 276 companies clear the 10-experiment bar. [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.

## The finding

Lazyweb Research detected **4,814 distinct experiments across 276 companies**. [4] DoorDash is the runaway leader at **221 experiments**, more than the next two apps (Wattpad 85, Replit 77) combined. [1][2] Of the 276 companies, **138 clear the 10-experiment eligibility bar** — meaning roughly half the corpus is a serious enough experimenter to teardown. [3]

| Rank | App | Detected experiments |
|---|---|---|
| 1 | DoorDash | 221 [1] |
| 2 | Wattpad | 85 [2] |
| 3 | Replit | 77 [5] |
| 3 | Brainly | 77 [6] |
| 5 | Zoom | 74 [7] |

## 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) [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. [3]

## Caveats

All 4,814 are observed variations with LLM-inferred rationale, not company-confirmed A/B tests — no lift is measured. [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. [4]

## The numbers

| Stat | Computed from |
| --- | --- |
| DoorDash 221 distinct experiments | company_total:doordash (value 221) |
| Wattpad 85 distinct experiments | company_total:wattpad (value 85) |
| 138 of 276 companies have >=10 experiments | companies_ge10_experiments (138/276) |
| 4,814 experiments across 276 companies | total_detected_experiments (4814); companies_with_experiments (276) |
| Replit 77 distinct experiments | company_total:replit (value 77) |
| Brainly 77 distinct experiments | company_total:brainly (value 77) |
| 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 & citations

- [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).

## Related questions

- [What Is DoorDash A/B Testing On Its Checkout And DashPass Upsell?](https://www.lazyweb.com/research/doordash-checkout-dashpass-upsell-experiments)
- [Which Apps Run The Most Experiments On Their Home Screen?](https://www.lazyweb.com/research/which-apps-experiment-most-on-home)
- [Which Apps Run The Most Paywall CTA Experiments?](https://www.lazyweb.com/research/which-apps-run-the-most-paywall-cta-experiments)