# Stamp landing-page Growth Score report

Lazyweb publishes a public search API over its indexed pages; the guide is at https://www.lazyweb.com/agent-access.

Source: https://www.lazyweb.com/yc-w25/stamp
Source observed: 2026-10-15T20:40:39.943Z
Last checked: 2026-10-20T07:27:16.354+00:00
Indexed: 2026-10-16T00:10:58.401+00:00

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# Stamp landing-page Growth Score report

We are Lazyweb, and this Growth Score report evaluates Stamp, whose site is [stampmail.ai](https://www.stampmail.ai/). The report was updated **September 21, 2026** and gives Stamp an overall **Growth Score of 72/100**. Stamp’s weakest category is **Trust**.

[← Back to YC W25](https://www.lazyweb.com/yc-w25)

## Overall ranking and category scores

Stamp ranks **#4 of 6** in the comparison set:

1. [Notion Mail — 83](https://www.lazyweb.com/growth-score/site/notion.com)
2. [Shortwave — 78](https://www.lazyweb.com/growth-score/site/shortwave.com)
3. [Missive with Zoe (or) Jace — excluded; use Serif — 75](https://www.lazyweb.com/growth-score/site/serif.ai)
4. **Stamp — 72**
5. [Superhuman — 71](https://www.lazyweb.com/growth-score/site/superhuman.com)
6. [Fyxer — 71](https://www.lazyweb.com/growth-score/site/fyxer.com)

| Category | Score | Assessment |
| --- | ---: | --- |
| [Trust](https://www.lazyweb.com/yc-w25/stamp#gs-trust) | 44 | Poor |
| [CTA](https://www.lazyweb.com/yc-w25/stamp#gs-cta) | 76 | Fair |
| [Value props](https://www.lazyweb.com/yc-w25/stamp#gs-value_props) | 76 | Fair |
| [Information hierarchy](https://www.lazyweb.com/yc-w25/stamp#gs-information_hierarchy) | 82 | Strong |
| [Mobile web](https://www.lazyweb.com/yc-w25/stamp#gs-mobile_web) | 84 | Strong |

[Fix Trust](https://www.lazyweb.com/plans/checkout?plan=individual&source=growth_score_feature_build_fixes)

## Score over time

The report includes a score-history chart for Stamp and the comparison products, with the highlighted observation dated **Sep 21, 2026**. The tracked series are Stamp, Superhuman, Shortwave, Fyxer, Notion Mail, and Missive with Zoe (or) Jace — excluded; use Serif.

## Trust — 44/100, Poor

Trust measures proof that a product is real, competent, and safe to try.

![Stamp Trust evaluation capture](https://zlfyzdmohcskkucuunmk.supabase.co/storage/v1/object/public/sites/growth-score/site/stampmail.ai.jpg?v=2026-09-21T02%3A53%3A53.912%2B00%3A00)

The Stamp comparison image shows an embedded product screenshot in the **“Watch the Demo”** card, including the real Stamp inbox interface with a **Priority** tab and **Stamp Age**.

### Trust comparison evidence

| Product | Trust read |
| --- | --- |
| Stamp | Embedded product screenshot in the “Watch the Demo” card showing the real Stamp inbox UI with Priority tab and Stamp Age |
| Superhuman | Rendered inbox UI with split tabs: Important 8, Calendar 18, Team 15, and Docs 40, plus an “Auto Draft to Karl” AI-composed reply; the supplied text truncates the final detail |
| Shortwave | “Saw us in the New York Times?” press banner |
| Fyxer | Product UI demo with INBOX, MEETINGS, PRIORITIES, and ACTIONS tabs showing a real email tagged “To Respond” from Elena Marsh |
| Notion Mail | “Trusted by 98% of the Forbes Cloud 100” with Riot Games, affirm, and 1Password logos in the mobile presentation |
| Missive with Zoe (or) Jace — excluded; use Serif | “All Workers” dashboard screenshot showing agents Greg and Reception handling 114 real lead jobs from RentHop and Zillow |

![Notion Mail Trust comparison](https://zlfyzdmohcskkucuunmk.supabase.co/storage/v1/object/public/sites/growth-score/site/notion.com-mobile.jpg?v=2026-09-20T06%3A40%3A10.821%2B00%3A00)

![Shortwave Trust comparison](https://zlfyzdmohcskkucuunmk.supabase.co/storage/v1/object/public/sites/growth-score/site/shortwave.com.jpg?v=2026-09-21T02%3A55%3A12.361%2B00%3A00)

![Superhuman Trust comparison](https://zlfyzdmohcskkucuunmk.supabase.co/storage/v1/object/public/sites/growth-score/site/superhuman.com.jpg?v=2026-09-21T01%3A34%3A28.548%2B00%3A00)

![Serif comparison](https://zlfyzdmohcskkucuunmk.supabase.co/storage/v1/object/public/sites/growth-score/site/serif.ai.jpg?v=2026-09-21T02%3A56%3A30.993%2B00%3A00)

![Fyxer Trust comparison](https://zlfyzdmohcskkucuunmk.supabase.co/storage/v1/object/public/sites/growth-score/site/fyxer.com-mobile.jpg?v=2026-09-20T20%3A32%3A54.296%2B00%3A00)

### Trust ranking

1. Notion Mail — 84
2. Shortwave — 62
3. Superhuman — 58
4. Missive with Zoe (or) Jace — excluded; use Serif — 58
5. Fyxer — 52
6. **Stamp — 44**

**Proof section builder** — [Build proof section](https://www.lazyweb.com/backlog?site=stampmail.ai#opt-trust-signals)

Choose the right proof signals and get copy and placement for a stronger trust section.

## CTA — 76/100, Fair

This category evaluates CTA copy, size, verb, and cost-feel: whether the primary CTA earns the click.

The comparison shows these CTA labels:

- Stamp: **Get Started →**
- Notion Mail: **Get Notion free**
- Shortwave: **Get started for free →**
- Fyxer: **Start for free**

The report lists three CTA problems for Stamp:

- The label is generic and names no payoff.
- The CTA does not echo the headline.
- The offer signal is unclear; free or trial status is not stated.

### CTA ranking

1. Notion Mail — 88
2. Shortwave — 82
3. Fyxer — 82
4. **Stamp — 76**
5. Missive with Zoe (or) Jace — excluded; use Serif — 76
6. Superhuman — 72

**CTA rewrite studio** — [Rewrite this CTA](https://www.lazyweb.com/backlog?site=stampmail.ai#opt-cta-writing)

Generate primary and secondary CTA options grounded in Stamp’s offer and visitor objections.

## Value props — 76/100, Fair

This category evaluates whether the title, subtitle, and hero communicate the product’s true value.

### Stamp’s headline

> **The AI Secretary That Drafts Your Replies.**

Supporting copy:

> “Stamp learns your preferences to draft, prioritize, summarize, and schedule in your voice, with your context.”

### What works

- The headline names the concrete job: drafting replies.
- “In Stamp’s voice, with Stamp’s context” addresses a key objection.
- The screenshot shows a real drafted email.

### What could improve

- There are no numbers or proof points anywhere.
- The mobile phrase **“Email, handled.”** is too vague.
- The page does not state an emotional payoff such as hours saved.

### Value-prop ranking

1. Superhuman — 82
2. **Stamp — 76**
3. Shortwave — 76
4. Notion Mail — 72
5. Missive with Zoe (or) Jace — excluded; use Serif — 68
6. Fyxer — 58

## Information hierarchy — 82/100, Strong

This category evaluates whether the design helps or inhibits the page’s intended message.

![Information hierarchy annotations on the desktop capture](https://zlfyzdmohcskkucuunmk.supabase.co/storage/v1/object/public/sites/growth-score/site/stampmail.ai.jpg?v=2026-09-21T02%3A53%3A53.912%2B00%3A00)

1. **Seven-item navigation row** — Features, Pricing, Downloads, Blog, Contact, and Sign In offer six exits before the hero CTA receives attention.
2. **Header Get Started button** — It has the same weight and label as the hero CTA, splitting the primary action between two equal targets.
3. **Play button** — The high-contrast pill draws attention toward the demo before the hero conversion is made.

## Mobile web — 84/100, Strong

This category evaluates the phone experience as a first-class experience.

![Mobile web annotations on the mobile capture](https://zlfyzdmohcskkucuunmk.supabase.co/storage/v1/object/public/sites/growth-score/site/stampmail.ai-mobile.jpg?v=2026-09-21T02%3A53%3A53.912%2B00%3A00)

1. **Hero Get Started button** — It is desktop-proportioned at half the column width rather than a full-bleed thumb target.
2. **Header Get Started button** — It duplicates the hero CTA in the same viewport, splitting the tap decision.

The mobile hero uses the phrase **“Email, handled.”** and describes Stamp as learning preferences to draft, prioritize, summarize, and schedule in the user’s voice and context.

## Competitors

The report infers this comparison set from product, audience, and value proposition:

| Rank | Product | Domain | Growth Score |
| ---: | --- | --- | ---: |
| 1 | [Notion Mail](https://www.lazyweb.com/growth-score/site/notion.com) | notion.com | 83 |
| 2 | [Shortwave](https://www.lazyweb.com/growth-score/site/shortwave.com) | shortwave.com | 78 |
| 3 | [Missive with Zoe (or) Jace — excluded; use Serif](https://www.lazyweb.com/growth-score/site/serif.ai) | serif.ai | 75 |
| 4 | Stamp | stampmail.ai | 72 |
| 5 | [Superhuman](https://www.lazyweb.com/growth-score/site/superhuman.com) | superhuman.com | 71 |
| 6 | [Fyxer](https://www.lazyweb.com/growth-score/site/fyxer.com) | fyxer.com | 71 |

The report is a Lazyweb Growth Score analysis for Stamp, not Stamp’s own product documentation. It evaluates the public landing page’s messaging, proof, calls to action, information hierarchy, and mobile presentation.

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