Products

KTool

Send newsletters & articles to Kindle

ktool.io Entertainment & Media / Books & Reading

AI Benchmark
Desktop
Mobile
Monthly visits
5.6K
Down49.2%MoMSep 2026
MRR
$1,430Claimed
Disclosed 2026-10-01IndiePage
Entry price
$2.99/mo
Lower than 84% of peersNiche median $7.99/mo
Creators
BoltAI
@bolt__ai· 2,685 followersCo-created with Daniel Nguyen, legendary 🙄🤔🤯 +1 more
Launched
4y ago
2022-08-25 · Est.

Traffic & revenue

Monthly visitsData through Sep 2026
MRRSelf-reported, unverified · IndiePage
  • Nov 2026$1,000Self-reported MRR · unverified
  • Oct 2026$1,430Self-reported MRR · unverified
Events2 revenue disclosures · 5 changes

Revenue evidence

Publicly disclosed & verified revenue figures, sorted by date
  • 2026-11-06$1,000/moClaimedStarter Story

    “Building A $1K MRR Kindle Productivity Tool To Limit Screen Times”

  • 2026-10-01$1,430/moClaimedIndiePage

Marketing moves

Launches, search & content, referrals, promotions
  • Launched on IndiePageLaunch

    KTool — Send web articles to Kindle

    Jun 13, 2023 · 3y agoLaunch page

  • Launched on BetaListLaunch

    KTool – Send anything to Kindle — Send anything to Kindle

    Oct 5, 2022 · 4y agoLaunch page

  • Launched on Show HN (393 pts · 78 comments)Launch

    I built a tool to help you read Hacker News on Kindle — Hi HN, I'm Daniel Nguyen. In June, I quit my job to start indie hacking full-time. The idea of KTool first came to my mind when I was read…

    Aug 29, 2022 · 4y agoLaunch page

  • Launched on Show HN (33 pts · 3 comments)Launch

    I built a tool to help you read Hacker News on Kindle — Hi HN, I'm Daniel Nguyen. In June, I quit my job to start indie hacking full-time. The idea of KTool first came to my mind when I was read…

    Aug 25, 2022 · 4y agoLaunch page

Third-party reviews & case dossiers

Acquisition breakdowns, engineer reviews & open-source metrics
Show HN
2022-08-25Source
Post excerpt:
Hi HN, I'm Daniel Nguyen. In June, I quit my job to start indie hacking full-time. The idea of KTool first came to my mind when I was reading "Ask HN: I'm a software engineer going blind, how should I prepare?"[0] I've been wearing glasses since I was 5. My right eye is basically blind. Doctors said there is no chance to cure it. I was genuinely scared. Like
Show HN
2022-08-29Source
Post excerpt:
Hi HN, I'm Daniel Nguyen. In June, I quit my job to start indie hacking full-time. The idea of KTool first came to my mind when I was reading "Ask HN: I'm a software engineer going blind, how should I prepare?"[0] I've been wearing glasses since I was 5. My right eye is basically blind. Doctors said there is no chance to cure it. I was genuinely scared. Like
Starter Story1 team members
2023-08-12Source

Building A $1K MRR Kindle Productivity Tool To Limit Screen Times

Traffic sources

Sep 2026

Traffic breakdown

Channels

  • Direct39%
  • Organic Search32%
  • Referrals10%
  • Social6%
  • Other12%

Countries

  • United States69%
  • India29%
  • United Kingdom2%

Search

Domain authority 35Domain registered 2021-12-31

KeywordMonthly volume
ktool1,090
k tool870
k-tool370
send blogs & articles to kindle90
ktool subscription30

Traffic data: Vaneform

Pricing

KTool Lifetime
$149/once
Basic
$2.99/mo
Billed annually $36/yr
Send unlimited individual article · up to 20 MB. · 30-day data retention
Premium
$3.99/mo
Billed annually $48/yr
Forward unlimited newsletters to your Kindle. · Support 100+ newsletter formats · 90-day data retention
Platinum
$6/mo
Billed annually $72/yr
Unlimited data retention

Trial: Start 7-day FREE TRIAL now · 4 paid tiers ($2.99–$149) · Observed 2026-11-04 · Pricing page

Entry price $2.99/mo, Lower than 84% of peers; “Books & Reading” median is $7.99/mo.View pricing benchmark

Pages & changes

Tracked since 2026-09-15

Key pages

Weekly snapshots

Changes

  1. Nov 1 · 13d ago

    Removed technology: BunnyFeatures

    Bunny→—

  2. Nov 1 · 13d ago

    Adopted technology: Cloudflare Bot ManagementFeatures

    —→Cloudflare Bot Management

  3. Nov 1 · 13d ago

    Removed technology: Google AnalyticsFeatures

    Google Analytics→—

  4. Nov 1 · 13d ago

    Removed technology: Google OptimizeFeatures

    Google Optimize→—

  5. Nov 1 · 13d ago

    Removed technology: Simple AnalyticsFeatures

    Simple Analytics→—

Design

First-screen visual analysis & :root CSS

Soft & Friendly (Light canvas, balanced density) featuring split copy & visual layout and product ui screenshot / component visuals.

First-screen preview · click to zoom

First-screen pitch & conversion flow

“Send newsletters & articles to Kindle”

Split Copy & Visual hero structure paired with start free / sign up CTA and stacked avatars & testimonials.

Conversion path: Split Copy & Visual + Product UI Screenshot / Component → Start Free / Sign Up · Trust bar: Stacked Avatars & Testimonials

Palette · click to copy

5-D design score7.5 / 10
Typography
8.0
Color & Contrast
8.0
Layout & Spacing
8.0
Craft & Polish
7.0
Distinctiveness
6.0

Structure

Fonts
Nunito Sans
Primary visual
Product UI Screenshot / Component
Conversion CTA
Start Free / Sign Up
Social proof
Stacked Avatars & Testimonials
Navigation
Full-Width Top Bar
Theme & density
Light · Balanced
Corners & depth
Medium Radius · With shadow
Preview full AI design brief (includes :root CSS variables & layout rules)Style tokens only; never copy brand names, logos, copy, or images
# Design Brief: Soft & Friendly

Warm low-saturation pastels, generous rounded corners, and approachable illustrations.

## Design Tokens

```css
:root {
  --background: #f8f9fb;
  --surface: #ffffff;
  --foreground: #25252b;
  --muted-foreground: #77777f;
  --accent: #e91e50;
  --radius: 8px;
  --font-heading: "Nunito Sans", ui-sans-serif, system-ui, sans-serif;
  --font-body: "Nunito Sans", ui-sans-serif, system-ui, sans-serif;
}
```

Color area ratio: Background #F8F9FB (~76%) · Surface #FFFFFF (~8%) · Text #25252B (~7%) · Muted Text #77777F (~5%) · Accent #E91E50 (~4%). Background and surface dominate the canvas; reserve the accent color for primary buttons and active states.

## Layout & Conversion Structure

- Hero layout: Split Copy & Visual
- Navigation: Full-Width Top Bar
- Theme & density: Light · Balanced
- Border radius & elevation: Medium Radius; use elevation shadows to separate layers
- Primary visual medium: Product UI Screenshot / Component
- Conversion CTA: Start Free / Sign Up · Trust bar uses Stacked Avatars & Testimonials
- Headline hook: Pain Relief & Replacement
- Hero components: Large Hero Product Shot, Metrics Strip
- Spatial layout notes: Split Copy & Visual hero structure paired with start free / sign up CTA and stacked avatars & testimonials.
- Visual summary: Soft & Friendly (Light canvas, balanced density) featuring split copy & visual layout and product ui screenshot / component visuals.

## Avoid

- Harsh pure-black backgrounds
- Sharp 0px corners
- Cold technical jargon in hero copy

Implement the UI following the design tokens and layout specifications above: use only these color variables, and reserve the accent color strictly for primary actions and active states. Adopt only this visual style—never copy any reference product’s brand name, logo, copy, or imagery.

Questions & evidence

How much does KTool cost?
KTool Lifetime: $149/once; Basic: $2.99/mo (annual billing available); Premium: $3.99/mo (annual billing available); Platinum: $6/mo (annual billing available). Observed 2026-11-04. Check the source for current billing terms, usage limits and taxes.Source
How much website traffic does KTool get?
Vaneform estimates 5.6K website visits in 2026-09. Visits can include repeat visits; this estimate does not measure paying customers or revenue.Source

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Entertainment & Media / Books & Reading

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