Newsletter Studio
Newsletter Studio is an online tool, with nothing to install and no code: newsletter management and sponsor reporting for independent writers, small media and brands.
Run your newsletter: calendar, figures, revenue, sponsors and sponsor reports. Everything you need to keep a newsletter going: editorial line and pillars, calendar and edition generator on your send dates, statistics, revenue (paid subscription, sponsors, products, donations), deliverability and A/B tests. The tool calculates a score on 6 axes, tells you what to improve first, prepares a branded report for each sponsor and your media kit.
Standard tool€23 Reference price: €29 −20% launch price until 31 October · once, for lifeFree trial: the whole tool, watermarked exports
No setup: the engine works straight away. AI is optional — without it, your documents are still generated.
At a glance
| Category | Marketing — Sell, attract and convert. |
|---|---|
| Export formats | Edition outlines to paste into Substack, Beehiiv, Kit or Mailchimp, ICS calendar, Google Sheets, Notion, Airtable, CSV, JSON, ZIP |
| Level | Standard Complete tools for your everyday documents and follow-up. Compare levels |
| Free version | No account or credit card: the whole editor, preview, demo, 5-axis score and 3 recommendations, 1 project, exports with a “Discovery version” watermark; Pro removes the watermark and adds AI, templates, data import / export and more projects |
| Pro version | €23 |
| Languages | English and French (interface, generated documents and user guide) |
| Your data | Saved in your browser. Our servers do the calculations but don't keep your projects. |
| AI | No setup: the engine works straight away. AI is optional — without it, your documents are still generated. If you want it, the Pro version lets you plug in the AI of your choice with your own key: Agnes, OpenAI, Anthropic Claude, Mistral, Groq, Google Gemini, DeepSeek, OpenRouter and any OpenAI-compatible service. |
| User guide | Step-by-step guide to Newsletter Studio |
| Last updated |
Everything you need, nothing you don't
- Score on 6 axes: growth, engagement, consistency, retention, revenue and deliverability (an axis without data is not rated)
- Editorial calendar (month, list) and an edition generator that follows your rhythm, send day and pillars
- Statistics, calculated formulas (growth, unsubscribes, click-to-open, revenue per subscriber, subscriber lifetime value, actual CPM) and benchmarks for 12 industries
- Revenue: model by source, sponsor slot price calculated from your opens, 12-month projection based on your measured growth
- Sponsors: slot tracking, branded sponsorship report (PDF, HTML, Markdown) and a media kit to pitch brands
- Deliverability (SPF, DKIM, DMARC, bounces, complaints), A/B tests, lessons from past editions, import of your sending tool's statistics
- Exports: edition outlines to paste into Substack, Beehiiv, Kit or Mailchimp, ICS calendar, Google Sheets, Notion, Airtable, CSV, JSON, ZIP
- 11 industry templates, up to 30 newsletters · AI of your choice (Agnes, OpenAI, Claude, Mistral, Groq, Gemini…)
Pricing
Newsletter Studio is a Standard tool. For free, you use the whole tool and export with a “Discovery version” watermark; Pro removes the watermark and adds AI, templates, data import / export and more projects.
This tool
Newsletter Studio
€23 Reference price: €29
1 tool · once, for life
−20% launch price until 31 October
Just Newsletter Studio, updates included.
Unlock this toolFull Access — all 33 tools
Full Access
€179
33 tools · €5.42 per tool
−81% compared with buying them separately at normal prices
Every tool, plus future ones at no extra cost.
Unlock Full AccessStruck-through price: the lowest price charged in the 30 days before the offer started.
Newsletter platforms put advanced analytics and sponsorship tools in paid plans, often several tens of euros a month.
Refunded within 30 days Secure payment by Stripe
Try and buy without an accountData stays in your browserBelgian company (BCE 0508 794 296)
What you can do for free
| Feature | Free | Pro · €23 |
|---|---|---|
| Full editor, demo and 5-axis score | ✓ | ✓ |
| Exports | With a “Discovery version” watermark | No watermark |
| Data import / export | — | ✓ |
| Templates and AI | — | ✓ |
| Saved projects | 1 | More |
Also in a themed pack
Newsletter Studio is also part of this pack.
📣Marketing Pack
Attract, convince, sign and measure: the 16 tools to find and approach clients, attract sign-ups with a lead magnet, sell with your funnel and webinars, prove your results, run your social media, newsletter and quizzes, and track your results.
- 📅 Content Planner
- 🏷️ Meta Tag Studio
- 🪄 Landing Page Copy Studio
- 🔎 SEO Audit Studio
- ✉️ Email Sequence Studio
- 🎯 Client Finder Studio
- 📄 Freelance Proposal Generator
- 🎛️ Analytics Studio
- 📱 Social Media Manager Studio
- 📰 Newsletter Studio
- 🧩 Quiz Generator Studio
- 🧲 Funnel Studio
- 📞 Outreach Studio
- ⭐ Reviews & Case Study Studio
- 🎤 Webinar Studio
- 🎁 Lead Magnet Studio
Refunded within 30 days Secure payment by Stripe
Try and buy without an accountData stays in your browserBelgian company (BCE 0508 794 296)
Frequently asked questions
Newsletter Studio is an online tool, with nothing to install and no code: newsletter management and sponsor reporting for independent writers, small media and brands. Run your newsletter: calendar, figures, revenue, sponsors and sponsor reports. Everything you need to keep a newsletter going: editorial line and pillars, calendar and edition generator on your send dates, statistics, revenue (paid subscription, sponsors, products, donations), deliverability and A/B tests. The tool calculates a score on 6 axes, tells you what to improve first, prepares a branded report for each sponsor and your media kit.
You can try it for free, with no account or credit card. It belongs to the Standard level: the whole editor, preview, demo, 5-axis score and 3 recommendations, 1 project, exports with a “Discovery version” watermark; Pro removes the watermark and adds AI, templates, data import / export and more projects. The Pro version costs €23 (launch price until 31 October, instead of €29) as a one-time payment, with lifetime access and updates included. It is also included in: Marketing Pack, Full Access.
In your own browser. Our servers do the calculations but don't keep the content of your projects, so they stay on this device, in this browser.
No. No setup: the engine works straight away. AI is optional — without it, your documents are still generated. Newsletter Studio uses Yok-Kod's rules and calculation engine. If you want to go further, the Pro version lets you plug in the AI of your choice (Agnes, OpenAI, Anthropic Claude, Mistral, Groq, Google Gemini, DeepSeek, OpenRouter and any OpenAI-compatible service) with your own key.
The user guide explains each step, with examples and answers to common problems.
A platform that generates your business documents in minutes, with no code. Available now: Pitch Deck Builder, Content Planner, Financial Forecast, Business Plan, SWOT Analysis, Video Storyboard, README Generator, Meta Tag Studio, Landing Page Copy Studio, SEO Audit Studio, Email Sequence Studio, Naming Studio, Client Finder Studio, Freelance Proposal Generator, Analytics Studio, Social Media Manager Studio, Newsletter Studio, Ebook & Course Studio, Brand Identity Studio, Website Studio, Compliance Studio, Quiz Generator Studio, Ad Spot Studio, Funnel Studio, CRM Studio, Outreach Studio, Reviews & Case Study Studio, Contracts & Terms Studio, Roadmap Studio, Launch Studio, Video & Podcast Studio, Webinar Studio and Lead Magnet Studio. More tools are coming soon — all in one place.
No. Yok-Kod is anti-subscription by default: each tool is a one-time purchase with lifetime access. You pay once, that's it.
Until 31 October 2026 inclusive (Brussels time), Essential tools cost €15 instead of €19 and Standard tools cost €23 instead of €29, as a one-time payment. The struck-through price is the normal price, which is also the lowest price charged in the 30 days before the offer started. Advanced tools and packs are not included: their prices stay the same. The price you pay during the offer gives you exactly the same lifetime access, updates included, as the normal price. After 31 October 2026, normal prices apply again automatically. If you later move to a pack, the amount you actually paid is deducted.
Yes. Each tool can be bought on its own (from €15 to €49), or in a pack: Business Pack (8 tools, €99 vs €282 bought separately at normal prices), Marketing Pack (16 tools, €129 vs €434 bought separately at normal prices), Creative + Dev Pack (9 tools, €99 vs €241 bought separately at normal prices) and Full Access (all 33 tools and future ones, €179 vs €957 bought separately at normal prices). Full Access also includes every future tool. See the Pricing page.
Because they don't do the same amount of work. There are three levels: Advanced (5 tools, €49), Standard (18 tools, €23) and Essential (10 tools, €15). The level is shown on every tool card and tool page.
Yes. You pay once and the tool stays yours, with all its future improvements, at no extra cost.
Yes. When you buy a pack, what you already paid for tools it contains is automatically deducted from the price (up to 70% of the pack price). The exact amount is shown before payment.
Yes, and without even creating an account: open a tool and try it right away, no credit card. What you get for free depends on the tool's level: Essential tools are free in full, exports included (documents carry a small “Made with Yok-Kod” mention that Pro removes); Standard tools are complete but their exports carry a “Discovery version” watermark; Advanced tools show a preview of about a third of the document. Your work stays in your browser; if you then create a free account, it is recovered automatically. Pro adds AI, templates and more projects in every tool.
Yes. The website and all the tools are available in English: interface, user guides, generated documents and AI answers. Each tool also exists in French (FR button at the top of the page), with the same purchase.
No setup: the engine works straight away. AI is optional — without it, your documents are still generated. Only generating the cover and closing illustrations (Pitch Deck Builder) and generating scene pictures and videos (Ad Spot Studio) need AI. It is available in the Pro version of every tool. You choose your provider (Agnes, OpenAI, Anthropic Claude, Mistral, Groq, Google Gemini, DeepSeek, OpenRouter or any OpenAI-compatible service) and bring your own key: it stays in your browser and is only sent to our servers during an AI request, never stored. Not sure how to get a key? Follow our step-by-step AI key guide.
Yes. The engine runs on our servers, but your content isn't stored with us: your documents (decks, calendars, forecasts, business plans, analyses, storyboards, READMEs, proposals) are saved in your own browser. No ad trackers, no third-party cookies. GDPR compliant.
No. Click “Unlock”, pay with Stripe using your email address, and your account is created automatically: you are signed in straight away and receive an email to choose your password. Work done during the free trial is attached to your account, in the same browser. If you already have an account, sign in before buying a pack: tools you already own are deducted from the price.
Yes: 30-day money-back guarantee, no questions asked. Write to us via the Contact page with your account email and we'll refund you in full.