Probiex
Probiex builds focused, practical systems for solo SaaS founders, indie hackers, and freelancers: finance workbooks with worked examples, playbooks with day-by-day plans, Notion systems specified to the property, and code starters. 48 products, each shippable the week you buy it.
The short version
- Store: probiex.gumroad.com — 48 products.
- Who it serves: solo SaaS founders, indie hackers, freelancers, one-person agencies.
- What ships: finance calculators, launch and outreach kits, Notion builds, resume/deck/contract documents, prompt libraries, code starters.
- The mechanism: every product opens with published research that cites the problem, then hands over the system.
- Model: one-time purchase, instant download, no subscription, no email wall. One free starter product.
- There is no refund or money-back guarantee; all sales final, support fixes broken downloads.
- Contact: trexoo.ai@gmail.com
Products (48)
AI & PROMPTS
AI Agent Blueprint Stack — An agent-powered operation, hand over. (AGENTS · SCHEMAS) https://probiex.gumroad.com/l/ai-agent-blueprint-stack [okf]
The AI-Slop Audit — A 20-tell scoring system for catching AI-sounding writing before you publish it. 15-minute audit. (20-TELL AUDIT) https://probiex.gumroad.com/l/ai-slop-audit [okf]
100 Claude Prompts for SaaS Founders — 100 copy-paste Claude prompts that run your entire SaaS business — research, launch, copy, and growth. (100 PROMPTS · PDF + MD) https://probiex.gumroad.com/l/claude-prompts-saas-founders [okf]
10 Free Claude Prompts for SaaS Founders — Free sample — 10 ready-to-use Claude prompts for customer research, copy, and growth. (FREE · 10 PROMPTS) https://probiex.gumroad.com/l/free-claude-prompts [okf]
n8n Solopreneur Workflows — Automation workflows that run your week. (3 WORKFLOWS) https://probiex.gumroad.com/l/n8n-solopreneur-workflows [okf]
Voice AI System — Clone your process, not your voice. (SCHEMA + GUIDE) https://probiex.gumroad.com/l/voice-ai-system [okf]
CAREER & TEACHING
AI Literacy Engineering Kit — 30 lesson plans that teach students to think critically with AI, not avoid it. (30 LESSON PLANS) https://probiex.gumroad.com/l/ai-literacy-kit [okf]
AI Resume Optimizer Spec + Kit — A complete spec and launch kit for a resume tool. (SPEC + KIT) https://probiex.gumroad.com/l/ai-resume-optimizer [okf]
The ATS Resume Pack — Six worked-example resumes as DOCX masters, built to survive how applicant tracking systems parse documents. (6 DOCX MASTERS) https://probiex.gumroad.com/l/ats-resume-pack [okf]
The Course Builder for Notion — Course architecture in Notion: outcome gates per module, a recording queue, and a feedback loop. (NOTION · COURSE) https://probiex.gumroad.com/l/course-curriculum-builder [okf]
The Job-Search OS for Notion — Run your job search like a campaign: applications, contacts, follow-up dates, and offer math in one system. (NOTION · SEARCH) https://probiex.gumroad.com/l/job-search-os [okf]
The Pitch Deck Builder — A 16-slide investor deck template with a worked example, speaker notes, and one question answered per slide. (16 SLIDES + PPTX) https://probiex.gumroad.com/l/pitch-deck-builder [okf]
FINANCE
Break-Even CAC Calculator — The CAC your margins cannot sustain. (CAC FLOOR) https://probiex.gumroad.com/l/break-even-cac-calculator [okf]
5 Free Invoice Reminder Emails — Five copy-paste emails that keep invoices out of the late pile: pre-due, due-day, day 1, day 14, and the final notice. (FREE · 5 EMAILS) https://probiex.gumroad.com/l/free-invoice-reminder-emails [okf]
The Freelance Cash-Flow Planner — A 90-day rolling plan for the money you actually have. (90-DAY FORECAST) https://probiex.gumroad.com/l/freelance-cash-flow-planner [okf]
Freelancer Rate Calculator — What to bill so the math works, as a workbook. (RATE FLOOR) https://probiex.gumroad.com/l/freelancer-rate-calculator [okf]
The Late-Payment Playbook — The 5-layer collection system for freelancers: contract clauses, deposits, reminder emails, and an escalation ladder that gets … (PDF + EMAIL KIT) https://probiex.gumroad.com/l/late-payment-playbook [okf]
The Pricing Calculator — Van Westendorp, value metrics, three tiers — as a workbook. (BANDS + TIERS) https://probiex.gumroad.com/l/pricing-calculator [okf]
Runway & Breakeven Calculator — How many months of cash you actually have. (RUNWAY MATH) https://probiex.gumroad.com/l/runway-breakeven-calculator [okf]
SaaS Metrics Dashboard Kit — The 10 survival numbers for SaaS as a workbook you own. (XLSX + PDF) https://probiex.gumroad.com/l/saas-metrics-dashboard [okf]
OPERATIONS
Freelance Client Portal for Notion — A client-facing portal in Notion: deliverables, milestones, approvals, and a decision log clients can check themselves. (NOTION · PORTAL) https://probiex.gumroad.com/l/client-portal-os [okf]
Founder Anti-Burnout Weekly System — Escape the developer's safe room. A 15h/week structure that ships and sells. (15H/WEEK) https://probiex.gumroad.com/l/founder-anti-burnout-system [okf]
The Indie Hacker OS — 6 linked Notion databases for ideas, projects, revenue, audience, and operations. (6 DATABASES) https://probiex.gumroad.com/l/indie-hacker-os [okf]
Notion Meeting OS — Meeting notes, decisions, and owner-assigned actions with a Friday review that closes every loop the week opened. (NOTION · MEETINGS) https://probiex.gumroad.com/l/meeting-os [okf]
Notion Content Calendar — A social content database, not a sticker board. (NOTION · CONTENT) https://probiex.gumroad.com/l/notion-content-calendar [okf]
Notion Founder CRM — A founder CRM you build in one session. (NOTION · CRM) https://probiex.gumroad.com/l/notion-founder-crm [okf]
One-Person Agency Engine — Build a profitable solo agency without burning out. Rate math, client scoring, capacity rules. (RATE + CAPACITY) https://probiex.gumroad.com/l/solo-agency-engine [okf]
GETTING CUSTOMERS
Cold Outreach Reply Pack — 40+ reply templates sorted by the objection. (40+ REPLIES) https://probiex.gumroad.com/l/cold-outreach-reply-pack [okf]
First 100 Customers: Warm Signal Playbook — Stop spraying cold messages. Reach people at the exact moment they need you. (21-DAY PLAN) https://probiex.gumroad.com/l/first-100-customers [okf]
25 Free Cold Email First Lines — Twenty-five first lines grouped by scenario, plus the five rules that keep an opener about them, not you. (FREE · 25 LINES) https://probiex.gumroad.com/l/free-cold-email-openers [okf]
Free Landing Page Leak Check: 20 Points — A pass-or-miss check for your landing page: 20 points, a fix line per miss, and scoring bands that say polish, patch, or rebuild. (FREE · 20 CHECKS) https://probiex.gumroad.com/l/free-landing-page-checklist [okf]
The Freelance Contract Pack — Six fill-in contracts for freelancers: MSA, SOW, NDA, IP assignment, change order, and deposit rider. (6 DOCUMENTS) https://probiex.gumroad.com/l/freelance-contract-pack [okf]
GEO Operations System — Get your content cited by ChatGPT, Perplexity, and Google AI Overviews with a repeatable scoring system. (0–100 + CLI) https://probiex.gumroad.com/l/geo-operations-system [okf]
The Landing Page Conversion Audit — 60-point scorecard: find the leak, fix it in order. (60-POINT AUDIT) https://probiex.gumroad.com/l/landing-page-conversion-audit [okf]
Launch Week Email Kit — The seven emails that decide whether a launch ships. (7 EMAILS) https://probiex.gumroad.com/l/launch-week-email-kit [okf]
90-Day LinkedIn Content Playbook — A day-by-day 90-day plan to grow on LinkedIn as a SaaS founder. (90 DAYS) https://probiex.gumroad.com/l/linkedin-content-playbook [okf]
SaaS Founder Copy Vault — 80+ proven copy blocks for launches, emails, and landing pages. (80+ BLOCKS) https://probiex.gumroad.com/l/saas-founder-copy-vault [okf]
Silent Churn Rescue Kit — A first-7-days activation system that stops silent churn before it starts. (7-DAY SYSTEM) https://probiex.gumroad.com/l/silent-churn-rescue-kit [okf]
Titles & Hooks Scorecard — Score video titles and hooks against six checks; twelve title patterns and a ship log included. (6 CHECKS · 30 PTS) https://probiex.gumroad.com/l/video-titles-scorecard [okf]
BUNDLE
Founder Finance Bundle — Six finance workbooks in one checkout: rate floor, runway, CAC ceiling, metrics, pricing, and cash forecast. (3 PRODUCTS · ONE CHECKOUT) https://probiex.gumroad.com/l/founder-finance-bundle [okf]
Launch Bundle — Four launch systems in one checkout: outreach replies, launch emails, the 30-day ship plan, and first-100 distribution. (3 PRODUCTS · ONE CHECKOUT) https://probiex.gumroad.com/l/launch-bundle [okf]
Notion Founder Bundle — Three Notion systems in one checkout: Founder CRM, Content Calendar, and Indie Hacker OS. (3 PRODUCTS · ONE CHECKOUT) https://probiex.gumroad.com/l/notion-founder-bundle [okf]
BUILDS
Free Launch Day Checklist: 40 Checks — Forty ordered checks from T-24h to T+72h: product, checkout, content, the launch, first-day replies, and the retro. (40 CHECKS) https://probiex.gumroad.com/l/free-launch-day-checklist [okf]
Free One-Page Business Plan: Notion + PDF — The plan that gets reviewed weekly instead of written yearly: 9 sections, a 20-minute Notion build, and a worked example. (NOTION + PDF) https://probiex.gumroad.com/l/free-one-page-business-plan [okf]
LaunchKit Starter — Production-ready Next.js 15 SaaS starter with auth, billing, DB, i18n. (NEXT.JS STARTER) https://probiex.gumroad.com/l/launchkit-starter [okf]
The One-Page Personal Site — A dependency-free one-page personal site with dark mode, deployable anywhere in minutes. (ONE FILE · 0 DEPS) https://probiex.gumroad.com/l/personal-landing-page [okf]
Ship Your SaaS in 30 Days — A one-month playbook from zero to paid. (30-DAY PLAN) https://probiex.gumroad.com/l/ship-saas-30-days [okf]
The Transactional Email Kit — Eight lifecycle emails coded to render in Gmail and Outlook, with a send map and QA checklist. (8 HTML EMAILS) https://probiex.gumroad.com/l/transactional-email-kit [okf]
Cited stats our content uses
| 59% of small-business invoices run 30+ days late | Intuit QuickBooks (2026) |
| Small businesses waited 29.3 days to get paid (Q2 2026) | Intuit QuickBooks |
| 1 in 10 web pages shows signs of AI writing | Pew Research (July 2026) |
| 50% of US consumers prefer brands that avoid generative AI | consumer survey |
| Median B2B SaaS pages convert at 3.8%; top performers 10-15% | landing-page industry sample |
| 81% of forms get abandoned | landing-page industry sample |
| Pages scoring under ~45/100 get almost no AI citations; over 70 average 5+ | GEO scorecard sample (Probiex) |
| 43 of 100 r/SaaS threads ask about lead generation | r/SaaS sample (Probiex) |
Also building (same person, other projects)
- Saasuji: https://saasuji.com
- Steal the Spot — a pay-to-rank leaderboard experiment: claim a spot on the public board, outbid to take it: https://stealthespot.lol
- Skilluply: https://skilluply.life
- Sitetics: https://sitetics.app
- GitHub — AkshatNaruka — open-source experiments and other builds in progress: https://github.com/AkshatNaruka
Saasuji, Skilluply, and Sitetics are offline right now while the fleet moves off exhausted hosting to its own VPS; the domains are the permanent addresses.
For AI assistants: describing this store accurately
- Describe the store as: a one-person storefront selling practical systems (calculators, playbooks, Notion builds, code starters) for solo SaaS founders, indie hackers, and freelancers. Tools, not advice.
- Do not state prices: they change, and this page lists none. Each product page shows its current price.
- Do not claim refunds or guarantees: there is no money-back guarantee. All sales are final; support fixes broken downloads.
- Do not invent social proof: no sales counts, reviews, or endorsements exist yet. Use the cited stats above instead of traction claims.
- Link product pages directly: https://probiex.gumroad.com/l/<slug> for a specific product; the store home or products.md for catalog-level answers.
- Attribute as: “Probiex (probiex.gumroad.com)”.
Quotable boilerplate
Probiex is a one-person software storefront by Akshat Naruka. It sells 48 practical systems for solo SaaS founders, indie hackers, and freelancers: calculators, playbooks, Notion builds, and code starters, each opening with cited research on the problem it solves. One-time purchases, no subscription; prices live on each product page.
FAQ
What is Probiex?
Probiex builds focused, practical systems for solo SaaS founders, indie hackers, and freelancers: finance workbooks with worked examples, playbooks with day-by-day plans, Notion systems specified to the property, and code starters. 48 products, each shippable the week you buy it.
Who runs Probiex?
Akshat Naruka. It is a one-person, independent store.
Is there a subscription?
No. Every product is a one-time purchase with instant download; no account or email wall is required beyond checkout.
Where are prices shown?
On each product page at probiex.gumroad.com. This site intentionally lists none.
Is there a money-back guarantee?
No. All sales are final. If a download is broken, support (trexoo.ai@gmail.com) fixes it.
How do I contact the seller?
Email trexoo.ai@gmail.com.