Turn messy marketing numbers into clear decisions.
EshopPick is a practical marketing toolkit: free calculators, campaign templates, platform references and guides that help you plan, measure and improve the next move.
Keep the offer. Fix the landing-page promise.
Start with a useful answer
Free marketing tools
Search-friendly tools with formulas you can audit, practical outputs and no payment gate.
UTM Builder
Create clean UTM-tagged campaign URLs for GA4, Google Ads, Meta, email and social campaigns. Free, private and no signup required.
ROAS Calculator
Calculate ROAS, contribution profit, ACOS and break-even ROAS from your ad spend, revenue and variable costs. Free with no signup.
Break-Even ROAS
Calculate break-even ROAS (BEROAS) and max CPA for ecommerce campaigns using product cost, shipping, fees and ad spend. Free, instant and no signup.
Conversion Rate
Calculate website sales conversion rate, purchase conversion rate, average order value, revenue per visitor and customer acquisition cost from traffic, orders, revenue and ad spend.
Marketing Metrics
Calculate CTR, CPC, CPM, conversion rate, CPA and ROAS from one campaign dataset. Free, instant and easy to audit.
Subject Line Tester
Check email subject-line length, readability, urgency and spam-risk patterns before you send. Free, private and no signup.
CAC + LTV Calculator
Calculate customer acquisition cost, revenue LTV, contribution LTV, payback orders and the LTV:CAC ratio from your own numbers.
AOV Calculator
Calculate average order value, items per order, average item price, conversion rate, revenue per visitor and the impact of an AOV lift.
CTR Calculator
Calculate click-through rate from impressions and clicks, then see CPC and CPM when you add ad spend. Free and browser-first.
CPM Calculator
Calculate CPM, total ad spend, cost per impression and impressions from any campaign budget and delivery numbers.
CPC Calculator
Calculate cost per click from ad spend and clicks, with CTR and CPM context when you add impressions. Free for Google, Meta and other campaigns.
MER Calculator
Calculate blended MER, marketing spend as a share of revenue, contribution profit and break-even MER across every channel. Free and private.
Ecommerce Profit
Estimate ecommerce revenue, variable costs, net profit, profit margin, ROI and break-even orders from your own product and marketing inputs. Free with editable assumptions.
CPA Calculator
Calculate cost per acquisition, required ad spend or conversions from a target CPA. Free, browser-first and useful for paid search, paid social and lead campaigns.
Contribution Margin
Calculate contribution margin per order, margin percentage, profit after fixed costs and break-even orders after COGS, fulfillment, fees and ad spend.
Break-Even Units
Find the ecommerce units and revenue needed to cover fixed costs, then model a target profit, daily sales target and profit at planned volume.
Shopify Profit
Calculate Shopify store revenue, payment fees, product costs, profit margin and break-even orders with editable assumptions. Free and no signup.
Shopify Fees
Estimate Shopify subscription, payment processing and third-party transaction fees from monthly sales, orders and editable rates. Free calculator with transparent assumptions.
Research-backed, not filler
Guides that explain the decision
Each guide answers a practical marketing question, explains the assumptions and links back to a useful free tool.

Learn what UTM parameters do, how to name them consistently and how to QA campaign links before they pollute your GA4 reports.

A practical ROAS guide covering the formula, reported vs contribution-adjusted ROAS, ACOS, MER and why a high-looking return can still lose money.

Learn how to calculate break-even ROAS, maximum CPA, target ROAS and commercial ad budget from contribution margin, product costs and fees, then test the result in a free calculator.

A current social media image-size reference with feed, story, video, cover and thumbnail dimensions plus safe-zone guidance.
Practical seller playbooks
Answer the next ecommerce question
Decision-led guides for product research, TikTok Shop operations and ecommerce advertising.
TikTok Shop Deposit: POP Rules & Refunds (2026)
TikTok Shop deposit guide for sellers: understand US cross-border POP, the $1,500-per-shop example, category rules, refunds, cash-flow impact and scam checks.
Read playbookTikTok Shop Payout Schedule & Settlement Process (2026)
TikTok Shop payout and settlement process for US sellers: see the 1–31-day post-delivery window, payout schedule, reserves, held funds and bank timing.
Read playbookTikTok Shop Category Requirements (US 2026): Who Needs Approval?
TikTok Shop category requirements for US sellers: see which products need category or product approval, the documents to prepare and how to fix a rejection before sourcing inventory.
Read playbookTikTok Shop Product Listing SEO Strategy (2026): Titles, Keywords & Search
A practical TikTok Shop product listing SEO strategy: find buyer language, write accurate titles, use Search keywords and Product highlights, complete attributes and align content with the listing.
Read playbookTikTok Shop Local vs Cross-Border vs ACCU Store? 2026 Decision Tree
Should you open a TikTok Shop local, cross-border or ACCU store? Compare US entity, fulfillment, payouts, compliance and costs in a 2026 decision tree for small sellers.
Read playbookBest TikTok Shop Product Research Tools (2026): Free & Paid
Best TikTok Shop product research tools in 2026: compare free and paid options for demand, competition, creators and margin validation before buying inventory.
Read playbookTikTok Shop Taxes for US Sellers (2026): 1099-K & Deductions
TikTok Shop taxes for US sellers: understand 1099-K thresholds, payout reconciliation, sales tax, deductions and a practical close process.
Read playbookEcommerce Performance Max Management Guide (2026): Feed, Tracking & ROAS
Performance Max management for ecommerce: fix Merchant Center feeds, conversion tracking, asset groups, search themes and contribution ROAS before changing budget.
Read playbookHow to Start TikTok Shop Affiliate With No Followers (2026)
Can you start TikTok Shop affiliate with 0 followers? Check US eligibility, seller invites, Product Marketplace, sample rules and a first-sale plan.
Read playbookTikTok Shop LIVE Selling Tips (2026): Convert Viewers
TikTok Shop LIVE selling tips for more clicks and orders: use hooks, demos, product pinning, buyer questions and post-LIVE diagnosis.
Read playbookUse the free answer first. Automate the workflow when it gets repetitive.
EshopPick is the public resource layer. For teams that want deeper campaign analysis, creative review and cross-channel growth workflows, GrowthGPT sits one layer above the reference material.
- 01 Search the question
- 02 Use the free tool
- 03 Read the methodology
- 04 Take the next action
Download and use
Templates for the next campaign
Marketing Plan Template
A practical one-page plan for goals, audience, channels, budget, milestones and KPIs.
Content Calendar Template
A CSV starter sheet for planning topics, search intent, status, owner and distribution.
TikTok Shop Product Research Template
A free TikTok Shop product research spreadsheet for demand evidence, competition, compliance, contribution margin and test decisions.