# Sharklio > Sharklio is a pay-per-result advertising platform and offerwall. Advertisers pay only for completed and approved actions, and publishers earn by showing Sharklio offers to their own users. Advertisers create task campaigns (users complete an action and send proof) or click campaigns (users visit a page for a set time), target countries and devices, and set their own price per result. Every campaign is reviewed by the Sharklio team before it runs. Publishers add the Sharklio offerwall or API to their websites and apps and reward their users in their own currency. ## Main pages - [Pay-Per-Result Advertising & Offerwall Worldwide](https://sharklio.com/): Advertise worldwide and pay only for approved results. Set your own price per country for installs, sign-ups, follows, and visits. Launching soon. - [How Pay-Per-Result Advertising Works](https://sharklio.com/how-it-works): See how Sharklio works: create a task or click campaign, target any country worldwide, pass a quick staff review, and pay only for approved results. - [Why Choose Sharklio: Pay Only for Results](https://sharklio.com/why-sharklio): Why pay-per-result beats paying for impressions: worldwide targeting, your own price per country, staff-reviewed campaigns, and built-in fraud checks. - [Terms of Service](https://sharklio.com/terms): The terms that govern Sharklio for advertisers, publishers, and the end users of publisher properties, including payments, reviews, and liability. - [Privacy Policy](https://sharklio.com/privacy): How Sharklio collects, uses, shares, and protects personal data of advertisers, publishers, and end users, and the rights you have over it. - [Sharklio Academy](https://sharklio.com/academy): Practical guides for advertisers and publishers. ## Academy for advertisers - [How It Works: Pay-Per-Result Advertising on Sharklio](https://sharklio.com/academy/getting-started/how-it-works): The whole model in five minutes: who the three parties are, what you pay for, and how a campaign moves from idea to approved completions. - [Where to Advertise in 2026: 6 Channels Compared](https://sharklio.com/academy/strategy/where-to-advertise-in-2026): Search, social, influencers, affiliates, display, and pay-per-result offerwalls: what each channel is good at, how it charges you, and how to pick one worldwide. - [How to Advertise on a Small Budget in 2026](https://sharklio.com/academy/strategy/advertise-on-a-small-budget): A practical plan for finding customers with $50 to $500: pick one goal, use free channels, test paid ones cheaply, pay for results instead of reach, and reinvest what works. - [Pay Only for Approved Results: How It Works](https://sharklio.com/academy/strategy/pay-only-for-approved-results): Why paying for completed actions instead of impressions protects your budget, how approval works on Sharklio, and when this model is not the right fit. - [CPM vs CPC vs CPA: Which Pricing Model to Choose](https://sharklio.com/academy/strategy/cpm-vs-cpc-vs-cpa): What CPM, CPC, and CPA mean, how to compare them on the same scale with one simple formula, and how to pick the right model for your goal. - [CAC vs CPA vs LTV: What a Customer Is Really Worth](https://sharklio.com/academy/strategy/cac-vs-cpa-vs-ltv): The difference between CAC, CPA, and LTV, how to calculate each one, what a healthy LTV to CAC ratio looks like, and how to turn it into a bid you can afford. - [Incentivized Traffic Explained: When It Is Worth It](https://sharklio.com/academy/strategy/incentivized-traffic-explained): What incentivized traffic is, which goals it suits, where to be careful, and how to design tasks that bring real value instead of empty numbers. - [Ad Fraud and Bot Traffic: How to Spot Fake Results](https://sharklio.com/academy/strategy/ad-fraud-and-bot-traffic): The common types of ad fraud in 2026, the warning signs in your data, and practical ways to stop paying for bots, click farms, and fake sign-ups. - [Create Your First Campaign, Step by Step](https://sharklio.com/academy/getting-started/create-your-first-campaign): A guided walkthrough of the campaign builder, section by section, with the settings that matter most for a first campaign. - [Write Instructions and Proof Requirements That Pass Review](https://sharklio.com/academy/campaigns/write-instructions-that-pass-review): Clear instructions pass review faster, get completed more often, and lead to fewer rejected completions. Here is how to write them. - [Set Bids by Country and Target the Right Audience](https://sharklio.com/academy/targeting-bids/set-bids-by-country): How per-country bids, quick add groups, audience filters, and caps work together, and how to pick a starting price. - [Review Completions and Choose the Right Approval Window](https://sharklio.com/academy/reviewing/review-completions-and-approval-windows): How reviewing works, what happens when the window ends, and how to reject fairly without losing users. - [How Your Advertiser Balance Works](https://sharklio.com/academy/billing/how-your-balance-works): When your balance is charged, what the $1 minimum is for, and what happens when it runs low. - [What Is an Offerwall? How It Works in 2026](https://sharklio.com/academy/glossary/what-is-an-offerwall): How offerwalls work for users, advertisers, and publishers, which offers they show, and what separates a trustworthy offerwall from a bad one. - [Tier 1, 2 and 3 Countries Explained: The 2026 List](https://sharklio.com/academy/glossary/tier-1-2-3-countries): What Tier 1, Tier 2, and Tier 3 countries mean in advertising, a common 2026 list, what changes from tier to tier, and how to choose countries for a worldwide campaign. - [What Is a Postback URL? S2S Tracking Explained](https://sharklio.com/academy/glossary/what-is-a-postback-url): How server-to-server postbacks report conversions, which macros they carry, how to secure them with a signature, and how to fix the most common postback problems. - [What Is CPI? Cost Per Install Explained](https://sharklio.com/academy/glossary/what-is-cpi): What cost per install means, how to calculate it, what moves the price, how CPI compares with CPA and CPE, and how to find the most you can afford to pay per install. - [Advertising Glossary: 55 Terms Explained Simply](https://sharklio.com/academy/glossary/advertising-glossary): CPM, CPC, CPA, CPI, CTR, ROAS, EPC, postbacks, offerwalls, and more: the advertising terms you meet every day, explained in plain English. - [What Is ROAS? Formula, Examples, and Good Targets](https://sharklio.com/academy/glossary/what-is-roas): How to calculate return on ad spend, how it differs from ROI, how to find your break-even ROAS, and how pay-per-result pricing makes it predictable. - [Secure Your Sharklio Account](https://sharklio.com/academy/security/secure-your-account): Strong passwords, Google sign-in, login 2FA via email, trusted devices, and what to do if something looks wrong. ## Academy for publishers - [How the Sharklio Offerwall Works for Publishers](https://sharklio.com/academy/publisher-basics/how-the-offerwall-works): Who does what between you, your users, and Sharklio, which offers appear on your wall, and how a completion becomes a reward. - [Get Your Publisher Account Approved](https://sharklio.com/academy/publisher-basics/get-approved-as-a-publisher): What our team looks at when you apply, the rules your property must meet, and a checklist to run before you apply. - [AdSense Alternatives: 8 Ways to Monetize a Website](https://sharklio.com/academy/monetization/adsense-alternatives): Display networks, native ads, affiliate links, sponsorships, memberships, digital products, offerwalls, and rewarded ads compared, with who each one suits and how to combine them. - [How to Start a Rewards (GPT) Website in 2026](https://sharklio.com/academy/monetization/start-a-rewards-website): What a get-paid-to site is, how it makes money, and the steps to launch one: offer sources, a reward currency, payouts, fraud checks, retention, and your first users. - [Traffic Quality Rules for Publishers](https://sharklio.com/academy/traffic-quality/traffic-quality-rules): What counts as genuine traffic, what is never allowed, and what happens when our checks find a problem. - [Publisher Earnings, Settlement, and Reversals](https://sharklio.com/academy/earnings/publisher-earnings-and-reversals): When an earning is confirmed, where your revenue share and minimum payout are set, and how reversals and reporting gaps are handled. - [eCPM and EPC Explained for Publishers](https://sharklio.com/academy/earnings/ecpm-and-epc-explained): What eCPM and EPC mean for an offerwall, how to calculate them from your own numbers, and the levers that raise your earnings per user. - [What Is an Offerwall? How It Works in 2026](https://sharklio.com/academy/glossary/what-is-an-offerwall): How offerwalls work for users, advertisers, and publishers, which offers they show, and what separates a trustworthy offerwall from a bad one. - [Tier 1, 2 and 3 Countries Explained: The 2026 List](https://sharklio.com/academy/glossary/tier-1-2-3-countries): What Tier 1, Tier 2, and Tier 3 countries mean in advertising, a common 2026 list, what changes from tier to tier, and how to choose countries for a worldwide campaign. - [What Is a Postback URL? S2S Tracking Explained](https://sharklio.com/academy/glossary/what-is-a-postback-url): How server-to-server postbacks report conversions, which macros they carry, how to secure them with a signature, and how to fix the most common postback problems. - [What Is CPI? Cost Per Install Explained](https://sharklio.com/academy/glossary/what-is-cpi): What cost per install means, how to calculate it, what moves the price, how CPI compares with CPA and CPE, and how to find the most you can afford to pay per install. - [Advertising Glossary: 55 Terms Explained Simply](https://sharklio.com/academy/glossary/advertising-glossary): CPM, CPC, CPA, CPI, CTR, ROAS, EPC, postbacks, offerwalls, and more: the advertising terms you meet every day, explained in plain English. - [What Is ROAS? Formula, Examples, and Good Targets](https://sharklio.com/academy/glossary/what-is-roas): How to calculate return on ad spend, how it differs from ROI, how to find your break-even ROAS, and how pay-per-result pricing makes it predictable. - [Secure Your Sharklio Account](https://sharklio.com/academy/security/secure-your-account): Strong passwords, Google sign-in, login 2FA via email, trusted devices, and what to do if something looks wrong. ## Contact - Support: support@sharklio.com