Monetize your app
without touching
your users' experience.
Our Rust SDK turns unused bandwidth into steady revenue, up to $0.40 per user per month, earned a day at a time. Your users never see an ad or feel a slowdown. It runs quietly on resources the device isn't using and stops the moment they're needed.
- 6
- PLATFORMS SHIPPING
- ~4 min
- MEDIAN INTEGRATION
- 2015
- RAYOBYTE, EST.
- 100
- FREE DEVICES, NO CALL
Your first 100 devices go live today. No sales call needed.
We verify every publisher before payout. A trustworthy network is worth more to us than a big one.
Cash Raven SDK platforms: ELECTRON / NODE.JS, WINDOWS · cr_sdk.dll, macOS · universal dylib, LINUX · libcr_sdk.so, ANDROID · Kotlin / Java, ANDROID TV · FIRE TV, SAMSUNG TIZEN, C++ · C# · RUST · GO · PYTHON · SWIFT.
Live in four steps.
This is the real onboarding wizard from the dashboard. Click through it now. Downloads unlock once you create your account.
README.md and AGENTS.md included.
Point your coding agent at it and let it do the setup.
Create your account and add your app
Sign up, name your app, and get a developer key instantly. Each app is independent, with its own key and its own device allowance. Your first 100 devices go live immediately.
- No sales call to start
- Publishers are verified and KYC'd before payout
- Past 100 devices, partnerships sets your custom rate
const { CashRaven, showConsent } = require("@cashraven/electron");
const cr = new CashRaven({ developerKey: "YOUR_DEV_KEY", uid: "user-123" });
// Show OUR consent screen; sharing starts only if the user accepts:
if (await showConsent(cr, { parent: mainWindow })) cr.start();
// required: an opt-out control that calls cr.optOut();Need a platform or language we don't list? Tell us — we ship new bindings in about a week.
Written in Rust. Sized like nothing.
The same Rust core sits under every SDK, Electron included, bound through a stable FFI with no native rebuilds. It only uses what the device isn't using, and it yields first. Every guarantee below is enforced inside the SDK itself. There's no API to turn them off.
Opt-in first. Opt-out always.
The SDK ships this agreement. Sharing only begins after the user accepts it, and we won't approve a build without a visible opt-out control. Theme it freely; customize the wording with compliance approval. If a protection trigger hits, the SDK opts the device out on its own.
Cash Raven lets this app earn by using a small, capped portion of your device's WiFi bandwidth for vetted use cases. This is optional — you can decline now and opt out at any time.
By agreeing below, you acknowledge that your device will be used to relay web traffic (learn how Cash Raven works at cashraven.io/faq).
Your personal information is NEVER accessed. The only use of your device is your IP address and a portion of your bandwidth. Read more about our protections at cashraven.io/safety-controls.
wording synced live from our admin console — update once, everywhere
Try it for real: the consumer Cash Raven app on Google Play runs this exact engine. Our per-platform sample apps are downloadable too — plain UI, they're reference builds, not products.
You're skeptical. Good. So are we, about who buys.
Cash Raven is Rayobyte, in business since 2015. The bandwidth your users share is used almost entirely for public web data collection: the price comparisons that keep e-commerce honest, flight and hotel search, market research, and the datasets behind the AI tools you already use. Collecting public data is legal, and we intend to keep it clean.
Every device, country and dollar — live.
Devices online, countries, stability, earnings by country, your rate card and payment history — per app, updating live. This is the actual dashboard you get.
Up to $0.40 per user, per month.
The rate is monthly; the money is earned daily. Every day one of your users passes the bar, that day is worth a day's share of the monthly rate, and your month is the sum of its days. Move the slider for a rough sense of scale. Your full rate card is in your dashboard the moment you sign up.
Illustrative at the top rate, for that many users passing the 60-minute bar every day of the month. Earnings accrue a day at a time, so a month with quieter days lands below this. Sign up to see your exact rate card in your account.
A user counts for a day once their device has been sharing for 60 minutes that day, and users are counted once per network connection — so several devices on one home or office connection count as a single user. Days below the bar earn nothing.
Ship it this afternoon.
Sign up, add your app, download the SDK, and put 100 devices on the network without talking to anyone. Once you pass 100, we'll talk pricing.
The things developers ask first.
How does Cash Raven monetize an app without ads?
Cash Raven's SDK relays a small, capped share of a consenting user's unused bandwidth for public web data collection, and pays the app's publisher for it. Users are never shown an ad and never see a slowdown — the SDK yields the moment the device needs its resources.
How much can a developer earn with Cash Raven?
Up to $0.40 per user per month. Earned daily — a user counts for a day once their device has been sharing for 60 minutes, and each qualifying day is worth one day's share of the monthly rate. A publisher whose users qualify 45,000 times across a 30-day month earns up to $600 that month. The full per-country rate card is in the dashboard after sign-up.
How is a month's earnings calculated?
Day by day. A user counts for a day once their device has been sharing for 60 minutes in that UTC day, and that day is worth the monthly rate divided by the number of days in the month; the month is the sum of its days. Users are counted once per network connection — so several devices on one home or office connection count as a single user. If 2,000 users qualify on days 1–15 and 1,000 on days 16–30 of a 30-day month, that is 45,000 user-days, and at the top rate 45,000 × ($0.40 ÷ 30) pays $600.
Do I need to talk to sales to start?
No. Sign up, add your app, and your first 100 devices go live immediately. Past 100 devices, new devices are refused until partnerships@cashraven.io sets custom pricing and compliance approves the build — usually within a business day.
Which platforms does the Cash Raven SDK support?
Electron and Node.js, Windows (cr_sdk.dll), macOS (universal dylib), Linux (libcr_sdk.so), Android including Android TV and Fire TV (an AAR via Gradle or Maven), and Samsung Tizen (JavaScript, beta). Go, Python, Swift, C, C++, C# and Rust bind through the stable C ABI. If your platform or language is missing, we ship a binding in about a week.
What do users consent to, and can they opt out?
Opt-in is the only code path that enables sharing. Every app must ship a visible opt-out control, and compliance verifies it in the submitted build before the device cap lifts. The SDK also opts a device out on its own when a protection limit — a data cap, or sustained load on the device — is reached.
What is the bandwidth actually used for?
Public web data collection: price and availability monitoring, flight and hotel search, SEO and ad verification, market research, and AI training data. A permanent, growing blacklist blocks .gov, .edu, banks and financial institutions, card processors, login endpoints, sensitive APIs, any reported-abuse domain, and users' own local networks.
How does Cash Raven protect a user's device?
Named guarantees enforced inside the compiled Rust core, with no API to disable them: a bandwidth ceiling, daily and monthly data caps (tighter on mobile data than WiFi), a CPU and RAM budget, a port and network denylist, and no access to anything personal — only the IP address and the bandwidth. The relay is a background task and yields to the app it lives in.
Ship it this afternoon.
Sign up free, drop the SDK in, and watch your first devices tunnel within the hour.