I’ve Made $880.05 Getting Cash Back on Gas With This Free App — Here’s How It Works
If you’re filling up your Mustang every week anyway, you might as well get paid for it.
That’s the simplest way I can describe Upside, the free gas cash back app I’ve been using for the past two years. No gimmicks, no subscriptions, no points that expire. Just real cash back every single time you stop for gas — which, if you’re anything like me, is a weekly habit that was never going to stop.
After two years of consistent use, I’ve earned $880.05 in cash back on purchases I was already going to make. I didn’t change where I get gas. I didn’t change how I pay. I just claimed the offer before I pulled up to the pump.
What Is the Upside App?
Upside is a cash back program available on iOS and Android that pays you real cash back at over 30,000 participating gas stations nationwide. It works at major brands like Shell, Circle K, BP, Sunoco, Marathon, Casey’s, Murphy’s, and more.
Beyond gas, the app also offers cash back at thousands of restaurants (up to 45%) and grocery stores (up to 30%), but for Mustang owners who fuel up regularly, the gas cash back alone makes it well worth having on your phone.
How the Upside Gas Cash Back App Works
The process is straightforward enough that it takes maybe 20 seconds before each fill-up:
- Open the app and find a participating gas station near you
- Claim the offer before you pay
- Fill up as usual using your credit or debit card
- Earn cash back — it posts to your account within 24 to 48 hours
That’s it. You don’t have to change how you pay. You don’t have to use a special loyalty card. You just claim the offer, fill up, and the cash back shows up in your account automatically.
The only step people sometimes miss is claiming the offer before the purchase. That part matters — the app needs to match your transaction to the offer you claimed. Set a habit of opening the app as you pull into the station and you’ll never miss a fill-up.
How Much Cash Back Can You Earn on Gas?
Cash back amounts vary by location and day, but gas offers typically range from a few cents per gallon up to 25 cents or more per gallon, depending on the station and current promotions. The amount you earn adds up fast when you’re filling a 16-gallon tank every week.
At a conservative average of 10 cents per gallon and a 16-gallon tank, that’s $1.60 per fill-up. Over 52 weeks, that’s over $83 per year from gas alone — just from not skipping the 20-second step before you pump.
Over two years of consistent use, I’ve personally earned $880.05. That’s real money back in my pocket for something I was going to do regardless.
Can You Stack Upside With Other Gas Station Rewards?
Yes — and this is where the app gets even better. At many participating stations, you can combine Upside cash back with your existing loyalty programs, like BPme Rewards or Exxon Mobil Rewards+. Check the offer terms in the app, but stacking rewards is allowed at many locations.
You’ll also continue to earn any cash back, miles, or points from whatever credit card you use to pay at the pump. So if you’re already earning credit card rewards on gas purchases, Upside just layers on top.
How Does Upside’s Referral Program Work?
One of the most underrated features of Upside is the gas referral program. When you share your personal referral link or code with someone new to the app, you both get rewarded. If you’re interested in earning cashback on the Upside app, we would love for you to use our referral link so we can both earn! Sign up using Mustang Fan Club’s Upside referral link.
Here’s how it works:
- The new user gets 15 cents per gallon extra cash back on their first gas fill-up
- The new user also gets 10% extra cash back on their first restaurant or grocery purchase
- You earn a referral bonus as well
- Every time your referral fills up with Upside in the future, you earn 1 cent per gallon on their purchases — automatically, indefinitely
There’s no cap on how many people you can refer, which means the residual earnings from your referral network can quietly add up over time without any extra effort on your part.
How to Cash Out Your Earnings
Cashing out with Upside is simple. Once you’ve earned cash, you can transfer it to:
- Your bank account (typically arrives within two days)
- PayPal
- Digital gift cards from retailers like Amazon, Starbucks, Walmart, and more
One thing to know: if your balance is under $15 when you cash out, there’s a $1 fee. So it’s worth waiting until you’ve built up a bit before withdrawing.
Why I Keep Using Upside After Two Years
The reason I’ve stuck with this app is simple: it requires almost zero effort for something I already do every week. I’m not going out of my way to earn this cash back. I’m just opening an app I have on my phone before I do something I was already going to do.
Gas is one of those non-negotiable expenses. Whether you’re driving a GT, a Dark Horse, a Mach 1, or a work truck, you’re stopping at the pump regularly. Getting paid for those fill-ups is about as close to free money as it gets.
$863 over two years. That’s a set of tires. That’s track day entry fees. That’s a weekend trip. It’s real money.
Download Upside and Get a Bonus on Your First Fill-Up
If you’re not already using Upside, now’s a good time to start. Use my referral link or code below, and you’ll get 15 cents per gallon extra cash back on your first gas fill-up, plus 10% extra cash back on your first restaurant or grocery purchase.
Use code JARON7543 or click the link below:
Download Upside and start earning cash back on gas
It’s free to download, free to use, and takes about two minutes to set up. After that, it’s just a habit — and a profitable one.


