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SaaS ideas, mined from what people actually complain about.

Every idea comes from real Reddit posts, was researched against today's competitors, and survived an independent skeptic before it made the list.

Unfair Out-of-Stock Penalties

Gig shoppers are penalized for store inventory errors and out-of-stock items they cannot verify or prove, with rejected photo evidence and auto-denied appeals.

In their words

I often see competitors running ads that direct users to collections where out-of-stock products appear in the top positions

r/ecommerce on Reddit

Can you handle showing ‘Pre-Order’ (Full Payment) + ‘Notify Me’ simultaneously if Inventory <=0 but Continue Selling = True?

r/shopify on Reddit

they refused to answer the 6 texts I sent and the 2 calls from me

r/doordash on Reddit

If there’s no ground beef, no need to shop the other ingredients because, can’t make the recipe that this order is for.

r/Sparkdriver on Reddit

The first can I pull from the shelf was expired by 1 month

r/doordash on Reddit

Every item that showed up on the unfound list today was “Found on Shelf”, most of them were fully stocked.

r/publix on Reddit

Only Whole Foods has a meltdown over something being out of stock. The micromanagement is getting worse.

r/wholefoods on Reddit

When an order pops up for me all it shows is tiny little squares of an image of the item

r/InstacartShoppers on Reddit

We've had a massive uptick of customers who come in believing the website told them that something was available, when it never was.

r/tractorsupply on Reddit

That IC safeguard is officially untrustworthy to me.

r/InstacartShoppers on Reddit

The system doesn't work and Instacart shoppers (the bad ones) are marking off items that are full on the shelf.

r/publix on Reddit

shoppers are just marking them inf without asking

r/wholefoods on Reddit

I had a client and they weren't to bothered if they sold the last item twice, they would call the customer, apologise, and offer a discount on an alternative and keep the sale.

Hacker News

Gig delivery shoppers

Where they talk

  • r/InstacartShoppers
  • r/doordash_drivers
  • r/Sparkdriver
  • r/DoorDashDrivers
  • r/DoorDash_Dasher
  • r/wholefoods
  • r/walmartogp
  • r/walmart

Tools they use today

  • Instacart
  • DoorDash
  • Spark driver app
  • Walmart app
  • Microsoft Store
  • Pinpoint
  • Uber Eats
  • Vizpick

Why those fall short

  • customers rarely answer; app forces shopper to guess or mark missing
  • order preview shows only tiny item thumbnails, no size or bulk warnings
  • notes only visible after starting shopping; items barely recognizable
  • no store-level oversight or way to separate shopper nil picks from real picks
  • no critical-item or low-inventory alert before shopping the rest