A spreadsheet works for tracking reseller inventory when you buy in small volume and have time to enter data at a desk. A dedicated app works better when you buy on the go, need photos attached to each item, or want totals calculated for you without formulas to maintain. Neither is universally right; the choice depends on how and where you buy.
What a spreadsheet does well
- Full control over columns, formulas, and how the data is organized.
- No install, no new tool to learn if you already use spreadsheets for other parts of your business.
- Easy to filter, sort, and build custom pivot tables or charts.
- Works fine for people who buy occasionally and enter data later, at home, from receipts.
Where a spreadsheet struggles
- Typing on a phone at an auction or estate sale is slow, and most people end up scribbling on paper or their phone’s notes app and transcribing later, which introduces errors and forgotten details.
- Photos of items are awkward to attach to spreadsheet rows in any useful way.
- Formulas break silently if a row is inserted in the wrong place or a cell is overwritten.
- There is no natural place to record which event or sale an item came from unless you build that structure yourself.
- Spreadsheets do not work offline in the same reliable way a phone app does when you have no signal in a venue basement.
What a dedicated app does well
An app built for buying on the go is designed around the moment you actually make the purchase. LotsRoute, for example, lets you log an item with a photo, price, condition, and quantity right at the auction table or estate sale, before you have even left the room. Because it works fully offline, a weak signal at a rural estate sale or a packed auction house basement does not stop you from logging what you bought.
Items are tied to an event, so you can see everything you bought at a specific auction, estate sale, or flea market date without cross-referencing a separate list. The app also tracks total spent, total revenue, and unsold count automatically, so you are not maintaining formulas that can break.
Where an app falls short
- Less flexible than a spreadsheet if you want highly customized reports or unusual columns.
- You are relying on the app’s structure rather than building your own from scratch.
- LotsRoute specifically does not calculate per-item profit automatically or integrate with marketplaces, so you still need to record your selling price and do the profit math yourself, or in a spreadsheet, if you want that level of detail. See our guide to tracking flip profit for the full method.
A closer look at the offline problem
Signal strength is easy to overlook until you are standing in an auction house basement or a farmhouse garage with no bars on your phone. A cloud-based spreadsheet app can lock you out of editing entirely in that moment, or worse, silently fail to save a row you just typed. A notebook app on your phone might save locally, but then you are retyping everything into a spreadsheet later, which is exactly the delay that causes forgotten details.
This is one of the clearest differences between the two approaches. A spreadsheet that lives in the cloud depends on a connection to save your work reliably. An app built to work fully offline, the way LotsRoute does, saves everything to the phone itself, so a dead zone at an estate sale does not put your purchase records at risk.
Cost and setup time
A spreadsheet has no direct cost if you already have access to spreadsheet software, but it does have a setup cost: building out columns for event, price, buyer’s premium, condition, and selling details, plus formulas for totals, takes real time to get right, and mistakes in a formula can go unnoticed for months. A purpose-built app arrives with that structure already in place. LotsRoute is free with no in-app purchases, so there is no cost trade-off between the two options, only a trade-off in flexibility versus convenience.
How to decide
If you buy a handful of items a month and enter data calmly at a desk, a spreadsheet is perfectly reasonable and costs nothing extra to set up. If you buy frequently, at in-person events, and want to capture details in the moment rather than reconstruct them later, an app built for that workflow will save you time and reduce mistakes like forgetting to log the buyer’s premium on an item.
Some resellers use both: LotsRoute for capturing purchases at the event with photos, then CSV export from LotsRoute into a spreadsheet for deeper analysis or tax preparation. You do not have to pick one tool forever.
