10 vs DEF Search
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
10
This app helps truckers find and pay less for diesel fuel nationwide. It provides a fuel map with discounts at popular truck stops and allows secure payment directly through the app. Users can track their purchases, rewards, and savings.
- Nationwide fuel map
- Diesel discount finder
- Secure in-app payment
- Fuel purchase tracking
- Rewards and savings tracker
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The 10–4 by WEX™ app is an all-in-one fuel savings app for truck drivers, independent owner-operators, and contractors. Instantly find and pay less for diesel using our nationwide fuel map — and enjoy fuel discounts at truck stops you love including Love's, TA Petro, Circle K, Speedway, Racetrac and more. No transaction or monthly fees. Just instant savings. Drivers saved an average of $377 per month in fuel using the 10-4 by WEX app.* Here’s how it works: 1. Download the 10-4 by WEX app. 2. Create an account and add your credit or debit card. 3. Use the fuel map to find diesel stations along your route. 4. Activate at the pump and pay using a secure fuel code. 5. Track your fuel purchases, rewards, and savings in the app. *Average monthly discount based on app data from 10/1/25 to 12/31/25. Actual savings may vary.
DEF Search
Easily locate Diesel Exhaust Fluid (DEF) pumps nearby with an interactive map. Get directions, confirm station status, and contribute to keeping data accurate for all diesel vehicle owners.
- Interactive DEF pump locator map
- Search by address, city, or ZIP code
- Use current location for closest pump
- One-tap directions via Apple/Google Maps
- Confirm station status
- Report/suggest station updates
- Save favorite stations
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DEF Search is the fastest way to find Diesel Exhaust Fluid (DEF) pumps near you. Whether you're a long-haul trucker, fleet driver, RV traveler, or diesel pickup owner, running low on DEF shouldn't slow you down. DEF Search shows you nearby stations on a clean, easy-to-read map with addresses, descriptions, and one-tap directions in Apple Maps or Google Maps. WHY DEF SEARCH • Built for the road — large tap targets, fast map, minimal clutter • Crowd-sourced and verified — drivers like you keep the data fresh • Free to use — no subscriptions, no paywalls • Works in the USA and Canada — search by city, state, or current location KEY FEATURES • Interactive locator map of DEF pumps • Search by address, city, or ZIP code • Use your current location to find the closest pump • One-tap directions in Apple Maps or Google Maps • Confirm a station is still open and pumping • Report closed, moved, or incorrect locations • Suggest new stations to help other drivers • Save Favorite stations FOR TRUCKERS Skip the wrong-turn detours. Find DEF pumps before you exit the highway. FOR RV & DIESEL DRIVERS Plan refills along your trip and never get stranded with a DEF warning light. COMMUNITY POWERED Every confirmation, report, and suggestion makes the map better for the next driver. Help us build the most accurate DEF station directory on the road. PRIVACY FIRST We only use your location to show nearby stations and provide directions. No tracking, no selling your data. Download DEF Search and never hunt for diesel exhaust fluid again.
Screenshots
Verdict
The clearest difference is ratings volume: 10 at 4.5K against DEF Search's 1. 10 also leads on chart position (#132 vs unranked). DEF Search's advantage is rating (5.0 vs 4.8) and iOS requirement (15.0 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
DEF Search holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: 10 has 4.5K ratings behind it against 1, so its average is the more settled of the two.
10 ships an update every 5 days, DEF Search every 9 days. The most recent releases landed on November 12, 2026 and November 8, 2026 respectively.
| Parameter | 10 | DEF Search |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (4.5K ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 34.2% of reviews | — |
| Number of ratings | 4.5K — better | 1 |
| Update frequency | Every 5 days — better | Every 9 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Best chart rank | #132 — better | — |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 111 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | WEX, Inc. | David Brownlow |
Customer experience
10
DEF Search
In-app purchases
10
No in-app purchases
DEF Search
No in-app purchases






