Comparison

Pure Gas vs Crowd Alerts

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Pure Gas

Find stations selling ethanol-free gasoline across the United States. This app helps locate fuel for classic cars, boats, and other engines that perform better on pure gas. It offers trip planning, fuel tracking, and integrates with navigation apps.

Highlights
  • Interactive map of ethanol-free stations
  • Searchable station list sorted by distance
  • Filter by octane grade
  • Trip planning with fuel stops
  • Real MPG calculation
  • CarPlay and widget support
  • Privacy-focused, no account needed
Features
Read full description

Pure Gas helps you find ethanol-free gasoline anywhere in the United States — for your classic car, boat, motorcycle, generator, lawn mower, or any engine that runs cleaner on pure gas. Powered by the community-maintained data from pure-gas.org, Pure Gas maps thousands of verified ethanol-free stations and sorts them by distance from wherever you are. FIND PURE GAS FAST • Interactive map with every nearby ethanol-free station • Searchable list sorted by distance • Filter by octane grade to find exactly the fuel you need • Tap to call a station, or get directions in Apple Maps, Google Maps, or Waze • Save your favorite stations for one-tap access, and hide the ones you don't want to see • Preview a station with Look Around before you go (Pure Gas Pro) PLAN A TRIP (PURE GAS PRO) • Plan a route and Pure Gas places the ethanol-free fuel stops along it, so your tank never runs past empty • Range is built from your vehicle's tank size and real tracked MPG, with a reserve cushion you control • See each leg's distance, an estimated gallons-and-cost total, and honest warnings wherever pure gas can't cover the whole route • Mark stops as you visit them and navigate just the rest of the route • Share the plan with a co-driver, or send the stops to Apple Maps, Google Maps, or Waze EVERYWHERE YOU DRIVE • CarPlay — the nearest pure-gas stations on your dashboard, filtered by grade, plus your next trip stop with Pure Gas Pro • Home Screen widgets for the closest station, showing the octane grade you choose • Control Center controls to jump to the nearest pure gas, or straight to logging a fill-up (Pure Gas Pro) • Siri and Shortcuts — ask for the nearest ethanol-free gas or to plan a trip • Spotlight finds your favorite and recently viewed stations TRACK YOUR FUEL • Log fill-ups and let Pure Gas calculate your real MPG • Log a fuel-up right from a station you found in the app • Manage multiple vehicles, each with its own default fuel grade • Per-vehicle summary: average MPG, total spent, and cost per mile (Pure Gas Pro) • Economy-over-time and monthly-spend charts (Pure Gas Pro) • Import and export your records as CSV (Pure Gas Pro) PURE GAS PRO • A single one-time unlock — no subscription, ever • Adds Trips, Look Around previews, fuel-economy charts and summaries, CSV import/export, fill-up reminders, and appearance and accent themes • The core ethanol-free finder is always free PRIVATE BY DESIGN • No accounts. No sign-up. No email required. • No tracking, no analytics, no ads • Pure Gas never collects your location — it's used on your device to sort stations and calculate range • Your fuel records, vehicles, and trips are stored only on your device Pure Gas is a focused, privacy-first tool built for people who care what goes in the tank. Station data is provided by pure-gas.org and maintained by the community.

About

Crowd Alerts

This app helps you avoid crowded places by providing real-time information on how busy establishments are. Plan your trips to find the most convenient times to travel and discover alternative nearby locations.

Highlights
  • Real-time crowd density information
  • Plan travel to avoid busy times
  • Discover alternative nearby places
  • Proactive crowd avoidance
  • Off-the-beaten-path travel suggestions
Features
Read full description

Do you like crowds? Or do you prefer to travel off the beaten path? Be proactive and know when is the most convenient time to travel without having to bump into uncomfortable situations, such as encountering too many people in one place. How do you know how crowded it is at a particular location? That's where Crowd Alerts comes in. Crowd Alerts is an app through which you can find out how crowded a place is BEFORE you head out. With Crowd Alerts, you can know how busy the place you need to go to is and plan accordingly. Crowd Alerts provides you with real-time information on how busy an establishment is at any given moment. Crowd Alerts can also provide suggestions for similar places nearby.

Screenshots

Pure Gas4 screens
Crowd Alerts4 screens

Verdict

The call

The clearest difference is review sentiment: Pure Gas at 38% against Crowd Alerts's 0%. Pure Gas also leads on ratings volume (2.9K vs 28) and rating (4.6 vs 4.3). Crowd Alerts's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 18.1). On price, update cadence, ads and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Pure Gas sells 2 one-off in-app purchases. Crowd Alerts asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Pure Gas holds the better App Store score, 4.6 against 4.3. That said, the two scores are not equally well evidenced: Pure Gas has 2.9K ratings behind it against 28, so its average is the more settled of the two. Written reviews point the same way: 38% of Pure Gas's written reviews are positive against 0% of Crowd Alerts's.

UpkeepUpdate frequency

Pure Gas ships an update every 6 months, Crowd Alerts every 11 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

Scorecard6 real differences · 4 level
Pure Gas versus Crowd Alerts: the parameters behind the verdict, then further details
ParameterPure GasCrowd Alerts
PriceFreeFree
Rating4.6 (2.9K ratings) — better4.3 (28 ratings)
Positive reviews37.6% of reviews — better0.0% of reviews
Number of ratings2.9K — better28
Update frequencyEvery 6 months — betterEvery 11 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.112.0 — better
Further details — not scored
Size4 MB18 MB
Age rating4+4+
DeveloperJeffrey JacksonJonajo Consulting LLC

Customer experience

Pure Gas

All ratings2,896 ratings
Positive89.7%
Neutral5.0%
Negative5.3%
Written reviews141 reviews
Positive37.6%
Neutral17.7%
Negative44.7%

Crowd Alerts

All ratings23 ratings
Positive73.9%
Neutral8.7%
Negative17.4%
Written reviews3 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

Pure Gas

Reported bugs

2 issues
  • App crashes or won't open
  • Map view issues, such as incorrect station locations

Requested features

4 requests
  • Add fuel pricing information
  • Allow searching/browsing outside of current location
  • Display octane levels for each station
  • Enable user reviews/comments on stations

Crowd Alerts

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Pure Gas

One-time2
  • Developer Tip$0.99
  • Pure Gas Pro$2.99
None

Crowd Alerts

No in-app purchases

Questions

Is Pure Gas free?
Pure Gas is free to download, with in-app purchases available.
Is Crowd Alerts free?
Crowd Alerts is free to download, with no in-app purchases.
Which has better reviews, Pure Gas or Crowd Alerts?
Pure Gas is rated higher. Pure Gas averages 4.6 out of 5 from 2.9K ratings, while Crowd Alerts averages 4.3 from 28 ratings.
Do Pure Gas or Crowd Alerts have ads?
Neither Pure Gas nor Crowd Alerts shows ads.
Which is updated more often, Pure Gas or Crowd Alerts?
Pure Gas ships an update every 6 months, and Crowd Alerts every 11 months. Most recently, Pure Gas was updated on November 6, 2026 and Crowd Alerts on November 3, 2026.

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