Comparison

Chat E vs RevLine

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

Head to head
About

Chat E

Explore Chatfield State Park with an e-bike share system. Easily unlock and ride eco-friendly bikes for a seamless adventure in nature. Enjoy an unforgettable biking experience.

Highlights
  • E-bike share system
  • Unlock and ride e-bikes
  • Seamless adventure
  • Eco-friendly travel
  • Explore nature
Features
Read full description

The official app for the e-bike share system in Chatfield State Park. Discover Chatfield State Park on cutting-edge e-bikes. Effortlessly unlock and ride a seamless and eco-friendly adventure. Download now for an unforgettable biking experience in nature!

About

RevLine

Transform your phone into a customizable car dashboard with various display styles and real engine sounds. Enhance your driving experience with detailed drive logs and optional OBD2 integration for real-time vehicle data.

Highlights
  • 45 customizable dashboard styles
  • Real engine sound recordings
  • Drive logging and route mapping
  • OBD2 adapter integration
  • Customizable gauge layout
  • No account or server required
Features
Read full description

Mount your phone and your car gets the instrument cluster it never had. RevLine turns an iPhone into a proper digital dashboard, forty-five of them, in fact, with engine notes cut from recordings of real cars, and a record of every drive you take. WORKS WITH JUST YOUR PHONE No adapter. No wiring. Nothing to install in the car. Speed, heading, g-force, distance, 0–60 and your cornering and braking forces all come from sensors your iPhone already has. Mount it, start a drive, and it works. FORTY-FIVE DASHBOARDS Eighties digital bar graphs. Modern hypercar screens. Wedge-era binnacles with orange needles. Clean Scandinavian minimalism, ink-on-paper, neon, and a set that reacts to how you drive — rev hard enough and things happen. Each one is drawn from scratch and laid out for a landscape phone, so it fills the screen instead of sitting in a corner. Swipe to change. Tap to pick another. ENGINE NOTES FROM REAL ENGINES The sounds are not synthesised. Each is cut from recordings of the car or bike it's named after — a naturally aspirated V10, a flat six, a twin-turbo V8, a 999cc inline four that revs to 14,000 — then rebuilt so it follows your revs and answers the throttle. Lift off after a hard pull and it pops and crackles. Play it on your phone or through the car stereo. PLUG IN AN ADAPTER FOR THE REAL NUMBERS Any Bluetooth or Wi-Fi OBD2 adapter turns the estimates into readings straight off your car's own bus: engine rpm, coolant, oil and intake temperature, boost, throttle position, engine load, battery voltage, fuel level and more. The gauges swap over automatically. It is an upgrade, not a requirement. Everything above works without one. EVERY DRIVE, REMEMBERED Drives longer than a minute are saved with their route, top speed, best acceleration and hardest corner. Look back at any of them on a map. Build a streak, climb driver levels, and see how your week looked. BUILD YOUR OWN Not quite the layout you wanted? Drag the gauges where you want them, save it, and drive it. YOUR DATA STAYS ON YOUR PHONE RevLine has no accounts, no servers and no analytics. It makes no network requests at all. Your drives and routes are stored on your iPhone and nowhere else, and deleting the app removes them. DRIVE SAFELY RevLine is for entertainment and general interest. Its readings are estimates, not certified instruments. Set it up before you move, mount your phone securely, keep your eyes on the road, and obey every speed limit and traffic law. ———— PRICING RevLine is free to download. Browse every dashboard and hear every engine for free. A one time purchase unlocks all the dashboards and sounds that aren't available in the free version. Terms of Use: https://www.bestdaylabs.com/revline/terms Privacy Policy: https://www.bestdaylabs.com/revline/privacy EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Chat E3 screens
RevLine4 screens

Verdict

The call

The clearest difference is rating: RevLine at 5.0 against Chat E's 4.2. Chat E's advantage is in-app purchases (none vs 4) and ratings volume (38 vs 5). 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. RevLine sells 4 in-app purchases, starting at $3.99 per 7 days. Chat E asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

RevLine holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Chat E has 38 ratings behind it against 5, so its average is the more settled of the two.

UpkeepUpdate frequency

Chat E ships an update weekly, RevLine every 9 days. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

Scorecard5 real differences · 5 level
Chat E versus RevLine: the parameters behind the verdict, then further details
ParameterChat ERevLine
PriceFreeFree
Rating4.2 (38 ratings)5.0 (5 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings38 — better5
Update frequencyWeekly — betterEvery 9 days
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPod — betteriPhone
Requires iOS15.5 — better17.0
Further details — not scored
Size69 MB19 MB
Age rating4+4+
DeveloperDropbike Inc.Best Day Labs, LLC

Customer experience

Chat E

All ratings38 ratings
Positive78.9%
Neutral2.6%
Negative18.4%

RevLine

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Chat E

No in-app purchases

4 purchases

RevLine

Subscriptions3
  • RevLine Pro Weekly$3.997 Days
  • RevLine Pro Yearly Offer$19.991 Year
  • RevLine Pro Yearly$29.991 Year
One-time1
  • RevLine Full Garage$12.99

Questions

Is Chat E free?
Chat E is free to download, with no in-app purchases.
Is RevLine free?
RevLine is free to download, with in-app purchases available.
Which has better reviews, Chat E or RevLine?
RevLine is rated higher. Chat E averages 4.2 out of 5 from 38 ratings, while RevLine averages 5.0 from 5 ratings.
Do Chat E or RevLine have ads?
Neither Chat E nor RevLine shows ads.
Which is updated more often, Chat E or RevLine?
Chat E ships an update weekly, and RevLine every 9 days. Most recently, Chat E was updated on November 4, 2026 and RevLine on October 31, 2026.

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