Comparison

US Mobile vs CarTab

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

Head to head
About

US Mobile

Manage your mobile service with ease. Activate new lines, switch between major US networks, and track usage in real-time. Offers plans for individuals and families, with international data options and 24/7 support.

Highlights
  • Activate lines with eSIM or Starter Kit
  • Switch between major US networks
  • Manage individual and family plans
  • Add international data for travel
  • Monitor usage and balance
  • 24/7 human support
Features
Read full description

US Mobile is America’s #1 Super Carrier, offering you the flexibility to use and switch between all three major US networks anytime. Welcome to a new era in wireless. Our app is your all-in-one dashboard for activation, management, and more. Whether you need a plan for yourself or your entire family, we’ve got you covered with plans that cover every need. Plus, enjoy a FREE 30-day trial to experience it all across all of our networks! Activate Your Line: Instantly activate with eSIM on all our plans Order and activate our Starter Kit on any network Keep your current number or get a new one Add international data for travel Manage Your Line: Transfer your line to another device or network Monitor your usage and balance in real-time Top up talk, text, and data as needed Set up autopay and easily switch plans Manage Your Account: Access to 24/7 human support, 365 days a year Add other users to your account to manage lines Secure your account including two-factor authentication Refer friends and family to earn rewards Follow Us: https://twitter.com/usmobile https://www.instagram.com/usmobile https://www.usmobile.com/blog

About

CarTab

Easily track your vehicle's maintenance history, log repairs, and manage ongoing projects. Set custom reminders for services based on mileage or time, and export detailed service records for sharing.

Highlights
  • Vehicle maintenance logging
  • Project tracking
  • Customizable service reminders
  • PDF and CSV export
  • Automatic backup with Apple Sign-In
  • Cloud photo backup (paid)
Features
Read full description

Every car has a story. Most of it is in a shoebox of receipts. cartab keeps the whole record in one place — what you did, what it cost, what parts went in, and what you're planning next. YOUR GARAGE Swipe through your vehicles full-screen, one photo per car. Each one keeps its own color, its own odometer and its own history. THE MAINTENANCE LOG Log an oil change in about fifteen seconds. Title, cost, mileage, done. Add notes, part links, tools and photos when the job deserves it. PROJECTS, NOT JUST REPAIRS A build isn't one line in a log. Give it an estimate, a parts list and a tools list, then track it as it happens — every expense, progress note and milestone on one timeline. Watch what it really cost land against what you thought it would. REMINDERS THAT KNOW YOUR CAR Oil, tires and brakes, by mileage or by time, on intervals you set per vehicle. cartab estimates how far you've driven since the last service, so the reminder arrives before the job is overdue instead of after. A SERVICE RECORD WORTH SHARING Export a color-coded PDF for any vehicle: the full history, parts with links, project timelines, costs and a legend. Hand it to a buyer, a mechanic or an insurer. CSV export too, if you'd rather have the numbers in a spreadsheet. BUILT TO BE KEPT Sign in with Apple and your written record backs up automatically and follows you to a new phone. That's free for everyone — losing six years of records to a dead phone shouldn't be a paid feature. FREE • One vehicle • Unlimited service entries and projects • Unlimited photos, kept on your device • Every reminder • PDF and CSV export • Written records backed up and synced UNLOCK UNLIMITED — $2.99, ONCE • Every vehicle you own • Photo backup to the cloud, at full quality • Family Sharing for up to six people One payment. No subscription. No ads. No account needed to start.

Screenshots

US Mobile4 screens
CarTab4 screens

Verdict

The call

The clearest difference is rating: CarTab at 5.0 against US Mobile's 4.1. CarTab also leads on update cadence (every 3 days vs weekly). US Mobile's advantage is in-app purchases (none vs 1) and ratings volume (2K vs 1). On price, ads, device support and iOS requirement 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. CarTab sells 1 one-off in-app purchase. US Mobile asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

CarTab holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: US Mobile has 2K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

US Mobile ships an update weekly, CarTab every 3 days. The most recent releases landed on October 26, 2026 and October 8, 2026 respectively.

Scorecard5 real differences · 5 level
US Mobile versus CarTab: the parameters behind the verdict, then further details
ParameterUS MobileCarTab
PriceFreeFree
Rating4.1 (2K ratings)5.0 (1 ratings) — better
Positive reviews68.0% of reviews—
Number of ratings2K — better1
Update frequencyWeeklyEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad — betteriPhone
Requires iOS16.4 — better17.0
Further details — not scored
Size207 MB13 MB
Age rating17+4+
DeveloperUS Mobile Inc.Emanuel Avina

Customer experience

US Mobile

All ratings1,944 ratings
Positive76.0%
Neutral4.0%
Negative20.1%
Written reviews590 reviews
Positive68.0%
Neutral5.8%
Negative26.3%

CarTab

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

US Mobile

Reported bugs

5 issues
  • App freezes on login screen
  • Inability to scroll on certain screens
  • Incorrect data usage information
  • Frequent app crashes and bugs
  • eSIM compatibility issues

Requested features

5 requests
  • Improved data usage tracking
  • Easier account management options
  • Expanded international roaming support
  • Parental controls and content filtering
  • Seamless integration with Apple Watch

CarTab

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

US Mobile

No in-app purchases

1 purchases

CarTab

One-time1
  • Unlimited Vehicles$2.99

Questions

Is US Mobile free?
US Mobile is free to download, with no in-app purchases.
Is CarTab free?
CarTab is free to download, with in-app purchases available.
Which has better reviews, US Mobile or CarTab?
CarTab is rated higher. US Mobile averages 4.1 out of 5 from 2K ratings, while CarTab averages 5.0 from 1 ratings.
Do US Mobile or CarTab have ads?
Neither US Mobile nor CarTab shows ads.
Which is updated more often, US Mobile or CarTab?
US Mobile ships an update weekly, and CarTab every 3 days. Most recently, US Mobile was updated on October 26, 2026 and CarTab on October 8, 2026.

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