CARTology vs CMLibrary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CARTology
Access garbage and recycling schedules for Cabarrus County, Concord, Kannapolis, and Harrisburg. Receive timely collection notifications directly within the app to stay informed about your waste management.
- Garbage and recycling schedules
- Collection reminders
- Notifications
- Cabarrus County coverage
- Concord, Kannapolis, Harrisburg support
Read full descriptionHide full description
Garbage and recycling schedules and reminders for Cabarrus County, Concord, Kannapolis and Harrisburg. View your garbage and recycling schedule and receive collection notifications all from within this app.
CMLibrary
Access a vast collection of books, e-books, audiobooks, movies, and music. Manage your library account, place holds, renew items, and discover new titles. Find library locations, events, and news.
- Access extensive catalog
- Manage library account
- Place holds and renew items
- Scan book barcodes for holds
- Download/stream e-books and audiobooks
- Discover new titles and recommendations
- View library events and news
Read full descriptionHide full description
Gain access to Charlotte Mecklenburg Library's extensive catalog and find your next favorite book, e-book, audiobook, e-audiobook, graphic novel, magazine, movie or song. You can also check your account, place holds or renew items, get library information such as hours and directions, find upcoming events, or contact your local library. Additional features: Use your phone screen as your Library card when checking out items in the Library. Scan the barcode of any book to find and place it on hold. Receive notifications about new materials or upcoming events. Search our catalog for physical and digital books, magazines, movies, music and more. Manage your account to easily place holds and see your checkouts. Download or stream e-books and audiobooks from OverDrive. Get directions to the nearest Library branch. Manage your booklists and keep track of what you want/plan to read using your virtual shelves. Discover new titles by viewing recommendations curated by Library staff or browse similar titles. See the Library calendar and register for events, classes and workshops. Keep up with the latest News from the Library. Connect with us on Facebook, Instagram, Twitter, LinkedIn and YouTube.
Screenshots
Verdict
The clearest difference is review sentiment: CARTology at 92% against CMLibrary's 33%. CARTology also leads on rating (4.8 vs 3.4) and ratings volume (1.3K vs 28). 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.
CARTology holds the better App Store score, 4.8 against 3.4. That said, the two scores are not equally well evidenced: CARTology has 1.3K ratings behind it against 28, so its average is the more settled of the two. Written reviews point the same way: 92% of CARTology's written reviews are positive against 33% of CMLibrary's.
Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | CARTology | CMLibrary |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (1.3K ratings) — better | 3.4 (28 ratings) |
| Positive reviews | 91.7% of reviews — better | 33.3% of reviews |
| Number of ratings | 1.3K — better | 28 |
| Update frequency | Every 4 months | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 81 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Cabarrus County | Public Library of Charlotte and Mecklenburg County |
Customer experience
CARTology
CMLibrary
Bugs and requests
CARTology
Reported bugs
2 issues- Login screen freezes
- Incompatible with older devices
Requested features
2 requests- More specific recycling guidelines
- Improved notification system for iOS
CMLibrary
Not enough reviews yet to summarise bugs or requests.
In-app purchases
CARTology
No in-app purchases
CMLibrary
No in-app purchases
