CNCW vs MCE Sync
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CNCW
This application allows Contra Costa Water District customers to conveniently manage and pay their water bills directly from their iOS devices. It provides a secure platform for enrollment and payment processing.
- Bill payment
- Account enrollment
- Secure transactions
- Mobile access
Read full descriptionHide full description
This is for Contra Costa Water District's customers to make payments. This application is created by Paymentus Corporation for customers to enroll and pay bills from an iOS device.
MCE Sync
Automate your electric vehicle charging to leverage the cheapest and cleanest energy available on the grid. Earn cash rewards for charging during specific low-carbon events.
- Automated EV charging
- Cheapest energy utilization
- Cleanest energy utilization
- Cash sign-up bonus
- Monthly cash rewards
Read full descriptionHide full description
The MCE Sync app helps you automate your EV charging at home to use the least expensive and cleanest energy on the grid. Download the app and charge your EV to receive a $50 sign-up bonus. You can earn $10 a month in additional cash by charging during low-carbon events.
Screenshots
Verdict
CNCW and MCE Sync both sit at 4.8 stars, but that hides the real split: 69% of CNCW's written reviews are positive against 38% of MCE Sync's. CNCW also leads on device support (3 vs 1) and iOS requirement (15.0 vs 18.6). MCE Sync's advantage is update cadence (every 6 weeks vs every 8 months). On price, rating, ratings volume and ads 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.
CNCW holds the better App Store score, 4.8 against 4.7. Both are backed by a comparable volume of ratings — 225 and 216 respectively. Written reviews point the same way: 69% of CNCW's written reviews are positive against 38% of MCE Sync's.
CNCW ships an update every 8 months, MCE Sync every 6 weeks. The most recent releases landed on November 13, 2026 and November 14, 2026 respectively.
| Parameter | CNCW | MCE Sync |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (225 ratings) — better | 4.7 (216 ratings) |
| Positive reviews | 68.8% of reviews — better | 38.5% of reviews |
| Number of ratings | 225 — better | 216 |
| Update frequency | Every 8 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 25 MB | 91 MB |
| Age rating | 4+ | 4+ |
| Developer | Paymentus Corporation | MCE Clean Energy |
Customer experience
CNCW
MCE Sync
Bugs and requests
CNCW
Reported bugs
6 issues- Will not accept password
- App keeps crashing
- Autopay feature not allowing right payment
- Cannot erase cards
- Payment processing errors (zip code issue)
Show 1 moreShow fewer
- Persistent warning message
Requested features
3 requests- Additional information on past water usage
- Graphs for water usage
- Software updates for iOS compatibility
MCE Sync
Not enough reviews yet to summarise bugs or requests.
In-app purchases
CNCW
No in-app purchases
MCE Sync
No in-app purchases
