WATT EV CHARGING vs ERP 2.0
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WATT EV CHARGING
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Step into the future of electric vehicle charging with Novowatt – your all-in-one solution for easy, efficient, and eco-friendly charging. With Novowatt, you're not just charging your EV, you're revolutionizing your driving experience. Reserve your charging spot in advance and avoid the hassle of waiting with our convenient queuing system. With just a few taps, secure your spot at your preferred charging station and breeze in when it's your turn. Unlock exclusive perks and benefits with our subscription service, tailored to fit your charging needs. Whether you're a daily commuter or a weekend explorer, we've got a plan for you. Explore our marketplace rewards and discover a world of incentives as you charge. Earn points with every session and exchange them for exciting rewards, from discounts on charging to deals on eco-friendly products. But that's not all – with Novowatt, you'll also enjoy features like real-time charging status updates, seamless payment options, and personalized recommendations based on your driving habits. Join the movement and drive towards a greener future with Novowatt – download the app now!
ERP 2.0
Access and display information from your On-Board Unit (OBU), including charging details and traffic alerts. Connects via Bluetooth for background notifications and supports CarPlay for in-car system integration.
- Access OBU charging details
- Receive traffic alerts
- View payment options
- Bluetooth connectivity
- Background notifications
- CarPlay compatibility
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The ERP 2.0 application allows you to access and display information provided by your On-Board Unit (OBU), such as ERP charging details, traffic alerts and Payment options. The application utilises Bluetooth technology to establish a seamless connection with the On-Board Unit (OBU), enabling motorists to receive notifications even when the application is running in the background. It is also compatible with CarPlay, allowing you to receive OBU Alerts on your vehicle's infotainment system, thereby allowing you to maintain a neat dashboard.
Screenshots
Verdict
The clearest difference is ads: ERP 2.0 at none against WATT EV CHARGING's shown. WATT EV CHARGING's advantage is update cadence (every 5 days vs every 3 months). On price, in-app purchases, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
WATT EV CHARGING ships an update every 5 days, ERP 2.0 every 3 months. Both last shipped on October 27, 2026.
| Parameter | WATT EV CHARGING | ERP 2.0 |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.0 (2 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 5 days — better | Every 3 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 16.6 |
| Further details — not scored | ||
| Size | 152 MB | 27 MB |
| Age rating | 4+ | 17+ |
| Developer | WATT | Land Transport Authority (Singapore) |
In-app purchases
WATT EV CHARGING
No in-app purchases
ERP 2.0
No in-app purchases





