YellowGrid vs Voltayze
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
YellowGrid
Monitor your solar energy production and consumption in real time. Track your earnings from selling surplus energy to the grid and manage your battery reserves. Connect your solar system to a network for trading and receive monthly proceeds.
- Real-time energy production and consumption monitoring
- Surplus energy tracking to the grid
- Earnings and monthly payment tracking
- Battery capacity reservation
- Connect solar systems for energy trading
- Assistance with solar installation
Read full descriptionHide full description
Your solar energy. Your earnings. In one app. YellowGrid helps you see what your solar system produces, understand how you use energy and track what you earn from selling your surplus. With the YellowGrid app, you can: - Monitor your energy production and consumption in real time. - See how much surplus energy you send to the grid. - Track your earnings and monthly payments. - Choose how much battery capacity to reserve for your own use. We put your surplus energy to work. YellowGrid connects solar systems across Romania and trades their combined surplus on the energy market. We handle the trading, and you receive your share of the proceeds each month. Already have solar panels? Connect your compatible system to our network with YellowBox. Planning your first installation? We help with the equipment, installation and connection. Get more from your solar energy with YellowGrid.
Voltayze
Read full descriptionHide full description
Voltayze is the smartest way to own a car. Whether you drive petrol, hybrid, or electric — Voltayze gives you complete visibility over your vehicle's costs, maintenance, and ownership details. Free for every car, with native Tesla API integration for electric drivers who want more. Log fuel, maintenance, insurance, and taxes in one place. Know exactly what your car costs you — monthly, yearly, and over your full ownership. Photograph your fuel receipt and Voltayze logs everything automatically. No typing, no spreadsheets. Just a photo. Never miss an insurance renewal, road tax, inspection, or service again. Set alerts and Voltayze reminds you before it's too late. Tesla owners get automatic data sync — charging history, energy consumption, range tracking, and cost analysis. The most complete Tesla companion app available. Petrol, hybrid, or electric. Add multiple vehicles. Track them all in one app, free. More smart features coming soon. By downloading this app, you agree to Apple's Standard End User License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: YellowGrid at none against Voltayze's 1. 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
Both are free to download. Voltayze sells 1 in-app purchase, starting at $2.99 per month. YellowGrid asks for nothing beyond the download.
YellowGrid ships an update fortnightly, Voltayze every 11 days. The most recent releases landed on September 26, 2026 and October 4, 2026 respectively.
| Parameter | YellowGrid | Voltayze |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Fortnightly | Every 11 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.4 | 15.1 — better |
| Further details — not scored | ||
| Size | 94 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | YellowGrid | Voltayze |
In-app purchases
YellowGrid
No in-app purchases
Voltayze
- Voltayze Premium1 Month trial$2.991 Month









