VOOL vs Gruff Automation
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
VOOL
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Want to cut your usual charging costs in half? Better hit that blue GET button. VOOL App tracks Nord Pool energy prices to get your EV fully charged and cut your charging costs. Don't interrupt your life to toggle the on/off switch, either. Automate your charging with VOOL. VOOL APP โข Works with all OCPP-compliant chargers, but best with the VOOL Charger โข Tracks and displays Nord Pool energy prices โข Automatically charges your EV below your selected kW price โข Turns charging on and off remotely โข Gives a full overview of your charging sessions Setting up your charger, your EV, and your favourite charging location is simple. Once you're up and running, the VOOL App remembers your preferred charging rates, shows you your charging sessions โ and savings, and will notify you only when absolutely necessary. VOOL is on a mission to make your EV Charging experience more reliable, cheap, and elegant. VOOL App and EV Charger are just the beginning.
Gruff Automation
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Control Your Electricity Costs: The Gruff Saver Socket is a Wi-Fi connected socket that monitors electricity prices and automatically turns on/off your devices to save you money during off-peak hours. Stop Overpaying for Electricity: Introducing the Gruff Saver Socket, the innovative way to take control of your electricity bills. This Wi-Fi connected socket seamlessly integrates with your home network and retrieves real-time market electricity prices. With this information, the Gruff Saver Socket can automatically switch on and off your plugged-in devices based on the current price per hour. This means your appliances will only operate during off-peak hours when electricity is cheapest, saving you money without any manual effort. Smart Savings, Simplified: The Gruff Saver Socket is easy to set up and use. Simply connect it to your Wi-Fi network and configure it through the user-friendly app. You can then choose which devices you want to connect to the socket and set personalized preferences for their operation based on electricity prices. The Gruff Saver Socket takes care of the rest, automatically optimizing your energy consumption and saving you money on your electricity bills. Benefits: Reduce your electricity costs by automatically using appliances during off-peak hours. Gain real-time insights into market electricity prices. Easy to set up and manage through a user-friendly app. Convenient and automated solution for saving energy. Gruff Saver Socket - Smarter Electricity Use, Lower Bills.
Screenshots
Verdict
The clearest difference is update cadence: VOOL at fortnightly against Gruff Automation's every 6 weeks. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
VOOL ships an update fortnightly, Gruff Automation every 6 weeks. The most recent releases landed on September 17, 2026 and September 9, 2026 respectively.
| Parameter | VOOL | Gruff Automation |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly โ better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad โ better |
| Requires iOS | 17.6 | 16.4 โ better |
| Further details โ not scored | ||
| Size | 125 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | MultiCharge OU | Altos Engineering OU |
In-app purchases
VOOL
No in-app purchases
Gruff Automation
No in-app purchases









