Synergi app review: How Mika earned €50 for a new phone with smart charging

Isa Kaipainen
Isa Kaipainen
October 2, 2025

Effortless savings and a €50 reward for a new phone

“Synergi is super easy to use, that’s why I chose it.”

Mika Valtonen discovered Synergi after trying two other apps that didn’t deliver the results he expected. Another key factor was that Synergi works even if you switch electricity providers.

“The app follows the electricity prices – not me.”

Mika lives in a detached house and owns both an EV and a heat pump. His main goal in finding an optimisation app was to make use of price dips in the electricity market and avoid higher rates.

Before, charging the car meant manually checking electricity prices – which felt like a chore.

Getting started with Synergi was incredibly easy, and right from the beginning Mika felt the app does exactly what it promises. After failed experiences with other services, he was almost ready to give up.

In addition to its simplicity, what Mika values most is that Synergi optimises not only his car charging but also his heat pump – all in one app.

Rewards put to good use: a €50 discount on a new phone

When Mika heard about Synergi Smart Rewards, it felt like a win-win: savings plus tangible benefits.

“The reward system is a fantastic addition to smart charging. I see it as part of responsible living – like recycling or making other sustainable choices – that my car battery can help balance the power grid. Why would I mind that? While it’s just sitting there, my car can contribute to the common good and maybe even help bring down future price peaks.”

Mika has already earned enough points for a €50 gift card, and he knows exactly what he’ll use it for: a new phone – with a nice discount.

Coming soon: Charge and earn rewards

We’re about to launch Finland’s first free smart charging service that actually pays you back for helping balance the electricity grid. Leave your details below and be among the first to know when it goes live!

Join our waitlist (only in FInnish)

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