ACFA APP vs sonnen
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ACFA APP
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Die Infoplattform der American Car Friends Augsburg. Für Mitglieder - und die, die es werden wollen.
sonnen
Manage your clean energy supply from anywhere. Monitor your solar PV system, battery, and EV charger in real-time. Gain insights into energy consumption and generation to optimize your usage and prepare for outages.
- Real-time energy data and insights
- Monitor solar PV system performance
- Track battery and EV charger status
- View live energy flow and consumption
- Access energy contract details
- Set battery backup buffer
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With the sonnen App, you are empowered to manage your own clean energy anytime from anywhere. Use real-time energy data and insights to guide you on how to stay powered and protected with your solar photovoltaic (PV) system, your sonnenHome battery and energy products. Be part of the sonnenCommunity with the sonnen App and build a clean energy future. The sonnen App allows you to: - Get an overview of the performance of your sonnenHome energy system including your battery, PV system and EV charger (where applicable) - Access details on your sonnen energy contracts - See detailed insights on your household’s live energy flow - Get real-time and historical system data on your household’s energy consumption and generation - Choose a basic or professional mode on how you would like your energy data to be displayed - Set your battery backup buffer so your household is prepared for an energy outage
Screenshots
Verdict
The clearest difference is update cadence: sonnen at fortnightly against ACFA APP's every 38 months. ACFA APP's advantage is iOS requirement (11.0 vs 15.1). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
ACFA APP ships an update every 38 months, sonnen fortnightly. The most recent releases landed on October 3, 2026 and October 14, 2026 respectively.
| Parameter | ACFA APP | sonnen |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.5 (20 ratings) — better |
| Positive reviews | — | 37.5% of reviews |
| Number of ratings | — | 20 — better |
| Update frequency | Every 38 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 11.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 34 MB | 66 MB |
| Age rating | 4+ | 4+ |
| Developer | Konzept-iX Software GmbH | sonnen GmbH |
In-app purchases
ACFA APP
No in-app purchases
sonnen
No in-app purchases
