Sonnen Buddy vs sonnen
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sonnen Buddy
Monitor your home energy system in real-time, including PV panels, battery, and inverter utilization. Easily adjust system configurations like charge events and operating modes directly from your mobile device.
- Real-time energy flow view
- PV panel, battery, and inverter utilization
- System configuration adjustments
- Charge event scheduling
- Operating mode changes
- Weather forecast charge management
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Boost your sonnen experience with a more detailed, real-time view of your energy flow — and the ability to change your system configuration directly from the app, using your installation's built-in API. That includes charge events, and much more. The live view complements the "my sonnen" app you already know by adding utilization of your PV panels, battery, and inverter. You provide your panel capacity, and the app reads your system's limits — including battery capacity, battery max input/output, and inverter max output. By calculating and displaying utilization right in the app, you can easily spot bottlenecks in your energy flow. Set up schedules (charge events) to charge your battery from the grid — for example at night — or prevent battery discharge, all through a simple, intuitive interface. Change the operating mode, enable weather forecast charge management, and more. Sonnen Buddy Premium unlocks capabilities for users who want even more control: • Favorite schedules — apply your favorite schedules with a single tap. • Customizable real-time data — build your own view from the full range of data points your sonnenBatterie exposes. • Home screen widget — keep an eye on your schedules right from the home screen. • Lock screen widget — see your battery charge at a glance. • Manual mode — take direct, granular control for advanced use. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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 review sentiment: Sonnen Buddy at 100% against sonnen's 38%. Sonnen Buddy also leads on rating (5.0 vs 3.5). sonnen's advantage is in-app purchases (none vs 2) and ratings volume (20 vs 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. Sonnen Buddy sells 2 in-app purchases, starting at $2.99 per month. sonnen asks for nothing beyond the download.
Sonnen Buddy holds the better App Store score, 5.0 against 3.5. That said, the two scores are not equally well evidenced: sonnen has 20 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Sonnen Buddy's written reviews are positive against 38% of sonnen's.
Sonnen Buddy ships an update every 10 days, sonnen fortnightly. Both last shipped on November 3, 2026.
| Parameter | Sonnen Buddy | sonnen |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 3.5 (20 ratings) |
| Positive reviews | 100.0% of reviews — better | 38.3% of reviews |
| Number of ratings | 1 | 20 — better |
| Update frequency | Every 10 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.4 | 15.1 — better |
| Further details — not scored | ||
| Size | 58 MB | 66 MB |
| Age rating | 4+ | 4+ |
| Developer | Daniel Andersen | sonnen GmbH |
Customer experience
Sonnen Buddy
sonnen
In-app purchases
Sonnen Buddy
- Sonnen Buddy Premium$2.991 Month
- Sonnen Buddy Premium$22.991 Year
sonnen
No in-app purchases









