sonnen vs Yaravaz
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
Yaravaz
Capture and preserve meaningful in-person moments as sealed keepsakes. Record autographs, inscriptions, photos, and voice notes from friends, mentors, or public figures. Organize your collection into books and events, with options to reveal memories at a future date.
- Capture autographs, inscriptions, photos, and voice notes
- Create sealed and verifiable keepsakes
- Time capsule feature for future reveals
- Organize keepsakes into books and events
- Private by design, no ads or tracking
- Offline functionality
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Yaravaz turns your iPhone into a place for the marks, words, photos, and voices people leave with you. Collect handwritten autographs, inscriptions, doodles, photos, and voice notes from the people you meet, each one sealed as it happens. Meet someone you want to remember: a friend, mentor, musician, author, teammate, or someone unexpected. Hand them your iPhone, or let them sign on their own. They can leave a signature, inscription, doodle, photo, or short voice note. Yaravaz preserves the moment as a sealed keepsake—perfect for yearbook signings, meet-and-greets, conventions, author events, and everyday moments worth keeping. Two Ways to Sign — Both in Person • Their iPhone — hold the two iPhones together, and they sign on their own • My iPhone — hand them your iPhone, and they sign on it Together, Not Remote Yaravaz checks that the two iPhones are nearby before signing begins. The same six digits appear on both screens so you can confirm the connection. Being there is the point. There is no remote signing path. In a crowded room, use a scannable code to connect instead. Sealed and Verifiable We seal every keepsake as it happens. Later, you can verify that it remains exactly as it was when created. Follow the Request from One Screen Send a request and follow its progress from one screen: Connect, Sign, Added. Open requests stay under Waiting for Autograph, and finished keepsakes automatically arrive in your collection. Time Capsule Keep selected parts of a keepsake concealed until a future date. Words, photos, and other memories stay concealed until it’s time to reveal them. Organize Your Collection Arrange your keepsakes into books and events, add tags and notes, and quickly find a moment by person, event, or tag. Private by Design No ads. No tracking. Your collection stays on your devices and, when enabled, in your iCloud account. Yaravaz works offline where possible; iCloud features require an internet connection. Free Yaravaz is free to use. Capturing, preserving, revealing, and verifying your keepsakes cost nothing. Terms of Use & Privacy https://yaravaz.app/terms https://yaravaz.app/privacy
Screenshots
Verdict
The clearest difference is rating: Yaravaz at 4.8 against sonnen's 3.5. Yaravaz also leads on update cadence (every 5 days vs fortnightly). sonnen's advantage is ratings volume (20 vs 5) and iOS requirement (15.1 vs 26.1). On price, ads, in-app purchases and monetization model 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.
Yaravaz holds the better App Store score, 4.8 against 3.5. Both are backed by a comparable volume of ratings — 20 and 5 respectively.
sonnen ships an update fortnightly, Yaravaz every 5 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | sonnen | Yaravaz |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (20 ratings) | 4.8 (5 ratings) — better |
| Positive reviews | 38.3% of reviews | — |
| Number of ratings | 20 — better | 5 |
| Update frequency | Fortnightly | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.1 — better | 26.1 |
| Further details — not scored | ||
| Size | 66 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | sonnen GmbH | MUMTAZ SIDDIQUI |
Customer experience
sonnen
Yaravaz
In-app purchases
sonnen
No in-app purchases
Yaravaz
No in-app purchases









