S vs ParkSonar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
S
Monitor your distributed PV power plant's performance with real-time data. Track energy generation, view module-level details, and receive equipment alarm notifications to ensure optimal operation and yield.
- Module-level monitoring
- Real-time data display
- Plant-level data
- Energy generation tracking
- Alarm information
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S-miles Enduser is a mobile application developed by Hoymiles especially for owners of distributed PV power plants, which can absorb the operating data of PV power plants from S-miles Cloud. There are more functions, such as module-level monitoring, real-time data display for both plant-level & module-level as well as daily, monthly, annual, and total energy display. Furthermore, you can easily see the alarm information with the equipment, which could assist the owner in monitoring the operation of the PV power plant, ensuring normal operation of the power plant and obtaining of the expected yield.
ParkSonar
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ParkSonar is a free, ad-free app with no in-app purchases that provides indicative information about potential availability of public parking spaces using community signals (Smart Parking). If you opt in, ParkSonar sends a time-limited location ping when you start driving (detected via your car’s Bluetooth) to help improve parking availability estimates for others. The community view shows only the time and location where a spot was vacated. ParkSonar uses your email to sign you in and manage your account. Your email is not shared with the community and is not included in Smart Parking signals. Smart Parking sharing is optional, can be turned off anytime, and may use precise location even when the app is closed or not in use to enable the feature. We do not use location data for advertising.
Screenshots
Verdict
S and ParkSonar are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
S ships an update monthly, ParkSonar every 5 weeks. The most recent releases landed on October 27, 2026 and October 22, 2026 respectively.
| Parameter | S | ParkSonar |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (91 ratings) — better | — |
| Positive reviews | 37.3% of reviews | — |
| Number of ratings | 91 — better | — |
| Update frequency | Monthly — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 207 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | Hoymiles Power Electronics Inc. | Michael Mathieu |
In-app purchases
S
No in-app purchases
ParkSonar
No in-app purchases









