iSolar vs RuiDeng
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iSolar
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Are you realizing a solar plant but you don't know how to direct your panel? No more problems with iSolar! iSolar allows you to calculate the best orientation for your photovoltaic panels according to the season.
RuiDeng
Connect to and manage various devices wirelessly. Display device information and control them via Wi-Fi and Bluetooth. Offers a straightforward way to interact with your hardware.
- Wireless device communication
- Device information display
- Wi-Fi connectivity
- Bluetooth connectivity
- Device control
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Communicate with devices, control and display device information through Wi Fi Bluetooth, etc
Screenshots
Verdict
The clearest difference is price: RuiDeng at Free against iSolar's $0.99. RuiDeng also leads on ads (none vs shown) and device support (3 vs 1). iSolar's advantage is update cadence (fortnightly vs every 3 months). On in-app purchases 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
RuiDeng is free to download; iSolar costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
iSolar ships an update fortnightly, RuiDeng every 3 months. The most recent releases landed on October 9, 2026 and October 8, 2026 respectively.
| Parameter | iSolar | RuiDeng |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | — | 3.0 (2 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Fortnightly — better | Every 3 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Alain Lima | 亮亮 刘 |
In-app purchases
iSolar
No in-app purchases
RuiDeng
No in-app purchases
