# RDNIMOS vs Solar

RDNIMOS and Solar 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.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 10 days. The most recent releases landed on September 11, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | RDNIMOS | Solar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 days | Every 10 days |
| Size | 10 MB | 47 MB |
| Requires iOS | **12.4** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Suzhou Radiant Photovoltaic Technology Co., Ltd](https://appshunter.io/developer/1630691682) | [厦门蓝旭科技有限公司](https://appshunter.io/developer/1722214713) |

## What reviewers say

### RDNIMOS

[App page](https://appshunter.io/ios/app/rdnimos/id6443981089)

**Features:** macOS Compatibility

**In-app purchases:** none


### Solar

[App page](https://appshunter.io/ios/app/solar-lit-bluetooth/id6747466536)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is RDNIMOS free?

RDNIMOS is free to download, with no in-app purchases.

### Is Solar free?

Solar is free to download, with no in-app purchases.

### Do RDNIMOS or Solar have ads?

Neither RDNIMOS nor Solar shows ads.

### Which is updated more often, RDNIMOS or Solar?

RDNIMOS ships an update every 10 days, and Solar every 10 days. Most recently, RDNIMOS was updated on September 11, 2026 and Solar on September 22, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*