# 裕翎丰YLFsoft vs Solar Setup

The clearest difference is in-app purchases: 裕翎丰YLFsoft at none against Solar Setup's 1. Solar Setup's advantage is update cadence (every 2 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Solar Setup sells 1 one-off in-app purchase. 裕翎丰YLFsoft asks for nothing beyond the download.

裕翎丰YLFsoft ships an update every 3 months, Solar Setup every 2 days. The most recent releases landed on September 18, 2026 and August 26, 2026 respectively.

## The numbers

| Metric | 裕翎丰YLFsoft | Solar Setup |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 days** |
| Size | 35 MB | 46 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [蓝蕊科技](https://appshunter.io/developer/1680400577) | [Ammar Khatib](https://appshunter.io/developer/1613990135) |

## What reviewers say

### 裕翎丰YLFsoft

[App page](https://appshunter.io/ios/app/ylfsoft/id6760929885)

**Features:** macOS Compatibility

**In-app purchases:** none


### Solar Setup

[App page](https://appshunter.io/ios/app/solar-setup-off-grid-calc/id6771114823)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Solar Setup Pro | $6.99 | one-time |


## Frequently asked questions

### Is 裕翎丰YLFsoft free?

裕翎丰YLFsoft is free to download, with no in-app purchases.

### Is Solar Setup free?

Solar Setup is free to download, with in-app purchases available.

### Do 裕翎丰YLFsoft or Solar Setup have ads?

Neither 裕翎丰YLFsoft nor Solar Setup shows ads.

### Which is updated more often, 裕翎丰YLFsoft or Solar Setup?

裕翎丰YLFsoft ships an update every 3 months, and Solar Setup every 2 days. Most recently, 裕翎丰YLFsoft was updated on September 18, 2026 and Solar Setup on August 26, 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.*