# Sumray vs LIB Solar

The clearest difference is update cadence: LIB Solar at every 3 weeks against Sumray's every 3 months. LIB Solar also leads on iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

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

Sumray ships an update every 3 months, LIB Solar every 3 weeks. The most recent releases landed on June 1, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Sumray | LIB Solar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Size | 39 MB | 89 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sumray Digital Energy Technology Company](https://appshunter.io/developer/1775348744) | [EnergyLIB (Suzhou) New Energy Technology Co., Ltd](https://appshunter.io/developer/1801914154) |

## What reviewers say

### Sumray

[App page](https://appshunter.io/ios/app/sumray/id6737216413)

**In-app purchases:** none


### LIB Solar

[App page](https://appshunter.io/ios/app/lib-solar/id6740565634)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sumray free?

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

### Is LIB Solar free?

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

### Do Sumray or LIB Solar have ads?

Neither Sumray nor LIB Solar shows ads.

### Which is updated more often, Sumray or LIB Solar?

Sumray ships an update every 3 months, and LIB Solar every 3 weeks. Most recently, Sumray was updated on June 1, 2026 and LIB Solar on September 9, 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.*