# Solarpeak vs Astro Lithium

The clearest difference is update cadence: Astro Lithium at every 5 months against Solarpeak's every 41 months. Solarpeak's advantage is iOS requirement (12.0 vs 15.0). 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.

Solarpeak ships an update every 41 months, Astro Lithium every 5 months. The most recent releases landed on September 11, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Solarpeak | Astro Lithium |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/astro-lithium/id6449296484/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 41 months | **Every 5 months** |
| Monetization | — | Free |
| Size | 43 MB | 17 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [E&Jtechnology](https://appshunter.io/developer/1274910981) | [Astro Lithium, LLC](https://appshunter.io/developer/1688565455) |

## What reviewers say

### Solarpeak

[App page](https://appshunter.io/ios/app/solarpeak/id1639970383)

**Features:** macOS Compatibility

**In-app purchases:** none


### Astro Lithium

[App page](https://appshunter.io/ios/app/astro-lithium/id6449296484)

Monitor your Astro Lithium battery status in real time via Bluetooth. View state of charge, voltage, current, temperature, and estimated runtime. Receive smart alerts and manage multiple batteries.

**Highlights:** Real-time battery monitoring, Estimated runtime calculation, Smart status alerts, Multi-battery support, Troubleshooting guides, Dealer locator

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

**In-app purchases:** none


## Frequently asked questions

### Is Solarpeak free?

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

### Is Astro Lithium free?

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

### Do Solarpeak or Astro Lithium have ads?

Neither Solarpeak nor Astro Lithium shows ads.

### Which is updated more often, Solarpeak or Astro Lithium?

Solarpeak ships an update every 41 months, and Astro Lithium every 5 months. Most recently, Solarpeak was updated on September 11, 2026 and Astro Lithium on September 20, 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.*