# Astro Lithium vs MAR

Astro Lithium and MAR 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.

Astro Lithium ships an update every 5 months, MAR every 3 months. The most recent releases landed on September 20, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Astro Lithium | MAR |
| --- | --- | --- |
| 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 5 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 17 MB | 84 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Astro Lithium, LLC](https://appshunter.io/developer/1688565455) | [Locmarine Telematics, LLC](https://appshunter.io/developer/1511630052) |

## What reviewers say

### 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


### MAR

[App page](https://appshunter.io/ios/app/mar-ai/id6478054835)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Astro Lithium free?

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

### Is MAR free?

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

### Do Astro Lithium or MAR have ads?

Neither Astro Lithium nor MAR shows ads.

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

Astro Lithium ships an update every 5 months, and MAR every 3 months. Most recently, Astro Lithium was updated on September 20, 2026 and MAR 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.*