# SUNWIND vs Lifeline Batteries

The clearest difference is update cadence: Lifeline Batteries at every 5 weeks against SUNWIND's every 7 months. SUNWIND's advantage is iOS requirement (8.0 vs 11.0). 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.

SUNWIND ships an update every 7 months, Lifeline Batteries every 5 weeks. The most recent releases landed on October 13, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | SUNWIND | Lifeline Batteries |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lifeline-batteries/id6443550854/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 5 weeks** |
| Monetization | — | Free |
| Size | 3 MB | 10 MB |
| Requires iOS | **8.0** | 11.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GYLLING TEKNIKK AS](https://appshunter.io/developer/1239677064) | [JDW, Inc.](https://appshunter.io/developer/1647101634) |

## What reviewers say

### SUNWIND

[App page](https://appshunter.io/ios/app/sunwind/id1240826677)

**Features:** macOS Compatibility

**In-app purchases:** none


### Lifeline Batteries

[App page](https://appshunter.io/ios/app/lifeline-batteries/id6443550854)

This app monitors your lithium batteries via Bluetooth, displaying real-time voltage, charge status, temperature, and cell balance. It provides alerts for critical conditions and logs warnings to help extend battery life.

**Highlights:** Real-time voltage, current, and power display, Single cell voltage and alarm status, Cell balance and voltage difference comparison, Temperature warning and alarms, Warning log, Compatible with all Lifeline Lithium battery models

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SUNWIND free?

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

### Is Lifeline Batteries free?

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

### Do SUNWIND or Lifeline Batteries have ads?

Neither SUNWIND nor Lifeline Batteries shows ads.

### Which is updated more often, SUNWIND or Lifeline Batteries?

SUNWIND ships an update every 7 months, and Lifeline Batteries every 5 weeks. Most recently, SUNWIND was updated on October 13, 2026 and Lifeline Batteries on October 23, 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.*