# Trojan SmartBattery App vs lang

The clearest difference is update cadence: lang at every 9 days against Trojan SmartBattery App's monthly. Trojan SmartBattery App's advantage is iOS requirement (16.0 vs 18.2). 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.

Trojan SmartBattery App ships an update monthly, lang every 9 days. The most recent releases landed on October 23, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Trojan SmartBattery App | lang |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (5 ratings)](https://appshunter.io/ios/app/trojan-smartbattery-app/id6444421359/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 9 days** |
| Monetization | Free | — |
| Size | 6 MB | 2 MB |
| Requires iOS | **16.0** | 18.2 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Trojan Battery](https://appshunter.io/developer/1654570062) | [Nikolai Bazlov](https://appshunter.io/developer/6785272410) |

## What reviewers say

### Trojan SmartBattery App

[App page](https://appshunter.io/ios/app/trojan-smartbattery-app/id6444421359)

Monitor your smart batteries remotely via Bluetooth. View real-time charge levels, voltage, current, and Ahr usage. Receive notifications for alarms and access detailed battery information, including manufacturer and serial number.

**Highlights:** Bluetooth battery connection, Real-time SoC, voltage, and current monitoring, Multiple battery support, Detailed battery information, Alarm notifications, User manual link

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

**In-app purchases:** none


### lang

[App page](https://appshunter.io/ios/app/lang-lang/id6785272408)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Trojan SmartBattery App free?

Trojan SmartBattery App is free to download, with no in-app purchases.

### Is lang free?

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

### Do Trojan SmartBattery App or lang have ads?

Neither Trojan SmartBattery App nor lang shows ads.

### Which is updated more often, Trojan SmartBattery App or lang?

Trojan SmartBattery App ships an update monthly, and lang every 9 days. Most recently, Trojan SmartBattery App was updated on October 23, 2026 and lang on October 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.*