# Eastman World vs BAT

The clearest difference is ads: Eastman World at none against BAT's shown. Eastman World also leads on iOS requirement (12.4 vs 16.6). On price, update cadence, 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.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 2, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Eastman World | BAT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (3 ratings)](https://appshunter.io/ios/app/bat-bms-pro/id6758682329/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | — | Ad-supported |
| Size | 72 MB | 18 MB |
| Requires iOS | **12.4** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 12+ |
| Developer | [Chengdu E-Linter Information Technology Co., Ltd.](https://appshunter.io/developer/1149235329) | [Mouad Bousbaa](https://appshunter.io/developer/1868764561) |

## What reviewers say

### Eastman World

[App page](https://appshunter.io/ios/app/eastman-world/id6499481348)

**Features:** macOS Compatibility

**In-app purchases:** none


### BAT

[App page](https://appshunter.io/ios/app/bat-bms-pro/id6758682329)

Monitor and manage your lithium batteries in real-time with instant access to battery health, charging status, voltage, current, and temperature. This app provides advanced diagnostics and a clear interface for various applications like RVs, solar systems, and EVs.

**Highlights:** Real-time battery monitoring, Battery dashboard (SOC, SOH, voltage, current), Individual cell monitoring, Temperature monitoring, Advanced diagnostics and fault detection, Runtime estimator, Clean and professional interface

**In-app purchases:** none


## Frequently asked questions

### Is Eastman World free?

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

### Is BAT free?

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

### Do Eastman World or BAT have ads?

BAT shows ads; Eastman World does not.

### Which is updated more often, Eastman World or BAT?

Eastman World ships an update every 3 months, and BAT every 3 months. Most recently, Eastman World was updated on October 2, 2026 and BAT on October 8, 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.*