# ZT Smart Battery vs Ener Pro

The clearest difference is update cadence: Ener Pro at every 5 weeks against ZT Smart Battery's every 9 months. ZT Smart Battery's advantage is iOS requirement (11.0 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.

ZT Smart Battery ships an update every 9 months, Ener Pro every 5 weeks. The most recent releases landed on October 16, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | ZT Smart Battery | Ener Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 5 weeks** |
| Size | 41 MB | 60 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Shenzhen zetara power system Co.,LTD](https://appshunter.io/developer/1774419082) | [刚 徐](https://appshunter.io/developer/6779306297) |

## What reviewers say

### ZT Smart Battery

[App page](https://appshunter.io/ios/app/zt-smart-battery/id6742175115)

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

**In-app purchases:** none


### Ener Pro

[App page](https://appshunter.io/ios/app/ener-pro/id6782823326)

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

**In-app purchases:** none


## Frequently asked questions

### Is ZT Smart Battery free?

ZT Smart Battery is free to download, with no in-app purchases.

### Is Ener Pro free?

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

### Do ZT Smart Battery or Ener Pro have ads?

Neither ZT Smart Battery nor Ener Pro shows ads.

### Which is updated more often, ZT Smart Battery or Ener Pro?

ZT Smart Battery ships an update every 9 months, and Ener Pro every 5 weeks. Most recently, ZT Smart Battery was updated on October 16, 2026 and Ener Pro on November 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*