# Ionic Red Batteries vs ZUMI

The clearest difference is review sentiment: Ionic Red Batteries at 50% against ZUMI's 6%. Ionic Red Batteries also leads on rating (3.4 vs 1.9) and iOS requirement (12.0 vs 15.0). ZUMI's advantage is ratings volume (51 vs 10). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Ionic Red Batteries holds the better App Store score, 3.4 against 1.9. That said, the two scores are not equally well evidenced: ZUMI has 51 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 50% of Ionic Red Batteries's written reviews are positive against 6% of ZUMI's.

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

## The numbers

| Metric | Ionic Red Batteries | ZUMI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (10 ratings)](https://appshunter.io/ios/app/ionic-red-batteries/id1485708837/reviews)** | [1.9 (51 ratings)](https://appshunter.io/ios/app/zumi/id6504392181/reviews) |
| Number of ratings | 10 | **51** |
| Positive reviews | **50.0% of reviews** | 6.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 3 MB | 63 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [深圳市南霸科技有限公司](https://appshunter.io/developer/1485708836) | [SHANGHAI SIRUI TRADING LIMITED COMPANY](https://appshunter.io/developer/1752072289) |

## What reviewers say

### Ionic Red Batteries

[App page](https://appshunter.io/ios/app/ionic-red-batteries/id1485708837)

Monitor your car, boat, or UTV's battery status remotely via Bluetooth. This app allows for instant battery condition checks and even remote emergency starting, all from your device.

**Highlights:** Remote battery monitoring, Instant battery status, Emergency jumpstart activation, Bluetooth connectivity, Battery condition analysis, Discharge and charge time calculation

**Features:** macOS Compatibility

**In-app purchases:** none


### ZUMI

[App page](https://appshunter.io/ios/app/zumi/id6504392181)

Control your automatic gate opener system remotely. This smart home app allows for convenient and secure access management from your mobile device.

**Highlights:** Remote gate control, Smart home integration, Automatic gate systems, Secure access management

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ionic Red Batteries free?

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

### Is ZUMI free?

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

### Which has better reviews, Ionic Red Batteries or ZUMI?

Ionic Red Batteries is rated higher. Ionic Red Batteries averages 3.4 out of 5 from 10 ratings, while ZUMI averages 1.9 from 51 ratings.

### Do Ionic Red Batteries or ZUMI have ads?

Neither Ionic Red Batteries nor ZUMI shows ads.

### Which is updated more often, Ionic Red Batteries or ZUMI?

Ionic Red Batteries ships an update every 2 months, and ZUMI every 2 months. Most recently, Ionic Red Batteries was updated on November 3, 2026 and ZUMI on November 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.*