# a Quick Call vs BatteryWatch

The clearest difference is update cadence: BatteryWatch at every 3 days against a Quick Call's every 126 months. a Quick Call's advantage is iOS requirement (15.6 vs 26.4). 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.

a Quick Call ships an update every 126 months, BatteryWatch every 3 days. The most recent releases landed on October 4, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | a Quick Call | BatteryWatch |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 126 months | **Every 3 days** |
| Size | 4 MB | 8 MB |
| Requires iOS | **15.6** | 26.4 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [KUNIHIRO FUZII](https://appshunter.io/developer/1028336520) | [Shunsuke Kubo](https://appshunter.io/developer/6772584174) |

## What reviewers say

### a Quick Call

[App page](https://appshunter.io/ios/app/a-quick-call/id1061394838)

**Features:** Vision Pro support

**In-app purchases:** none


### BatteryWatch

[App page](https://appshunter.io/ios/app/batterywatch/id6775494762)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is a Quick Call free?

a Quick Call is free to download, with no in-app purchases.

### Is BatteryWatch free?

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

### Do a Quick Call or BatteryWatch have ads?

Both a Quick Call and BatteryWatch show ads.

### Which is updated more often, a Quick Call or BatteryWatch?

a Quick Call ships an update every 126 months, and BatteryWatch every 3 days. Most recently, a Quick Call was updated on October 4, 2026 and BatteryWatch 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.*