# Rabbit RSSリーダー vs BatteryWatch

The clearest difference is update cadence: BatteryWatch at every 2 days against Rabbit RSSリーダー's every 23 months. Rabbit RSSリーダー's advantage is iOS requirement (15.0 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.

Rabbit RSSリーダー ships an update every 23 months, BatteryWatch every 2 days. The most recent releases landed on September 19, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Rabbit RSSリーダー | BatteryWatch |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 23 months | **Every 2 days** |
| Size | 43 MB | 8 MB |
| Requires iOS | **15.0** | 26.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [RANRAN Solutions](https://appshunter.io/developer/1760305402) | [Shunsuke Kubo](https://appshunter.io/developer/6772584174) |

## What reviewers say

### Rabbit RSSリーダー

[App page](https://appshunter.io/ios/app/rabbit-rss/id6736563258)

**Features:** macOS Compatibility, 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 Rabbit RSSリーダー free?

Rabbit RSSリーダー is free to download, with no in-app purchases.

### Is BatteryWatch free?

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

### Do Rabbit RSSリーダー or BatteryWatch have ads?

Both Rabbit RSSリーダー and BatteryWatch show ads.

### Which is updated more often, Rabbit RSSリーダー or BatteryWatch?

Rabbit RSSリーダー ships an update every 23 months, and BatteryWatch every 2 days. Most recently, Rabbit RSSリーダー was updated on September 19, 2026 and BatteryWatch on September 22, 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.*