# BatterySync vs SubFeeds

The clearest difference is in-app purchases: SubFeeds at none against BatterySync's 2. SubFeeds also leads on update cadence (every 4 days vs every 2 months) and iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. BatterySync sells 2 in-app purchases, starting at $3.99 per month. SubFeeds asks for nothing beyond the download.

BatterySync ships an update every 2 months, SubFeeds every 4 days. The most recent releases landed on September 10, 2026 and August 13, 2026 respectively.

## The numbers

| Metric | BatterySync | SubFeeds |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (3 ratings)](https://appshunter.io/ios/app/subfeeds-ai-rss-reader/id6745493906/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | — | Free |
| Size | 61 MB | 63 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Epsilon Labs, LLC.](https://appshunter.io/developer/1773895537) | [Subaio Limited](https://appshunter.io/developer/1687419675) |

## What reviewers say

### BatterySync

[App page](https://appshunter.io/ios/app/batterysync/id6740754706)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BatterySync Premium Monthly | $3.99 | per month |
| BatterySync Premium Yearly | $39.99 | per year |


### SubFeeds

[App page](https://appshunter.io/ios/app/subfeeds-ai-rss-reader/id6745493906)

This AI-powered news aggregator consolidates your favorite blogs, news sites, and newsletters into a single, personalized feed. It offers AI summaries, sentiment analysis, smart filtering, and offline reading for a focused and efficient news consumption experience.

**Highlights:** AI-powered summaries and sentiment tags, One-tap subscribe and cross-device sync, Smart filters, tags, and highlights, Clean, distraction-free reading with Dark Mode, Offline reading and full-text extraction, Privacy-first and ad-free experience

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

**In-app purchases:** none


## Frequently asked questions

### Is BatterySync free?

BatterySync is free to download, with in-app purchases available.

### Is SubFeeds free?

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

### Do BatterySync or SubFeeds have ads?

Neither BatterySync nor SubFeeds shows ads.

### Which is updated more often, BatterySync or SubFeeds?

BatterySync ships an update every 2 months, and SubFeeds every 4 days. Most recently, BatterySync was updated on September 10, 2026 and SubFeeds on August 13, 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.*