# Backyard Bird Feeder vs FeatureOS

The clearest difference is update cadence: FeatureOS at every 5 days against Backyard Bird Feeder's every 4 months. Backyard Bird Feeder's advantage is iOS requirement (9.0 vs 18.0). 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.

Backyard Bird Feeder ships an update every 4 months, FeatureOS every 5 days. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Backyard Bird Feeder | FeatureOS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 days** |
| Size | 194 MB | 8 MB |
| Requires iOS | **9.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [The Backyard Bird Feeder, Inc](https://appshunter.io/developer/1622129810) | [Skcript](https://appshunter.io/developer/1281209228) |

## What reviewers say

### Backyard Bird Feeder

[App page](https://appshunter.io/ios/app/backyard-bird-feeder/id1622129808)

**Features:** macOS Compatibility

**In-app purchases:** none


### FeatureOS

[App page](https://appshunter.io/ios/app/featureos/id6746332459)

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

**In-app purchases:** none


## Frequently asked questions

### Is Backyard Bird Feeder free?

Backyard Bird Feeder is free to download, with no in-app purchases.

### Is FeatureOS free?

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

### Do Backyard Bird Feeder or FeatureOS have ads?

Neither Backyard Bird Feeder nor FeatureOS shows ads.

### Which is updated more often, Backyard Bird Feeder or FeatureOS?

Backyard Bird Feeder ships an update every 4 months, and FeatureOS every 5 days. Most recently, Backyard Bird Feeder was updated on November 3, 2026 and FeatureOS on November 5, 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.*