# Author BT Update vs DropReference

The clearest difference is update cadence: DropReference at daily against Author BT Update's monthly. 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.

Author BT Update ships an update monthly, DropReference daily. The most recent releases landed on October 10, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Author BT Update | DropReference |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dropreference/id6802945935/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Daily** |
| Monetization | — | Free |
| Size | 4 MB | 53 MB |
| Requires iOS | **16.0** | 16.4 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [AUTHOR-ALARM](https://appshunter.io/developer/1344731145) | [DropReference](https://appshunter.io/developer/6802945937) |

## What reviewers say

### Author BT Update

[App page](https://appshunter.io/ios/app/author-bt-update/id6475983875)

**Features:** macOS Compatibility

**In-app purchases:** none


### DropReference

[App page](https://appshunter.io/ios/app/dropreference/id6802945935)

This app helps gamers build their ideal PC without overspending or extensive research. It offers guided, expert, and community-driven build options, price comparisons, and FPS estimates for popular games.

**Highlights:** Guided PC configuration, Expert part selection with filters, Community-assisted builds, Merchant price comparison, Price history and drop alerts, Estimated FPS for 148 games, GPU performance comparison

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

**In-app purchases:** none


## Frequently asked questions

### Is Author BT Update free?

Author BT Update is free to download, with no in-app purchases.

### Is DropReference free?

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

### Do Author BT Update or DropReference have ads?

Neither Author BT Update nor DropReference shows ads.

### Which is updated more often, Author BT Update or DropReference?

Author BT Update ships an update monthly, and DropReference daily. Most recently, Author BT Update was updated on October 10, 2026 and DropReference on October 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.*