# BTC Catalog vs Zaflo

BTC Catalog and Zaflo are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

BTC Catalog ships an update every 3 days, Zaflo every 4 days. The most recent releases landed on October 19, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | BTC Catalog | Zaflo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 4 days |
| Size | 2 MB | 15 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bullion Trading Center](https://appshunter.io/developer/1787775173) | [Youssef Abdella](https://appshunter.io/developer/6776085598) |

## What reviewers say

### BTC Catalog

[App page](https://appshunter.io/ios/app/btc-catalog/id6753200820)

**Features:** macOS Compatibility

**In-app purchases:** none


### Zaflo

[App page](https://appshunter.io/ios/app/zaflo/id6776085596)

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

**In-app purchases:** none


## Frequently asked questions

### Is BTC Catalog free?

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

### Is Zaflo free?

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

### Do BTC Catalog or Zaflo have ads?

Neither BTC Catalog nor Zaflo shows ads.

### Which is updated more often, BTC Catalog or Zaflo?

BTC Catalog ships an update every 3 days, and Zaflo every 4 days. Most recently, BTC Catalog was updated on October 19, 2026 and Zaflo on September 20, 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.*