# AstroPup Horizon vs MachDB

The clearest difference is iOS requirement: MachDB at 17.0 against AstroPup Horizon's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

AstroPup Horizon ships an update every 10 days, MachDB every 2 weeks. The most recent releases landed on October 28, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | AstroPup Horizon | MachDB |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (6 ratings)](https://appshunter.io/ios/app/machdb/id6757681004/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 2 weeks |
| Monetization | — | Free |
| Size | 115 MB | 18 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Aaron Freimark](https://appshunter.io/developer/1533614349) | [MachDB LLC](https://appshunter.io/developer/1868240819) |

## What reviewers say

### AstroPup Horizon

[App page](https://appshunter.io/ios/app/astropup-horizon/id6753884236)

**In-app purchases:** none


### MachDB

[App page](https://appshunter.io/ios/app/machdb/id6757681004)

Easily download and transfer aviation database updates to an SD card or USB key using your iPhone or iPad. Supports major avionics systems like Garmin, Avidyne, and Pro Line for quick field updates.

**Highlights:** Download and transfer aviation database updates, Supports SD card and USB key transfer, Compatible with Garmin, Avidyne, and Pro Line avionics, Fast updates over Wi-Fi or Cellular, No proprietary hardware required, Works with existing Jeppesen or Garmin accounts

**In-app purchases:** none


## Frequently asked questions

### Is AstroPup Horizon free?

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

### Is MachDB free?

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

### Do AstroPup Horizon or MachDB have ads?

Neither AstroPup Horizon nor MachDB shows ads.

### Which is updated more often, AstroPup Horizon or MachDB?

AstroPup Horizon ships an update every 10 days, and MachDB every 2 weeks. Most recently, AstroPup Horizon was updated on October 28, 2026 and MachDB 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.*