Bad Elf Wombat vs MachDB
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bad Elf Wombat
This free utility app works with the Bad Elf Wombat hardware accessory. It enables pilots to download aviation databases and transfer them to a USB drive or SD card. It also facilitates the collection and uploading of flight and engine logs to various aviation analysis sites.
- Download aviation databases
- Transfer data to USB/SD via Wombat accessory
- Collect flight and engine logs
- Upload logs to analysis sites
- Check hardware health
- Perform firmware updates
- Format media
Read full descriptionHide full description
This free utility app is used in conjunction with the Bad Elf Wombat hardware accessory. This app allows pilots and operators to download aviation databases from compatible avionics websites to their iPad or iPhone via Wi-Fi or cellular. Once downloaded, the user can then connect to the Bad Elf Wombat accessory via Wi-Fi to transfer the database(s) to a USB drive or SD card. Pilots can also collect flight and engine logs from compatible avionics, and upload them to sites such as SavvyAnalysis, CirrusReports, and myTBM.aero. Logs can also be shared with 3rd party apps such as CloudAhoy, Dropbox, or the Mail app. This app also allows the user to check the health of their Wombat hardware, perform firmware updates, and format USB/SD media. Visit www.bad-elf.com/wombat to learn more about the Bad Elf Wombat accessory.
MachDB
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.
- 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
Read full descriptionHide full description
MachDB allows you to download and transfer aviation database updates to an SD card or USB key in seconds using your iPhone or iPad for fast updates in the field. Supports Garmin, Avidyne, and Pro Line avionics. All you need is your iPhone or iPad and a standard USB-C SD card reader (for SD updates) or USB-A to C cable (for USB updates). No proprietary hardware required! Download updates fast over Wi-Fi or Cellular connections. MachDB is compatible with all modern Garmin, Avidyne, and Pro Line avionics, using your existing Jeppesen or Garmin database account. No additional subscription or cost required. Supported avionics include: -Garmin G1000, G1000 Nxi, Perspective and Perspective + -Garmin G2000, G3000, G3X and Perspective Touch -Garmin Axis, G500, G600, G700, GTN 600 and 700 Xi -All other Garmin avionics using SD card or USB key for updates -Avidyne IFD, Vantage, and Entegra -Collins Pro Line 21 and Pro Line Fusion Supported Database Providers: -Jeppesen -Garmin
Screenshots
Verdict
The clearest difference is rating: Bad Elf Wombat at 5.0 against MachDB's 4.3. Bad Elf Wombat also leads on iOS requirement (9.0 vs 17.0). On price, ratings volume, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Bad Elf Wombat holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 8 and 6 respectively.
Bad Elf Wombat ships an update every 4 weeks, MachDB every 2 weeks. The most recent releases landed on November 2, 2026 and November 9, 2026 respectively.
| Parameter | Bad Elf Wombat | MachDB |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (8 ratings) — better | 4.3 (6 ratings) |
| Positive reviews | — | 66.7% of reviews |
| Number of ratings | 8 — better | 6 |
| Update frequency | Every 4 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 51 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Bad Elf, LLC. | MachDB LLC |
Customer experience
Bad Elf Wombat
MachDB
In-app purchases
Bad Elf Wombat
No in-app purchases
MachDB
No in-app purchases







