Comparison

Phenom Landings vs MachDB

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Phenom Landings

This app provides a quick and transparent calculator for Embraer Phenom 100 and 300 aircraft landing distances. It adjusts for critical conditions like weight, wind, and temperature, and includes built-in safety checks to prevent unsafe results.

Highlights
  • Phenom 100 & 300 performance calculations
  • Adjustable environmental factors
  • Built-in safety limit checks
  • Extensive airport and runway database
  • Live METAR/TAF weather integration
  • Camera-based weather scanning
  • Siri integration and home-screen widget
Features
Read full description

Phenom Landings turns the QRH operational distance landing tables for the Embraer Phenom 100 and Phenom 300 into a fast, transparent calculator you can run right at the runway — with the conditions that actually matter and a built-in check that refuses to hand you an unsafe number. PERFORMANCE • Phenom 100 (E50P) and Phenom 300 (E55P), with both FAA and EASA data • Adjusts for weight, flaps, head/tailwind, crosswind, temperature, field elevation, runway slope, runway condition (RWYCC 1–6), ice accretion, overweight, and speed above Vref • Full penalty breakdown — see exactly how each factor changes the distance • Hard operational limits (slope beyond ±2%, tailwind beyond 10 kt) block the result instead of showing a dangerous one AIRPORTS & RUNWAYS BUILT IN • Search tens of thousands of airports worldwide • Per-runway length, surface, slope, and Landing Distance Available (LDA) • Automatic best-runway suggestion based on the wind • US runway slopes from FAA surveyed elevations and published Chart Supplements — with a clear "verify" caution whenever the data is uncertain WEATHER IN ONE TAP • Live METAR observations and TAF forecasts • Pick a forecast time to plan ahead • No signal? Scan a METAR or TAF from your camera or a photo of the METAR on your MFD. The app reads the wind and temperature for you FITS HOW YOU FLY • Ask Siri: "Calculate landing distance at KSFO in Phenom Landings" • Share a weather screenshot straight into the app • Home-screen widget and iCloud sync for your favorite airports • Quick, glove-friendly input designed for the flight deck IMPORTANT Phenom Landings is an advisory planning aid, not an official performance source. Always verify against the approved Airplane Flight Manual (AFM), Pilot's Operating Handbook (POH), and Quick Reference Handbook (QRH). Data and weather may be incomplete or contain errors.

About

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.

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
Read 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

Phenom Landings4 screens
MachDB3 screens

Verdict

The call

The clearest difference is rating: Phenom Landings at 5.0 against MachDB's 4.3. Phenom Landings also leads on review sentiment (100% vs 67%). MachDB's advantage is update cadence (every 2 weeks vs every 2 months) and ratings volume (6 vs 1). On price, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

Phenom Landings holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: MachDB has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Phenom Landings's written reviews are positive against 67% of MachDB's.

UpkeepUpdate frequency

Phenom Landings ships an update every 2 months, MachDB every 2 weeks. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

Scorecard5 real differences · 5 level
Phenom Landings versus MachDB: the parameters behind the verdict, then further details
ParameterPhenom LandingsMachDB
PriceFreeFree
Rating5.0 (1 ratings) — better4.3 (6 ratings)
Positive reviews100.0% of reviews — better66.7% of reviews
Number of ratings16 — better
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.017.0 — better
Further details — not scored
Size16 MB18 MB
Age rating4+4+
DeveloperDiogo RauMachDB LLC

Customer experience

Phenom Landings

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

MachDB

All ratings6 ratings
Positive83.3%
Neutral0.0%
Negative16.7%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

None

Phenom Landings

No in-app purchases

None

MachDB

No in-app purchases

Questions

Is Phenom Landings free?
Phenom Landings is free to download, with no in-app purchases.
Is MachDB free?
MachDB is free to download, with no in-app purchases.
Which has better reviews, Phenom Landings or MachDB?
Phenom Landings is rated higher. Phenom Landings averages 5.0 out of 5 from 1 ratings, while MachDB averages 4.3 from 6 ratings.
Do Phenom Landings or MachDB have ads?
Neither Phenom Landings nor MachDB shows ads.
Which is updated more often, Phenom Landings or MachDB?
Phenom Landings ships an update every 2 months, and MachDB every 2 weeks. Most recently, Phenom Landings was updated on November 3, 2026 and MachDB on November 5, 2026.

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