Comparison

Metar vs Adiabat

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

Head to head
About

Metar

This app visualizes aviation weather reports (METAR and TAF) for airports worldwide. It offers easy-to-understand metrics, weather symbols, crosswind calculations, and flight rule categories. Users can listen to decoded reports, track favorite stations, and view historical weather trends.

Highlights
  • Visualized METAR and TAF data
  • Weather symbols and flight rule categories
  • Crosswind calculations
  • Text-to-speech readout
  • Favorite station tracking
  • Interactive airport map
  • Weather trend graphs
Features
Currently charting
Read full description

Visualized METAR and TAF weather information for all airports in the world. Concise summary of everything you need to know about today's aviation weather. METAR features: - Visualized in easy to understand and colourful metrics - Weather symbols for significant weather and clouds, like in a non-aviation weather report - Crosswind calculations, by combining METAR and runway information - Flight rules category: VFR, MVFR, IFR, LIFR - Read out by text-to-speech available, listen to a decoded METAR while doing other things TAF features: - TAF broken down and displayed per hour in a table - Show sunrise/sunset, minimum and maximum temperature Keeping track: - Add your favorite stations to the list, see their weather at a glance - Get observations near your location - Find stations in the interactive map with weather codes - Search airports by ICAO code or name History: - Graphs with weather trends today and yesterday: temperature, visibility, wind speed, QNH - METAR history for the last hours and link to more on the website Airport information: - See information about the airports, like runway directions, elevation, location - If the airport doesn't report a METAR, the nearest station used for calculations Calculations: - All units are customizable units: speed (knots, km/h, m/s, mph), altitude (meters/feet), visibility (kilometers/miles), temperature (Celcius/Fahrenheit) and air pressure (Hectopascal, Inch Hg) - Times are converted to the local time for each airport - Sunrise and sunset are calculated based on the airports latitude/longitude General: - METAR, TAF and airport data are automatically saved for offline use - Available in 6 languages: English, Dutch, Spanish, Portuguese, German and French

About

Adiabat

Features
Read full description

Adiabat reads weather-balloon soundings on iPhone and iPad: a full Skew-T log-P diagram, parcel analysis, severe-weather parameters and a hodograph, all computed on your device. One purchase, no subscription, no account. NEW IN 3.0 • Severe-weather composites: fixed-layer Significant Tornado Parameter (STP), Significant Hail Parameter (SHIP), SWEAT and the Showalter index, using the published SPC, Miller (1972) and Showalter (1953) definitions. • Downdraft and convection values: DCAPE, wet-bulb zero height, convective condensation level and convective temperature. • PDF report: save the Skew-T, every parcel and index value, the layer diagnostics and the full level table as a printable PDF. • More accurate parcels: the level of free convection is found correctly when a parcel is buoyant right at its LCL, CAPE and CIN are split exactly at zero-buoyancy crossings, and the lifted index is taken at exactly 500 hPa. Storm motion follows Bunkers et al. (2000). • Checked against published values: for the bundled Norman, Oklahoma soundings, the Showalter index, K-index, Total Totals, precipitable water, MUCAPE, DCAPE and convective temperature agree closely with the University of Wyoming's published sounding indices. • Import fixes: University of Wyoming tables with blank columns or wind speeds in m/s (SPED) are now read correctly. • Clearer hazards: possible-icing layers, near-saturated layers and above-freezing layers aloft are shown without invented severity or cloud-cover labels. SKEW-T AND PARCELS Temperature, dewpoint, dry and moist adiabats, mixing-ratio lines, wind barbs and the lifted parcel with CAPE/CIN shading. Surface-based, mixed-layer and most-unstable parcels with CAPE, CIN, LCL, LFC, EL and lifted index. WIND AND STORM MOTION Hodograph coloured by height, Bunkers right and left movers, 0–1 and 0–6 km shear, 0–1 and 0–3 km storm-relative helicity and EHI. YOUR OWN SOUNDINGS Import University of Wyoming text tables, CSV/TSV or JSON, or build and edit a profile level by level. Profile Compare places two saved soundings on a common 25 hPa grid and exports a CSV. ALSO INCLUDED A 75,000+ station locator, offline terrain cross-sections, a reference library explaining every index, and seven real sample soundings from NOAA's Integrated Global Radiosonde Archive (IGRA v2). WHAT TO KNOW Adiabat analyses the soundings you import or enter plus the bundled samples; it does not download live data. Results are educational diagnostics from a single profile, not forecasts, watches or warnings. Use official weather and aviation products for decisions. iPhone and iPad. No account and no tracking; your soundings stay on your device.

Screenshots

Metar4 screens
Adiabat4 screens

Verdict

The call

The clearest difference is price: Adiabat at $0.99 against Metar's $5.99. Metar's advantage is chart position (#15 vs unranked) and iOS requirement (15.1 vs 17.0). On update cadence, ads, in-app purchases and device support 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

Metar costs $5.99 and Adiabat $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Metar ships an update monthly, Adiabat fortnightly. The most recent releases landed on November 7, 2026 and November 10, 2026 respectively.

Scorecard3 real differences · 8 level
Metar versus Adiabat: the parameters behind the verdict, then further details
ParameterMetarAdiabat
Price$5.99$0.99 — better
Rating4.8 (586 ratings) — better—
Positive reviews77.1% of reviews—
Number of ratings586 — better—
Update frequencyMonthlyFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
Best chart rank#15 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better17.0
Further details — not scored
Size41 MB24 MB
Age rating4+4+
DeveloperEveline van den BoomRobert Corbin

Bugs and requests

Metar

Reported bugs

8 issues
  • Autocorrect adds unwanted spaces to airport codes
  • Visual cloud base off by 2000 feet on iPad
  • Screen goes black when searching for airports
  • App badge cannot be cleared
  • Browse Older Metars redirects to blank website
Show 3 more
  • App defaults to portrait mode on iPad
  • Incorrect METAR data shown for nearby airports instead of requested airport
  • Excessive 'verify you're human' prompts after donation

Requested features

14 requests
  • Home screen widget support
  • Crosswind with gust information
  • Runway alignment feature in app (not just web)
  • Dewpoint and temperature meteogram graph
  • Runway degree headings display
Show 9 more
  • Split-screen support for iPad
  • Refresh button on active METAR page
  • Ability to sort favorite airports
  • Landscape mode default for iPad
  • Unit conversion tools (gallons/liters)
  • MSFS 2020 integration or compatibility
  • Extended METAR history (12+ hours)
  • Disable autocorrect option for search
  • More comprehensive airport coverage

Adiabat

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Metar

No in-app purchases

None

Adiabat

No in-app purchases

Questions

Is Metar free?
Metar costs $5.99, with no in-app purchases.
Is Adiabat free?
Adiabat costs $0.99, with no in-app purchases.
Do Metar or Adiabat have ads?
Neither Metar nor Adiabat shows ads.
Which is updated more often, Metar or Adiabat?
Metar ships an update monthly, and Adiabat fortnightly. Most recently, Metar was updated on November 7, 2026 and Adiabat on November 10, 2026.

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