# Metarize

> Metarize (iPhone/iPad app by Pierre-Marc Fournier.)

- Source: https://appshunter.io/ios/app/metarize/id6747735216 (this page in markdown: same URL + `.md`)
- Developer: [Pierre-Marc Fournier](https://appshunter.io/developer/1605485924)
- Category: Weather
- Price: Free
- Age rating: 4+
- Requires: iOS 15.6 · 33 MB
- Languages: American English
- Released: 2025-08-05
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/metarize/id6747735216/reviews.md

## What is Metarize?

Metarize is a powerful tool to consult two iconic aviation weather products — METARs and TAFs — and use them for a variety of missions beyond aviation.

It leverages the properties of these weather products:
- Their compact, very quick to read format
- Their high quality, on which millions of lives depend
- Their global availability in a standard format

… and provides features to make them useful for a variety of critical missions
- Push notifications
- Discovery of local stations (using GPS or a map location)
- Monitoring and reporting of the integrity and recency of the data using visual color codes
- Offline support – refresh data in the background so it’s available to consult if connectivity is lost
- Part 107 readiness indication (“go”/”no-go” badge to assist with take-off decisions based upon visibility and cloud ceiling height)
- Decoding assistance, to help learn the format (it’s well worth the effort!)

More subtle design goals – some of these are still actively being worked on:
- Chain of trust – report any element that puts the integrity or recency of what it displayed in question
- Latency – use the lowest latency source possible
- Resiliency – make the app resilient to failures
- Security-minded – require no permissions beyond internet access (optionally use more permissions, see below)
- Tactical-friendliness – low light color scheme

Permissions:
- Internet – required, to download weather data
- Location – optional, to automatically display nearby stations
- Notifications – optional, for push notifications

Background-fetching (offline support) – this feature makes the app periodically (every 15 minutes in most cases) download an up to date METAR or TAF for each favorite station/product combination. If the device goes offline, the last data fetched will be available.


## Version history (last 4 releases)

### 1.2.0 — 2025-10-27

- settings: configurable warning and alert time thresholds
- nearby: usability improvements to search by place name
- decoding aid: parse many more blocks
- support for visibilities >= 100SM
- parse ice accretion amount
- parse visibility in meters
- FtpMetarApi: detect truncated metars (race with upstream update) and retry

### 1.1.0 — 2025-10-14

New parsing aid for 1xxx, 2xxx and 5xxx blocks
Pressure unit setting
Temperature units apply to precise temp 
Optional detection of loss of redundancy (with setting)
Details on nature of loss of redundancy by tapping icon
Redesigned "pills" for part 107 and flight rules
Display of pills on historical METARs
5 minute METAR support
Parsing help for historical METARs (tap on them)
Ability to request more historical metar or taf
Ability to tap five minute metar for explanation
Parsing of more precipitation fields and precip amount unit

### 1.0.11 — 2025-08-27

- New "nearby" search mode which allows to type the name of a location.
- Multi-fetch support: now two sources are queried to reduce likeliness of missing data in one source

### 1.0 — 2025-08-06

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-19.*