# Airport ID vs Sequence Decoder

The clearest difference is rating: Sequence Decoder at 4.6 against Airport ID's 3.7. Sequence Decoder also leads on in-app purchases (none vs 1) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Airport ID sells 1 in-app purchase, starting at $4.99 per year. Sequence Decoder asks for nothing beyond the download.

Sequence Decoder holds the better App Store score, 4.6 against 3.7. Both are backed by a comparable volume of ratings — 63 and 238 respectively. Written reviews point the same way: 62% of Airport ID's written reviews are positive against 76% of Sequence Decoder's.

Airport ID ships an update every 10 months, Sequence Decoder every 3 weeks. The most recent releases landed on September 30, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Airport ID | Sequence Decoder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (63 ratings)](https://appshunter.io/ios/app/airport-id/id1071729226/reviews) | **[4.6 (238 ratings)](https://appshunter.io/ios/app/sequence-decoder/id1439988599/reviews)** |
| Number of ratings | 63 | **238** |
| Positive reviews | 61.5% of reviews | **75.6% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 10 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 110 MB | 16 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ulrich Helker](https://appshunter.io/developer/1330497021) | [Jeffrey REISBERG](https://appshunter.io/developer/1229355592) |

## What reviewers say

### Airport ID

[App page](https://appshunter.io/ios/app/airport-id/id1071729226)

Quickly find and identify three and four-letter airport codes (IATA, ICAO, FAA) globally. Access detailed airport information, view locations on maps, and search offline.

**Highlights:** Search 30,000+ airports, Offline search functionality, Wikipedia information lookup, Open location in Google Maps, Easy-to-use keypad identification

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ad banner | $4.99 | per year |


### Sequence Decoder

[App page](https://appshunter.io/ios/app/sequence-decoder/id1439988599)

Access real-time and historical flight data for any airport, including departures, arrivals, and individual flight details. Flight attendants receive specialized tools for managing schedules, alerts, crew communication, and legal compliance.

**Highlights:** Airport departure/arrival info, Individual flight lookup, Flight attendant alerts, Crew scheduling tools, Legality checker, Crew communication

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Makes reserve life easier
- 👍 Helps line holders
- 👍 Incredible availability info
- 👍 Life changing app
- 👍 Streamlines work life

**What reviewers complain about**

- 🐛 Open time trips not listed
- 🐛 Calendar sync issues
- 🐛 App not working
- 🐛 Useless when not working
- 🐛 App not loading trips

**Reported bugs**

- Trips no longer listed in open time after update
- Cannot sync calendar
- App not loading trips or showing standbys
- Open time and call out list not working
- Jeffnet not loading data

**Requested features**

- Enable Face ID login when importing via browser
- Bring back hotel info


## Frequently asked questions

### Is Airport ID free?

Airport ID is free to download, with in-app purchases available.

### Is Sequence Decoder free?

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

### Which has better reviews, Airport ID or Sequence Decoder?

Sequence Decoder is rated higher. Airport ID averages 3.7 out of 5 from 63 ratings, while Sequence Decoder averages 4.6 from 238 ratings.

### Do Airport ID or Sequence Decoder have ads?

Airport ID shows ads; Sequence Decoder does not.

### Which is updated more often, Airport ID or Sequence Decoder?

Airport ID ships an update every 10 months, and Sequence Decoder every 3 weeks. Most recently, Airport ID was updated on September 30, 2026 and Sequence Decoder on October 6, 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.*