# Sequence Decoder vs Crew Rest Calculator

The clearest difference is review sentiment: Sequence Decoder at 76% against Crew Rest Calculator's 20%. Sequence Decoder also leads on rating (4.6 vs 2.7) and update cadence (every 3 weeks vs every 5 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Sequence Decoder holds the better App Store score, 4.6 against 2.7. That said, the two scores are not equally well evidenced: Sequence Decoder has 238 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 76% of Sequence Decoder's written reviews are positive against 20% of Crew Rest Calculator's.

Sequence Decoder ships an update every 3 weeks, Crew Rest Calculator every 5 months. The most recent releases landed on September 22, 2026 and June 5, 2026 respectively.

## The numbers

| Metric | Sequence Decoder | Crew Rest Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (238 ratings)](https://appshunter.io/ios/app/sequence-decoder/id1439988599/reviews)** | [2.7 (3 ratings)](https://appshunter.io/ios/app/crew-rest-calculator/id1662243748/reviews) |
| Number of ratings | **238** | 3 |
| Positive reviews | **75.6% of reviews** | 20.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 months |
| Monetization | Free | Free |
| Size | 16 MB | 30 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jeffrey REISBERG](https://appshunter.io/developer/1229355592) | [WILL3D](https://appshunter.io/developer/1662243750) |

## What reviewers say

### 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


### Crew Rest Calculator

[App page](https://appshunter.io/ios/app/crew-rest-calculator/id1662243748)

Instantly calculate fair and exact rest periods for flight crews using Zulu time. This app handles standard and complex shift rotations, ensuring no crew member's break is cut short. It offers smart time parsing and organizational tools with alerts.

**Highlights:** Calculate shift rotations in Zulu time, Easy and Advanced calculation modes, Fair rest time distribution, Smart Zulu time parsing (HH:MM, HHMM, HMM), Assign names to rest slots, Vibration and notification alerts

**In-app purchases:** none


## Frequently asked questions

### Is Sequence Decoder free?

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

### Is Crew Rest Calculator free?

Crew Rest Calculator is free to download, with no in-app purchases.

### Which has better reviews, Sequence Decoder or Crew Rest Calculator?

Sequence Decoder is rated higher. Sequence Decoder averages 4.6 out of 5 from 238 ratings, while Crew Rest Calculator averages 2.7 from 3 ratings.

### Do Sequence Decoder or Crew Rest Calculator have ads?

Neither Sequence Decoder nor Crew Rest Calculator shows ads.

### Which is updated more often, Sequence Decoder or Crew Rest Calculator?

Sequence Decoder ships an update every 3 weeks, and Crew Rest Calculator every 5 months. Most recently, Sequence Decoder was updated on September 22, 2026 and Crew Rest Calculator on June 5, 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.*