# Flightlogbackup vs HUD SONiC

The clearest difference is in-app purchases: HUD SONiC at none against Flightlogbackup's 4. HUD SONiC also leads on update cadence (every 5 days vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Flightlogbackup sells 4 in-app purchases, starting at $3.99 per month. HUD SONiC asks for nothing beyond the download.

Flightlogbackup ships an update every 6 weeks, HUD SONiC every 5 days. The most recent releases landed on October 4, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Flightlogbackup | HUD SONiC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/hud-sonic-pilot-logbook/id6785000977/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 days** |
| Monetization | — | Free |
| Size | 86 MB | 100 MB |
| Requires iOS | 16.4 | **16.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [FlightlogBackup](https://appshunter.io/developer/506315406) | [AEROMUSE, K.K.](https://appshunter.io/developer/6785000979) |

## What reviewers say

### Flightlogbackup

[App page](https://appshunter.io/ios/app/flightlogbackup-flb/id6756682142)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FLB Technician Premiuim | $3.99 | per month |
| FLB Technician Premiuim | $4.99 | per month |
| FLB Technician Premiuim | $29.99 | per year |
| FLB Pilot Premium | $39.99 | per year |


### HUD SONiC

[App page](https://appshunter.io/ios/app/hud-sonic-pilot-logbook/id6785000977)

This app simplifies flight logging for professional pilots by automatically detecting flights near airports. It helps track flight experience, aircraft types, and career possibilities, built by pilots for pilots.

**Highlights:** Automated flight detection near airports, Manual logbook entry reduction, Flight experience tracking by aircraft, Career opportunity exploration, Import and export flight records, Pilot-centric design

**In-app purchases:** none


## Frequently asked questions

### Is Flightlogbackup free?

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

### Is HUD SONiC free?

HUD SONiC is free to download, with no in-app purchases.

### Do Flightlogbackup or HUD SONiC have ads?

Neither Flightlogbackup nor HUD SONiC shows ads.

### Which is updated more often, Flightlogbackup or HUD SONiC?

Flightlogbackup ships an update every 6 weeks, and HUD SONiC every 5 days. Most recently, Flightlogbackup was updated on October 4, 2026 and HUD SONiC on October 18, 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.*