# SUM Air vs Troovy 트루비

SUM Air and Troovy 트루비 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

SUM Air ships an update every 3 weeks, Troovy 트루비 every 11 days. The most recent releases landed on October 20, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | SUM Air | Troovy 트루비 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 11 days** |
| Monetization | Free | — |
| Size | 24 MB | 46 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SUMAIR Co., Ltd.](https://appshunter.io/developer/1700207324) | [JIHWAN KIM](https://appshunter.io/developer/1885190071) |

## What reviewers say

### SUM Air

[App page](https://appshunter.io/ios/app/sum-air/id6759547908)

Book flights, manage your itinerary, and access mobile boarding passes for a seamless travel experience. Enjoy app-exclusive promotions and real-time updates for domestic travel within Korea.

**Highlights:** Real-time flight booking, Manage bookings and cancellations, Mobile boarding pass, Multiple payment options, App-exclusive promotions, Real-time push notifications

**Features:** Apple Wallet

**In-app purchases:** none


### Troovy 트루비

[App page](https://appshunter.io/ios/app/troovy/id6760588073)

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

**In-app purchases:** none


## Frequently asked questions

### Is SUM Air free?

SUM Air is free to download, with no in-app purchases.

### Is Troovy 트루비 free?

Troovy 트루비 is free to download, with no in-app purchases.

### Do SUM Air or Troovy 트루비 have ads?

Neither SUM Air nor Troovy 트루비 shows ads.

### Which is updated more often, SUM Air or Troovy 트루비?

SUM Air ships an update every 3 weeks, and Troovy 트루비 every 11 days. Most recently, SUM Air was updated on October 20, 2026 and Troovy 트루비 on October 17, 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.*