# Stack Islands vs Fly Challenge

The clearest difference is review sentiment: Stack Islands at 80% against Fly Challenge's 27%. Stack Islands also leads on ads (none vs shown) and update cadence (every 2 months vs every 5 months). Fly Challenge's advantage is rating (4.2 vs 2.5) and ratings volume (1.3K vs 2). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Stack Islands sells 1 one-off in-app purchase and Fly Challenge sells 20 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Fly Challenge holds the better App Store score, 4.2 against 2.5. That said, the two scores are not equally well evidenced: Fly Challenge has 1.3K ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 80% of Stack Islands's written reviews are positive against 27% of Fly Challenge's, so the app with the better star average is not the one people write more warmly about.

Stack Islands ships an update every 2 months, Fly Challenge every 5 months. The most recent releases landed on October 5, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Stack Islands | Fly Challenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.5 (2 ratings)](https://appshunter.io/ios/app/stack-islands/id1407146596/reviews) | **[4.2 (1.3K ratings)](https://appshunter.io/ios/app/fly-challenge-plane-simulator/id6503700864/reviews)** |
| Number of ratings | 2 | **1.3K** |
| Positive reviews | **80.0% of reviews** | 26.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 145 MB | 400 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Dean Longmore](https://appshunter.io/developer/984963696) | [Freeplay LLC](https://appshunter.io/developer/1232320673) |

## What reviewers say

### Stack Islands

[App page](https://appshunter.io/ios/app/stack-islands/id1407146596)

Build towering structures by stacking blocks to create unique islands. Enjoy a relaxing experience with charming visuals and challenge yourself with fun activities. Discover a hidden mystery while competing for the top global score.

**Highlights:** Stack blocks to create islands, Relaxing and charming design, Compete for global high scores, Engage in fun activities, Discover a hidden mystery, No personal data tracking

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Complete Game Unlock | $0.99 | one-time |


### Fly Challenge

[App page](https://appshunter.io/ios/app/fly-challenge-plane-simulator/id6503700864)

Build and race custom airplanes in this high-flying simulator. Master speed, customize parts, and perform extreme landings to become the top pilot. Experience thrilling aerial races and progress to advanced aircraft.

**Highlights:** Build and customize airplanes, Compete in high-speed races, Master extreme landings, Merge plane parts for speed, Earn money and expand fleet, Realistic flight simulation

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

**In-app purchases (20)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Massive Earning | $0.99 | one-time |
| Big Milestone | $0.99 | one-time |
| 10 Ticket | $1.99 | one-time |
| Coin Rain | $2.99 | one-time |
| Small Coin Pack | $2.99 | one-time |
| No Ads | $2.99 | one-time |
| Gem Rain | $3.99 | one-time |
| No-Ads one time offer | $3.99 | one-time |
| Small Gems Pack | $3.99 | one-time |
| Starter Pack | $3.99 | one-time |
| Skip it! | $4.99 | one-time |
| 30 Ticket | $4.99 | one-time |
| Medium coin pack | $5.99 | one-time |
| Medium Gem Pack | $6.99 | one-time |
| Richie Pilot | $9.99 | one-time |
| Large Coin Pack | $9.99 | one-time |
| 100 Ticket | $9.99 | one-time |
| Legendary Pack | $14.99 | one-time |
| Large Gem Pack | $14.99 | one-time |
| Special Pilot | $19.99 | one-time |

**What reviewers like**

- 👍 Fun and relaxing game
- 💡 Great for travel
- 🚀 Easy to dominate

**What reviewers complain about**

- 🐛 Impossible volcano/lava level
- 🐛 Glitches and crashes
- 🔋 Too many ads

**Reported bugs**

- Invisible ceiling on volcano/lava level
- Plane gets stuck and can't progress
- Game progress gets lost or reset

**Requested features**

- More levels and content
- Fix the impossible volcano/lava level
- Reduce the number of ads


## Frequently asked questions

### Is Stack Islands free?

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

### Is Fly Challenge free?

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

### Which has better reviews, Stack Islands or Fly Challenge?

Fly Challenge is rated higher. Stack Islands averages 2.5 out of 5 from 2 ratings, while Fly Challenge averages 4.2 from 1.3K ratings.

### Do Stack Islands or Fly Challenge have ads?

Fly Challenge shows ads; Stack Islands does not.

### Which is updated more often, Stack Islands or Fly Challenge?

Stack Islands ships an update every 2 months, and Fly Challenge every 5 months. Most recently, Stack Islands was updated on October 5, 2026 and Fly Challenge on October 13, 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.*