# Stack Diamond Gem 3D vs Fly Challenge

The clearest difference is rating: Fly Challenge at 4.2 against Stack Diamond Gem 3D's 1.0. Fly Challenge also leads on review sentiment (27% vs 0%) and ratings volume (1.3K vs 1). Stack Diamond Gem 3D's advantage is in-app purchases (none vs 20) and iOS requirement (11.0 vs 13.0). On price, ads and device support there is nothing between them.

Both are free to download. Fly Challenge sells 20 one-off in-app purchases. Stack Diamond Gem 3D asks for nothing beyond the download.

Fly Challenge holds the better App Store score, 4.2 against 1.0. That said, the two scores are not equally well evidenced: Fly Challenge has 1.3K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Stack Diamond Gem 3D's written reviews are positive against 27% of Fly Challenge's.

## The numbers

| Metric | Stack Diamond Gem 3D | Fly Challenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/stack-diamond-gem-3d/id6446627202/reviews) | **[4.2 (1.3K ratings)](https://appshunter.io/ios/app/fly-challenge-plane-simulator/id6503700864/reviews)** |
| Number of ratings | 1 | **1.3K** |
| Positive reviews | 0.0% of reviews | **26.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | — | Every 5 months |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 222 MB | 400 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Atif Rana](https://appshunter.io/developer/1637064118) | [Freeplay LLC](https://appshunter.io/developer/1232320673) |

## What reviewers say

### Stack Diamond Gem 3D

[App page](https://appshunter.io/ios/app/stack-diamond-gem-3d/id6446627202)

Craft beautiful jewelry like rings and necklaces by stacking gems. Test your precision and quick thinking in this addictive game with increasing challenges.

**Highlights:** Jewelry making simulation, Stacking gems, Precision aiming gameplay, Increasing difficulty levels, Ruby rings, diamond rings, crystal necklaces, Addictive gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Diamond Gem 3D free?

Stack Diamond Gem 3D is free to download, with no in-app purchases.

### Is Fly Challenge free?

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

### Which has better reviews, Stack Diamond Gem 3D or Fly Challenge?

Fly Challenge is rated higher. Stack Diamond Gem 3D averages 1.0 out of 5 from 1 ratings, while Fly Challenge averages 4.2 from 1.3K ratings.

### Do Stack Diamond Gem 3D or Fly Challenge have ads?

Both Stack Diamond Gem 3D and Fly Challenge show ads.

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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.*