Star Gems vs STEMadium
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Star Gems
Engage in a fast-paced, strategic puzzle game where you blast aliens by matching colored stars. Avoid letting stars or UFOs reach the top of the screen. Utilize a charged laser gun for emergencies and enjoy playing with your own music.
- Match three or more stars of the same color
- Destroy UFOs by popping stars below them
- Prevent stars and UFOs from reaching the top
- Use a charged laser gun for emergencies
- Play with your own music
- Autosave game progress
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Blast aliens before they get into outer space! Star Gems is no like other star popping games. It is a brain teaser that requires fast reaction and strategic thinking. Easy to play: • Tap three or more stars of the same color to score. • UFOs can be destroyed by popping stars from directly below. • Don't let UFOs and stars reaching the top. Laser gun: • Tap on the laser gun for super power in case of emergency. • Laser gun can be charged up by valid moves. Features: • Play your own music while gaming. • Autosave when the game is interrupted.
STEMadium
Save a baseball stadium by defeating suits in a game. Improve player stats using STEM concepts through engaging baseball activities and a voiced narrative. Explore the stadium, customize your character, and unlock attractions with unique stories and challenges.
- STEM educational concepts in baseball
- Content for 4th-6th graders
- Player and bat customization
- Voiced narrative with character stories
- 8 STEM modules with lessons and challenges
- Stadium exploration and attraction unlocking
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Grandpa gave you his baseball stadium, but now the SUITS are coming to take it away! There's a way to save it though, you just need to defeat the SUITS in a baseball game. Train with Ruby and the rest of your team to raise their stats using Science, Technology, Engineering, and Math to defeat the SUITS in The Big Game while enjoying a fully voiced narrative! Take breaks by exploring the stadium, collecting coins, customizing your character, or unlocking and upgrading one of the 8 stadium attractions! Each attraction has a unique explorable area, 3 challenges to overcome, and a unique story for a teammate. This is your STEMadium! Features: - STEM educational concepts inside of baseball activities - Educational content and learning standards tailored for 4th to 6th grade students - Customize your player character with cool and silly outfits - Customize your own baseball bat - Customize the STEMadium's paint and advertisements - Experience a story with a voiced narrative featuring individual stories and growth from your cousin Ruby, your 8 teammates, and other characters - A total of 8 modules: Basics of Baseball, Reaction Time, Nutrition for Peak Performance, Bat Chooser, Launch Angle, Physiology of Baseball, Seat Pricing & Revenue, and Base Running - Each module has 3 STEM lessons (for a total of 24 lessons), 1 freeplay game, 1 attraction, and an explorable area - Challenge the SUITS in The Big Game after finishing all 24 lessons - The Clubhouse features educational baseball video content from our partner, Science of Sport
Screenshots
Verdict
The clearest difference is rating: STEMadium at 5.0 against Star Gems's 4.2. STEMadium also leads on ads (none vs shown). Star Gems's advantage is in-app purchases (none vs 1) and update cadence (every 4 months vs every 27 months). On price and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. STEMadium sells 1 one-off in-app purchase. Star Gems asks for nothing beyond the download.
STEMadium holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Star Gems has 78 ratings behind it against 1, so its average is the more settled of the two.
Star Gems ships an update every 4 months, STEMadium every 27 months. The most recent releases landed on October 15, 2026 and September 26, 2026 respectively.
| Parameter | Star Gems | STEMadium |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (78 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 86.3% of reviews | — |
| Number of ratings | 78 — better | 1 |
| Update frequency | Every 4 months — better | Every 27 months |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 102 MB | 911 MB |
| Age rating | 4+ | 4+ |
| Developer | Balloon Island Limited | dfusion, Inc |
Customer experience
Star Gems
STEMadium
Bugs and requests
Star Gems
Reported bugs
5 issues- Blocks from previous levels remain on board
- Game freezes or stops completely after updates
- Colors change automatically during gameplay
- Cubes float on top and cannot be eliminated
- Touch screen not responsive on first tap
Requested features
5 requests- Allow continuing from last level
- Add difficulty settings or level selection
- Improve laser gun recharging mechanics
- Fix issue with blocks from previous levels
- Optimize performance and stability
STEMadium
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Star Gems
No in-app purchases
STEMadium
- Unlock Full Game$4.99
Questions
Is Star Gems free?
Is STEMadium free?
Which has better reviews, Star Gems or STEMadium?
Do Star Gems or STEMadium have ads?
Which is updated more often, Star Gems or STEMadium?
Other comparisons
