USB Run! vs Gem Stack
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
USB Run!
Stack your USB drive as high as possible by collecting data like games, documents, and photos. Manage your storage carefully, or upload to the cloud. Aim for the jackpot in the clouds for a fun and thrilling experience.
- Intuitive swipe controls
- Satisfying stack mechanic
- Data collection (Games, Docs, Music, Photos)
- Cloud upload feature
- Jackpot discovery
- Popping sounds
- Haptic feedback
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Collect GB and stack your USB super high up in the sky! Choose between Games, Documents, Music, Fotos... and download it, but be careful! Are you sure you can handle the data?!? Watch out to not run out of storage. But if you do, keep your eyes open, maybe you can upload your data to the cloud? If you're high enough try to make it up in the clouds and find the jackpot!? Looking for some fun and thrill? Then this game is the made for you! Features: - Super intuitive swipe controls - Satisfying stack mechanic - Popping sounds - Nice haptic
Gem Stack
Collect and stack precious gems while navigating a treacherous obstacle course. Dodge traps, merge valuable gems, and protect your growing pile to reach the finish line and claim your rewards. Experience satisfying gem-collecting gameplay with bright visuals and addictive progression.
- Satisfying gem runner gameplay
- Obstacle dodging action
- Gem merging mechanics
- Bright and glittering visuals
- Addictive progression system
- Collect and stack gems
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Can you stack your way to treasure without losing a single gem? Let’s find out in Gem Stack! Enter the dazzling world of Gem Stack, the ultimate hyper-casual runner where your goal is to collect, stack, and protect precious gems while racing through a road full of obstacles and traps. Every swipe counts as you guide your growing pile of sparkling crystals toward the finish line! Slide, dodge, and merge your way through dangerous tracks. Stack your gems higher and shine brighter with every flawless run. But beware — one wrong move and your gems could shatter! How to Play Swipe left or right to move along the track. Collect colorful gems and build your stack. Avoid sharp traps and smashable obstacles. Merge rare gems to boost your score. Reach the end with your stack intact and claim your rewards! Key Features Satisfying Gem Runner Gameplay: Run, collect, and stack beautiful gems in this polished arcade experience. Obstacle Dodging Action: Avoid deadly traps, holes, and barriers. Merge Mechanics: Combine gems for higher value and more sparkle. Bright Visuals: Vivid, glittering graphics with fluid animations. Addictive Progression: Level up your runs and discover rare gem types. Why Play Gem Stack? If you love runner games with shiny rewards and satisfying stacking action, Gem Stack delivers a fast-paced and visually stunning experience. Each run is a new challenge full of glitter and glory! Download Gem Stack now and start stacking your way to gem-filled greatness!
Screenshots
Verdict
The clearest difference is rating: Gem Stack at 4.6 against USB Run!'s 3.8. Gem Stack also leads on ratings volume (36K vs 10). USB Run!'s advantage is in-app purchases (none vs 1) and review sentiment (50% vs 35%). On price, update cadence, ads 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. Gem Stack sells 1 one-off in-app purchase. USB Run! asks for nothing beyond the download.
Gem Stack holds the better App Store score, 4.6 against 3.8. That said, the two scores are not equally well evidenced: Gem Stack has 36K ratings behind it against 10, so its average is the more settled of the two. Written reviews complicate that: 50% of USB Run!'s written reviews are positive against 35% of Gem Stack's, so the app with the better star average is not the one people write more warmly about.
Both ship on a similar rhythm, roughly weekly. The most recent releases landed on September 13, 2026 and October 2, 2026 respectively.
| Parameter | USB Run! | Gem Stack |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (10 ratings) | 4.6 (36K ratings) — better |
| Positive reviews | 50.0% of reviews — better | 34.9% of reviews |
| Number of ratings | 10 | 36K — better |
| Update frequency | Weekly | Weekly |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 111 MB | 389 MB |
| Age rating | 4+ | 12+ |
| Developer | Rike Games | Rollic Games |
Customer experience
USB Run!
Gem Stack
Bugs and requests
USB Run!
Not enough reviews yet to summarise bugs or requests.
Gem Stack
Reported bugs
3 issues- Game crashes after certain levels
- Purchases not properly registered
- Inconsistent end-of-level experience
Requested features
4 requests- More level variety and difficulty progression
- Ability to customize gem types and jewelry
- Better in-game currency system
- Improved customer support
In-app purchases
USB Run!
No in-app purchases
Gem Stack
- Remove Ads$7.99
