Size Up is a casual arcade runner for mobile devices where players scale character size by collecting color-matched units.
Product velocity
Dormant
Daily rank 🇺🇸
—
Games
Sentiment
4.0
588 reviews
Nemesis
Giant Rush!
The App DNA
What makes this app unique?
Users hire this game for low-stakes, short-session entertainment that provides immediate feedback through size-scaling and boss-battle mechanics.
For Casual mobile gamers seeking short-session, arcade-style runner experiences.
What does it look like?
Key features
Character size increases by collecting units of the same color while avoiding opposing color groups
Final level encounters requiring power punches to defeat enemies and capture the fortress
Horizontal slide mechanics for navigating obstacles and collecting units
Unlockable or selectable character animations triggered upon winning a battle
How much does it cost?
Ad-supported model with no IAP or paid tiers, monetizing entirely through volume-based ad impressions.
Velocity
Dormant developmentopaqueShow more...
The development momentum is classified as zombie due to the lack of updates for over a year. The last recorded release occurred on October 3, 2025, and there has been no activity since. Given the current date of May 2026, the app has exceeded the 12-month threshold for inactivity. There is no evidence of ongoing maintenance or live operations.
Who built it?
TapNation
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Guess Their Answer
Light Bike Flying Stunts
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Web Master 3d!User Sentiment
What do users think recently?
The recent review mood reads excited. Users appreciate the core gameplay loop provides an engaging and entertaining experience for casual mobile users and simple and accessible mechanics make the game suitable for children and casual players.
How are ratings & reviews evolving?
What users say, by theme
- The core gameplay loop provides an engaging and entertaining experience for casual mobile users
- Simple and accessible mechanics make the game suitable for children and casual players
- Aggressive monetization tactics create friction for players attempting to acquire in-game items
26 of 26 recent reviews analyzed · moderate confidence · Excited overall
Read the full review analysisUnlock 2 more frustration themes, each backed by review evidence.
Access the full report for freeCompetition
Competitive landscape for Size Up - Epic Run Race 3D
How's the Games market?
The game maintains a 4.04 rating on Android, but the lack of recent feature updates relative to Giant Rush! suggests a shift toward maintenance-mode that risks long-term chart relevance.
Read the market outlookThe rivals identified
By Rollic Games
The definitive market leader for the color-matching size-up mechanic that Size Up directly emulates.
- Significantly larger active player base and brand recognition
- More polished meta-progression and character customization options
- Higher frequency of content updates and seasonal events
Unlock the deeper market read.
Access the full report for freeThe Analyst's Read
Key takeaways for Size Up - Epic Run Race 3D
Where is it heading?
The casual runner market is consolidating around titles with frequent live-ops and meta-progression, leaving Size Up exposed to competitors that offer deeper long-term engagement. Without a shift from maintenance-mode to active content updates, the current user base will likely migrate to rivals that provide more frequent seasonal rewards.
- Hardware-specific launch failures on Android prevent access for a segment of the user base, leading to negative rating pressure.
- Recent updates focus on stability rather than feature expansion, signaling a maintenance-mode posture that risks losing ground to content-heavy competitors.
The SWOT
- Color-matching size-scaling loop drives high-frequency ad impressions
- Low-friction swipe controls maximize new-user acquisition
- Implement meta-progression to increase LTV
- Expand boss battle variety to improve retention
Next best moves
Audit Android launch failures because performance complaints are the top technical detractor → stabilize install velocity
+ 1 more prioritized moveThe counter-intuitive read
The game's maintenance-mode status is a strategic vulnerability…
Read the full takeFeature gaps
Seasonal events (available in Giant Rush! but missing here) +1
Since the last report: The app has entered a clear maintenance-mode phase, with sentiment analysis now highlighting monetization friction and hardware-specific technical failures as primary churn drivers.
Bottom line
Size Up holds its casual base through accessible mechanics, but the lack of content updates leaves it exposed to content-heavy rivals, so the PM should prioritize technical stability and monetization balancing to defend the current user base.
Unlock 2 critical frictions, 2 market threats, 1 more prioritized move and the analyst’s take.
Access the full report for freeFAQ
Is Size Up suitable for younger children?
Does Size Up work on older Android devices?
How does Size Up compare to Giant Rush!?
Report last updated