Comparison

Nova Sling vs Erwin

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Nova Sling

Features
Read full description

Nova Sling is an original score-based casual game designed for short play sessions and long-term replayability. Players control a central launcher and sling energy objects toward dynamic targets. Accurate timing, precise aiming, and strategic decision-making are essential to maintain momentum and earn points. As each session progresses, the game gradually increases difficulty by introducing faster target movement, more complex patterns, and narrower reaction windows. Successfully chaining actions builds combo multipliers that significantly boost the final score and reward consistent skillful play. Each session is fully self-contained. Players may pause, resume, restart, or exit the game at any time. When a failure condition is met, the session ends and transitions to a settlement screen displaying detailed performance statistics. From the settlement screen, players can immediately start a new session with all gameplay data fully reset, or return to the main menu. Key features include: ·Score-based casual gameplay focused on precision and timing ·Dynamic difficulty progression within each session ·Combo multiplier system with visual and animated feedback ·Pause, restart, and exit functionality ·Detailed game settlement screen with performance statistics ·Local leaderboard tracking best scores ·Achievement system with collectible badges ·Distinctive UI design with smooth animations ·“How to Play” guide accessible from the home screen ·Fully playable offline on iPhone and iPad

About

Erwin

Experience a unique 3D sliding puzzle on a cube's six faces. Merge tiles, rotate the cube, and discover quantum effects like superposition and entanglement. Play with friends in multiplayer mode.

Highlights
  • 3D cube sliding puzzle
  • Tile merging and scoring
  • Quantum effects (superposition, entanglement)
  • Cube rotation for multiple faces
  • Local multiplayer via Game Center
  • Universal app purchase
Features
Read full description

Erwin is a sliding puzzle played on the six faces of a cube, a unique 3D experience with spatial audio and holographic depth effects. Swipe to slide and merge tiles, or swipe the background to rotate the cube and work the other sides. Tiles have a value that doubles when they merge, and each merge adds to your score. Play long enough and quantum effects begin to appear: some tiles are in superposition, alternating between two values, some entangled and move together, and some even teleport. Play together with friends via Game Center Multiplayer: take turns on a shared cube, watch each other's moves in real time, and climb the cooperative leaderboard. Universal purchase with Family sharing: pay once, and play Erwin on iPhone, iPad, and Mac, with up to six family members. Erwin respects your privacy and your wallet. This is an app I wanted for myself without compromise or dark patterns: pay once and it's yours, on all your devices, with no ads, no nagging in-app purchases, no tracking, no profiling.

Screenshots

Nova Sling4 screens
Erwin4 screens

Verdict

The call

The clearest difference is price: Nova Sling at Free against Erwin's $4.99. Nova Sling also leads on iOS requirement (16 vs 26.0). Erwin's advantage is update cadence (every 8 days vs every 3 months). On ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Nova Sling is free to download; Erwin costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Nova Sling ships an update every 3 months, Erwin every 8 days. The most recent releases landed on October 6, 2026 and October 20, 2026 respectively.

Scorecard3 real differences · 5 level
Nova Sling versus Erwin: the parameters behind the verdict, then further details
ParameterNova SlingErwin
PriceFree — better$4.99
Positive reviews—0.0% of reviews
Update frequencyEvery 3 monthsEvery 8 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS16 — better26.0
Further details — not scored
Size7 MB43 MB
Age rating4+4+
Developer登鹏 蒋Tamas Bartal

In-app purchases

None

Nova Sling

No in-app purchases

None

Erwin

No in-app purchases

Questions

Is Nova Sling free?
Nova Sling is free to download, with no in-app purchases.
Is Erwin free?
Erwin costs $4.99, with no in-app purchases.
Do Nova Sling or Erwin have ads?
Neither Nova Sling nor Erwin shows ads.
Which is updated more often, Nova Sling or Erwin?
Nova Sling ships an update every 3 months, and Erwin every 8 days. Most recently, Nova Sling was updated on October 6, 2026 and Erwin on October 20, 2026.

Other comparisons