Comparison

Outhold vs Quantum Defender

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

Head to head
About

Outhold

A strategic incremental game combining tower defense with deep meta-progression. Experiment with various builds and discover powerful synergies to defend the last fires. Enjoy an addictive game loop with a deep upgrade tree where experimentation is rewarded.

Highlights
  • Incremental tower defense gameplay
  • Deep meta-progression
  • Build variety and synergies
  • Addictive game loop
  • Deep upgrade tree
  • Free upgrade refunds
Features
Read full description

[Incremental Tower Defense with Build Variety] Outhold is a short, strategic incremental game that blends tower defense with a deep meta-progression. Experiment with builds and find overpowered synergies to defend the dwindling fires of Outhold. [Addictive Game Loop] Start a run, see how far you get. Use your collected resources to buy upgrades and try again. Become powerful enough to obliterate everything coming against you. [Deep Upgrade Tree] Create unique builds that fit your playstyle. Experimentation is rewarded, and all upgrades can be refunded for free. [Strategize] Focus on upgrading just one specific tower, or find unique tower synergies. There are many ways to progress through Outhold, the choice is up to you.

About

Quantum Defender

Defend a quantum core by controlling and aligning a wavefunction against waves of incoming enemies. This arcade action game transforms abstract quantum concepts into fast-paced, visual gameplay with simple touch controls and escalating challenges.

Highlights
  • Fast arcade defense gameplay
  • Wavefunction alignment mechanics
  • Quantum-inspired enemies and effects
  • Increasing enemy pressure
  • Designed for touch controls
  • Sci-fi wave-based game world
Features
Read full description

Quantum Defender is an arcade action game where you defend a quantum core by controlling and aligning a wavefunction against incoming enemies. Rotate, time, and lock your quantum state into the right orientation to stop threats before they reach the center. Each encounter turns abstract quantum ideas into fast visual gameplay: alignment, phase, resonance, shields, targets, and energy bursts become part of the action. Built for quick play sessions, Quantum Defender combines simple touch controls with escalating enemy pressure and bright sci-fi visuals. Features: • Fast arcade defense gameplay • Wavefunction alignment and target-lock mechanics • Quantum-inspired enemies, shields, and energy effects • Increasing pressure as enemies close in • Designed for touch controls on iPhone and iPad • A science-inspired game world built around waves, phase, and resonance Quantum Defender is a game, not a physics textbook. It uses quantum-inspired visuals and mechanics to make wave alignment feel active, playful, and exciting.

Screenshots

Outhold4 screens
Quantum Defender4 screens

Verdict

The call

The clearest difference is price: Quantum Defender at Free against Outhold's $3.99. Outhold's advantage is in-app purchases (none vs 7) and ratings volume (212 vs 1). On rating, ads, device support and iOS requirement 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

Quantum Defender is free to download; Outhold costs $3.99 up front. Quantum Defender sells 7 one-off in-app purchases. Outhold asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Outhold against 5.0 for Quantum Defender. That said, the two scores are not equally well evidenced: Outhold has 212 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Outhold ships an update every 2 days, Quantum Defender every 6 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard6 real differences · 5 level
Outhold versus Quantum Defender: the parameters behind the verdict, then further details
ParameterOutholdQuantum Defender
Price$3.99Free — better
Rating4.9 (212 ratings)5.0 (1 ratings) — better
Positive reviews70.0% of reviews—
Number of ratings212 — better1
Update frequencyEvery 2 days — betterEvery 6 days
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
Best chart rank#79 — better—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS14.0 — better15.0
Further details — not scored
Size115 MB124 MB
Age rating4+4+
DeveloperMinMax Software ABRQM Technologies LLC

Customer experience

Outhold

All ratings181 ratings
Positive97.2%
Neutral2.2%
Negative0.6%
Written reviews40 reviews
Positive70.0%
Neutral25.0%
Negative5.0%

Quantum Defender

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Outhold

No in-app purchases

7 purchases

Quantum Defender

One-time7
  • Cadet Qubit Pack$1.99
  • Field Qubit Pack$5.99
  • Command Qubit Pack$11.99
Show 4 more
  • Singularity Qubit Pack$25.99
  • Architect Qubit Pack$49.99
  • Navigator Qubit Pack$99.99
  • Horizon Qubit Pack$199.99

Questions

Is Outhold free?
Outhold costs $3.99, with no in-app purchases.
Is Quantum Defender free?
Quantum Defender is free to download, with in-app purchases available.
Which has better reviews, Outhold or Quantum Defender?
Quantum Defender is rated higher. Outhold averages 4.9 out of 5 from 212 ratings, while Quantum Defender averages 5.0 from 1 ratings.
Do Outhold or Quantum Defender have ads?
Neither Outhold nor Quantum Defender shows ads.
Which is updated more often, Outhold or Quantum Defender?
Outhold ships an update every 2 days, and Quantum Defender every 6 days. Most recently, Outhold was updated on November 5, 2026 and Quantum Defender on October 31, 2026.

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