Comparison

Spermicidor vs Reactor Shift

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

Head to head
About

Spermicidor

Pilot a shrinking ship through unknown territories, destroying enemies and collecting power-ups. This retro-inspired arcade shooter combines casual runner mechanics with high-octane combat.

Highlights
  • Retro shooter gameplay
  • Casual runner mechanics
  • Enemy destruction
  • Power-up collection
  • Touchscreen controls
Features
Read full description

You've done the unthinkable....you forgot to use protection. Only with your shrinking ship can you prevent this mistake. Spermicidor is a spin on the classic retro shooters that have been seen through time at your favorite arcade. A casual runner mixed with the high octane of destroying enemies while cruising through parts unknown. HOW TO PLAY: * Touch the screen to move and shoot enemies * Collect power ups to enhance your ship

About

Reactor Shift

A neon arcade puzzle game where players aim energy orbs to break targets and reactor cores. Utilize strategic bounces, special power-ups, and unlockable orb types to clear challenging levels. It offers simple controls with deep strategic gameplay.

Highlights
  • Physics-based aiming with bounce path preview
  • Break targets and reactor cores
  • Utilize bombs, lasers, and freeze modules
  • Unlock new orb types and cannon styles
  • Collect energy cells and timed gifts
  • Replay levels for strategy improvement
Features
Read full description

FREE TO PLAY! Shoot, Shoot, Shoot! Reactor Shift is a fast, satisfying reactor-battle game where every shot can trigger a massive chain reaction. Aim your energy volley, break through charged blocks, and watch the arena erupt as balls ricochet through targets, power nodes, and explosive cores. Build longer combos, earn tactical rewards, and use your upgrades at the perfect moment to keep the reaction alive. Features: • Fire multi-ball volleys and create huge chain reactions • Face Leviathan boss encounters every 5 levels • Target boss cores while they move, deploy shields, and call in reinforcements • Unlock powerful tools including Orb, Freeze, Laser, Bomb, Reset, Aim, and Rebound • Activate Rebound Bands to send falling balls back into the arena for extended combos • Earn score multipliers and extra tactical rewards for high-impact volleys • Revive after a loss to gain extra shots and push the reactor field back • Progress from quick early stages to demanding late-game reactor battles • Enjoy neon sci-fi visuals, impact effects, particle bursts, and reactive sound Every level is a new puzzle. Find the angle, choose the right power, and turn one precise shot into a reactor-breaking cascade. Can you survive the shift?

Screenshots

Spermicidor4 screens
Reactor Shift4 screens

Verdict

The call

The clearest difference is iOS requirement: Spermicidor at 11.0 against Reactor Shift's 17.0. On price, rating, review sentiment and ratings volume 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Spermicidor against 5.0 for Reactor Shift. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Spermicidor ships an update every 2 weeks, Reactor Shift fortnightly. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.

Scorecard1 real difference · 9 level
Spermicidor versus Reactor Shift: the parameters behind the verdict, then further details
ParameterSpermicidorReactor Shift
PriceFreeFree
Rating5.0 (1 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings12 — better
Update frequencyEvery 2 weeksFortnightly — better
AdsYesYes
In-app purchasesNoNo
MonetizationAd-supportedAd-supported
DevicesiPhone, iPodiPhone, iPad
Requires iOS11.0 — better17.0
Further details — not scored
Size471 MB249 MB
Age rating17+4+
DeveloperCasey AudeloAriadna Campos

Customer experience

Spermicidor

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Reactor Shift

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Spermicidor

No in-app purchases

None

Reactor Shift

No in-app purchases

Questions

Is Spermicidor free?
Spermicidor is free to download, with no in-app purchases.
Is Reactor Shift free?
Reactor Shift is free to download, with no in-app purchases.
Which has better reviews, Spermicidor or Reactor Shift?
Spermicidor and Reactor Shift are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.
Do Spermicidor or Reactor Shift have ads?
Both Spermicidor and Reactor Shift show ads.
Which is updated more often, Spermicidor or Reactor Shift?
Spermicidor ships an update every 2 weeks, and Reactor Shift fortnightly. Most recently, Spermicidor was updated on October 24, 2026 and Reactor Shift on October 12, 2026.

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