Comparison

911 Operator vs Nuclear inc 2. Atom simulator

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

Head to head
About

911 Operator

Respond to emergency calls as a dispatcher, providing aid and coordinating police, fire, and medical units. Navigate diverse scenarios and manage resources to save lives in cities worldwide.

Highlights
  • Respond to emergency calls
  • Dispatch police, fire, and paramedics
  • Provide first aid instructions
  • Play on real-world city maps
  • Manage emergency units and vehicles
  • Experience over 50 recorded dialogues
Features
Read full description

In 911 OPERATOR, you take on the role of an emergency dispatcher, who has to rapidly deal with the incoming reports. Your task is not just to pick up the calls, but also to react appropriately to the situation – sometimes giving first aid instructions is enough, at other times a police, fire department or paramedics’ intervention is a necessity. Keep in mind, that the person on the other side of the line might turn out to be a dying daughter’s father, an unpredictable terrorist, or just a prankster. Can you handle all of this? PLAY ON ANY CITY IN THE WORLD* Check out thousands of cities from all around the world. The Free Play mode lets you choose a city to play on - the game will download its map, along with real streets, addresses and the emergency infrastructure. You can also try the Career mode, which contains 6 cities with unique events – survive an earthquake in San Francisco and save Washington, D.C. from bomb attacks. MANAGE TEAMS A number of police, fire department and paramedic units are at your disposal. The forces may use a variety of vehicles (from common ambulances to police helicopters), essential equipment (e.g., bulletproof vests, first aid kits and technical tools) and consist of team members with different abilities. PEOPLE’S LIVES ARE IN YOUR HANDS! Main features: - Over 50 recorded dialogues inspired by real calls: serious and dramatic, but sometimes also funny or annoying. - Real First Aid instructions. - Opportunity to play on any city in the world! - 6 selected cities in Career mode, featuring unique calls and events. - More than 140 types of reports to encounter. - 12 types of emergency vehicles (including helicopters, police cars and motorcycles). *** (!) The game requires Internet connection to download free maps. The offline game is available after downloading the maps. (!) The game does check the user's location once to propose a city for download. User's location is anonymous and not stored. All map data © OpenStreetMap authors * The term “city” is used within the meaning of OpenStreetMap service and relates to urban areas described as “city” or “town” therein.

About

Nuclear inc 2. Atom simulator

Simulate and control a nuclear power plant, managing complex systems to prevent disasters. Navigate through challenging levels, including historical events, and utilize improvements to optimize reactor operations. Experience a realistic and engaging simulation with a focus on risk and critical decision-making.

Highlights
  • Realistic nuclear reactor control system
  • Detailed training mode
  • Fukushima and Chernobyl locations
  • Unique gameplay mechanics
  • Emergency incident simulations
  • Multiple language support
Features
Read full description

It is common knowledge, that nuclear power plants are considered to be the most controversial source of energy, since nuclear reactors are very dangerous. Would you be able to control the atomic energy of the reactor? The main location of our simulator is a huge remote room where players can find hundreds of devices, screens and indicators. You, as the bravest superhero, will have to take on the role of the Chernobyl nuclear power plant operator and control all the processes in order to put the station into a safe operation mode. • This hardcore game consists of 12 levels. • Each level becomes available after completing the previous objectives. • At first, you will go through the training and learn how to manage a nuclear power plant. • You will have access to various improvements and bonuses that will help to optimize the control process of our nuclear reactor. We are 100% sure that you want some risk in your life, and therefore created the last two hardcore levels - Fukushima and Chernobyl. They are extremely difficult, but if you take a dosimeter with you and measure the external radiation background, then you may avoid the explosion of our power reactor! Only you can change the outcome of 1986 and save our planet from a technological disaster! Due to various special effects and unique gameplay, the game keeps you energized and brings a flurry of emotions from passing each level! Attention! Check the pressure and temperature in our nuclear reactor, and do not forget about the gas turbine. Carelessness may lead to a nuclear disaster! Game Features: - Contains detailed training; - Realistic nuclear reactor control system; - Fukushima and Chernobyl locations; - Unique gameplay; - Four different languages; - The presence of various emergency incidents, for example, earthquakes, fires and other disasters.

Screenshots

911 Operator4 screens
Nuclear inc 2. Atom simulator4 screens

Verdict

The call

The clearest difference is rating: 911 Operator at 4.5 against Nuclear inc 2. Atom simulator's 3.8. 911 Operator also leads on update cadence (every 11 days vs every 26 months) and ratings volume (1.6K vs 158). Nuclear inc 2. Atom simulator's advantage is in-app purchases (none vs 4) and price ($0.99 vs $4.99). On 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

CostPrice · In-app purchases · Ads · Monetization

911 Operator costs $4.99 and Nuclear inc 2. Atom simulator $0.99 up front. 911 Operator sells 4 one-off in-app purchases. Nuclear inc 2. Atom simulator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

911 Operator holds the better App Store score, 4.5 against 3.8. That said, the two scores are not equally well evidenced: 911 Operator has 1.6K ratings behind it against 158, so its average is the more settled of the two. Written reviews complicate that: 55% of 911 Operator's written reviews are positive against 67% of Nuclear inc 2. Atom simulator's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

911 Operator ships an update every 11 days, Nuclear inc 2. Atom simulator every 26 months. The most recent releases landed on October 16, 2026 and October 17, 2026 respectively.

Scorecard8 real differences · 2 level
911 Operator versus Nuclear inc 2. Atom simulator: the parameters behind the verdict, then further details
Parameter911 OperatorNuclear inc 2. Atom simulator
Price$4.99$0.99 — better
Rating4.5 (1.6K ratings) — better3.8 (158 ratings)
Positive reviews55.2% of reviews67.0% of reviews — better
Number of ratings1.6K — better158
Update frequencyEvery 11 days — betterEvery 26 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.09.0 — better
Further details — not scored
Size269 MB88 MB
Age rating12+9+
DeveloperGames Operators S.A.Dmitry Lomakin

Customer experience

911 Operator

All ratings1,570 ratings
Positive86.6%
Neutral5.6%
Negative7.8%
Written reviews368 reviews
Positive55.2%
Neutral17.1%
Negative27.7%

Nuclear inc 2. Atom simulator

All ratings158 ratings
Positive69.0%
Neutral7.6%
Negative23.4%
Written reviews282 reviews
Positive67.0%
Neutral8.9%
Negative24.1%

User reviews

911 Operator

From 1.6K App Store ratings

What we love

  • 🚀 Realistic and engaging gameplay
  • 👍 Ability to play in own city
  • 👍 Detailed 911 calls
  • 👍 Challenging and addictive

Room to improve

  • 🐛 Crashes and bugs
  • 🔧 Difficult to control units
  • 🔧 Repetitive call scenarios
  • 🔧 Unoptimized for newer iPhone screens

Nuclear inc 2. Atom simulator

From 158 App Store ratings

What we love

  • 💡 Unique nuclear reactor simulation concept
  • 🎮 Engaging and challenging gameplay mechanics
  • 💰 Affordable price point (under $1-2)
  • 📚 Educational value about nuclear power plants
  • 🎨 Minimalist and clean visual design

Room to improve

  • ⏱️ Severe difficulty spike at later levels
  • 🎲 Excessive randomness in disaster events
  • ⏰ Unrealistic time pressure and constraints
  • 💸 Insufficient starting money on higher levels
  • 🌍 Poor translation quality in multiple languages

Bugs and requests

911 Operator

Reported bugs

4 issues
  • Inability to delete teams
  • Stuck on earthquake level after completion
  • DLC purchases not working properly
  • Frequent crashes and freezes

Requested features

5 requests
  • Sandbox mode with unlimited money
  • More unique emergency scenarios
  • Ability to customize dispatcher voice
  • Support for additional emergency services (SWAT, military, etc.)
  • Improved map navigation and unit management

Nuclear inc 2. Atom simulator

Reported bugs

9 issues
  • Level 2 core cooling stuck/unresponsive
  • Fuel rod recharge not working properly on level 5
  • Negative temperature exploit causing reactor malfunction
  • Upgrades not functioning correctly
  • Mobile touch controls not registering interactions
Show 4 more
  • Tutorial only accessible after destroying reactor in level 1
  • Inconsistent disaster frequency and timing
  • Game progression locked behind level completion
  • Excessive battery drain during gameplay

Requested features

15 requests
  • Sandbox/free play mode accessible earlier or unlocked after fewer levels
  • Additional levels and missions
  • More reactor types and customization options
  • Fusion reactor option
  • Submarine game mode (promised but never delivered)
Show 10 more
  • Multiplayer or competitive modes
  • Highscore tracking system
  • Different difficulty settings
  • Level skip option
  • More upgrade categories and items
  • Better tutorial and in-game explanations
  • Language localization (Korean, Japanese, Turkish, Italian, etc.)
  • Improved UI layout for iPad
  • Nuclear waste management mechanics
  • Facility building and expansion features

In-app purchases

4 purchases

911 Operator

One-time4
  • First Response$0.99
  • Special Resources$2.99
  • Every Life Matters$3.99
Show 1 more
  • Search And Rescue DLC$4.99
None

Nuclear inc 2. Atom simulator

No in-app purchases

Questions

Is 911 Operator free?
911 Operator costs $4.99, and also offers in-app purchases.
Is Nuclear inc 2. Atom simulator free?
Nuclear inc 2. Atom simulator costs $0.99, with no in-app purchases.
Which has better reviews, 911 Operator or Nuclear inc 2. Atom simulator?
911 Operator is rated higher. 911 Operator averages 4.5 out of 5 from 1.6K ratings, while Nuclear inc 2. Atom simulator averages 3.8 from 158 ratings.
Do 911 Operator or Nuclear inc 2. Atom simulator have ads?
Neither 911 Operator nor Nuclear inc 2. Atom simulator shows ads.
Which is updated more often, 911 Operator or Nuclear inc 2. Atom simulator?
911 Operator ships an update every 11 days, and Nuclear inc 2. Atom simulator every 26 months. Most recently, 911 Operator was updated on October 16, 2026 and Nuclear inc 2. Atom simulator on October 17, 2026.

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