# Nuclear inc 2. Atom simulator vs Hello Tower

The clearest difference is rating: Hello Tower at 4.4 against Nuclear inc 2. Atom simulator's 3.8. Hello Tower also leads on update cadence (every 9 days vs every 26 months). Nuclear inc 2. Atom simulator's advantage is in-app purchases (none vs 5) and chart position (#148 vs unranked). On review sentiment, ratings volume, ads and device support there is nothing between them.

Nuclear inc 2. Atom simulator costs $0.99 and Hello Tower $2.99 up front. Hello Tower sells 4 one-off in-app purchases. Nuclear inc 2. Atom simulator asks for nothing beyond the download.

Hello Tower holds the better App Store score, 4.4 against 3.8. Both are backed by a comparable volume of ratings — 158 and 66 respectively. Written reviews point the same way: 67% of Nuclear inc 2. Atom simulator's written reviews are positive against 71% of Hello Tower's.

Nuclear inc 2. Atom simulator ships an update every 26 months, Hello Tower every 9 days. The most recent releases landed on November 11, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Nuclear inc 2. Atom simulator | Hello Tower |
| --- | --- | --- |
| Price | **$0.99** | $2.99 |
| Rating | [3.8 (158 ratings)](https://appshunter.io/ios/app/nuclear-inc-2-atom-simulator/id1369699810/reviews) | **[4.4 (66 ratings)](https://appshunter.io/ios/app/hello-tower/id1572719445/reviews)** |
| Number of ratings | **158** | 66 |
| Positive reviews | 67.0% of reviews | **70.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 26 months | **Every 9 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#148** | — |
| Size | 88 MB | 412 MB |
| Requires iOS | **9.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [Dmitry Lomakin](https://appshunter.io/developer/1369699809) | [Sascha Trachsel](https://appshunter.io/developer/1572719447) |

## What reviewers say

### Nuclear inc 2. Atom simulator

[App page](https://appshunter.io/ios/app/nuclear-inc-2-atom-simulator/id1369699810)

**Currently charting:** #148 Top Paid · Strategy, #185 Top Paid · Simulation (US App Store)

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:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 💡 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

**What reviewers complain about**

- ⏱️ 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

**Reported bugs**

- 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

**Requested features**

- 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)


### Hello Tower

[App page](https://appshunter.io/ios/app/hello-tower/id1572719445)

Experience realistic airport ground control with this simulation app. Manage aircraft movements, issue clearances, and handle emergencies across over 40 diverse airports. Progress from simple single-runway operations to complex hub airports.

**Highlights:** Airport ground maneuvering simulation, Over 40 different airports, Simplified and real-size airport versions, Pushback, taxi, and take-off clearances, Emergency handling, Level-based progression

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hello Tower Test | $0.99 | one-time |
| Airport Pack | $0.99 | one-time |
| Sandbox test | $0.99 | one-time |
| Airport Pack | $1.99 | one-time |

**What reviewers like**

- 👍 Realistic simulation
- 👍 Challenging gameplay
- 👍 Good graphics
- 👍 No ads
- 👍 Addictive and fun

**What reviewers complain about**

- 🐛 Bugs and glitches
- 🐛 Unintuitive UI
- 🐛 Steep learning curve
- 🐛 Frequent game over on small mistakes
- 🐛 Lack of tutorial

**Reported bugs**

- Flight freezing on runway holding and turns
- Aircraft getting stuck and blocking routes
- 30-second departure timer disappearing
- Aircraft crashing with held aircraft on taxiway
- Levels not unlocking

**Requested features**

- Add more airports (US, European, Asian, Indian cities)
- Add an endless/sandbox mode
- Add AI voice recognition and ATC dialogues
- Implement a tutorial or walk-through
- Add a 'continue game' or save progress option


## Frequently asked questions

### Is Nuclear inc 2. Atom simulator free?

Nuclear inc 2. Atom simulator costs $0.99, with no in-app purchases.

### Is Hello Tower free?

Hello Tower costs $2.99, and also offers in-app purchases.

### Which has better reviews, Nuclear inc 2. Atom simulator or Hello Tower?

Hello Tower is rated higher. Nuclear inc 2. Atom simulator averages 3.8 out of 5 from 158 ratings, while Hello Tower averages 4.4 from 66 ratings.

### Do Nuclear inc 2. Atom simulator or Hello Tower have ads?

Neither Nuclear inc 2. Atom simulator nor Hello Tower shows ads.

### Which is updated more often, Nuclear inc 2. Atom simulator or Hello Tower?

Nuclear inc 2. Atom simulator ships an update every 26 months, and Hello Tower every 9 days. Most recently, Nuclear inc 2. Atom simulator was updated on November 11, 2026 and Hello Tower on November 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*