# Train Valley II vs Critical

The clearest difference is ads: Train Valley II at none against Critical's shown. Train Valley II also leads on review sentiment (52% vs 18%) and rating (4.7 vs 4.4). Critical's advantage is update cadence (fortnightly vs every 5 months). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

Both are free to download. Train Valley II sells 6 one-off in-app purchases and Critical sells 17 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Train Valley II holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 107 and 147 respectively. Written reviews point the same way: 52% of Train Valley II's written reviews are positive against 18% of Critical's.

Train Valley II ships an update every 5 months, Critical fortnightly. The most recent releases landed on October 22, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Train Valley II | Critical |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (107 ratings)](https://appshunter.io/ios/app/train-valley-ii/id1621285774/reviews)** | [4.4 (147 ratings)](https://appshunter.io/ios/app/critical-incremental-reactor/id6446354857/reviews) |
| Number of ratings | 107 | **147** |
| Positive reviews | **52.2% of reviews** | 18.2% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 312 MB | 99 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [META Publishing](https://appshunter.io/developer/1659641778) | [WaffleStack Studio LLC](https://appshunter.io/developer/1523413949) |

## What reviewers say

### Train Valley II

[App page](https://appshunter.io/ios/app/train-valley-ii/id1621285774)

Manage a growing railroad company through various eras, from the Industrial Revolution to the future. Build tracks, upgrade trains, and ensure timely deliveries to meet the demands of cities and industries. This tycoon puzzle game challenges you to keep your operations efficient and accident-free.

**Highlights:** Train tycoon puzzle gameplay, Build railroads and upgrade locomotives, Manage a railroad company, Meet city and industry needs, Over 227 levels, Unlock 18 locomotive models

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Passenger Flow Pack | $0.99 | one-time |
| Ruby Bundle | $4.99 | one-time |
| Sapphire Bundle | $5.99 | one-time |
| Emerald Bundle | $5.99 | one-time |
| Starter Pack | $9.99 | one-time |
| Epic Bundle | $19.99 | one-time |


### Critical

[App page](https://appshunter.io/ios/app/critical-incremental-reactor/id6446354857)

Manage a reactor to prevent it from becoming critical by delivering water. Earn money over time to unlock permanent upgrades and improve your survival capabilities. Invest wisely to extend your runs and uncover secrets.

**Highlights:** Reactor management, Incremental income generation, Permanent upgrades, Research and secrets, Survival gameplay

**Features:** macOS Compatibility

**In-app purchases (17)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 Gems | $2.99 | one-time |
| 100 Gems | $4.99 | one-time |
| Remove Ads | $7.99 | one-time |
| 225 Gems | $7.99 | one-time |
| Starter Pack | $9.99 | one-time |
| Remove All Ads | $9.99 | one-time |
| 225 Gems | $9.99 | one-time |
| 500 Gems | $9.99 | one-time |
| Pro Pack | $9.99 | one-time |
| Pro Pack | $14.99 | one-time |
| New Player Sale | $14.99 | one-time |
| 500 Gems | $14.99 | one-time |
| 1400 Gems | $19.99 | one-time |
| 800 Gems | $19.99 | one-time |
| 1400 Gems | $29.99 | one-time |
| 3000 Gems | $29.99 | one-time |
| 3000 Gems | $39.99 | one-time |


## Frequently asked questions

### Is Train Valley II free?

Train Valley II is free to download, with in-app purchases available.

### Is Critical free?

Critical is free to download, with in-app purchases available.

### Which has better reviews, Train Valley II or Critical?

Train Valley II is rated higher. Train Valley II averages 4.7 out of 5 from 107 ratings, while Critical averages 4.4 from 147 ratings.

### Do Train Valley II or Critical have ads?

Critical shows ads; Train Valley II does not.

### Which is updated more often, Train Valley II or Critical?

Train Valley II ships an update every 5 months, and Critical fortnightly. Most recently, Train Valley II was updated on October 22, 2026 and Critical on October 21, 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.*