# Traffic Jam Fever vs Cairn

The clearest difference is update cadence: Cairn at every 11 days against Traffic Jam Fever's monthly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Traffic Jam Fever sells 15 one-off in-app purchases and Cairn sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Traffic Jam Fever ships an update monthly, Cairn every 11 days. The most recent releases landed on October 18, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Traffic Jam Fever | Cairn |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (28K ratings)](https://appshunter.io/ios/app/traffic-jam-fever/id1659370477/reviews)** | — |
| Number of ratings | **28K** | — |
| Positive reviews | 6.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 11 days** |
| Monetization | Free with in-app purchases | — |
| Size | 392 MB | 8 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [SUPERSONIC STUDIOS LTD](https://appshunter.io/developer/1499845738) | [Branko Borota](https://appshunter.io/developer/1228658475) |

## What reviewers say

### Traffic Jam Fever

[App page](https://appshunter.io/ios/app/traffic-jam-fever/id1659370477)

Design new road networks to guide vehicles and prevent traffic jams. Strategically draw paths to ensure smooth passage for all cars.

**Highlights:** Draw new roads, Manage vehicle flow, Prevent traffic jams, Strategic path design, Pass more vehicles

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

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Booster 2 | $0.99 | one-time |
| Booster 3 | $0.99 | one-time |
| Booster 6 | $0.99 | one-time |
| Booster 4 | $0.99 | one-time |
| Booster 1 | $0.99 | one-time |
| No Ads | $2.99 | one-time |
| Flow1SetA | $2.99 | one-time |
| No Ads + Coins | $4.99 | one-time |
| Coins + Booster + Vehicles | $4.99 | one-time |
| Coins + Booster | $4.99 | one-time |
| Construction Boost | $5.99 | one-time |
| Construction Boost | $6.99 | one-time |
| No Ads + Coins + Boosters | $9.99 | one-time |
| Coins + Boosters + Vehicles | $9.99 | one-time |
| Traffic Madness | $10.99 | one-time |

**What reviewers like**

- 🚀 Fun gameplay
- 👍 Engaging traffic management
- 💡 Potential for expansion

**What reviewers complain about**

- 🔥 Excessive ads
- 🔒 Paid 'no ads' option doesn't work
- 🐛 Progress reset when switching states
- 🤯 Overwhelming ad frequency

**Reported bugs**

- Game progress and earnings reset unexpectedly
- Buttons/UI elements obstructed by ads
- Ads play even when declined

**Requested features**

- More customization options for road layouts
- Ability to carry over progress between states
- Improved ad implementation or paid ad-free version


### Cairn

[App page](https://appshunter.io/ios/app/cairn-stone-stack/id6782169883)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee | $1.99 | one-time |


## Frequently asked questions

### Is Traffic Jam Fever free?

Traffic Jam Fever is free to download, with in-app purchases available.

### Is Cairn free?

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

### Do Traffic Jam Fever or Cairn have ads?

Neither Traffic Jam Fever nor Cairn shows ads.

### Which is updated more often, Traffic Jam Fever or Cairn?

Traffic Jam Fever ships an update monthly, and Cairn every 11 days. Most recently, Traffic Jam Fever was updated on October 18, 2026 and Cairn on September 24, 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.*