# City Builder Idle vs Idle Polygon

The clearest difference is rating: City Builder Idle at 4.6 against Idle Polygon's 3.0. City Builder Idle also leads on in-app purchases (none vs 7) and update cadence (daily vs every 9 days). Idle Polygon's advantage is iOS requirement (13.0 vs 15.1). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Idle Polygon sells 7 one-off in-app purchases. City Builder Idle asks for nothing beyond the download.

City Builder Idle holds the better App Store score, 4.6 against 3.0. Both are backed by a comparable volume of ratings — 5 and 4 respectively.

City Builder Idle ships an update daily, Idle Polygon every 9 days. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | City Builder Idle | Idle Polygon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (5 ratings)](https://appshunter.io/ios/app/city-builder-idle/id6757754809/reviews)** | [3.0 (4 ratings)](https://appshunter.io/ios/app/idle-polygon/id6758945143/reviews) |
| Number of ratings | **5** | 4 |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Daily** | Every 9 days |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 31 MB | 201 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [LudoMagus GmbH](https://appshunter.io/developer/1832714895) | [KOKI MORITA](https://appshunter.io/developer/1875902049) |

## What reviewers say

### City Builder Idle

[App page](https://appshunter.io/ios/app/city-builder-idle/id6757754809)

Build a city from a single house to a sprawling metropolis. Earn income, unlock permanent upgrades through prestige, and enjoy strategic gameplay without forced timers or pay-to-win mechanics. Play offline at your own pace.

**Highlights:** Build and expand your city, Earn offline income, Prestige for permanent upgrades, No forced ads or pay-to-win, Strategic building placement, Daily login rewards

**In-app purchases:** none


### Idle Polygon

[App page](https://appshunter.io/ios/app/idle-polygon/id6758945143)

Engage in a visually stunning incremental game with RPG battle elements. Upgrade your geometries and income to astronomical levels, and master prestige cycles for endless replayability.

**Highlights:** Mesmerizing geometric visuals, Incremental upgrades and income, RPG battles with strategic gameplay, Endless replayability with prestige cycles, Hypnotic art style

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Diamond S | $0.99 | one-time |
| Diamond M | $2.99 | one-time |
| Offline Boost | $3.99 | one-time |
| Remove Ads | $4.99 | one-time |
| Diamond L | $5.99 | one-time |
| Diamond XL | $29.99 | one-time |
| Diamond MAX | $59.99 | one-time |


## Frequently asked questions

### Is City Builder Idle free?

City Builder Idle is free to download, with no in-app purchases.

### Is Idle Polygon free?

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

### Which has better reviews, City Builder Idle or Idle Polygon?

City Builder Idle is rated higher. City Builder Idle averages 4.6 out of 5 from 5 ratings, while Idle Polygon averages 3.0 from 4 ratings.

### Do City Builder Idle or Idle Polygon have ads?

Both City Builder Idle and Idle Polygon show ads.

### Which is updated more often, City Builder Idle or Idle Polygon?

City Builder Idle ships an update daily, and Idle Polygon every 9 days. Most recently, City Builder Idle was updated on November 9, 2026 and Idle Polygon on October 31, 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.*