# Remember 3.1415 vs City Builder

The clearest difference is rating: City Builder at 4.9 against Remember 3.1415's 4.0. City Builder also leads on in-app purchases (none vs 1). Remember 3.1415's advantage is ads (none vs shown). On price, ratings volume, update cadence and device support there is nothing between them.

Both are free to download. Remember 3.1415 sells 1 one-off in-app purchase. City Builder asks for nothing beyond the download.

City Builder holds the better App Store score, 4.9 against 4.0. Both are backed by a comparable volume of ratings — 4 and 8 respectively.

Remember 3.1415 ships an update every 64 months, City Builder every 36 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Remember 3.1415 | City Builder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/remember-31415/id985688958/reviews) | **[4.9 (8 ratings)](https://appshunter.io/ios/app/city-builder-merge-puzzle/id1550112382/reviews)** |
| Number of ratings | 4 | **8** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 64 months | **Every 36 months** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 17 MB | 67 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [杨军 朱](https://appshunter.io/developer/564474259) | [Nguyen Thi Nhi](https://appshunter.io/developer/1031132565) |

## What reviewers say

### Remember 3.1415

[App page](https://appshunter.io/ios/app/remember-31415/id985688958)

Challenge your math and logic skills with this game that tests your ability to recall digits of Pi. Compete against the clock in various timed modes or an endless challenge. AI provides helpful tips to improve your input speed and accuracy.

**Highlights:** Over 1 million digits of Pi, Multiple timed game modes, Endless challenge mode, AI-powered input tips, Game over on time or error

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy Pro Version | $0.99 | one-time |


### City Builder

[App page](https://appshunter.io/ios/app/city-builder-merge-puzzle/id1550112382)

Build a sprawling metropolis by merging identical building tiles, inspired by the classic 2048 gameplay. Swipe to combine structures and grow your city to achieve the highest population score. Enjoy this free offline puzzle game with beautiful graphics.

**Highlights:** 2048-style tile merging gameplay, Offline play supported, Build and grow a city, High-resolution graphics, Undo and upgrade functions

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

**In-app purchases:** none


## Frequently asked questions

### Is Remember 3.1415 free?

Remember 3.1415 is free to download, with in-app purchases available.

### Is City Builder free?

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

### Which has better reviews, Remember 3.1415 or City Builder?

City Builder is rated higher. Remember 3.1415 averages 4.0 out of 5 from 4 ratings, while City Builder averages 4.9 from 8 ratings.

### Do Remember 3.1415 or City Builder have ads?

City Builder shows ads; Remember 3.1415 does not.

### Which is updated more often, Remember 3.1415 or City Builder?

Remember 3.1415 ships an update every 64 months, and City Builder every 36 months. Most recently, Remember 3.1415 was updated on November 6, 2026 and City Builder on November 3, 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.*