# Fuel 737NG vs Digit Memory π

Fuel 737NG and Digit Memory π are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Fuel 737NG | Digit Memory π |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 83.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Monetization | — | Free |
| Size | 2 MB | 4 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jaroslav Sterba](https://appshunter.io/developer/1485870956) | [merve bayraktar](https://appshunter.io/developer/1797360605) |

## What reviewers say

### Fuel 737NG

[App page](https://appshunter.io/ios/app/fuel-737ng/id1576076386)

**Features:** macOS Compatibility

**In-app purchases:** none


### Digit Memory π

[App page](https://appshunter.io/ios/app/digit-memory/id6742198711)

This app presents random numbers on screen for a brief moment, challenging you to recall them. It features adjustable difficulty levels and tracks your performance, offering a fun way to test and improve your memory skills.

**Highlights:** Random number sequences, One-second viewing intervals, Compare current to previous number, Multiple difficulty levels, Performance results screen, Memory skill challenge

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fuel 737NG free?

Fuel 737NG is free to download, with no in-app purchases.

### Is Digit Memory π free?

Digit Memory π is free to download, with no in-app purchases.

### Do Fuel 737NG or Digit Memory π have ads?

Neither Fuel 737NG nor Digit Memory π shows ads.

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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.*