# QI Calculator vs iFuel

The clearest difference is in-app purchases: iFuel at none against QI Calculator's 2. iFuel also leads on iOS requirement (12.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. QI Calculator sells 2 one-off in-app purchases. iFuel asks for nothing beyond the download.

## The numbers

| Metric | QI Calculator | iFuel |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ifuel/id6740661196/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | — | Free |
| Size | 129 MB | 60 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [shouhui qi](https://appshunter.io/developer/1185710456) | [江超 卢](https://appshunter.io/developer/1623760847) |

## What reviewers say

### QI Calculator

[App page](https://appshunter.io/ios/app/qi-calculator/id6476379861)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Theme | $0.99 | one-time |
| Theme Blue Sky | $0.99 | one-time |


### iFuel

[App page](https://appshunter.io/ios/app/ifuel/id6740661196)

This platform streamlines oil management by integrating data from gas stations, transport tankers, and depots. It supports standardized, integrated, and reliable cloud services for refined, digital, and comprehensive oil management.

**Highlights:** Standardized oil management, Integrated cloud services, Data coverage for stations, tankers, and depots, Digital oil management, Refined oil data services

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is QI Calculator free?

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

### Is iFuel free?

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

### Do QI Calculator or iFuel have ads?

Neither QI Calculator nor iFuel 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.*