# Plus Calculator vs OulaFuel

The clearest difference is price: OulaFuel at Free against Plus Calculator's $0.99. OulaFuel also leads on update cadence (monthly vs every 11 months). Plus Calculator's advantage is iOS requirement (11.0 vs 15.6). On ads, in-app purchases and device support there is nothing between them.

OulaFuel is free to download; Plus Calculator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Plus Calculator ships an update every 11 months, OulaFuel monthly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Plus Calculator | OulaFuel |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[3.0 (27 ratings)](https://appshunter.io/ios/app/oulafuel/id1480980233/reviews)** |
| Number of ratings | — | **27** |
| Positive reviews | — | 16.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Monthly** |
| Monetization | — | Free |
| Size | 10 MB | 18 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [andrzej kar](https://appshunter.io/developer/1197919669) | [NATIONAL UNITED COMPUTERS COMPANY](https://appshunter.io/developer/1024110462) |

## What reviewers say

### Plus Calculator

[App page](https://appshunter.io/ios/app/plus-calculator/id1439014026)

**Features:** macOS Compatibility

**In-app purchases:** none


### OulaFuel

[App page](https://appshunter.io/ios/app/oulafuel/id1480980233)

Locate nearby stations, manage your fuel card, and redeem vouchers. This app simplifies fuel purchases and station visits.

**Highlights:** Find nearest Oula stations, Recharge Oula Card, Redeem vouchers, Station locator

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

**In-app purchases:** none


## Frequently asked questions

### Is Plus Calculator free?

Plus Calculator costs $0.99, with no in-app purchases.

### Is OulaFuel free?

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

### Do Plus Calculator or OulaFuel have ads?

Neither Plus Calculator nor OulaFuel shows ads.

### Which is updated more often, Plus Calculator or OulaFuel?

Plus Calculator ships an update every 11 months, and OulaFuel monthly. Most recently, Plus Calculator was updated on October 25, 2026 and OulaFuel on October 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.*