# 1 vs iOBD Pro

The clearest difference is price: 1 at Free against iOBD Pro's $29.99. iOBD Pro's advantage is in-app purchases (none vs 4) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

1 is free to download; iOBD Pro costs $29.99 up front. 1 sells 4 in-app purchases, starting at $2.99 per 2 months. iOBD Pro asks for nothing beyond the download.

1 ships an update every 3 months, iOBD Pro every 2 weeks. The most recent releases landed on October 18, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | 1 | iOBD Pro |
| --- | --- | --- |
| Price | **Free** | $29.99 |
| Rating | **[4.7 (46 ratings)](https://appshunter.io/ios/app/1-2-3-fuel/id688981330/reviews)** | — |
| Number of ratings | **46** | — |
| Positive reviews | 61.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Best chart rank | — | **#160** |
| Size | 36 MB | 4 MB |
| Requires iOS | 18.0 | **17.2** |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bottled Software GmbH](https://appshunter.io/developer/530238613) | [Davidson Chua](https://appshunter.io/developer/401983615) |

## What reviewers say

### 1

[App page](https://appshunter.io/ios/app/1-2-3-fuel/id688981330)

Find the cheapest gas stations in your area or along a planned route. Get automatic price updates and set price alarms for falling fuel costs. Save money on every refill with this intuitive navigation tool.

**Highlights:** Real-time fuel prices, Route-based price search, Price alarm notifications, Favorite station list, Map view of stations, iOS optimized interface

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1-2-3 Fuel Plus (2 Months) | $2.99 | per 2 months |
| 1-2-3 Fuel Plus (6 Months) | $4.99 | per 6 months |
| 1-2-3 Fuel Plus (1 Year) | $8.99 | per year |
| 1-2-3 Fuel Plus (Family) | $14.99 | per year |


### iOBD Pro

[App page](https://appshunter.io/ios/app/iobd-pro/id6748813841)

**Currently charting:** #160 Top Paid · Navigation (US App Store)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 1 free?

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

### Is iOBD Pro free?

iOBD Pro costs $29.99, with no in-app purchases.

### Do 1 or iOBD Pro have ads?

1 shows ads; iOBD Pro does not.

### Which is updated more often, 1 or iOBD Pro?

1 ships an update every 3 months, and iOBD Pro every 2 weeks. Most recently, 1 was updated on October 18, 2026 and iOBD Pro on October 17, 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.*