# Contact Assistant vs 油迹Pro

The clearest difference is price: Contact Assistant at Free against 油迹Pro's $0.99. 油迹Pro's advantage is in-app purchases (none vs 1). On update cadence, ads, device support and iOS requirement there is nothing between them.

Contact Assistant is free to download; 油迹Pro costs $0.99 up front. Contact Assistant sells 1 one-off in-app purchase. 油迹Pro asks for nothing beyond the download.

Contact Assistant ships an update monthly, 油迹Pro every 2 weeks. The most recent releases landed on October 17, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Contact Assistant | 油迹Pro |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | — | Paid |
| Size | 9 MB | 5 MB |
| Requires iOS | 17.1 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [东华 石](https://appshunter.io/developer/1865830282) | [熵析云枢网络科技](https://appshunter.io/developer/1873311794) |

## What reviewers say

### Contact Assistant

[App page](https://appshunter.io/ios/app/contact-assistanteasy-manage/id6758394974)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Unlock | $1.99 | one-time |


### 油迹Pro

[App page](https://appshunter.io/ios/app/pro/id6758520192)

This app helps car owners manage their fuel and charging expenses with intuitive logging and smart analysis. Track your driving costs, understand fuel consumption patterns, and visualize your energy spending trends. It offers ad-free, privacy-focused data management for multiple vehicles.

**Highlights:** Record fuel and charging transactions, Track fuel consumption and costs, Visualize energy usage trends, Manage multiple vehicles, Cloud synchronization, Ad-free experience, Data privacy protection

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

**In-app purchases:** none


## Frequently asked questions

### Is Contact Assistant free?

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

### Is 油迹Pro free?

油迹Pro costs $0.99, with no in-app purchases.

### Do Contact Assistant or 油迹Pro have ads?

Neither Contact Assistant nor 油迹Pro shows ads.

### Which is updated more often, Contact Assistant or 油迹Pro?

Contact Assistant ships an update monthly, and 油迹Pro every 2 weeks. Most recently, Contact Assistant was updated on October 17, 2026 and 油迹Pro on October 25, 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.*