# Fuel Consumption vs Authentime

The clearest difference is update cadence: Authentime at every 2 days against Fuel Consumption's every 3 weeks. Authentime also leads on rating (5.0 vs 4.8) and iOS requirement (15.1 vs 17.2). Fuel Consumption's advantage is ratings volume (37 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Fuel Consumption sells 3 in-app purchases, starting at $0.99 per month and Authentime sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Authentime holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Fuel Consumption has 37 ratings behind it against 2, so its average is the more settled of the two.

Fuel Consumption ships an update every 3 weeks, Authentime every 2 days. The most recent releases landed on September 19, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Fuel Consumption | Authentime |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (37 ratings)](https://appshunter.io/ios/app/fuel-consumption-drivedex/id6503341002/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/authentime/id6746581706/reviews)** |
| Number of ratings | **37** | 2 |
| Positive reviews | 64.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 23 MB | 36 MB |
| Requires iOS | 17.2 | **15.1** |
| Devices | iPhone, iPad, Vision Pro | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Florian Seida](https://appshunter.io/developer/1503312095) | [Sujith Varughese](https://appshunter.io/developer/1739669809) |

## What reviewers say

### Fuel Consumption

[App page](https://appshunter.io/ios/app/fuel-consumption-drivedex/id6503341002)

Easily track maintenance, expenses, and usage for all your vehicles, from cars to bicycles. Get service reminders, analyze fuel efficiency, and log all costs to understand your vehicle's total expense over time. Seamlessly integrates with iOS for quick access and hands-free updates.

**Highlights:** Track vehicle usage by miles, kilometers, or hours, Receive maintenance and service reminders, Log refuels and analyze fuel efficiency, Record all vehicle expenses, Maintain a complete service and repair history, iOS integration with widgets and Siri commands

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DriveDex Pro Monthly | $0.99 | per month |
| DriveDex Pro Annual | $9.99 | per year |
| DriveDex Pro Lifetime | $19.99 | one-time |


### Authentime

[App page](https://appshunter.io/ios/app/authentime/id6746581706)

This app uses AI to analyze images of luxury watches, providing an authenticity assessment. It offers a confidence score, visual feedback, and an educational library to help users identify fakes. The interface is user-friendly and prioritizes data security.

**Highlights:** AI-driven image analysis, Authenticity confidence rating, Visual feedback on analysis, Educational reference library, User-friendly interface, Secure and private data processing

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Authentime Pro Monthly | $4.99 | per month |
| Authentime Pro Yearly | $29.99 | per year |
| Pro | $49.99 | one-time |


## Frequently asked questions

### Is Fuel Consumption free?

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

### Is Authentime free?

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

### Which has better reviews, Fuel Consumption or Authentime?

Authentime is rated higher. Fuel Consumption averages 4.8 out of 5 from 37 ratings, while Authentime averages 5.0 from 2 ratings.

### Do Fuel Consumption or Authentime have ads?

Neither Fuel Consumption nor Authentime shows ads.

### Which is updated more often, Fuel Consumption or Authentime?

Fuel Consumption ships an update every 3 weeks, and Authentime every 2 days. Most recently, Fuel Consumption was updated on September 19, 2026 and Authentime on September 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*