# VINwiki vs Fi Exhaust

The clearest difference is review sentiment: VINwiki at 63% against Fi Exhaust's 0%. VINwiki also leads on rating (4.8 vs 2.5) and ratings volume (4.1K vs 2). Fi Exhaust's advantage is iOS requirement (8.0 vs 16.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

VINwiki holds the better App Store score, 4.8 against 2.5. That said, the two scores are not equally well evidenced: VINwiki has 4.1K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 63% of VINwiki's written reviews are positive against 0% of Fi Exhaust's.

VINwiki ships an update monthly, Fi Exhaust every 2 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | VINwiki | Fi Exhaust |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4.1K ratings)](https://appshunter.io/ios/app/vinwiki/id1097335368/reviews)** | [2.5 (2 ratings)](https://appshunter.io/ios/app/fi-exhaust/id1179987177/reviews) |
| Number of ratings | **4.1K** | 2 |
| Positive reviews | **62.5% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free | Free |
| Size | 12 MB | 21 MB |
| Requires iOS | 16.0 | **8.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [VINwiki, Inc.](https://appshunter.io/developer/1097335367) | [Frequency Intelligent Exhaust Co. LTD](https://appshunter.io/developer/1191737344) |

## What reviewers say

### VINwiki

[App page](https://appshunter.io/ios/app/vinwiki/id1097335368)

Document your vehicle's complete history, including maintenance, upgrades, and mileage. Share your car's story with photos and service records to build its value. Follow friends' cars and see their automotive journeys.

**Highlights:** Create vehicle history reports, Contribute to vehicle histories, Curate vehicle history reports, Add photos and mileage updates, Document service records, Track car maintenance and upgrades, Follow friends' car journeys

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Great community
- 👍 Useful for car enthusiasts
- 💡 Innovative concept
- 👍 Helpful for car history research
- 👍 Easy to use

**What reviewers complain about**

- 🐛 Buggy and unstable
- 🔧 Needs major updates and improvements
- 🔧 Lacking key features
- 🔧 Poor user interface
- 🔧 Unreliable data

**Reported bugs**

- Login and registration issues
- Posts and data disappearing
- Inability to view personal posts and history
- Compatibility problems with newer iOS versions

**Requested features**

- Add ability to edit and delete posts
- Implement push notifications
- Improve search and filtering functionality
- Add support for international users and vehicles
- Optimize for iPad and larger screens


### Fi Exhaust

[App page](https://appshunter.io/ios/app/fi-exhaust/id1179987177)

Control your premium automobile's exhaust system with this app. Adjust valve settings, experience different exhaust sounds, and monitor your car's status. Requires a specific OBD2 controller module.

**Highlights:** Wireless valve control (Open/Close), Adjust exhaust sound and velocity, Valvetronic exhaust system function control, Intelligent switch button control (RPM, Speed, Turbo), Monitor car status, Access Fi Exhaust information

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

**In-app purchases:** none


## Frequently asked questions

### Is VINwiki free?

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

### Is Fi Exhaust free?

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

### Which has better reviews, VINwiki or Fi Exhaust?

VINwiki is rated higher. VINwiki averages 4.8 out of 5 from 4.1K ratings, while Fi Exhaust averages 2.5 from 2 ratings.

### Do VINwiki or Fi Exhaust have ads?

Neither VINwiki nor Fi Exhaust shows ads.

### Which is updated more often, VINwiki or Fi Exhaust?

VINwiki ships an update monthly, and Fi Exhaust every 2 months. Most recently, VINwiki was updated on November 6, 2026 and Fi Exhaust on November 2, 2026.

---

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