# AutoRenu vs Carnotes Research

The clearest difference is in-app purchases: AutoRenu at none against Carnotes Research's 1. AutoRenu also leads on iOS requirement (15.1 vs 18.0). Carnotes Research's advantage is update cadence (every 3 days vs monthly) and ratings volume (5 vs 1). On price, rating, ads and device support there is nothing between them.

Both are free to download. Carnotes Research sells 1 in-app purchase, starting at $12.00 per month. AutoRenu asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for AutoRenu against 5.0 for Carnotes Research. That said, the two scores are not equally well evidenced: Carnotes Research has 5 ratings behind it against 1, so its average is the more settled of the two.

AutoRenu ships an update monthly, Carnotes Research every 3 days. The most recent releases landed on July 25, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | AutoRenu | Carnotes Research |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/autorenu/id6737540648/reviews) | [5.0 (5 ratings)](https://appshunter.io/ios/app/carnotes-research/id6742468639/reviews) |
| Number of ratings | 1 | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 98 MB | 27 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Minh Nguyen Hoang](https://appshunter.io/developer/1661519244) | [Osama Lahham](https://appshunter.io/developer/1730315138) |

## What reviewers say

### AutoRenu

[App page](https://appshunter.io/ios/app/autorenu/id6737540648)

This app provides automotive cleaning products, tutorials, and certifications for car enthusiasts, detailing professionals, and dealerships. It ensures secure transactions and a smooth user experience for all your vehicle maintenance needs.

**Highlights:** Automotive cleaning product discovery, Exclusive tutorials, Professional certifications, Secure payment processing, User-friendly interface

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

**In-app purchases:** none


### Carnotes Research

[App page](https://appshunter.io/ios/app/carnotes-research/id6742468639)

Research vehicles to make informed purchasing decisions. Access detailed information on pricing, trims, safety ratings, and specifications to ensure you get the best deal on your next car.

**Highlights:** Market-based price distributions, Trim and feature comparisons, Safety and crash ratings, Comprehensive vehicle specifications, Dealership price insights

**Features:** Apple Wallet

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Carnotes Insights | $12.00 | per month |


## Frequently asked questions

### Is AutoRenu free?

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

### Is Carnotes Research free?

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

### Which has better reviews, AutoRenu or Carnotes Research?

AutoRenu and Carnotes Research are both rated 5.0 out of 5 on the App Store, from 1 and 5 ratings respectively.

### Do AutoRenu or Carnotes Research have ads?

Neither AutoRenu nor Carnotes Research shows ads.

### Which is updated more often, AutoRenu or Carnotes Research?

AutoRenu ships an update monthly, and Carnotes Research every 3 days. Most recently, AutoRenu was updated on July 25, 2026 and Carnotes Research on September 10, 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.*