# DOCFIX vs AIChater

The clearest difference is update cadence: AIChater at every 4 days against DOCFIX's every 2 months. DOCFIX's advantage is iOS requirement (13 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. DOCFIX sells 3 one-off in-app purchases and AIChater sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

DOCFIX ships an update every 2 months, AIChater every 4 days. The most recent releases landed on October 13, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | DOCFIX | AIChater |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/docfix-auto-repair-guide/id6742226234/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 77 MB | 6 MB |
| Requires iOS | **13** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nam Nguyen Tien](https://appshunter.io/developer/1785840657) | [OPAI LLC](https://appshunter.io/developer/1896422175) |

## What reviewers say

### DOCFIX

[App page](https://appshunter.io/ios/app/docfix-auto-repair-guide/id6742226234)

Access comprehensive automotive repair manuals, wiring diagrams, and diagnostic procedures for a wide range of vehicles. Quickly find solutions for engine, electrical, and maintenance issues with step-by-step guides and expert recommendations.

**Highlights:** Comprehensive repair manuals, Wiring diagrams and schematics, Diagnostic trouble codes (DTCs) and fixes, Component location and specifications, Maintenance schedules and fluid capacities, Fast and accurate search, Regular updates

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DOCFIX 1 MONTH | $4.00 | one-time |
| DOCFIX 6 MONTHS | $20.00 | one-time |
| DOCFIX 12 MONTHS | $38.00 | one-time |


### AIChater

[App page](https://appshunter.io/ios/app/aichater-smart-mind-partner/id6777442991)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| week membership | $1.99 | per 7 days |
| year membership | $4.99 | per year |
| lifetime membership | $9.99 | one-time |


## Frequently asked questions

### Is DOCFIX free?

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

### Is AIChater free?

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

### Do DOCFIX or AIChater have ads?

Neither DOCFIX nor AIChater shows ads.

### Which is updated more often, DOCFIX or AIChater?

DOCFIX ships an update every 2 months, and AIChater every 4 days. Most recently, DOCFIX was updated on October 13, 2026 and AIChater on October 8, 2026.

---

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