# AutoOBDII vs NameDay Calendars

The clearest difference is update cadence: NameDay Calendars at every 4 days against AutoOBDII's every 4 months. AutoOBDII's advantage is iOS requirement (13 vs 26.5). On price, ads, in-app purchases and device support there is nothing between them.

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

AutoOBDII ships an update every 4 months, NameDay Calendars every 4 days. The most recent releases landed on October 13, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | AutoOBDII | NameDay Calendars |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/autoobdii/id6503489503/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 83 MB | 1 MB |
| Requires iOS | **13** | 26.5 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Shenzhen Lonauto Technology Co., Ltd.](https://appshunter.io/developer/1744849406) | [Haim Cohen](https://appshunter.io/developer/635691700) |

## What reviewers say

### AutoOBDII

[App page](https://appshunter.io/ios/app/autoobdii/id6503489503)

This application connects to your vehicle via Bluetooth to perform diagnostics and offer driving assistance. It can read and clear fault codes, analyze performance, and track your journeys. Supports multiple languages and high-speed data transmission.

**Highlights:** Bluetooth vehicle communication, Fault code reading and clearing, Instrument panel monitoring, Performance testing, Travel analysis, High-speed data transmission, Low power consumption

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

**In-app purchases:** none


### NameDay Calendars

[App page](https://appshunter.io/ios/app/nameday-calendars/id6804304091)

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

**In-app purchases:** none


## Frequently asked questions

### Is AutoOBDII free?

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

### Is NameDay Calendars free?

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

### Do AutoOBDII or NameDay Calendars have ads?

Neither AutoOBDII nor NameDay Calendars shows ads.

### Which is updated more often, AutoOBDII or NameDay Calendars?

AutoOBDII ships an update every 4 months, and NameDay Calendars every 4 days. Most recently, AutoOBDII was updated on October 13, 2026 and NameDay Calendars on October 7, 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.*