# OBDII Trouble Codes vs Cones Calculator

The clearest difference is update cadence: OBDII Trouble Codes at every 25 months against Cones Calculator's every 73 months. OBDII Trouble Codes also leads on iOS requirement (13.0 vs 18.0). Cones Calculator's advantage is price ($2.99 vs $3.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

OBDII Trouble Codes costs $3.99 and Cones Calculator $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

OBDII Trouble Codes ships an update every 25 months, Cones Calculator every 73 months. The most recent releases landed on October 14, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | OBDII Trouble Codes | Cones Calculator |
| --- | --- | --- |
| Price | $3.99 | **$2.99** |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/cones-calculator/id1490219230/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 21.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 25 months** | Every 73 months |
| Monetization | Paid | Paid |
| Size | 54 MB | 2 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | +4 |
| Developer | [Oleg Chumakov](https://appshunter.io/developer/688892120) | [Imran Pinjara](https://appshunter.io/developer/1484488781) |

## What reviewers say

### OBDII Trouble Codes

[App page](https://appshunter.io/ios/app/obdii-trouble-codes/id688892117)

Access a comprehensive offline database of over 18,500 diagnostic trouble codes for cars. Simply enter a fault code to get detailed descriptions without needing an internet connection or car model selection.

**Highlights:** Offline OBD2/EOBD code database, Over 18,500 error descriptions, No internet connection required, Simple fault code entry, Supports generic and manufacturer-specific codes, Copy and paste error descriptions

**Features:** macOS Compatibility

**In-app purchases:** none


### Cones Calculator

[App page](https://appshunter.io/ios/app/cones-calculator/id1490219230)

This tool calculates flat pattern layouts for various conical shapes, including truncated, multi-level, eccentric, and tori cones. It provides essential development dimensions for engineers and fabricators, simplifying complex layout tasks and reducing errors.

**Highlights:** Flat pattern layouts for conical shapes, Truncated cone calculations, Multi-level cone layouts, Eccentric cone layouts, Tori cone calculations, Development radius and angle generation

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

**In-app purchases:** none


## Frequently asked questions

### Is OBDII Trouble Codes free?

OBDII Trouble Codes costs $3.99, with no in-app purchases.

### Is Cones Calculator free?

Cones Calculator costs $2.99, with no in-app purchases.

### Do OBDII Trouble Codes or Cones Calculator have ads?

Neither OBDII Trouble Codes nor Cones Calculator shows ads.

### Which is updated more often, OBDII Trouble Codes or Cones Calculator?

OBDII Trouble Codes ships an update every 25 months, and Cones Calculator every 73 months. Most recently, OBDII Trouble Codes was updated on October 14, 2026 and Cones Calculator on October 1, 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.*