# explainISO9606 vs iA Writer

The clearest difference is review sentiment: iA Writer at 73% against explainISO9606's 0%. iA Writer also leads on update cadence (fortnightly vs every 4 months) and chart position (#38 vs unranked). explainISO9606's advantage is price ($1.99 vs $19.99). On ads, in-app purchases and monetization model there is nothing between them.

explainISO9606 costs $1.99 and iA Writer $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

explainISO9606 ships an update every 4 months, iA Writer fortnightly. The most recent releases landed on October 14, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | explainISO9606 | iA Writer |
| --- | --- | --- |
| Price | **$1.99** | $19.99 |
| Rating | — | **[4.6 (1.5K ratings)](https://appshunter.io/ios/app/ia-writer/id775737172/reviews)** |
| Number of ratings | — | **1.5K** |
| Positive reviews | 0.0% of reviews | **73.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | Paid | Paid |
| Best chart rank | — | **#38** |
| Size | 1 MB | 70 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Georg Rose](https://appshunter.io/developer/521567472) | [Information Architects AG](https://appshunter.io/developer/775737175) |

## What reviewers say

### explainISO9606

[App page](https://appshunter.io/ios/app/explainiso9606/id718226042)

This app helps users understand welder qualifications based on ISO 9606-1 standards. It provides detailed explanations and visual aids for specific welding parameters, allowing users to verify welder suitability for particular tasks.

**Highlights:** ISO 9606-1 welder qualification reference, Detailed explanations of welding elements, Visual aids and sketches, Welder suitability verification, Searchable ISO 9606-1 parameters

**Features:** macOS Compatibility

**In-app purchases:** none


### iA Writer

[App page](https://appshunter.io/ios/app/ia-writer/id775737172)

**Currently charting:** #38 Top Paid · Productivity (US App Store)

A distraction-free writing environment designed to help you focus on your words. It offers features like Focus Mode, plain text writing with HTML preview, and robust organization tools. Customize your writing experience and export to various formats.

**Highlights:** Distraction-free writing environment, Focus Mode for enhanced concentration, Plain text writing with HTML preview, Document organization and search, Customizable keyboard layout, Export to various formats (Word, PDF, HTML, WordPress, Medium)

**In-app purchases:** none

**What reviewers like**

- 🚀 Distraction-free writing experience
- 👍 Elegant and minimalist design
- 💡 Helpful syntax highlighting and formatting tools
- 🚀 Seamless sync across devices
- 👍 Reliable and stable performance

**What reviewers complain about**

- 🐛 Occasional crashes and sync issues
- 🔒 Limited cloud storage integration options
- 👎 Lack of advanced organization and navigation features
- 👎 Subpar text selection and cursor control
- 👎 Dated app icon and visual design

**Reported bugs**

- Crashes when opening certain files
- Sync issues leading to data loss
- Formatting problems when exporting to other formats

**Requested features**

- Improved cloud storage integration (Dropbox, Google Drive, etc.)
- Enhanced file management and organization tools
- Better text selection and cursor control
- More customization options for appearance and layout
- Integrated outline/table of contents view


## Frequently asked questions

### Is explainISO9606 free?

explainISO9606 costs $1.99, with no in-app purchases.

### Is iA Writer free?

iA Writer costs $19.99, with no in-app purchases.

### Do explainISO9606 or iA Writer have ads?

Neither explainISO9606 nor iA Writer shows ads.

### Which is updated more often, explainISO9606 or iA Writer?

explainISO9606 ships an update every 4 months, and iA Writer fortnightly. Most recently, explainISO9606 was updated on October 14, 2026 and iA Writer on October 24, 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.*