# StyleGuide vs One Dev Tools

The clearest difference is device support: StyleGuide at 3 against One Dev Tools's 1. One Dev Tools's advantage is iOS requirement (17.6 vs 26.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. StyleGuide sells 7 in-app purchases, starting at $1.99 per year and One Dev Tools sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

StyleGuide ships an update every 11 days, One Dev Tools fortnightly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | StyleGuide | One Dev Tools |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 11 days** | Fortnightly |
| Size | 24 MB | 20 MB |
| Requires iOS | 26.0 | **17.6** |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Adam Foot](https://appshunter.io/developer/1071261283) | [Selma Lindqvist](https://appshunter.io/developer/1896618449) |

## What reviewers say

### StyleGuide

[App page](https://appshunter.io/ios/app/styleguide-indie-dev-hig-tool/id6503706164)

**Features:** Family Sharing, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| StyleGuide Pro (Yearly) | $1.99 | per year |
| Small Tip | $1.99 | one-time |
| StyleGuide Pro (Lifetime) | $3.99 | one-time |
| Medium Tip | $4.99 | one-time |
| StyleGuide Pro (Lifetime) | $7.99 | one-time |
| Large Tip | $9.99 | one-time |
| Huge Tip | $19.99 | one-time |


### One Dev Tools

[App page](https://appshunter.io/ios/app/one-dev-tools/id6768955248)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Theme Neon Violet | $1.99 | one-time |
| One Casino | $1.99 | one-time |


## Frequently asked questions

### Is StyleGuide free?

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

### Is One Dev Tools free?

One Dev Tools is free to download, with in-app purchases available.

### Do StyleGuide or One Dev Tools have ads?

Neither StyleGuide nor One Dev Tools shows ads.

### Which is updated more often, StyleGuide or One Dev Tools?

StyleGuide ships an update every 11 days, and One Dev Tools fortnightly. Most recently, StyleGuide was updated on October 24, 2026 and One Dev Tools on October 25, 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.*