# Developer vs Contrastly

The clearest difference is in-app purchases: Developer at none against Contrastly's 2. Developer also leads on update cadence (daily vs every 3 weeks). Contrastly's advantage is iOS requirement (15.6 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Contrastly sells 2 in-app purchases, starting at $6.99 per year. Developer asks for nothing beyond the download.

Developer ships an update daily, Contrastly every 3 weeks. The most recent releases landed on November 4, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Developer | Contrastly |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 3 weeks |
| Size | 1 MB | 3 MB |
| Requires iOS | 18.0 | **15.6** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Mannon Wallace](https://appshunter.io/developer/1695318150) | [帆 张](https://appshunter.io/developer/1869481736) |

## What reviewers say

### Developer

[App page](https://appshunter.io/ios/app/developer-tools/id6739995108)

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

**In-app purchases:** none


### Contrastly

[App page](https://appshunter.io/ios/app/contrastly-wcag-checker/id6759523070)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro (Yearly) | $6.99 | per year |
| Unlimited Export (Lifetime) | $17.99 | one-time |


## Frequently asked questions

### Is Developer free?

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

### Is Contrastly free?

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

### Do Developer or Contrastly have ads?

Neither Developer nor Contrastly shows ads.

### Which is updated more often, Developer or Contrastly?

Developer ships an update daily, and Contrastly every 3 weeks. Most recently, Developer was updated on November 4, 2026 and Contrastly on November 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.*