# Developer Tools vs CertTool

The clearest difference is in-app purchases: CertTool at none against Developer Tools's 4. Developer Tools's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Developer Tools sells 4 in-app purchases, starting at $0.29 per 7 days. CertTool asks for nothing beyond the download.

Developer Tools ships an update every 3 weeks, CertTool every 2 months. The most recent releases landed on September 28, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Developer Tools | CertTool |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 16 MB | 6 MB |
| Requires iOS | 17 | **16.6** |
| Devices | iPad, Mac | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Basile Cornet](https://appshunter.io/developer/373857900) | [Tim Wilbrink](https://appshunter.io/developer/412396045) |

## What reviewers say

### Developer Tools

[App page](https://appshunter.io/ios/app/developer-tools-tooly/id6639614589)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tooly Pro Weekly | $0.29 | per 7 days |
| Tooly Pro Monthly | $1.49 | per month |
| Tooly Pro Yearly | $9.99 | per year |
| Tooly Pro Lifetime | $24.99 | one-time |


### CertTool

[App page](https://appshunter.io/ios/app/certtool/id6742362154)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Developer Tools free?

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

### Is CertTool free?

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

### Do Developer Tools or CertTool have ads?

Neither Developer Tools nor CertTool shows ads.

### Which is updated more often, Developer Tools or CertTool?

Developer Tools ships an update every 3 weeks, and CertTool every 2 months. Most recently, Developer Tools was updated on September 28, 2026 and CertTool on October 5, 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.*