# AD Certify vs WrenchStrike

The clearest difference is in-app purchases: AD Certify at none against WrenchStrike's 2. AD Certify also leads on iOS requirement (12.0 vs 15.0). WrenchStrike's advantage is update cadence (every 5 days vs every 7 months). On price, ads and device support there is nothing between them.

Both are free to download. WrenchStrike sells 2 in-app purchases, starting at $5.99 per month. AD Certify asks for nothing beyond the download.

AD Certify ships an update every 7 months, WrenchStrike every 5 days. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | AD Certify | WrenchStrike |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/wrenchstrike-mechanic-invoice/id6787785804/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 5 days** |
| Monetization | — | Free with in-app purchases |
| Size | 79 MB | 25 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Avery Dennison Retail Information Services](https://appshunter.io/developer/1083971408) | [HENOK KUDUS TESFAI](https://appshunter.io/developer/6786521839) |

## What reviewers say

### AD Certify

[App page](https://appshunter.io/ios/app/ad-certify/id1083971409)

**Features:** macOS Compatibility

**In-app purchases:** none


### WrenchStrike

[App page](https://appshunter.io/ios/app/wrenchstrike-mechanic-invoice/id6787785804)

Streamline your mobile mechanic business with this app. Create professional estimates and invoices with your logo, track jobs from start to finish, and accept payments directly. It also helps organize tax information and manage customer details.

**Highlights:** VIN scanning for vehicle details, Estimate to invoice conversion, Customizable invoices with logo, Online payment integration, Schedule C tax summary, Offline functionality, Customer and vehicle management

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WrenchStrike Pro | $5.99 | per month |
| WrenchStrike Pro Yearly | $55.99 | per year |


## Frequently asked questions

### Is AD Certify free?

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

### Is WrenchStrike free?

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

### Do AD Certify or WrenchStrike have ads?

Neither AD Certify nor WrenchStrike shows ads.

### Which is updated more often, AD Certify or WrenchStrike?

AD Certify ships an update every 7 months, and WrenchStrike every 5 days. Most recently, AD Certify was updated on October 26, 2026 and WrenchStrike 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.*