# APEX Machine Maintenance Tool vs DomainCERTin

The clearest difference is in-app purchases: APEX Machine Maintenance Tool at none against DomainCERTin's 10. DomainCERTin's advantage is update cadence (monthly vs every 3 months) and iOS requirement (14.0 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. DomainCERTin sells 10 one-off in-app purchases. APEX Machine Maintenance Tool asks for nothing beyond the download.

APEX Machine Maintenance Tool ships an update every 3 months, DomainCERTin monthly. The most recent releases landed on October 18, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | APEX Machine Maintenance Tool | DomainCERTin |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Size | 2 MB | 177 MB |
| Requires iOS | 18.6 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [APEX gaming technology](https://appshunter.io/developer/491002469) | [BlockCerts](https://appshunter.io/developer/1478391176) |

## What reviewers say

### APEX Machine Maintenance Tool

[App page](https://appshunter.io/ios/app/apex-machine-maintenance-tool/id1001570374)

**Features:** macOS Compatibility

**In-app purchases:** none


### DomainCERTin

[App page](https://appshunter.io/ios/app/domaincertin/id6445944364)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy 10 Black BCERTs Credits | $1.99 | one-time |
| Buy 20 Black BCERTs Credits | $3.79 | one-time |
| Buy 30 Black BCERTs Credits | $5.69 | one-time |
| Buy 50 Black BCERTs Credits | $9.49 | one-time |
| Buy 75 Black BCERTs Credits | $14.49 | one-time |
| Buy 100 Black BCERTs Credits | $19.00 | one-time |
| Buy 125 Black BCERTs Credits | $23.90 | one-time |
| Buy 150 Black BCERTs Credits | $28.49 | one-time |
| Buy 200 Black BCERTs Credits | $38.00 | one-time |
| Buy 5 BCERT Credits | $100.00 | one-time |


## Frequently asked questions

### Is APEX Machine Maintenance Tool free?

APEX Machine Maintenance Tool is free to download, with no in-app purchases.

### Is DomainCERTin free?

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

### Do APEX Machine Maintenance Tool or DomainCERTin have ads?

Neither APEX Machine Maintenance Tool nor DomainCERTin shows ads.

### Which is updated more often, APEX Machine Maintenance Tool or DomainCERTin?

APEX Machine Maintenance Tool ships an update every 3 months, and DomainCERTin monthly. Most recently, APEX Machine Maintenance Tool was updated on October 18, 2026 and DomainCERTin on October 7, 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.*