# CPU vs STOA Maintech

The clearest difference is in-app purchases: STOA Maintech at none against CPU's 1. STOA Maintech also leads on ads (none vs shown) and rating (5.0 vs 4.7). CPU's advantage is update cadence (fortnightly vs every 2 months) and ratings volume (114 vs 4). On price and device support there is nothing between them.

Both are free to download. CPU sells 1 one-off in-app purchase. STOA Maintech asks for nothing beyond the download.

STOA Maintech holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: CPU has 114 ratings behind it against 4, so its average is the more settled of the two.

CPU ships an update fortnightly, STOA Maintech every 2 months. The most recent releases landed on October 30, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | CPU | STOA Maintech |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (114 ratings)](https://appshunter.io/ios/app/cpu-x/id6448917309/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/stoa-maintech/id6742714031/reviews)** |
| Number of ratings | **114** | 4 |
| Positive reviews | 61.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 170 MB | 35 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CHENGDU MIAOZHI TECHNOLOGY CO., LTD.](https://appshunter.io/developer/1465440799) | [Stoa Technologies](https://appshunter.io/developer/1799570324) |

## What reviewers say

### CPU

[App page](https://appshunter.io/ios/app/cpu-x/id6448917309)

This app provides detailed insights into your device's hardware and real-time diagnostics. It also offers tools to optimize storage by compressing media and cleaning contacts, along with a comprehensive suite for testing device sensors and network functions.

**Highlights:** Comprehensive device hardware insights, Real-time diagnostics and sensor testing, Video and image compression, Duplicate contact cleanup, Junk mail and spam message filtering, Network diagnostics tools

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Premium | $5.99 | one-time |


### STOA Maintech

[App page](https://appshunter.io/ios/app/stoa-maintech/id6742714031)

Report maintenance issues quickly by submitting a photo and description. Service technicians are dispatched to your location for repairs.

**Highlights:** Submit maintenance requests, Attach photos to requests, Brief description of issue, Service technician dispatch, On-site repair services

**In-app purchases:** none


## Frequently asked questions

### Is CPU free?

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

### Is STOA Maintech free?

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

### Which has better reviews, CPU or STOA Maintech?

STOA Maintech is rated higher. CPU averages 4.7 out of 5 from 114 ratings, while STOA Maintech averages 5.0 from 4 ratings.

### Do CPU or STOA Maintech have ads?

CPU shows ads; STOA Maintech does not.

### Which is updated more often, CPU or STOA Maintech?

CPU ships an update fortnightly, and STOA Maintech every 2 months. Most recently, CPU was updated on October 30, 2026 and STOA Maintech on October 11, 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.*