# iChecker vs Digiproctor QP Preview

The clearest difference is in-app purchases: Digiproctor QP Preview at none against iChecker's 1. Digiproctor QP Preview also leads on ads (none vs shown). iChecker's advantage is update cadence (every 2 months vs every 13 months) and iOS requirement (9.0 vs 15.5). On price and device support there is nothing between them.

Both are free to download. iChecker sells 1 one-off in-app purchase. Digiproctor QP Preview asks for nothing beyond the download.

iChecker ships an update every 2 months, Digiproctor QP Preview every 13 months. The most recent releases landed on October 12, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | iChecker | Digiproctor QP Preview |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (54 ratings)](https://appshunter.io/ios/app/ichecker-check-storage-memory/id981032667/reviews)** | — |
| Number of ratings | **54** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 13 months |
| Monetization | Free with in-app purchases | — |
| Size | 16 MB | 31 MB |
| Requires iOS | **9.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [泽辉 王](https://appshunter.io/developer/892030257) | [CISO Cybersecurity Private Limited](https://appshunter.io/developer/1459212501) |

## What reviewers say

### iChecker

[App page](https://appshunter.io/ios/app/ichecker-check-storage-memory/id981032667)

Monitor your iOS device's RAM and disk space usage. It also helps manage your contacts by detecting and merging duplicates, and cleaning up empty entries. The app can also find and remove duplicate photos to free up storage.

**Highlights:** Check RAM usage percentage, View free disk space, Detect and merge duplicate contacts, Remove contacts without name/email, Analyze and clean duplicate photos, Refresh data button

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Permanently Remove ads | $1.99 | one-time |


### Digiproctor QP Preview

[App page](https://appshunter.io/ios/app/digiproctor-qp-preview/id1539168718)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iChecker free?

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

### Is Digiproctor QP Preview free?

Digiproctor QP Preview is free to download, with no in-app purchases.

### Do iChecker or Digiproctor QP Preview have ads?

iChecker shows ads; Digiproctor QP Preview does not.

### Which is updated more often, iChecker or Digiproctor QP Preview?

iChecker ships an update every 2 months, and Digiproctor QP Preview every 13 months. Most recently, iChecker was updated on October 12, 2026 and Digiproctor QP Preview on October 10, 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.*