# PROG ERP vs Phone Master

The clearest difference is in-app purchases: PROG ERP at none against Phone Master's 2. Phone Master's advantage is update cadence (monthly vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Phone Master sells 2 in-app purchases, starting at $3.99 per 7 days. PROG ERP asks for nothing beyond the download.

PROG ERP ships an update every 4 months, Phone Master monthly. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | PROG ERP | Phone Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (78 ratings)](https://appshunter.io/ios/app/phone-master-clean-storage/id6474995568/reviews)** |
| Number of ratings | — | **78** |
| Positive reviews | — | 30.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | — | Freemium |
| Size | 6 MB | 83 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TING-YANG TSAI](https://appshunter.io/developer/1147076265) | [士菊 张](https://appshunter.io/developer/1680439974) |

## What reviewers say

### PROG ERP

[App page](https://appshunter.io/ios/app/prog-erp/id1153260720)

**In-app purchases:** none


### Phone Master

[App page](https://appshunter.io/ios/app/phone-master-clean-storage/id6474995568)

Optimize your device's storage with tools to clean duplicate and large files, compress media, and manage contacts. Secure your private photos and contacts with a vault feature. Offers tutorials for power saving and cleaning.

**Highlights:** Clean duplicate and similar photos/videos, Compress images and videos, Remove photo GPS metadata, Private photo and contact vault, Backup contacts, Clean clipboard

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly subscription | $3.99 | per 7 days |
| life membership | $14.99 | one-time |


## Frequently asked questions

### Is PROG ERP free?

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

### Is Phone Master free?

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

### Do PROG ERP or Phone Master have ads?

Neither PROG ERP nor Phone Master shows ads.

### Which is updated more often, PROG ERP or Phone Master?

PROG ERP ships an update every 4 months, and Phone Master monthly. Most recently, PROG ERP was updated on October 29, 2026 and Phone Master on October 30, 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.*