# ONE Pro vs Charm

The clearest difference is review sentiment: ONE Pro at 100% against Charm's 33%. Charm's advantage is update cadence (weekly vs every 5 weeks) and iOS requirement (15.0 vs 18.6). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. ONE Pro sells 2 in-app purchases, starting at $7.99 per month and Charm sells 8 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

ONE Pro ships an update every 5 weeks, Charm weekly. Both last shipped on October 24, 2026.

## The numbers

| Metric | ONE Pro | Charm |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (73 ratings)](https://appshunter.io/ios/app/charm-save-formulas-and-clients/id1467161766/reviews)** |
| Number of ratings | — | **73** |
| Positive reviews | **100.0% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 17 MB | 70 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Applications de coiffure one inc.](https://appshunter.io/developer/1242581934) | [UAB COLOURIST GUIDE](https://appshunter.io/developer/1032460737) |

## What reviewers say

### ONE Pro

[App page](https://appshunter.io/ios/app/one-pro/id1248093445)

Manage salon schedules, appointments, and client files efficiently. This app is designed for hairstylists and salon teams using L’Oréal Professionnel products, offering integrated tools for services and product management.

**Highlights:** Appointment management with reminders, Client file management with history and photos, Technical service management, Optimized screens for colorists, Team coordination, iCloud synchronization

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Level 1 | $7.99 | per month |
| Level 2 | $9.99 | per month |


### Charm

[App page](https://appshunter.io/ios/app/charm-save-formulas-and-clients/id1467161766)

Manage client information, hair color formulas, and appointment details for beauty professionals. Save client visit history, photos, and pricing to streamline salon operations and enhance client satisfaction. Access your data securely from any mobile device.

**Highlights:** Client profile management, Hair color formula saving and editing, Photo albums for client work, Service pricing and product tracking, Client birthday reminders, Public hairstyle inspiration gallery

**Features:** Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium monthly subscription | $3.99 | per month |
| Premium monthly subscription | $5.99 | per month |
| Premium monthly subscription | $7.99 | per month |
| Premium yearly subscription | $34.99 | per year |
| Premium yearly subscription | $45.99 | per year |
| Premium yearly subscription | $79.99 | per year |
| Premium yearly subscription | $79.99 | per year |
| Premium Lifetime Access | $149.99 | one-time |


## Frequently asked questions

### Is ONE Pro free?

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

### Is Charm free?

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

### Do ONE Pro or Charm have ads?

Neither ONE Pro nor Charm shows ads.

### Which is updated more often, ONE Pro or Charm?

ONE Pro ships an update every 5 weeks, and Charm weekly. Most recently, ONE Pro was updated on October 24, 2026 and Charm on October 24, 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.*