# A2Z Groups vs KOERFER

The clearest difference is in-app purchases: KOERFER at none against A2Z Groups's 5. KOERFER also leads on iOS requirement (13.0 vs 16.0). A2Z Groups's advantage is device support. On price there is nothing between them.

Both are free to download. A2Z Groups sells 4 in-app purchases, starting at $0.99 per year. KOERFER asks for nothing beyond the download.

## The numbers

| Metric | A2Z Groups | KOERFER |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (3.9K ratings)](https://appshunter.io/ios/app/a2z-groups/id622492105/reviews)** | — |
| Number of ratings | **3.9K** | — |
| Positive reviews | 81.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 3 weeks | — |
| Monetization | Subscription | — |
| Size | 17 MB | 83 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | **iPhone, iPad** | — |
| Age rating | 4+ | 4+ |
| Developer | [Playa Apps](https://appshunter.io/developer/449814913) | [Koerfer'sche Verwaltungsgesellschaft mbH](https://appshunter.io/developer/1627680063) |

## What reviewers say

### A2Z Groups

[App page](https://appshunter.io/ios/app/a2z-groups/id622492105)

Manage your contacts and send messages or emails to groups efficiently. Organize contacts, create custom groups, and send personalized mass communications. Features include backups, birthday reminders, and contact sharing.

**Highlights:** Create and manage contact groups, Send mass texts and group emails, Backup and restore contacts, Birthday and anniversary notifications, Share and export contacts, Clone contacts and groups

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (1 Year) | $0.99 | per year |
| Premium (Lifetime Access) | $1.99 | one-time |
| Make Contribution | $4.99 | one-time |
| Larger Contribution | $9.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Efficient group messaging
- 💡 Helpful for organizing contacts
- 🔒 Reliable privacy policy
- 👍 Customizable groups

**What reviewers complain about**

- 🐛 Occasional bugs and crashes
- 🐛 Issues with message delivery
- 🐛 Syncing problems after updates
- 🐛 Duplicate contacts
- 🐛 Disappearing notes/data

**Reported bugs**

- Contacts being deleted unexpectedly
- Inability to save contact information
- Syncing issues with Google/Outlook contacts
- Unreliable group messaging

**Requested features**

- Scheduled messaging
- Improved group management
- Better integration with native Contacts app
- Map feature
- Birthdays/anniversaries tracking


### KOERFER

[App page](https://appshunter.io/ios/app/koerfer/id1627680061)

**In-app purchases:** none


## Frequently asked questions

### Is A2Z Groups free?

A2Z Groups is free to download, with in-app purchases available.

### Is KOERFER free?

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

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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.*