# String vs Zonitel

The clearest difference is rating: Zonitel at 5.0 against String's 3.5. Zonitel also leads on review sentiment (100% vs 69%) and monetization model (free vs free with in-app purchases). String's advantage is ratings volume (62 vs 14). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Zonitel holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 62 and 14 respectively. Written reviews point the same way: 69% of String's written reviews are positive against 100% of Zonitel's.

String ships an update every 2 months, Zonitel fortnightly. Both last shipped on October 24, 2026.

## The numbers

| Metric | String | Zonitel |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (62 ratings)](https://appshunter.io/ios/app/string-modern-phone-inbox/id1445655431/reviews) | **[5.0 (14 ratings)](https://appshunter.io/ios/app/zonitel/id1542723320/reviews)** |
| Number of ratings | **62** | 14 |
| Positive reviews | 68.6% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 68 MB | 57 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NumberBarn, LLC](https://appshunter.io/developer/1031383867) | [Zonitel Solutions LLC](https://appshunter.io/developer/1542723322) |

## What reviewers say

### String

[App page](https://appshunter.io/ios/app/string-modern-phone-inbox/id1445655431)

Enhance customer engagement with a business SMS and voice platform. Organize your inbox, automate responses, and manage contacts efficiently. Send personalized messages to individuals or groups, and access your workflow from any device.

**Highlights:** Use existing or new phone numbers, Organize inbox with sales funnel view, Automated responses and auto-replies, Contact management and CRM integrations, 1-1, group, and mass messaging, Templates and voicemail transcription, Browser and mobile app access

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

**In-app purchases:** none


### Zonitel

[App page](https://appshunter.io/ios/app/zonitel/id1542723320)

This business communication app allows users to manage calls, texts, and faxes from a single platform. It offers features like call history, recordings, unlimited domestic calls, and business messaging. Users can send and receive faxes directly through the application.

**Highlights:** Call history and recordings, Unlimited domestic calls, Business text messaging, Send and receive faxes, Unified communication platform

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

**In-app purchases:** none


## Frequently asked questions

### Is String free?

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

### Is Zonitel free?

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

### Which has better reviews, String or Zonitel?

Zonitel is rated higher. String averages 3.5 out of 5 from 62 ratings, while Zonitel averages 5.0 from 14 ratings.

### Do String or Zonitel have ads?

Neither String nor Zonitel shows ads.

### Which is updated more often, String or Zonitel?

String ships an update every 2 months, and Zonitel fortnightly. Most recently, String was updated on October 24, 2026 and Zonitel 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.*