# slydial vs Thornby

The clearest difference is update cadence: Thornby at daily against slydial's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. slydial sells 3 in-app purchases, starting at $2.99 per month and Thornby sells 3 in-app purchases, starting at $69.99 per year. Whichever you choose, the download price is not the number that matters.

slydial ships an update every 4 months, Thornby daily. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | slydial | Thornby |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (522 ratings)](https://appshunter.io/ios/app/slydial/id295767899/reviews)** | — |
| Number of ratings | **522** | — |
| Positive reviews | 29.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 12 MB |
| Requires iOS | 17 | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [MobileSphere, Ltd](https://appshunter.io/developer/295767902) | [NicRya, Inc.](https://appshunter.io/developer/6812923776) |

## What reviewers say

### slydial

[App page](https://appshunter.io/ios/app/slydial/id295767899)

This app allows you to send personalized voice messages directly to someone's voicemail, bypassing the need for a live conversation. It's designed for quick, efficient communication when you don't have time to talk or wish to avoid interrupting. Features include group messaging and hands-free Siri integration.

**Highlights:** Direct to voicemail messaging, Group voicemail sending, Hands-free Siri integration, Personalized voice messages, Time-saving communication

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly Plan | $2.99 | per month |
| Premium Annual Plan | $29.99 | per year |
| Premium Group slydial | $9.99 | one-time |

**What reviewers like**

- 👍 Very convenient for leaving messages
- 👍 Simple and easy to use
- 👍 Works as advertised (for some)
- 👍 Great for work and personal life
- 👍 Useful for avoiding long conversations

**What reviewers complain about**

- ❌ Does not work for many users
- ❌ Calls go through instead of voicemail
- ❌ App is unreliable and inconsistent
- ❌ Login/registration errors
- ❌ Annoying and long ads

**Reported bugs**

- App no longer works for many users
- Login/registration errors
- Numbers are marked as invalid
- Calls ring instead of going to voicemail
- App crashes or freezes

**Requested features**

- Extension option for dialing
- Ability to see called numbers history
- Dark mode option
- Option to record and send messages directly from iPhone


### Thornby

[App page](https://appshunter.io/ios/app/thornby/id6812923774)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro, yearly | $69.99 | per year |
| Reports | $39.99 | one-time |
| Pro, Forever | $179.99 | one-time |


## Frequently asked questions

### Is slydial free?

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

### Is Thornby free?

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

### Do slydial or Thornby have ads?

Neither slydial nor Thornby shows ads.

### Which is updated more often, slydial or Thornby?

slydial ships an update every 4 months, and Thornby daily. Most recently, slydial was updated on November 6, 2026 and Thornby on October 31, 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.*