# Callsling vs MassMail

The clearest difference is in-app purchases: Callsling at none against MassMail's 3. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. MassMail sells 3 in-app purchases, starting at $1.99 per month. Callsling asks for nothing beyond the download.

## The numbers

| Metric | Callsling | MassMail |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (7 ratings)](https://appshunter.io/ios/app/callsling/id1567538164/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Ad-supported | — |
| Size | 54 MB | 12 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Dan Klein](https://appshunter.io/developer/1567400747) | [辉章 何](https://appshunter.io/developer/1687027088) |

## What reviewers say

### Callsling

[App page](https://appshunter.io/ios/app/callsling/id1567538164)

This app allows users to send and receive calls and SMS messages over WiFi. It provides call tracking capabilities, linking incoming calls to their source like SEO or websites. The mobile application integrates with a cloud-based system for advanced lead generation and call handling.

**Highlights:** Send and receive calls via WiFi, Send and receive SMS via WiFi, Track calls from SEO and websites, Configure new call tracking numbers, Lead generation call tracking, Advanced call handling

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

**In-app purchases:** none


### MassMail

[App page](https://appshunter.io/ios/app/massmail/id6504375949)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Monthly Subscription | $1.99 | per month |
| Basic Quartely Subscription | $5.99 | per 3 months |
| Basic Yearly Subscription | $19.99 | per year |


## Frequently asked questions

### Is Callsling free?

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

### Is MassMail free?

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

### Do Callsling or MassMail have ads?

Neither Callsling nor MassMail shows ads.

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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.*