# SMTP Lookup vs Boop

The clearest difference is iOS requirement: SMTP Lookup at 12.0 against Boop's 15.1. 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.

## The numbers

| Metric | SMTP Lookup | Boop |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 6 weeks |
| Size | 37 MB | 28 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Paul Barlow](https://appshunter.io/developer/1093150218) | [Adiv Maimon](https://appshunter.io/developer/1838119148) |

## What reviewers say

### SMTP Lookup

[App page](https://appshunter.io/ios/app/smtp-lookup/id6468663395)

**Features:** macOS Compatibility

**In-app purchases:** none


### Boop

[App page](https://appshunter.io/ios/app/boop/id6752117201)

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

**In-app purchases:** none


## Frequently asked questions

### Is SMTP Lookup free?

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

### Is Boop free?

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

### Do SMTP Lookup or Boop have ads?

Neither SMTP Lookup nor Boop 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.*