# SPF Generator vs Lumi

The clearest difference is in-app purchases: SPF Generator at none against Lumi's 1. SPF Generator also leads on iOS requirement (11.0 vs 16.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Lumi sells 1 one-off in-app purchase. SPF Generator asks for nothing beyond the download.

SPF Generator ships an update every 52 months, Lumi every 54 months. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | SPF Generator | Lumi |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 52 months** | Every 54 months |
| Monetization | Free | — |
| Size | 25 MB | 2 MB |
| Requires iOS | **11.0** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Zluck Solutions](https://appshunter.io/developer/1093796022) | [Kazumasa Matsushita](https://appshunter.io/developer/1569771331) |

## What reviewers say

### SPF Generator

[App page](https://appshunter.io/ios/app/spf-generator/id1291826502)

This free utility helps you create Sender Policy Framework (SPF) records for your domains. It simplifies the process of defining authorized email sources to combat spam and prevent forged emails. The app offers default settings for basic needs and allows for quick generation of these essential DNS records.

**Highlights:** Generate SPF records, Combat spam, Prevent forged email, Default settings for simplicity, Quick DNS record creation, Supports multiple domains

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

**In-app purchases:** none


### Lumi

[App page](https://appshunter.io/ios/app/lumi-det/id1569771329)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support max 10 devices | $2.99 | one-time |


## Frequently asked questions

### Is SPF Generator free?

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

### Is Lumi free?

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

### Do SPF Generator or Lumi have ads?

Neither SPF Generator nor Lumi shows ads.

### Which is updated more often, SPF Generator or Lumi?

SPF Generator ships an update every 52 months, and Lumi every 54 months. Most recently, SPF Generator was updated on November 3, 2026 and Lumi on October 27, 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.*