SPF Generator vs ZeroScan
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SPF Generator
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.
- Generate SPF records
- Combat spam
- Prevent forged email
- Default settings for simplicity
- Quick DNS record creation
- Supports multiple domains
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Use this free SPF app to generate the SPF records for your domains. Technically every section is optional, if you're looking for a very simple, basic SPF record, then just keep clicking Next as the defaults will work for most simple mail server. SPF generator generate an SPF record that advertises what sources are legitimately allowed to originate email for your domain names. It is useful for distancing yourself from forged email with your domain. Quickly create SPF Records - Sender Policy Framework, to your DNS using our SPF Generator App. Sender Policy Framework (SPF) is a method of fighting spam. As more time passes, this protocol will be used as one of the standard methods of fighting spam on the Internet. An SPF record is a TXT record that is part of a domain's DNS zone file. The TXT record specifies a list of authorized host names/IP addresses that mail can originate from for a given domain name. Once this entry is placed within the DNS zone, no further configuration is necessary to take advantage of servers that incorporate SPF checking into their anti-spam systems. This SPF record is added the same way as a regular A, MX, or CNAME record.
ZeroScan
Discover network devices and their services effortlessly. This tool listens for broadcasting zeroconf services, displaying IP addresses and open ports without active probing. Customize scan intervals and result display for a seamless network overview.
- Zeroconf (mDNS, DNS-SD, Bonjour) service discovery
- Automatic network rescanning
- Customizable scan intervals
- Adjustable result display duration
- Clipboard copy customization
- Manual service searching
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ZeroScan finds devices on your network that advertise Bonjour (mDNS / DNS-SD / zeroconf) services. It shows each one’s name, IP address, the services it offers and the ports they’re on, without probing your network. See what’s on your network Watches for 85 service types, including SSH, HTTP, AirPlay, printers, HomeKit and file sharing. You can add any other service type in preferences. Icons show what kind of device each one is likely to be: computer, phone, TV, printer, camera, router, storage and more. Shows each service’s TXT record, so you can see model names, firmware versions and device IDs. Results refresh on their own. You choose the rescan interval and how long a device stays listed after it stops advertising. Spot what changed Save a snapshot of a network and name it, like “Home” or “Office.” ZeroScan suggests which saved network you’re probably on. Compare the live scan with any saved snapshot. Devices are marked new, changed or gone, along with the services and ports that were added, removed or moved. “Show Changes Only” hides everything that hasn’t changed. Rename, merge or delete saved networks and snapshots. Take results with you Export the full scan as CSV or JSON. Copy a hostname, IP address or port list in the format you pick. On iOS, open HTTP, HTTPS, SSH and SFTP services directly in the app that handles them. What ZeroScan isn’t ZeroScan isn’t an IP scanner. It listens for devices that announce themselves and never probes addresses. A device that doesn’t advertise one of the services ZeroScan watches for won’t appear. Privacy ZeroScan collects no data and sends nothing off your device. Your snapshots and preferences are saved on the device and nowhere else.
Screenshots
Verdict
The clearest difference is price: SPF Generator at Free against ZeroScan's $0.99. SPF Generator also leads on iOS requirement (11.0 vs 17.0). ZeroScan's advantage is update cadence (every 6 months vs every 52 months). On review sentiment, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
SPF Generator is free to download; ZeroScan costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
SPF Generator ships an update every 52 months, ZeroScan every 6 months. Both last shipped on November 3, 2026.
| Parameter | SPF Generator | ZeroScan |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | — | 5.0 (3 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | — | 3 — better |
| Update frequency | Every 52 months | Every 6 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPod | iPhone, iPad, Mac — better |
| Requires iOS | 11.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 25 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Zluck Solutions | Jordan Parsons |
Customer experience
SPF Generator
ZeroScan
In-app purchases
SPF Generator
No in-app purchases
ZeroScan
No in-app purchases









