Subnet Plus vs ScratchPads
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Subnet Plus
Calculate IP subnets with ease on your iPhone or iPad. This tool helps visualize binary and hex information for subnets, aiding in network studies and professional calculations. Save your calculated networks for future reference.
- Subnet calculation
- Save calculated networks
- Binary and hex display
- Network address ranges
- Broadcast IP addresses
- Study aid for networking exams
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Subnet Plus is a fast, beautiful subnet calculator for network engineers, sysadmins, and students — now completely rebuilt for iPhone and iPad. Type any IPv4 or IPv6 address and instantly see the network address, broadcast, usable host range, subnet mask, wildcard mask, prefix length, total and usable hosts, IP class, and address type. A live prefix stepper lets you dial the mask up or down and watch every value update in real time. NETWORK CALCULATIONS • IPv4 and IPv6, auto-detected • Binary view with network/host bits color-coded • Visual address-space map PRO TOOLS • VLSM Designer — carve a network into right-sized subnets and save the plan • CIDR to subnet mask to wildcard converter • Subnet membership — is an address inside a network? • Range to CIDR, and supernet / aggregate • CIDR cheat sheet NETWORK UTILITIES • DNS Lookup — A, AAAA, MX, NS, TXT, CNAME, SOA, SRV, and reverse PTR — using your device's resolver or any IPv4/IPv6 DNS server you add • Ping — round-trip time and packet loss • Traceroute — see the path to any host • Path Monitor (Pro) — a live, MTR-style traceroute with per-hop packet loss and latency • Network Scanner (Pro) — find the active devices on your local network, their names, and open ports • Email Auth — check a domain's SPF, DKIM, and DMARC records SIRI, WIDGETS & APPLE INTELLIGENCE • Explain this — turn any subnet calculation or Email Auth report into a plain-English explanation, generated on-device by Apple Intelligence • Siri & Shortcuts — calculate a subnet, ping a host, check a port, or ask "What's my network?" by voice, and use the same actions in your own Shortcuts • Live Activities — follow Path Monitor and Network Scanner from the Lock Screen and Dynamic Island • Home Screen widget — pin any saved subnet, with a different subnet per widget SAVE & SYNC • Label and save subnets, VLSM plans, and lookups • Everything syncs across your devices with iCloud • Share and export your results Available in 45 languages. Remove ads with a one-time in-app purchase.
ScratchPads
Quickly jot down notes and have them automatically saved. This utility app offers multiple scratch pads for easy organization and instant recall of your thoughts. Simply close the app to save your work.
- Multiple scratch pads
- Automatic note saving
- Quick text deletion
- Restores last active pad
- Simple interface
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Very simplistic utility app to allow for scratch pad notes to be quickly added and automatically saved. USE: Open app, select one of the "Pads", and record scratch pad notes. To clear a pad, tap the trash icon in the upper right side of the screen and then confirm to delete the pad text. To save the text, just close the app. FEATURES: Five different "Pads" to store scratch pad notes. Delete all text on a Pad with two taps. Scratch pad notes are automatically saved when the app is closed, and restored the next time the app is opened. The last active Pad tab is saved when the app is closed, and restored the next time the app is opened.
Screenshots
Verdict
The clearest difference is price: Subnet Plus at Free against ScratchPads's $0.99. Subnet Plus also leads on update cadence (every 2 weeks vs every 10 months) and ratings volume (54 vs 1). ScratchPads's advantage is in-app purchases (none vs 1) and ads (none vs shown). On 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
Subnet Plus is free to download; ScratchPads costs $0.99 up front. Subnet Plus sells 1 one-off in-app purchase. ScratchPads asks for nothing beyond the download.
ScratchPads holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Subnet Plus has 54 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 89% of Subnet Plus's written reviews are positive against 100% of ScratchPads's.
Subnet Plus ships an update every 2 weeks, ScratchPads every 10 months. The most recent releases landed on October 12, 2026 and September 26, 2026 respectively.
| Parameter | Subnet Plus | ScratchPads |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.6 (54 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 89.2% of reviews | 100.0% of reviews — better |
| Number of ratings | 54 — better | 1 |
| Update frequency | Every 2 weeks — better | Every 10 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 12 MB | 0 MB |
| Age rating | 4+ | 4+ |
| Developer | Ted Trentler | Thomas Dalke |
Customer experience
Subnet Plus
ScratchPads
Bugs and requests
Subnet Plus
Reported bugs
8 issues- Text in subnet netmask field too large, last octet not visible
- Values truncated, cannot view full values
- Subnet mask and IP addresses truncated
- Cannot read all data
- Numbers truncated on iPhone 5s
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- Fields populated by app cannot be expanded
- Screen cannot fit full mask on iPad
- Calculation for number of subnets may be incorrect
Requested features
5 requests- Export option to share saved subnets
- Pay to remove ads
- Landscape mode for iPad Pro
- Update for visualising or adjusting screen on iOS 9
- Ability to type netmask
ScratchPads
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Subnet Plus
- remove Ads$4.99
ScratchPads
No in-app purchases
Questions
Is Subnet Plus free?
Is ScratchPads free?
Which has better reviews, Subnet Plus or ScratchPads?
Do Subnet Plus or ScratchPads have ads?
Which is updated more often, Subnet Plus or ScratchPads?
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