Comparison

Subnet Plus vs M2M Data Controller

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Subnet calculation
  • Save calculated networks
  • Binary and hex display
  • Network address ranges
  • Broadcast IP addresses
  • Study aid for networking exams
Features
Read full description

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.

About

M2M Data Controller

Features
Read full description

With M2M Data Controller app you can stay connected and manage your sims at your finger tips.

Screenshots

Subnet Plus4 screens
M2M Data Controller4 screens

Verdict

The call

The clearest difference is in-app purchases: M2M Data Controller at none against Subnet Plus's 1. M2M Data Controller also leads on ads (none vs shown) and iOS requirement (11.0 vs 26.0). Subnet Plus's advantage is update cadence (every 2 weeks vs every 3 months). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Subnet Plus sells 1 one-off in-app purchase. M2M Data Controller asks for nothing beyond the download.

UpkeepUpdate frequency

Subnet Plus ships an update every 2 weeks, M2M Data Controller every 3 months. Both last shipped on October 4, 2026.

Scorecard4 real differences · 6 level
Subnet Plus versus M2M Data Controller: the parameters behind the verdict, then further details
ParameterSubnet PlusM2M Data Controller
PriceFreeFree
Rating4.6 (54 ratings) — better—
Positive reviews89.2% of reviews—
Number of ratings54 — better—
Update frequencyEvery 2 weeks — betterEvery 3 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.011.0 — better
Further details — not scored
Size12 MB71 MB
Age rating4+4+
DeveloperTed TrentlerM2M DATA GROUP LIMITED

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
Show 3 more
  • 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

M2M Data Controller

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Subnet Plus

One-time1
  • remove Ads$4.99
None

M2M Data Controller

No in-app purchases

Questions

Is Subnet Plus free?
Subnet Plus is free to download, with in-app purchases available.
Is M2M Data Controller free?
M2M Data Controller is free to download, with no in-app purchases.
Do Subnet Plus or M2M Data Controller have ads?
Subnet Plus shows ads; M2M Data Controller does not.
Which is updated more often, Subnet Plus or M2M Data Controller?
Subnet Plus ships an update every 2 weeks, and M2M Data Controller every 3 months. Most recently, Subnet Plus was updated on October 4, 2026 and M2M Data Controller on October 4, 2026.

Other comparisons