Comparison

MyNumberBlocker vs Plain Units

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

Head to head
About

MyNumberBlocker

Block unwanted calls from numbers that share the same prefix as your own. This utility prevents telemarketers from spoofing caller IDs to trick you into answering. It ensures your contacts are not blocked and your call logs remain private.

Highlights
  • Block calls by phone number prefix
  • Prevents caller ID spoofing
  • Excludes contacts from blocking
  • Sends blocked calls to voicemail
  • Does not send contacts to server
Read full description

Stop unwanted phone calls! Have you started getting spam calls from phone numbers that resemble yours? If so, then MyNumberBlocker is for you! Simply enter your phone number and MyNumberBlocker blocks all numbers that have the same prefix as your phone number. Telemarketers use every game in the book to get you to answer your phone. This latest one is to trick you into believing that a friend or someone near you is calling you by spoofing the caller ID. There is currently no other way to stop these calls. Notes: • MyNumberBlocker requests access to your Contacts so that it doesn’t blocks contacts with the same phone number prefix. • MyNumberBlocker does NOT send your Contacts to a server nor communicates in a server in any way. • MyNumberBlocker cannot log your calls. • Blocked calls are sent directly to voicemail.

About

Plain Units

Features
Read full description

Simple Unit Converter is a calm, numeric-first converter that gets out of your way. Pick a category, type into any field, and every other unit on the page updates instantly. No account, no sign-in, no clutter. 14 CATEGORIES • Length • Mass • Temperature • Time • Speed • Area • Volume • Digital Storage • Data Transfer Rate • Energy • Frequency • Fuel Economy • Plane Angle • Pressure WHY YOU'LL LIKE IT • Type into any unit, not just a "from" box. Every other unit converts as you type. • All units in a category are visible at once, so you never dig through pickers. • Searchable category grid to jump straight to what you need. • Tap a result to copy a clean, paste-ready value. • Remembers your last category, unit, and value between launches. • Light and dark mode, and works on iPhone and iPad. • Everything runs on your device. No servers, no analytics, no tracking of your conversions. REMOVE ADS The free version shows ads. A one-time purchase removes them forever and restores on all your devices signed in to the same Apple Account.

Screenshots

MyNumberBlocker2 screens
Plain Units4 screens

Verdict

The call

The clearest difference is in-app purchases: MyNumberBlocker at none against Plain Units's 1. MyNumberBlocker also leads on ads (none vs shown) and iOS requirement (13.0 vs 16.4). Plain Units's advantage is update cadence (every 3 weeks vs every 38 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. Plain Units sells 1 one-off in-app purchase. MyNumberBlocker asks for nothing beyond the download.

UpkeepUpdate frequency

MyNumberBlocker ships an update every 38 months, Plain Units every 3 weeks. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
MyNumberBlocker versus Plain Units: the parameters behind the verdict, then further details
ParameterMyNumberBlockerPlain Units
PriceFreeFree
Rating2.5 (2 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 38 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.0 — better16.4
Further details — not scored
Size2 MB48 MB
Age rating4+4+
DeveloperGruby SolutionsNicolaus Lawson

In-app purchases

None

MyNumberBlocker

No in-app purchases

1 purchases

Plain Units

One-time1
  • Remove Ads$3.99

Questions

Is MyNumberBlocker free?
MyNumberBlocker is free to download, with no in-app purchases.
Is Plain Units free?
Plain Units is free to download, with in-app purchases available.
Do MyNumberBlocker or Plain Units have ads?
Plain Units shows ads; MyNumberBlocker does not.
Which is updated more often, MyNumberBlocker or Plain Units?
MyNumberBlocker ships an update every 38 months, and Plain Units every 3 weeks. Most recently, MyNumberBlocker was updated on November 6, 2026 and Plain Units on October 31, 2026.

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