Comparison

NumDuel vs WhoMaster

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

Head to head
About

NumDuel

A trivia game where you guess numerical answers to questions, earning points based on your proximity to the correct value. Compete against friends or random opponents in multiple rounds across various categories, or play solo to learn about the world through numbers.

Highlights
  • Guess numerical answers
  • Score based on proximity
  • Play against friends
  • Play against random opponents
  • Multiple game rounds
  • Over 10 trivia categories
  • Solo play mode
Features
Read full description

NumDuel is a trivia quiz game in which there is no right or wrong. You don’t choose between different answer options; rather, you guess the answer to the question and get points depending how close you are to the correct answer. If this wouldn’t be fun enough, you play the game against your friends or random opponents, whoever you prefer. A very simple example question is: “How many people live in the USA” If you guess 250 million and the correct answer is 328 million, your score is 76 out of 100 points. The game consists of five rounds, each with three questions per player, and you can choose questions from over 10 different categories, ranging from science to entertainment. The goal is to have a higher score than your opponent. You can of course also play alone and enjoy learning about our world in numbers.

About

WhoMaster

Test your knowledge of Doctor Who with this fast-paced trivia app. It features over 1,700 questions across all eras, with modes for practice and hosting your own quiz nights. The app is completely free to play.

Highlights
  • Over 1,700 Doctor Who trivia questions
  • Questions grouped by era
  • Practice Mode with timed questions
  • Tournament Mode for quiz nights
  • Completely free to play
  • Optional tip jar for support
Features
Read full description

Think you know your Daleks from your Cybermen? Put your Time Lord knowledge to the test in Who Master — a fast-paced quiz covering monsters, companions, planets, villains and classic stories from every era of Doctor Who, with over 1,700 questions grouped by era. Completely free — no ads, no accounts, nothing locked behind a purchase. There's an optional tip jar if you'd like to support development. Hosting a pub quiz or a family quiz night? Tournament Mode lets you pick an era and read ten questions aloud to your teams, then reveal each answer when everyone has written theirs down — no timer, no scoring, just a proper quiz night. In Practice Mode you have 15 seconds per question. Choose from four answers, or pass if you're stuck. Get it right and earn a point; get it wrong and lose one. At the end, see exactly how many you got correct, incorrect and passed — then try to beat your high score. Doctor Who™ and related marks are owned by the BBC. This is an unofficial, fan-made trivia app and is not endorsed by the BBC or any Doctor Who entity.

Screenshots

NumDuel4 screens
WhoMaster4 screens

Verdict

The call

The clearest difference is rating: NumDuel at 5.0 against WhoMaster's 4.0. NumDuel also leads on in-app purchases (none vs 1) and update cadence (every 2 days vs weekly). WhoMaster's advantage is ads (none vs shown). On price, review sentiment, ratings volume 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. WhoMaster sells 1 one-off in-app purchase. NumDuel asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

NumDuel holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

NumDuel ships an update every 2 days, WhoMaster weekly. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

Scorecard6 real differences · 4 level
NumDuel versus WhoMaster: the parameters behind the verdict, then further details
ParameterNumDuelWhoMaster
PriceFreeFree
Rating5.0 (1 ratings) — better4.0 (1 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings11
Update frequencyEvery 2 days — betterWeekly
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supportedFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better16.0
Further details — not scored
Size24 MB13 MB
Age rating4+4+
DeveloperBenjamin RaabeGary Watson

Customer experience

NumDuel

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

WhoMaster

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

NumDuel

No in-app purchases

1 purchases

WhoMaster

One-time1
  • donation$0.99

Questions

Is NumDuel free?
NumDuel is free to download, with no in-app purchases.
Is WhoMaster free?
WhoMaster is free to download, with in-app purchases available.
Which has better reviews, NumDuel or WhoMaster?
NumDuel is rated higher. NumDuel averages 5.0 out of 5 from 1 ratings, while WhoMaster averages 4.0 from 1 ratings.
Do NumDuel or WhoMaster have ads?
NumDuel shows ads; WhoMaster does not.
Which is updated more often, NumDuel or WhoMaster?
NumDuel ships an update every 2 days, and WhoMaster weekly. Most recently, NumDuel was updated on November 3, 2026 and WhoMaster on November 5, 2026.

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