Comparison

knūmero vs Numfred

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

Head to head
About

knūmero

Master understanding spoken numbers in a new language. Create custom audio lessons to practice numbers, prices, dates, and times. Supports 12 languages with adjustable difficulty.

Highlights
  • Customizable audio lessons
  • Practice numbers, prices, dates, time
  • Adjustable difficulty and speed
  • Repeat numbers as needed
  • Supports 12 languages
  • Reverse language order practice
Features
Read full description

Do you struggle to hear and understand numbers in your new language? Whether it is numbers, prices, dates, or time… the ability to comprehend spoken numbers is often the most overlooked, but critical part of communicating in any language. If this describes you then download knūmero for free! What is knūmero? knūmero is a language learning app designed to help all language learners (new, intermediate, or advanced) practice listening to and understanding numbers in their new language. Why use knūmero? Regardless of what language you speak or the language you are learning, numbers are everywhere! Whether it is your first day learning Spanish, paying for a baguette in France, or taking a taxi in Tokyo, hearing and comprehending numbers in a new language is challenging for language learners and travelers around the world. How knūmero works… With knūmero you can create unlimited and fully customizable audio lessons that play numbers in both your new and native languages. New language learners can start with easy numbers (0 – 9), played slowly, and in order. Intermediate and advanced language learners can practice more challenging numbers (1,000 – 10,000) and adjust difficulty by using smaller multiples and faster speed. knūmero can play numbers in your new language two times for improved retention while allowing you to repeat any number as many times as you like. Multiples are the perfect way to adjust skill level. For any number range in knūmero, you can practice easier numbers (10,000… 11,000) or more difficult numbers (10,150… 11,745). You can also reverse the language order in knūmero. Listen to numbers in your new language first, then practice listening to numbers in your native language and translate them. Practice numbers between 12 languages… knūmero supports Spanish (Latin America and Spain), French, Italian, Portuguese, English, German, Russian, Chinese (Mandarin), Japanese, Korean, Hindi, and Arabic. With knūmero you can practice between any supported languages. A French student can practice numbers in Portuguese while a German engineer can practice numbers in Mandarin. With just a few minutes of practice every day, your ability to hear and comprehend numbers can rapidly improve with knūmero! Download the app and get started today! Free Download and In-App Purchase: knūmero is available as a free download with access to all supported languages. The free version provides limited access to certain number ranges and multiples that can be used to create custom audio lessons. knūmero offers a one-time in-app purchase option that provides complete access to all features in the app (including all number ranges and multiples) that can be used to create custom audio lessons. Terms of Service: https://www.knumero.com/termsofservice Privacy Policy: https://www.knumero.com/privacypolicy Email us at support@knumero.com with any feedback or questions.

About

Numfred

This app helps users improve their ability to recognize spoken numbers in 13 languages. It offers two learning modes: listening and typing, or typing and listening, with options for offline learning and adjustable difficulty.

Highlights
  • Recognize spoken numbers
  • Practice numbers in 13 languages
  • Listen & Type learning mode
  • Type & Listen learning mode (Premium)
  • Offline learning
  • Adjustable voice speed (Premium)
Features
Read full description

Numfred trains a core skill in language learning: recognizing spoken numbers with confidence. Perfect for language courses, work, and school. Boost your listening comprehension and learn numbers in 15 languages: English, Spanish, French, Chinese, German, Italian, Japanese, Korean, Russian, Portuguese, Swedish, Dutch, Turkish, Polish, and Czech. Learning Mode 1 “Listen & Type” Hear a number, type it. Got it right? The next one appears instantly—an easy, game-like flow with quick wins for beginners and advanced learners. Learning Mode 2 „Type & Listen“ (Premium) Type any number and hear how it’s pronounced. Use the Step button to practice in increments of 1, 10, 100, or 1,000—ideal for beginners and for rapid drills in specific number ranges. Try it now: Download Numfred and try Basic with no time limit or sign-up required. Basic - Learn numbers in 15 languages - Learning Mode 1 “Listen & Type” (three skill levels) - Limited number ranges - Learn offline - No ads Premium (one-time purchase, no subscription) - Learn numbers in 15 languages - Learning Mode 1 “Listen & Type” (three skill levels) - Learning Mode 2 „Type & Listen“ - Extended number ranges up to 999,999 - Adjustable voice speed - Configurable digit grouping (3-digit or 4-digit/myriads) - Custom number separators - Learn offline - No ads

Screenshots

knūmero4 screens
Numfred4 screens

Verdict

The call

The clearest difference is rating: knūmero at 4.3 against Numfred's 4.0. knūmero also leads on ratings volume (7 vs 1) and device support (3 vs 1). On price, update cadence, ads and in-app purchases 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. knūmero sells 1 one-off in-app purchase and Numfred sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

knūmero holds the better App Store score, 4.3 against 4.0. That said, the two scores are not equally well evidenced: knūmero has 7 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

knūmero ships an update every 2 months, Numfred every 6 weeks. The most recent releases landed on October 4, 2026 and October 15, 2026 respectively.

Scorecard4 real differences · 6 level
knūmero versus Numfred: the parameters behind the verdict, then further details
ParameterknūmeroNumfred
PriceFreeFree
Rating4.3 (7 ratings) — better4.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings7 — better1
Update frequencyEvery 2 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS8.0 — better18.0
Further details — not scored
Size41 MB40 MB
Age rating4+4+
DeveloperAscesa CorporationFrank Benkelmann

Customer experience

knūmero

All ratings7 ratings
Positive85.7%
Neutral0.0%
Negative14.3%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Numfred

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

knūmero

One-time1
  • Knūmero Premium$0.99
1 purchases

Numfred

One-time1
  • Premium$9.99

Questions

Is knūmero free?
knūmero is free to download, with in-app purchases available.
Is Numfred free?
Numfred is free to download, with in-app purchases available.
Which has better reviews, knūmero or Numfred?
knūmero is rated higher. knūmero averages 4.3 out of 5 from 7 ratings, while Numfred averages 4.0 from 1 ratings.
Do knūmero or Numfred have ads?
Neither knūmero nor Numfred shows ads.
Which is updated more often, knūmero or Numfred?
knūmero ships an update every 2 months, and Numfred every 6 weeks. Most recently, knūmero was updated on October 4, 2026 and Numfred on October 15, 2026.

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