Comparison

ConvertNumber vs Universal Numbers

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

Head to head
About

ConvertNumber

Read full description

ConvertNumber is a simple calculator for learning how numbers are written and spoken in different languages. Calculate normally, then see the result written out in the selected language. Tap the written number or press equals to hear it spoken aloud. It is useful for language learners, students, travelers, and anyone curious about number systems. Features: - Calculator-style number entry - Written number results in multiple languages - Spoken pronunciation for the current language - Calculation history for quick reuse - Clean modern interface for everyday practice

About

Universal Numbers

This app helps children and language learners understand numbers through visual representation and interactive exploration. It makes number concepts clear by showing place values, quantities, and the logic of large numbers. Practice counting in over 40 languages with pronunciation support.

Highlights
  • Visual number line exploration
  • Tap to hear number pronunciation
  • Zoom in/out for different counting increments
  • Search for specific numbers
  • Supports 40+ languages for counting practice
  • No ads or data collection
Features
Read full description

We believe numbers aren't hard — they just need to be seen the right way. That's why we built Universal Numbers: a simple visual tool that helps children and language learners truly understand numbers, not just recite them. When kids can see a number, hear it, and feel how it breaks apart, the concept clicks. FOR YOUNG LEARNERS: Most children memorize number sequences without ever grasping what they mean. Universal Numbers changes that by making the structure of numbers visible — place values in color, quantities at a glance, and the logic of big numbers made obvious. From 0 to 1,000,000, on a number line they can scroll and zoom themselves. No pressure. No wrong answers. Just numbers that finally make sense. FOR LANGUAGE LEARNERS: Counting in a new language is one of the last things that feels truly automatic. Practice numbers in English, Spanish, or French — or any of 40+ languages and dialects available — at whatever pace you choose. HOW IT WORKS: • Scroll the number line to explore • Tap any number to hear it pronounced • Zoom in or out to count by 5, 10, 100, or more • Search for any specific number instantly • Choose your language and Apple system voice RANGE: 0 to 1,000,000 LANGUAGES FOR PRACTICE: Explore how numbers are spelled, written, and pronounced in dozens of languages and dialects — without changing your device language. In some, even the numerals look different. Pronunciation plays wherever your device has a matching voice installed, and the language list keeps growing as Apple adds support. PRIVACY: No ads. No accounts. No data collection. STAY IN TOUCH: YouTube, TikTok, X: @GamifyItApps www.gamifyitapps.com/contact

Screenshots

ConvertNumber4 screens
Universal Numbers4 screens

Verdict

The call

The clearest difference is ads: Universal Numbers at none against ConvertNumber's shown. Universal Numbers also leads on update cadence (monthly vs every 8 months). On price, in-app purchases, device support and iOS requirement 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

ConvertNumber ships an update every 8 months, Universal Numbers monthly. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.

Scorecard2 real differences · 8 level
ConvertNumber versus Universal Numbers: the parameters behind the verdict, then further details
ParameterConvertNumberUniversal Numbers
PriceFreeFree
Rating—4.9 (24 ratings) — better
Positive reviews—66.7% of reviews
Number of ratings—24 — better
Update frequencyEvery 8 monthsMonthly — better
AdsYesNo — better
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.6
Further details — not scored
Size14 MB3 MB
Age rating4+4+
DeveloperNEURAL CRAFT LIMITEDGamifyIt

In-app purchases

None

ConvertNumber

No in-app purchases

None

Universal Numbers

No in-app purchases

Questions

Is ConvertNumber free?
ConvertNumber is free to download, with no in-app purchases.
Is Universal Numbers free?
Universal Numbers is free to download, with no in-app purchases.
Do ConvertNumber or Universal Numbers have ads?
ConvertNumber shows ads; Universal Numbers does not.
Which is updated more often, ConvertNumber or Universal Numbers?
ConvertNumber ships an update every 8 months, and Universal Numbers monthly. Most recently, ConvertNumber was updated on November 6, 2026 and Universal Numbers on November 4, 2026.

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