Comparison

Flashcards World vs Say BOOM!

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

Head to head
About

Flashcards World

Features
Read full description

Flashcards World is an interactive educational app perfect for all ages! This app offers a fun way to learn the names of planets, professions, and shapes. Each image is accompanied by a sound that tells you the name of the object when clicked, making learning more enjoyable and easy to understand. With Flashcards World, children and adults can explore the galaxy, learn about various professions, and understand different shapes through engaging Flashcards. This app is one of the best Flashcards for kids, designed to expand knowledge through clear and easy-to-understand Flashcards sound. Why choose Flashcards World? This app offers several standout features: Flashcards for learning the names of planets, professions, and shapes. Fun and educational Flashcards sound. Included in the Best Education app category, combining entertainment and education. A Learning App that helps children explore the world around them. Focus on Flashcards for learning without ad interruptions. This app is ideal for parents looking to provide a fun and interactive learning experience for their children. With various categories, from the galaxy to professions and shapes, Flashcards World is the best choice for kids and families. Flashcards World is available as a paid app, but you won't regret purchasing it! Users are guaranteed to enjoy every moment, as it’s not only engaging but also educational. The app is fully dedicated to entertainment and learning, giving users a unique learning experience. Download now and experience the benefits of this interactive Flashcards World app. Explore the galaxy, learn about professions, and discover new shapes every day! This is the Best app for kids to help children learn in a fun way.

About

Say BOOM!

This app introduces children to musical instruments through interactive learning. Kids can swipe through instrument photos, hear their names spoken, listen to real sounds, and record themselves to practice pronunciation. It offers a fun and educational way to build vocabulary and appreciation for music.

Highlights
  • Interactive instrument discovery
  • Clear pronunciation of instrument names
  • Real instrument sound samples
  • Speech recording and comparison
  • Over 80 instruments to explore
  • Offline functionality
Features
Read full description

Introduce your child to the wonderful world of music! This app is the perfect learning companion for curious kids. Swipe through beautiful instrument photos, hear their names spoken clearly, listen to real instrument sounds, and record yourself saying the names to compare! INTERACTIVE LEARNING • Tap to hear instrument names pronounced clearly • Listen to real instrument sounds • Record yourself saying the name • Compare your recording to the original • Visual feedback encourages participation 80+ INSTRUMENTS TO DISCOVER Start with 15 free instruments, then explore 5 themed expansion packs: • Strings - guitars, violins, cellos, and stringed instruments • Percussion - drums, xylophones, and rhythm instruments • Woodwinds - flutes, clarinets, and wind instruments • Brass - trumpets, trombones, and horns • World & Folk - unique instruments from cultures around the globe DESIGNED FOR KIDS • Simple swipe navigation perfect for little fingers • No ads or distractions • Kid-friendly instrument photography • Works offline after download PERFECT FOR • Building vocabulary and pronunciation • Learning about music and instruments • Speech practice and imitation • Developing an appreciation for music • Quality screen time that's actually educational • Car rides, waiting rooms, and quiet time At home or on the go, we turn screen time into learning time. Watch your child light up as they discover new instruments and practice their sounds!

Screenshots

Flashcards World4 screens
Say BOOM!4 screens

Verdict

The call

The clearest difference is price: Say BOOM! at Free against Flashcards World's $0.99. Say BOOM! also leads on update cadence (fortnightly vs every 24 months). Flashcards World's advantage is in-app purchases (none vs 6). On ads, 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

Say BOOM! is free to download; Flashcards World costs $0.99 up front. Say BOOM! sells 6 one-off in-app purchases. Flashcards World asks for nothing beyond the download.

UpkeepUpdate frequency

Flashcards World ships an update every 24 months, Say BOOM! fortnightly. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
Flashcards World versus Say BOOM!: the parameters behind the verdict, then further details
ParameterFlashcards WorldSay BOOM!
Price$0.99Free — better
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 24 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size19 MB22 MB
Age rating4+4+
DeveloperRima AnggraeniThings4Kids LLC

In-app purchases

None

Flashcards World

No in-app purchases

6 purchases

Say BOOM!

One-time6
  • Brass$0.99
  • Woodwinds$0.99
  • Percussion$0.99
Show 3 more
  • Strings$0.99
  • World & Folk$0.99
  • All Instruments Bundle$3.99

Questions

Is Flashcards World free?
Flashcards World costs $0.99, with no in-app purchases.
Is Say BOOM! free?
Say BOOM! is free to download, with in-app purchases available.
Do Flashcards World or Say BOOM! have ads?
Neither Flashcards World nor Say BOOM! shows ads.
Which is updated more often, Flashcards World or Say BOOM!?
Flashcards World ships an update every 24 months, and Say BOOM! fortnightly. Most recently, Flashcards World was updated on October 25, 2026 and Say BOOM! on October 30, 2026.

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