Comparison

Transformation Sentences 2 vs Spark Words

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

Head to head
About

Transformation Sentences 2

Features
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An educational tool to assist in the teaching of sentence structure. Can be used to create cloze exercises and prediction games for students to learn from, with nearby device sharing for easy classroom setup. The sentence creator allows you to change the colours of boxes or have multiple words in a single box. This project is open sourced on GitHub. Icons provided by Icons8.com

About

Spark Words

Features
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Spark Words makes learning sight words fun and easy for young readers! Spark Words covers 400 essential sight words across four progressive word lists โ€” Starter, Explorer, Builder, and Champion โ€” giving every child a clear path from their very first words all the way to confident, fluent reading. LEARN WITH FLASHCARDS Each word is presented on a bright, colourful flashcard with a large, kid-friendly font. Children can tap the word or the speaker icon to hear it pronounced clearly by a natural-sounding voice. Every word comes with an example sentence so kids can understand how the word is used โ€” for example, "The sun is warm." The sight word is highlighted in the sentence so it's easy to spot. FOUR WORD LISTS, 10 LEVELS EACH Start with Starter and work through Explorer, Builder, and Champion as confidence grows. Each list has 10 levels of 10 words, progressing from simple high-frequency words like "I", "and", and "the" to more advanced words like "beautiful", "sentence", and "champion". Kids can mark words as learned along the way, and the progress bar shows which words have been mastered at a glance. QUIZ MODE Ready for a challenge? Each level includes a fun quiz where words appear in random order. A parent or teacher marks whether the child recognises each word correctly. At the end, the quiz shows a score โ€” like 8 out of 10 โ€” along with a list of any words that need more practice. Score a perfect 10 out of 10 and enjoy a spectacular fireworks celebration! FEATURES โ€ข 400 carefully selected sight words across 4 word lists and 40 levels โ€ข Natural-sounding audio for every word and sentence โ€ข Kid-friendly handwriting-style font โ€ข Example sentences to build understanding โ€ข Tap any word to hear its pronunciation โ€ข Mark words as learned and track progress per list โ€ข Quiz mode to test word recognition โ€ข Fireworks reward for perfect scores โ€ข Works in portrait and landscape โ€ข No ads, no in-app purchases, no internet required โ€ข Safe for children โ€” no data collection DESIGNED FOR YOUNG LEARNERS Spark Words uses a clear, rounded handwriting font so letters look the way kids learn to write them. The interface is simple enough for little fingers, and the audio is spoken in a warm, natural Australian English voice at a gentle pace. Whether at home, in the classroom, or on the go, Spark Words helps build the reading foundation every child needs. Download now and watch your little one's confidence grow, one word at a time!

Screenshots

Transformation Sentences 24 screens
Spark Words4 screens

Verdict

The call

The clearest difference is update cadence: Transformation Sentences 2 at every 5 days against Spark Words's every 6 weeks. Transformation Sentences 2 also leads on iOS requirement (11.0 vs 26.2). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Transformation Sentences 2 ships an update every 5 days, Spark Words every 6 weeks. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

Scorecard2 real differences ยท 4 level
Transformation Sentences 2 versus Spark Words: the parameters behind the verdict, then further details
ParameterTransformation Sentences 2Spark Words
PriceFreeFree
Update frequencyEvery 5 days โ€” betterEvery 6 weeks
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS11.0 โ€” better26.2
Further details โ€” not scored
Size11 MB25 MB
Age rating4+4+
DeveloperBryan HathawayMo Fu

In-app purchases

None

Transformation Sentences 2

No in-app purchases

None

Spark Words

No in-app purchases

Questions

Is Transformation Sentences 2 free?
Transformation Sentences 2 is free to download, with no in-app purchases.
Is Spark Words free?
Spark Words is free to download, with no in-app purchases.
Do Transformation Sentences 2 or Spark Words have ads?
Neither Transformation Sentences 2 nor Spark Words shows ads.
Which is updated more often, Transformation Sentences 2 or Spark Words?
Transformation Sentences 2 ships an update every 5 days, and Spark Words every 6 weeks. Most recently, Transformation Sentences 2 was updated on November 2, 2026 and Spark Words on October 31, 2026.

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