Rainbow Sentences vs Fraction Builder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Rainbow Sentences
This app uses color-coded visual cues to help students construct grammatically correct sentences. It breaks down sentence parts like who, what, and where, allowing users to build and record sentences in their own voice. Designed for young learners, it offers interactive lessons and engaging rewards.
- Color-coded sentence parts
- Drag and drop sentence creation
- Audio support for words
- Sentence recording and saving
- 6 levels of sentence complexity
- Pictograph lessons
- Earnable puzzle piece rewards
Read full descriptionHide full description
Own as an individual app or as part of our MES Speech Therapy Bundle. Winner - 2012 Best Language Development App - Technology in Special Education Finalist - Best Education App of 2012 - Best Apps Ever Rainbow Sentences is designed to help students improve their ability to construct grammatically correct sentences by using color coded visual cues. The who, what, where, and why parts of sentences are color coded to help students recognize and understand how combinations of these parts create basic sentence structure. Students will learn how to recognize the parts of sentences such as nouns, verbs, and prepositions, improve their understanding of how combinations of these parts create basic sentence structure. Students have the opportunity to record their sentences in their own voice to improve their receptive and expressive language skills. Rainbow Sentences offers a unique environment for improving a student's ability to create grammatically correct sentences. FEATURES -168 images to create sentence from -Intuitive drag and drop to create sentences -Words are spoken as they are being dragged for non readers -Words can be color coded for added visual support -Word groups can be selected to simplify sentence construction -6 levels of sentence complexity -Pictograph lessons to help students learn proper sentence construction -Record feature allows students to record sentences in their own voice -Save and email recorded sentences -Students earn puzzle pieces during play to encourage continued play -Puzzles come to life once level is complete LANGUAGES - English REQUIREMENTS - Compatible with iPad - Requires iPad 11 software update Mobile Education Store is a member of Moms with Apps, a collaborative group of family-friendly developers seeking to promote quality apps for kids and families. Recommended Ages: 3-6, 6-10 Categories: Special Needs, Education
Fraction Builder
Read full descriptionHide full description
Fraction Builder is an interactive tool for students to use to learn about proper fractions. Learn about naming fractions, equivalent fractions and comparing fractions. Fraction Builder is controlled by sliding tiles and tapping icons. As students build fractions, the fractions are shown as a numerator over a denominator, as a decimal, as parts of a whole and as a position on a number line. When the quiz icon is tapped questions automatically appear on a moveable note. Students slide tiles to answer the quiz question. Three different topics can be selected: 1. Naming Fractions 2. Equivalent Fractions 3. Comparing Fractions As the student uses the app, a scoreboard is keeps track of the student's progress and shows the number of problems attempted and also what percent of the problems were answer correctly. Fraction Builder can be used in a number of ways. 1. Build fractions by dragging tiles to the numerator or denominator positions. 2. Answer quiz questions in these topic areas: Naming Fractions., Equivalent Fractions and Comparing Fractions. 3. Build fractions and as they are defined they are shown pictorially, in standard form with numerator over denominator, as a decimal rounded to the hundredths place, as a position on a number line between 0 and 1, and written in English.
Verdict
The clearest difference is price: Fraction Builder at $1.99 against Rainbow Sentences's $9.99. Rainbow Sentences's advantage is update cadence (every 6 months vs every 22 months). On ads, 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
Rainbow Sentences costs $9.99 and Fraction Builder $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Rainbow Sentences ships an update every 6 months, Fraction Builder every 22 months. The most recent releases landed on October 21, 2026 and October 26, 2026 respectively.
| Parameter | Rainbow Sentences | Fraction Builder |
|---|---|---|
| Price | $9.99 | $1.99 — better |
| Rating | 3.7 (15 ratings) — better | — |
| Positive reviews | 94.4% of reviews | — |
| Number of ratings | 15 — better | — |
| Update frequency | Every 6 months — better | Every 22 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPad | iPad, Mac — better |
| Requires iOS | 11.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 179 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Mobile Education Store LLC | Ventura Educational Systems |
Bugs and requests
Rainbow Sentences
Reported bugs
15 issues- Advertisement cannot be gotten rid of
- App loads into settings
- Program loads into settings options
- Advertisement for another Mobile app that cannot be gotten rid of
- App description page only scrolls partway
Show 10 moreShow fewer
- App does not work at all
- Only get a picture and no words
- Email stats button not working
- Unable to email stats
- Screen not displaying correctly
- Problem with iPad settings
- Cannot go from sentence building to settings or statistics page until/unless sentence is correctly built
- Play Lesson button placement issue
- Difficulty dragging words
- Color scheme does not match industry standard Fitzgerald Key
Requested features
31 requests- Remove ads from paid app
- Set app to load into play mode by default
- Restrict settings for adults only
- Add questions and past/future tenses
- Make pictures more age-appropriate for high school
Show 26 moreShow fewer
- Turn off the puzzle feature
- Move 'Play Lesson' button
- Add foreign language versions
- Vocalize words when first selected
- Categorize words by parts of speech
- Provide definitions of parts of speech
- Add more levels with additional parts of speech
- Option to remove picture clue
- Move text placement lines closer to picture
- Enlarge text size
- Words on the bottom of the screen to speak when touched
- Set custom color coding
- Accommodate different country spellings
- More sentences required for each reinforcer/puzzle piece
- More immediate feedback with each correct answer
- Words at the bottom of the picture spoken instead of printed
- Option to auto-advance to the next level
- Make the child place the puzzle piece themselves
- Variety of praise statements instead of just 'That's right'
- More reward puzzles per level
- Multi-player option
- Option to move a word back to the word bank
- Allow children to place earned puzzle pieces themselves
- More interest level choices for sentences
- Different country spellings
- More levels with increased difficulty for older users
Fraction Builder
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Rainbow Sentences
No in-app purchases
Fraction Builder
No in-app purchases
Questions
Is Rainbow Sentences free?
Is Fraction Builder free?
Do Rainbow Sentences or Fraction Builder have ads?
Which is updated more often, Rainbow Sentences or Fraction Builder?
Other comparisons















