Scale Master 2.0 vs Simple Sentence Maker Pro SLP
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Scale Master 2.0
This app helps musicians improve their tuning accuracy and speed. It uses droning sounds to practice intonation and visually highlights scale patterns for easy recognition. Ideal for both aspiring and professional musicians, as well as educators.
- Droning sound practice for intonation
- Visual scale pattern highlighting
- Supports various scale modes
- Scale auto-play function
- Real-time interval generation
- 780 droning renderings
- 420 scale configurations
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Train your ears. Strengthen your intonation. Play with greater confidence. Scale Master helps musicians develop a more reliable sense of pitch by turning intonation into something you can clearly hear, feel, and practice. Whether you sing, play a wind or string instrument, rehearse an ensemble, or teach music, Scale Master provides a steady tonal reference that makes focused listening easier. Practice with a sustained root and justly tuned interval to hear when two notes truly resonate. As your pitch settles into place, beating is reduced and the sound becomes clearer—helping you learn the sensation of playing in tune, not merely watching a tuner. Switch to scale practice to build dependable pitch placement across keys. Hear each scale ascend and descend while following its pattern on screen, then work at your own pace with adjustable tempo, note length, repetition, and metronome support. Scale Master can help you: • Recognize and correct intonation more quickly • Hear the resonance of well-tuned intervals • Develop stronger interval and scale awareness • Improve ensemble balance and harmonic listening • Practice confidently with a stable tonal center • Demonstrate pitch relationships clearly to students Choose your concert root, octave, transposing instrument, enharmonic spelling, and pitch calibration to create a practice environment that fits your music. Use Scale mode for consistent equal-tempered pitch placement, or Drone mode to explore the resonance of just intonation. Included scales cover essential material such as major, natural minor, harmonic minor, blues, whole tone, chromatic, and pentatonic scales. An optional Jazz Modes upgrade adds Ionian, Dorian, Phrygian, Lydian, Mixolydian, Aeolian, and Locrian modes. Designed by a professional musician and educator, Scale Master is a practical ear-training companion for students, teachers, ensemble directors, and experienced performers who want to hear more deeply—and play more beautifully in tune.
Simple Sentence Maker Pro SLP
An educational game designed to help children with special needs learn simple sentence structure. It uses pictograms and fun animations to build vocabulary and stimulate language development, making it ideal for toddlers, preschoolers, and those with autism spectrum disorder.
- Learn simple sentence structure (subject, verb, object)
- Build vocabulary with pictograms
- Stimulate language development
- Graduated difficulty levels
- Funny animations for engagement
- Ideal for children with autism
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An educational matching game, perfect to help children with special needs. Easy-to-use app, to learn how to make simple sentence structure ( subject, verb, object ). Perfect for toddlers or preschoolers. Try it with your kid and see his reaction! I bet he will love it... Our app enables the learning of simple sentence structure through games and help build vocabulary. Created by a speech therapist to stimulate language development and acquire base vocabulary, the app also opens the door to the love of reading and writing using pictograms. AN APP VERY APPRECIATED BY SPEECH THERAPISTS WORKING ALONGSIDE YOUNG CHILDREN WITH AUTISM SPECTRUM DISORDER. “I wish to tell you how much I appreciate your iPad app! Even my severely autistic students communication-wise love it! It’s the best app for a speech therapist! I’m eagerly awaiting other for more apps like this :)” — KATHERINE MIKLIS, SPEECH THERAPIST Speech therapy app for iPad to prompt language development with young children. The ideal tool to help children with speech impediments or delay. Created by a speech therapist FUNNY ANIMATIONS TO SUSTAIN THE CHILD'S ATTENTION AND MOTIVATION IT IS NOW POSSIBLE TO GRADUATE THE DIFFICULTY LEVEL Our new app allows to choose between 3 levels of difficulty to enable small-scale improvements. It's also a great tool to learn French as a second language.
Screenshots
Verdict
The clearest difference is price: Scale Master 2.0 at $1.99 against Simple Sentence Maker Pro SLP's $79.99. Scale Master 2.0 also leads on rating (4.4 vs 3.5) and update cadence (every 2 months vs every 7 months). Simple Sentence Maker Pro SLP's advantage is in-app purchases (none vs 1) and review sentiment (100% vs 87%). On ads and device support 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
Scale Master 2.0 costs $1.99 and Simple Sentence Maker Pro SLP $79.99 up front. Scale Master 2.0 sells 1 one-off in-app purchase. Simple Sentence Maker Pro SLP asks for nothing beyond the download.
Scale Master 2.0 holds the better App Store score, 4.4 against 3.5. That said, the two scores are not equally well evidenced: Scale Master 2.0 has 23 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 87% of Scale Master 2.0's written reviews are positive against 100% of Simple Sentence Maker Pro SLP's, so the app with the better star average is not the one people write more warmly about.
Scale Master 2.0 ships an update every 2 months, Simple Sentence Maker Pro SLP every 7 months. The most recent releases landed on October 23, 2026 and October 21, 2026 respectively.
| Parameter | Scale Master 2.0 | Simple Sentence Maker Pro SLP |
|---|---|---|
| Price | $1.99 — better | $79.99 |
| Rating | 4.4 (23 ratings) — better | 3.5 (2 ratings) |
| Positive reviews | 86.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 23 — better | 2 |
| Update frequency | Every 2 months — better | Every 7 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 372 MB |
| Age rating | 4+ | 4+ |
| Developer | Gil Estes | Edition Symbolicone inc. |
Customer experience
Scale Master 2.0
Simple Sentence Maker Pro SLP
In-app purchases
Scale Master 2.0
- Jazz Modes$0.99
Simple Sentence Maker Pro SLP
No in-app purchases
Questions
Is Scale Master 2.0 free?
Is Simple Sentence Maker Pro SLP free?
Which has better reviews, Scale Master 2.0 or Simple Sentence Maker Pro SLP?
Do Scale Master 2.0 or Simple Sentence Maker Pro SLP have ads?
Which is updated more often, Scale Master 2.0 or Simple Sentence Maker Pro SLP?
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