Comparison

Preposition Remix vs Grovalin

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

Head to head
About

Preposition Remix

This app uses music and real-life photos to help children and English Language Learners master prepositions. Users earn musical notes to unlock and play virtual instruments, making learning engaging. It offers professional data tracking and customizable features for tailored learning.

Highlights
  • Music-themed learning
  • Real-life photographs
  • Virtual instrument collection
  • Professional data tracking
  • Customizable preposition targets
  • Adjustable feedback settings
Features
Read full description

Preposition Remix: The Musical Way to Master Spatial Skills Turn up the volume on language learning! Developed by certified speech-language pathologist Barbara Fernandes, Preposition Remix is a high-energy, music-themed app designed to help children, English Language Learners (ELL), and individuals with language delays master the "where" in their world. Why Real Photos Matter Unlike abstract cartoons that can be confusing, Preposition Remix uses nearly 200 real-life, high-quality photographs. This concrete visual anchoring helps neurodivergent students and language learners generalize spatial concepts—like under, between, and closest to—from the screen to their everyday environment. Build Your Virtual Band Motivation is the key to progress! As students correctly identify spatial relationships, they earn musical notes to unlock a virtual instrument collection. From guitars to bagpipes, students can tap and play their instruments, turning therapy into a creative jam session. Features for Professionals and Parents: Comprehensive Library: Targets over 20 core prepositions including above, behind, beside, between, under, in front of, inside, closest to, and furthest from. Professional Data Tracking: Automatically logs session dates, targets attempted, and accuracy percentages in a detailed "Report Card". Complete Customization: Toggle individual prepositions on or off to align with specific IEP goals or classroom lessons. Clinical Scaffolding: Adjust feedback settings to include "No Response" for incorrect taps to reduce frustration, or "Written Cues" to support early readers. Multi-Player Support: Manage multiple student profiles on one device, tracking individual progress and instrument collections separately.

About

Grovalin

Features
Read full description

Grovalin helps children with Autism Spectrum Disorder (ASD) learn that the same word applies to objects that look different. A chair at home, a chair at school, and a chair in a picture book are all "chair." That skill, called generalization, is one of the hardest steps in early language learning, and Grovalin teaches it using the most familiar material possible: your own home. HOW IT WORKS 1. Caregivers take photos or short videos of everyday objects at home. 2. Grovalin identifies the objects and creates labeled learning cards, including color and style variations of each object. 3. Children learn through simple, distraction-free activities designed for visual learners. LEARNING ACTIVITIES - Explore: browse familiar objects and hear their names spoken aloud - Matching Game: "Tap the chair" prompts with gentle, encouraging feedback - Stories: short illustrated stories built around the child's own objects - Life Skills: step-by-step visual guides for everyday routines - AAC Board: a picture-based communication board built from the child's objects BUILT FOR CAREGIVERS - You control everything: what is photographed, what is taught, and when - Child sessions are PIN-protected; settings and uploads stay in Parent Mode - Progress tracking shows which words are practiced and mastered over time - Activities are PECS-phase-gated and VB-MAPP aligned, designed to complement, not replace, guidance from your child's care team DESIGNED FOR FOCUS Large touch targets, high contrast, spoken labels, no ads, no in-app purchases, and no time pressure. Sessions are short and predictable, so children can focus on one skill at a time. Grovalin is a tool for caregivers of children with ASD. It is not a medical device and does not diagnose or treat any condition.

Screenshots

Preposition Remix4 screens
Grovalin4 screens

Verdict

The call

The clearest difference is price: Grovalin at Free against Preposition Remix's $24.99. Grovalin also leads on update cadence (fortnightly vs every 13 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

CostPrice · In-app purchases · Ads · Monetization

Grovalin is free to download; Preposition Remix costs $24.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Preposition Remix ships an update every 13 months, Grovalin fortnightly. The most recent releases landed on October 16, 2026 and October 3, 2026 respectively.

Scorecard2 real differences · 8 level
Preposition Remix versus Grovalin: the parameters behind the verdict, then further details
ParameterPreposition RemixGrovalin
Price$24.99Free — better
Rating4.3 (15 ratings) — better—
Positive reviews80.3% of reviews—
Number of ratings15 — better—
Update frequencyEvery 13 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size102 MB16 MB
Age rating4+4+
DeveloperSmarty EarsSohGrow

Bugs and requests

Preposition Remix

Reported bugs

12 issues
  • App requires very fine motor skills for accurate scoring
  • App sometimes states incorrect answer as correct
  • App mislabels items after responses
  • Email function for data doesn't disappear after sending/canceling
  • App crashes frequently
Show 7 more
  • App buzzes as if an answer is incorrect when it is correct
  • Stimulus sentences sometimes do not match the picture
  • App occasionally quits unexpectedly
  • Bug with 'on top of' indicating incorrect response
  • Some concepts not accurately pictured (e.g., 'above')
  • Auditory cue does not match visual cue sometimes
  • Small pictures/targets difficult for little fingers to tap

Requested features

12 requests
  • Allow keeping data on more than one student at a time
  • Add visual reinforcement for correct answers
  • Ability to turn off comments/auditory reinforcement
  • Control time between new pages
  • Option to pick which prepositions to work on for the session
Show 7 more
  • Add a skip button
  • Widen the area for correct responses
  • Allow for correct answer/tap to be 'in the general area'
  • Allow for random presentation of prepositions
  • Add visual reinforcers in addition to auditory reinforcers
  • Ability to turn off the voice that is speaking
  • Randomization of concepts

Grovalin

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Preposition Remix

No in-app purchases

None

Grovalin

No in-app purchases

Questions

Is Preposition Remix free?
Preposition Remix costs $24.99, with no in-app purchases.
Is Grovalin free?
Grovalin is free to download, with no in-app purchases.
Do Preposition Remix or Grovalin have ads?
Neither Preposition Remix nor Grovalin shows ads.
Which is updated more often, Preposition Remix or Grovalin?
Preposition Remix ships an update every 13 months, and Grovalin fortnightly. Most recently, Preposition Remix was updated on October 16, 2026 and Grovalin on October 3, 2026.

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