Comparison

RadSounds Cause/Effect vs Grid for iPad

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

Head to head
About

RadSounds Cause/Effect

This music program allows users to create custom playlists by recording, importing, or using provided songs. It offers multiple playback modes and is switch-friendly for individuals with physical challenges.

Highlights
  • Customizable music playlists
  • Record or import audio
  • Momentary playback mode
  • Timed playback mode
  • Advanced playlist cycling
  • Switch-friendly access
Features
Read full description

RadSounds is the world's greatest cause/effect music program for special needs learners. You can customize your playlist by recording or singing new music to your iPad, importing from your iPad's music library, or use the many great songs that we provide, from many types. There is Momentary mode, where the music plays for only the time you hold your finger on the iPad, Timed mode, where the music plays for a specified number of seconds upon each activation, or an advanced mode where the user chooses songs by cycling through their playlist. RadSounds is *switch-friendly*, that is, for those with physical challenges, a switch (or button) can be plugged into our iPad Switch Interface for cordless access to switch-friendly apps.

About

Grid for iPad

This app provides a comprehensive Augmentative and Alternative Communication (AAC) solution for individuals with diverse communication needs. It offers flexible tools, evidence-based resources, and customizable features that adapt as users' needs evolve.

Highlights
  • Evidence-based AAC resources
  • Online community grid sets
  • In-app and remote editing
  • AI-powered design tools
  • Multiple symbol libraries
  • Multilingual support
  • Pre-built communication resources
Features
Read full description

Grid for iPad is a complete Augmentative and Alternative Communication (AAC) solution designed for people of all ages and communication needs. It offers a range of resources, flexible communication tools, and options that can be adapted over time. Try it FREE for 30 days - voices included! Key features: ► A range of included content for people who need symbol or text based AAC, including Super Core, Voco Chat, and Text Talker ► Suitable for use with touch access or switches. ► Evidence-based symbol AAC vocabularies, created by experienced speech and language therapists and education professionals, with a focus on vocabulary for communicating within everyday routines and activities. ► Includes SymbolStix, PCS and Widgit symbols – choose the symbol library that is most suitable, to match the symbols already being used in the environment, or to support transition from other AAC systems. ► Voices and grid sets for over 20 languages to support communication in a range of languages. Ideal for multilingual families or classrooms. Why families and professionals choose Grid for iPad for children and adults with communication difficulties: ► In-app editing – Fast, intuitive editing makes it easy to add new words, personalise vocabulary, and adapt layouts to the needs of the individual. ► Remote Editing – SLTs, teachers and families can edit any time, without needing the device in their hands. ► Powerful voice technology – Choose from a range of voices, including the latest AI powered multilingual voices from ElevenLabs, or for those who are able to, record your own voice messages. ► AI Powered Tools - Make use of optional tools to correct typing errors, or support the user to change the tone or wording of their message. ► Talk to your Smart Speaker – Use Grid for iPad to speak instructions to smart home devices, request music, hear the latest news and weather, play games and ask questions. ► Online Grids – Do even more with Grid for iPad by searching and downloading FREE ready-made grid sets created by clinicians, educators, and the Grid community. What’s included: ► Super Core - Evidence-based core vocabulary focused on communication within everyday routines and activities. Designed for supporting AAC learners from single words to building full sentences. Available in 30‑cell and 50‑cell sizes, with simpler 12 and 20 cell learning grids for those just starting out. ►Voco Chat – Designed to enable users to communicate for a wide range of reasons, with supported message pathways and carefully chosen vocabulary, for fast and efficient symbol communication. ► Alpha Core - Offers a range of text-based layouts to support the communication of people with changing physical abilities, with quick access to predictive text and common phrases, alongside a keyboard of your choice. ► Text Talker - Enabling people to say what they want to say in the moment, or prepare and save messages in advance for faster conversations. ►Aphasia Duo - Designed specifically for people with aphasia and their communication partners to support participation in everyday life, including a range of word-finding and conversational supports, and whiteboard for writing and drawing. ► PODD (in-app purchase) - Created by Australian Speech Pathologist Gayle Porter, PODD organises language according to the reason for communication, designed to support spontaneous communication in any situation. ► And MUCH more - Grid for iPad also includes a range of interactive learning activities (just try Dilbert the Dog!), animated communication from Symoji, and educational resources. Simple, flexible pricing: Grid for iPad is available through a monthly subscription with a 30-day FREE trial or as a one-off purchase. You can cancel your subscription at any time. Contact our tech support experts any time at support@thinksmartbox.com For more details on our evidence-based vocabularies, visit the Smartbox Hub.

Verdict

The call

The clearest difference is price: Grid for iPad at Free against RadSounds Cause/Effect's $1.99. Grid for iPad also leads on update cadence (fortnightly vs every 11 months) and ratings volume (18 vs 2). RadSounds Cause/Effect's advantage is rating (4.5 vs 3.6) and in-app purchases (none vs 4). 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

CostPrice · In-app purchases · Ads · Monetization

Grid for iPad is free to download; RadSounds Cause/Effect costs $1.99 up front. Grid for iPad sells 4 in-app purchases, starting at $10.99 per month. RadSounds Cause/Effect asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

RadSounds Cause/Effect holds the better App Store score, 4.5 against 3.6. That said, the two scores are not equally well evidenced: Grid for iPad has 18 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 78% of RadSounds Cause/Effect's written reviews are positive against 50% of Grid for iPad's.

UpkeepUpdate frequency

RadSounds Cause/Effect ships an update every 11 months, Grid for iPad fortnightly. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

Scorecard8 real differences · 2 level
RadSounds Cause/Effect versus Grid for iPad: the parameters behind the verdict, then further details
ParameterRadSounds Cause/EffectGrid for iPad
Price$1.99Free — better
Rating4.5 (2 ratings) — better3.6 (18 ratings)
Positive reviews77.8% of reviews — better50.0% of reviews
Number of ratings218 — better
Update frequencyEvery 11 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPadiPad
Requires iOS9.0 — better15.0
Further details — not scored
Size121 MB1.4 GB
Age rating4+4+
DeveloperRJ Cooper & Associates, Inc.Smartbox Assistive Technology

Customer experience

RadSounds Cause/Effect

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews9 reviews
Positive77.8%
Neutral22.2%
Negative0.0%

Grid for iPad

All ratings18 ratings
Positive61.1%
Neutral5.6%
Negative33.3%
Written reviews12 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

RadSounds Cause/Effect

No in-app purchases

4 purchases

Grid for iPad

Subscriptions1
  • Grid for iPad Subscription1 Month trial$10.991 Month
One-time3
  • Metacom Symbol Library$49.99
  • PODD for Grid (English)$99.00
  • Grid for iPad full licence$299.99

Questions

Is RadSounds Cause/Effect free?
RadSounds Cause/Effect costs $1.99, with no in-app purchases.
Is Grid for iPad free?
Grid for iPad is free to download, with in-app purchases available.
Which has better reviews, RadSounds Cause/Effect or Grid for iPad?
RadSounds Cause/Effect is rated higher. RadSounds Cause/Effect averages 4.5 out of 5 from 2 ratings, while Grid for iPad averages 3.6 from 18 ratings.
Do RadSounds Cause/Effect or Grid for iPad have ads?
Neither RadSounds Cause/Effect nor Grid for iPad shows ads.
Which is updated more often, RadSounds Cause/Effect or Grid for iPad?
RadSounds Cause/Effect ships an update every 11 months, and Grid for iPad fortnightly. Most recently, RadSounds Cause/Effect was updated on October 23, 2026 and Grid for iPad on October 24, 2026.

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