Comparison

Sunspeak vs Keyphabet

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

Head to head
About

Sunspeak

Features
Read full description

Tap words and symbols to build sentences and speak. Sunspeak is an easy to use and highly customizable AAC (Augmentative and Alternative Communication) app for people who cannot speak or need help being understood. Fully customizable • Create and edit communication boards • Drag and drop to move and resize buttons • Customize layouts, colors, content and more • Gradually reveal more words as communication improves • Adapt the app to each individual user Built for real-world use • Fast, responsive and designed for daily communication • Works offline for reliability anywhere • Simple to use Version history and control • See every change made to a board • Instantly restore previous versions • Undo / redo changes while editing • Experiment freely without losing progress Sync across devices • Seamlessly sync your boards between devices • Set up once and access everywhere Progress insights • See communication improve over time • Understand patterns like longer messages and faster typing Multiple languages • Create and use boards in different languages • Support for bilingual communication Private and secure • Your data stays under your control • No ads or invasive tracking Designed for caregivers and users • Flexible setup for parents, carers and therapists • Suitable for both children and adults • Scales from simple boards to advanced setups Who is Sunspeak for? Sunspeak is ideal for people who: • are non-verbal or have limited speech • use AAC systems to communicate • need a flexible, modern communication tool Sunspeak makes communication simple, fast and accessible. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Keyphabet

Features
Read full description

Keyphabet — ABC Music Keyboard Start learning piano through play. Keyphabet is a beginner-friendly music and spelling app where every letter plays a note. Press a key, hear music instantly, play the piano by ear, follow familiar songs, and build confidence one note at a time. Made for curiosity—not pressure. Choose an instrument, add room-style sound effects, turn on Sustain to hold notes, and make the alphabet sound different every time. From piano and marimba to bells, organ, flute, and chiptune, Keyphabet makes music feel immediate: press a key and hear what happens. Three ways to play: • Free Play Tap letters to make music. Experiment, improvise, play a tune by ear, or simply enjoy the sound of each colorful key. • Guided Song Play Choose a familiar song and follow the notes shown below. The matching letter glows on the board to help players connect letters, sounds, simple directions, and musical notation. Auto-Play can play the song for reference or for singing along. • Musical Spelling Choose a guided spelling adventure or practice a word one letter at a time. It is a refreshing, playful way to build familiarity with letters, typing, spelling, sequencing, and reading simple prompts. Keyphabet is designed to feel calm, clear, and inviting. There are no ads, subscriptions, accounts, signups, or complicated setup screens—just open the app and start playing. It can be a great fit for toddlers discovering letters, school-age kids practicing spelling, older kids who enjoy music, and adults who want a gentle, tactile way to play. Its clear visual structure and low-pressure pacing may also be especially welcoming for autistic players, neurodivergent learners, children who become overwhelmed by busy apps, and anyone who prefers a calmer learning experience. There is no “right” way to use Keyphabet. Explore freely, repeat a favorite song, follow along at your own pace, or use it as a small musical break in the day. Keyphabet is a no-fail, low-pressure introduction to piano, musical notes, letter recognition, spelling, and following directions. There is no wrong way to begin—just press a key and make music. More music, spelling adventures, songs, instruments, and playful learning features are coming soon.

Screenshots

Sunspeak4 screens
Keyphabet4 screens

Verdict

The call

The clearest difference is in-app purchases: Keyphabet at none against Sunspeak's 3. Sunspeak's advantage is iOS requirement (15.1 vs 26.2). On price, 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

Both are free to download. Sunspeak sells 3 in-app purchases, starting at $9.99 per month. Keyphabet asks for nothing beyond the download.

Scorecard2 real differences · 4 level
Sunspeak versus Keyphabet: the parameters behind the verdict, then further details
ParameterSunspeakKeyphabet
PriceFreeFree
Update frequencyEvery 2 weeks—
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better26.2
Further details — not scored
Size99 MB5 MB
Age rating4+4+
DeveloperAlzenwareCrystal Horgan

In-app purchases

3 purchases

Sunspeak

Subscriptions2
  • Pro$9.991 Month
  • Pro$84.991 Year
One-time1
  • Pro Lifetime$199.99
None

Keyphabet

No in-app purchases

Questions

Is Sunspeak free?
Sunspeak is free to download, with in-app purchases available.
Is Keyphabet free?
Keyphabet is free to download, with no in-app purchases.
Do Sunspeak or Keyphabet have ads?
Neither Sunspeak nor Keyphabet shows ads.

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