Communication Buttons vs Modu
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Communication Buttons
This app offers a simple way to practice augmentative communication. Customize buttons with pictures and voice recordings to express words, phrases, or even songs. It's designed to demonstrate cause and effect and facilitate spontaneous communication.
- Customizable buttons
- Picture customization
- Voice recording
- Multiple button layouts (1, 2, 4, 6)
- Cause and effect demonstration
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Communication Buttons is THE app for simple augmentative communication. Choose 1 button, or sets of 2, 4 and 6 to use for touch communication. Each button can be customized with a picture and will accommodate voice recording. “Hello!” – and you’re spontaneously communicating, demonstrating cause and effect. State “yes,” or “no,” sing a song or tell a story. Keep a lookout for additional versions with special options.
Modu
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Read Chinese stories, understand unfamiliar words, and build vocabulary from what you read. Modu combines graded reading, a tap-to-lookup dictionary, and spaced-repetition review in one app. Choose a graded story or import your own EPUB and TXT books. Tap unfamiliar words for pinyin and meanings, save vocabulary in context, and review it later. READ WHAT INTERESTS YOU • Explore a library of graded retellings of public-domain stories. • Import EPUB and TXT books to read with built-in learning tools. • Generate AI stories based on your selected topic and level, with vocabulary you are due to review. • Follow RSS feeds. Available article text depends on the source; some feeds provide summaries only. UNDERSTAND AS YOU READ • Tap words for pinyin, meanings, and measure words. • Use AI explanations to explore a word in the context of a sentence. • Translate sentences and paragraphs into English on your device, or read with a bilingual chapter view. • Listen to text with read-aloud tools. REMEMBER WORDS IN CONTEXT • Save vocabulary from your reading and review it with spaced-repetition flashcards. • Mark words as known to focus highlighting on unfamiliar vocabulary. • Track your reading and vocabulary progress, and export your vocabulary. OFFLINE READING AND YOUR ACCOUNT Read and save books on your device as a guest, without creating an account. Books already on your device and core reading tools work offline. On-device translation requires an initial language-model download. AI features and natural online voices require an internet connection. Sign in to back up your vocabulary. Modu Plus also syncs reading progress and other learning data across devices. Imported book files remain on your device; import the same books on another device to continue reading there. FREE + MODU PLUS Free features include reading, dictionary lookup, on-device translation, bilingual reading, vocabulary review, book imports, RSS, the story library, and basic read-aloud. Limited AI explanations and story generation are included. Modu Plus adds higher AI usage allowances, natural multi-voice read-aloud, and additional learning-data sync. AI and natural-voice usage limits apply. See the in-app purchase screen for available plans and current allowances. Start with a story, and build your Chinese one reading session at a time. Terms of Use (EULA): https://modu-ai-proxy.zhouxuehan101.workers.dev/terms Privacy Policy: https://modu-ai-proxy.zhouxuehan101.workers.dev/privacy
Screenshots
Verdict
The clearest difference is price: Modu at Free against Communication Buttons's $2.99. Modu also leads on update cadence (weekly vs every 37 months). Communication Buttons's advantage is iOS requirement (11.0 vs 15.5). On ads, in-app purchases 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
Modu is free to download; Communication Buttons costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Communication Buttons ships an update every 37 months, Modu weekly. The most recent releases landed on June 4, 2026 and September 29, 2026 respectively.
| Parameter | Communication Buttons | Modu |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 2.5 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 37 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 30 MB | 147 MB |
| Age rating | 4+ | 4+ |
| Developer | Preferred Mobile Applications, LLC | 雪寒 周 |
In-app purchases
Communication Buttons
No in-app purchases
Modu
No in-app purchases
Questions
Is Communication Buttons free?
Is Modu free?
Do Communication Buttons or Modu have ads?
Which is updated more often, Communication Buttons or Modu?
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