Best Rattlegram Apps

248+ iOS apps curated and reviewed

4.2 avg rating

20 free apps

Updated August 2026

Finding the right rattlegram apps can be overwhelming with so many options. We've analyzed 248+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Compare top Rattlegram Apps (August 2026)

#	App	Price	Rating	Ads	In-App Purchases	Updated
1	Rattlegram	Free	4.5★ (23)	No	No	Jul 2026
2	Waver: Data Over Sound	Free	4.9★ (11)	No	No	Aug 2026
3	Textacy	Free	5.0★ (1)	No	No	May 2026
4	Textedly	Free	5.0★ (3)	No	No	Sep 2026
5	Messenger for Messages	Free	4.4★ (328)	Yes	No	Sep 2026
6	Big Text Display	Free	4.4★ (24)	No	No	Jul 2026
7	Text Message Sounds	Free	3.8★ (83)	Yes	No	Sep 2026
8	JENSEN WI-FI AUDIO	Free	1.4★ (5)	No	No	May 2026

Top Picks for Rattlegram

#1

Rattlegram by aicodix GmbH

SMS via audio!

Editor's Choice

🌐 Social Networking

4.5(23 ratings)

Free

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This app utilizes advanced COFDM technology for audio-based SMS transmission. It supports various modes with specific encoding and modulation techniques, requiring minimal bandwidth for efficient data transfer.

#2

Waver: Data Over Sound by Georgi Gerganov

Messaging through sound

Strong Contender

🔧 Utilities

4.9(11 ratings)

Free

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Communicate with nearby devices using sound waves for text and file sharing. This app enables local messaging without an internet connection, utilizing your device's speaker and microphone.

#3

Textacy by Textacy

Worth Considering

🔧 Utilities

5.0(1 ratings)

Free

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A modern messaging application that allows users to register, select a personal number, and communicate via SMS, MMS, and VoIP calls. It offers robust conversation management features including chat blocking and deletion within a secure interface.

More Rattlegram apps to explore

SMS Marketing & Mass Texting

Send SMS and MMS messages to contacts, manage campaigns, and communicate with customers on the go. Features include bulk messaging, real-time inbox, scheduled texts, and campaign analytics.

Send bulk SMS and MMSReal-time message inboxSchedule text messages

Messenger for Messages

Messenger for Messages

Messenger for Messages

Messenger SMS: Fast & easy SMS

This app redefines text messaging with unlimited sending, rich formatting, and multimedia integration. Organize conversations, search quickly, and personalize your chats with themes and stickers. Enjoy enhanced security and cross-device synchronization for a seamless communication experience.

Unlimited messagingRich text formattingMultimedia integration

🌐 Social Networking

Big Text Display

Big Text Display

Big Text Display

Write in really big font

Display messages in large, screen-filling text for easy visibility from a distance. Features speech synthesis, shake-to-flash, and saved favorites for quick access. Ideal for noisy environments or accessibility needs.

Full-screen text displaySpeech synthesisShake to flash message

Text Message Sounds

Text Message Sounds

Text Message Sounds

Sound effects and Ringtones

Discover a wide variety of sound effects and ringtones specifically designed for text message alerts. Easily preview and save your favorite sounds to personalize your notifications. Enjoy a collection of loud, funny, and popular alert tones.

Popular sound effects for alertsCustomizable text message ringtonesSave favorite sounds

🎬 Entertainment

free with in-app purchases

JENSEN WI-FI AUDIO

JENSEN WI-FI AUDIO

JENSEN WI-FI AUDIO

Stream music wirelessly from your Apple device to JENSEN Alexa-enabled speakers. Manage multiple speakers, control volume, use intercom features, and access cloud music services and online radio without physical connections.

Wireless music streamingSpeaker grouping and ungroupingStation and preset management

Chat smarter, Connect closer

This app offers secure, instant messaging with a smart toolbox for enhanced communication. It includes AI-generated conversation starters, real-time translation, and a library of chat tips to help users express themselves confidently in any situation.

End-to-end encryptionAI-generated conversation startersReal-time message translation

🌐 Social Networking

SMS - Extension

SMS - Extension

SMS - Extension

Send and receive SMS and MMS messages across your devices seamlessly. Your messages stay synced and accessible from your mobile device or web browser, using your existing phone number.

Cross-device SMS and MMS syncCloud-based message storageSeamless web browser access

Tele Messenger Chat Secure

Tele Messenger Chat Secure

Tele Messenger Chat Secure

Private Messenger Every Day.

This UNOFFICIAL messaging app uses the Telegram API for fast, secure, and synced communication across devices. It offers advanced customization, enhanced message management, and internal proxy support for a stable connection. Enjoy free messaging, voice, and video calls with a strong focus on privacy.

Secure end-to-end encrypted messagingAdvanced interface customizationFree voice and video calls

free with in-app purchases

by Conrad Consulting

Easily display large text on your device for quick communication in noisy environments or for simple alerts. Type your message and hold up your phone or tablet to get your words across in a big way.

Display large textQuick communication toolUseful for noisy environments

Download new text alert sounds

Personalize your iPhone with over 100 new text alert sounds. Assign unique tones to individual contacts for easy identification, even when your phone is out of sight. Explore diverse categories like music, sound effects, and holiday themes.

Over 100 new text tonesCustom tones per contact15+ tone categories

free with in-app purchases

Control speaker functions like lighting and music playback via Bluetooth. Adjust light modes, switch radio stations, and manage audio sources directly from your device.

Bluetooth connectivityAdjust light modesSwitch radio stations

OmniSound - PC Speaker

OmniSound - PC Speaker

OmniSound - PC Speaker

Your phone as a PC speaker

Transform your phone into a wireless speaker for your computer. Stream audio directly from your PC to your mobile device without needing to install any software on your computer. Enjoy low-latency sound for a seamless listening experience.

Use phone as computer speakerNo computer installation requiredLow-latency audio streaming

free with in-app purchases

Live Listen for AirPods 2: Ear

Live Listen for AirPods 2: Ear

Live Listen for AirPods 2: Ear

Sound Amplifier: Super Hearing

Enhance your hearing and speech clarity with this sound amplifier. It uses AirPods and Bluetooth headphones to personalize your listening experience, reduce background noise, and simulate hearing conditions to build empathy.

Sound amplification with headphonesSpeech clarity enhancementBuilt-in hearing test

Novagram Messenger Telegram

Novagram Messenger Telegram

Novagram Messenger Telegram

Fast. Secure. Powerful

A secure and private messenger for sending messages, photos, videos, and files. Offers features like chat locking, ghost mode, instant translation, and message editing history. Supports voice and video calls with cloud synchronization across devices.

Chat locking with password protectionGhost mode for reading messages discreetlyInstant message translation

🌐 Social Networking

Text Message Sounds +

Text Message Sounds +

Text Message Sounds +

funny sound effects

Access a collection of over 65 popular and funny sound effects and ringtones. Easily set these sounds for text message notifications, alerts, or alarms. This app groups popular downloaded notification sounds into one convenient place.

Over 65 funny ringtonesSound effects for notificationsAlerts and alarms

Text To Speech Audio Reader

Text To Speech Audio Reader

Text To Speech Audio Reader

Read Out Loud For Me

Convert text into spoken audio with this easy-to-use application. Import text files or type your own content, and have it read aloud. Features include navigation controls, sentence highlighting, and a variety of voice options.

Import text filesType and read textFast forward/backward navigation

by Tiny Mobile Inc.

Express yourself with hilarious sound bites sent via text message. Choose from over 500 audio clips to convey your emotions and reactions in a fun, new way. Unlock your favorites to share with friends and enemies.

Share sound bites via textOver 500 sound bitesUnlock desired sound bites

🌐 Social Networking

free with in-app purchases

FAQ about Rattlegram

What are the best rattlegram apps for iPhone?

Rattlegram tops our rattlegram apps ranking as of August 2026, with a 4.5-star average from 23 App Store ratings, and it's free to download.

Are there free rattlegram apps for iPhone?

Yes — 20 of the top rattlegram apps we rank are free to download, including Rattlegram and Waver: Data Over Sound.

Does Rattlegram have ads or in-app purchases?

Rattlegram has no ads and has no in-app purchases, according to its App Store listing as of August 2026.

How many rattlegram apps are on the App Store?

We track 248+ rattlegram apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.

What is Rattlegram's primary function?

Rattlegram's primary function is to transmit SMS messages using audio signals, leveraging COFDM technology for efficient data transfer.

What technology does Rattlegram use for SMS transmission?

Rattlegram utilizes COFDM (coded orthogonal frequency-division multiplexing) technology, which involves specific OFDM symbol lengths, sub-carrier frequencies, and modulation techniques.