Cardzilla vs Rylo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cardzilla
Display your messages in large, clear text for easy reading across distances. This app offers a no-scroll design that automatically resizes text as you type, saving all your cards automatically. It's ideal for silent communication or grabbing attention without sound.
- Large and clear text display
- Automatic text resizing
- No scroll design
- Automatic card saving
- Save favorite messages
- Quick swipe navigation
- Shake to save and erase
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A fast & simple way to display your messages in large text. Communicate across distances. Pass messages silently. Grab attention when sound isn't an option! CARDZILLA Features • Large & clear text, easy to read. • No scroll design, text automatically resizes as you type! • All cards are automatically saved, never lose anything. • Save favorite messages for quick access. • Quick navigation with swipe interface. • Shake to quickly save-and-erase! CARDZILLA is built for speed and ease of use. Just start typing as soon a blank card appears. Text will resize as you type, no scrolling ever!
Rylo
This app provides real-time call captioning for phone conversations, making them accessible for deaf and hard-of-hearing individuals. It also offers live transcription for in-person meetings and supports multiple languages, with a focus on user privacy and community input.
- Real-time call captioning
- Live in-person conversation transcription
- Keep existing phone number
- Save and review transcripts
- Personal dictionary
- Type responses
- Voicemail transcription
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Phone calls made accessible. Rylo provides real-time, AI-powered call captions on every phone call for anyone who is deaf or has hearing loss. Captioned calls are private and accurate. MAKE AND RECEIVE ANY CALL Rylo works like your native phone app, but with speech-to-text call captions. If you prefer to type your responses, you can choose a voice and use our text-to-speech feature. No interpreters. No relay services. No strangers listening in. LIVE CAPTIONS FOR REAL LIFE Our built-in feature, Rylo Live Transcribe, captions in-person conversations instantly: family dinners, doctor's appointments, airports, or anywhere else you don't want to miss a word. YOUR PRIVACY IS PROTECTED Captions are generated with end-to-end encryption. No human involvement. No one reading your calls but you. BUILT FOR THE DEAF COMMUNITY, BY THE DEAF COMMUNITY Rylo was built with direct input from the Deaf and hard of hearing communities. Every feature exists because someone in the community needed it. Accessibility matters. KEY FEATURES ■ Live caption calls with transcripts ■ Live captioning for in-person moments (Rylo Live Transcribe) ■ Personal dictionary for custom words and phrases ■ Quick keyboard responses as needed ■ Visual voicemail ■ Save transcripts privately on your device ■ Multilingual captioning: English, Spanish, French, Japanese, Hebrew, Italian ■ Built-in spam filter and call blocking ■ Profanity blocker ■ FCC certified "Rylo is the true definition of a game-changer. Their goal is to ensure effective and smooth communication." — Verified user "I was able to make a phone call myself. I set up my own appointment. I could clearly read every word the recipient was saying to me. I explained to her I was deaf and I was using closed captioning. It was amazing. Thank you Rylo for allowing me to be more independent." — Verified user Download Rylo. Make calls with confidence. For more: https://rylo.com/ Support: https://help.rylo.com/en/ FEDERAL LAW PROHIBITS ANYONE BUT REGISTERED USERS WITH HEARING LOSS FROM USING INTERNET PROTOCOL (IP) CAPTIONED TELEPHONES WITH THE CAPTIONS TURNED ON. There is a cost for each minute of captions generated, paid from a federally administered fund. There are also eligibility requirements and a cost, paid by a federally administered fund for each minute of IP Relay service. Emergency calling through Rylo works similar to, but not the same as, calling 911 directly through a landline. It is important to keep your Rylo Registered Location updated.
Screenshots
Verdict
The clearest difference is monetization model: Cardzilla at free against Rylo's free with in-app purchases. Cardzilla also leads on review sentiment (91% vs 67%) and iOS requirement (13.0 vs 16.6). Rylo's advantage is update cadence (every 5 days vs every 4 weeks) and ratings volume (4.1K vs 76). On price, rating, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.6 for Cardzilla against 4.6 for Rylo. That said, the two scores are not equally well evidenced: Rylo has 4.1K ratings behind it against 76, so its average is the more settled of the two. Written reviews are what separate them: 91% of Cardzilla's written reviews are positive against 67% of Rylo's.
Cardzilla ships an update every 4 weeks, Rylo every 5 days. The most recent releases landed on October 15, 2026 and October 17, 2026 respectively.
| Parameter | Cardzilla | Rylo |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (76 ratings) | 4.6 (4.1K ratings) |
| Positive reviews | 91.1% of reviews — better | 67.3% of reviews |
| Number of ratings | 76 | 4.1K — better |
| Update frequency | Every 4 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 13.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 3 MB | 106 MB |
| Age rating | 4+ | 12+ |
| Developer | Tim Kettering | Nagish Inc. |
Customer experience
Cardzilla
Rylo
User reviews
Cardzilla
From 76 App Store ratingsWhat we love
- 👍 Simple and intuitive interface
- 🚀 Fast and efficient communication
- 💡 Invaluable for users with speech/hearing impairments
- 👍 Large, readable text display
- 👍 Automatic saving of history
Room to improve
- 🐛 Speech-to-text can be slow
- 🐛 Microphone turns off too quickly
- 🐛 Lack of language translation
- 🐛 No clear way to contact developer
- 🐛 Shake-to-erase can be accidentally triggered
Rylo
From 4.1K App Store ratingsWhat we love
- 🚀 Accurate real-time transcription
- 👍 Helpful for hearing-impaired users
- 🚀 Seamless phone call experience
- 👍 Excellent customer support
- 💡 Innovative solution for accessibility
Room to improve
- 🐛 Inconsistent call quality and connectivity issues
- 🐛 Captions not always accurate
- 🐛 Difficulty with registration and account setup
- 🐛 Lack of features like call blocking and voicemail management
Bugs and requests
Cardzilla
Reported bugs
3 issues- Crashes on two-finger swipe up (iPad Air 2, iOS 11.2)
- App no longer has mic icon (reported in 2019)
- Notes lost when switching apps (reported in 2020, contradicted by other reviews)
Requested features
15 requests- On-screen keyboard visibility toggle
- Adaptive text size options (fixed or auto-overflow)
- Language translator
- Setting for microphone to stay on
- Option to disable shake-to-erase
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- Dark mode option
- Ability to set notes to 'scroll'
- Option to contact developer
- Add time/date stamps to saved notes
- More color options for background/text
- Support for Apple Watch
- Offline speech-to-text functionality
- Yellow background option for DeafBlind users
- Option to make text size smaller
- Improve text size scaling for longer inputs
Rylo
Reported bugs
3 issues- Registration process repeatedly fails
- Incoming calls not detected by the app
- Transcription stops working mid-call
Requested features
4 requests- Option to save call transcripts
- Improved noise cancellation and microphone sensitivity
- Integration with hearing aids and Bluetooth devices
- Expanded language support
In-app purchases
Cardzilla
No in-app purchases
Rylo
No in-app purchases







