Callio vs BIG Reader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Callio
This app automates everyday calls to US businesses, handling tasks like reservations, appointment requests, and availability checks. It provides instant summaries and transcripts in your native language, eliminating the need to speak or wait on hold.
- Automated business calls
- Reservation and appointment booking
- Availability checks
- Instant call summaries
- Full call transcripts
- Supports non-native English speakers
- Helps with phone anxiety
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Need to call a local restaurant, repair shop, salon, or store? Callio handles everyday calls to businesses like reservations, appointment requests, availability checks, price questions, store hours, booking confirmations, and before-you-go checks. Callio calls US businesses for you and instantly sends you a clear summary and full transcript in your language when the call ends. You never have to speak, listen, or wait on hold. Check before you go, so you do not drive over just to find a place closed, fully booked, or unavailable. HOW IT WORKS Find a US business through search or Google Maps Choose a quick action or describe your request in your language Review the call plan and confirm Callio places the call in English for you — leave the app and keep using your phone Get your summary and transcript in seconds after the call ends — in your native language WHAT YOU GET AFTER EVERY CALL Instant summary the moment the call ends — not just the outcome, but whether your request was booked, declined, unavailable, or needs follow-up The full call transcript for transparency Key details extracted automatically, such as confirmed time, party size, quoted price, availability, or next steps An on-site card you can show staff when you arrive WHY CALLIO Built for everyday calls to local businesses from Google Maps, from reservations to availability checks Helps non-native English speakers make calls without needing to speak English Helps people with phone anxiety avoid stressful calls Helps people with hearing difficulties handle phone tasks by text Helps people with speech difficulties make calls without speaking Saves time when you do not want to wait on hold Handles "press 1 for..." menus at local businesses, so you never sit through one Helps you compare prices or availability across multiple businesses Helps you avoid wasted trips by confirming hours, availability, bookings, or basic details before you go Gets real confirmation when online information may be outdated Gives you a record instead of relying on memory BUILT FOR LOCAL BUSINESS Callio is made for everyday calls to local businesses — places where a real person picks up and helps with reservations, appointments, availability, pricing, or store details. If a business answers with a short phone menu, Callio listens to the options and presses through toward a person. Some numbers do not reach a person at the location you picked, like customer-service hotlines, government lines, and systems that require an account or member number. When Callio recognizes one, it tells you up front instead of leaving you waiting on a call that goes nowhere. YOUR PRIVACY IS PROTECTED Callio uses only what you provide. The call sticks to your plan. Your personal phone number is never used to dial the business. If a reservation or appointment requires contact information, Callio only shares the information you provide, such as your preferred name or phone number. PRICING Try the Playground for free: place a sample call to your own phone and hear how Callio speaks before you subscribe Premium unlocks unlimited calls to businesses Annual: $49.99/year Monthly: $9.99/month Subscription automatically renews unless canceled at least 24 hours before the end of the current period Manage or cancel anytime in your Apple ID settings ACCOUNT AND SUPPORT Sign in with Apple or Google Support: https://callio-app.com/support Privacy: https://callio-app.com/privacy Terms: https://callio-app.com/terms Callio is not affiliated with Google, Apple, or any business it calls. Business listings and phone numbers are provided by Google Maps.
BIG Reader
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BIG Reader helps you read and understand any printed document — letters, bills, medicine labels, forms, and more. Made for seniors and anyone who finds small print hard to read. Point your camera at a page. BIG Reader captures it, turns it into crisp, HUGE text, and scrolls it gently at your own pace. No more squinting, no more guessing. MADE FOR COMFORT • Huge, clear text with adjustable size and line spacing • Gentle auto-scroll reading at the speed you choose • Light and dark reading themes • One big SCAN button — no confusing menus MAKE IT SIMPLE (AI) • One tap turns a confusing document into a short, plain-English summary • Key facts, amounts, dates, and phone numbers are kept exactly as written • Entirely optional — the original text is always the default YOUR LIBRARY • Every scan is saved on your device • Search, rename, and reopen documents any time • Private by design: your documents are stored only on your phone PREMIUM • Try BIG Reader with 20 free scans • Go unlimited with Premium: $4.99/month or $29.99/year • Payment is charged to your Apple account. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the period. Manage or cancel any time in your App Store settings. Privacy policy: https://big-reader-backend.rork.app/privacy Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ If a document matters, you deserve to understand it. BIG Reader makes that easy.
Screenshots
Verdict
The clearest difference is iOS requirement: Callio at 15.0 against BIG Reader's 18.0. On price, 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
Both are free to download. Callio sells 2 in-app purchases, starting at $9.99 per month and BIG Reader sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Callio | BIG Reader |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (18 ratings) — better | — |
| Positive reviews | 90.0% of reviews | — |
| Number of ratings | 18 — better | — |
| Update frequency | Every 5 days | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 95 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Canzhen Zheng | RICARDO DAVID CURTIS |
In-app purchases
Callio
- Callio Premium Plan$9.991 Month
- Callio Premium Annual$49.991 Year
BIG Reader
- Premium Monthly$4.991 Month
- Premium Yearly$29.991 Year









