Call.fast vs AI Phone Agent ‑ Shopdigits
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 13, 2026 for Call.fast, Nov 2, 2026 for AI Phone Agent.
The short answer
- Paid plans start at $49.99/month for Call.fast and $29/month for AI Phone Agent.
Head to head
Phone number & mobile customer support: Calls, SMS & Voicemail
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Starter
- · 200 call minutes included
- · AI agent, order lookup, Knowledge Base
- · Dedicated US phone number
- · Then $0.25 per minute
Growth
- · 500 call minutes included
- · AI agent, order lookup, Knowledge Base
- · Dedicated US phone number
- · Then $0.25 per minute
Small Shop
- · 1 Employee
- · 1 Phone number (local or toll-free)
- · Android & iOS native apps
- · Unlimited calls within US & Canada
- · Unlimited voicemail
- · Voicemail transcription
Medium Shop
- · 1 Employee
- · 1 Phone number (local or toll-free)
- · AI Voice Agent answering incoming calls
- · Abandoned cart recovery calls
- · Android & iOS native apps
- · Unlimited calls within US & Canada
Enterprise
- · 1 Phone number (local or toll-free)
- · AI Voice Agent answering incoming calls
- · Abandoned cart recovery calls
- · Android & iOS native apps
- · Unlimited Employees
- · Unlimited calls within US & Canada
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureCall.fast gives your store a dedicated phone number answered by an AI agent around the clock. Because it connects to your Shopify store, the agent answers with live data: it finds the caller's order by number, email, or phone and tells them its status, shipment, and tracking. It learns your policies, FAQs, and products automatically when you install, and re-reads your site weekly.
Shopdigits gives your store a dedicated business line — toll-free or local — with calling and texting from the Shopdigits mobile app. When you can't answer, an AI receptionist picks up 24/7. It's grounded in your synced products and orders, so customers get real answers instead of voicemail. It can also call back abandoned checkouts during a window you set, with consent checks and quiet hours built in.
- Answers with live store data: order status, tracking, and product availability
- Learns your policies, FAQs, and products from your site; refreshes them weekly
- Your own dedicated US phone number, with custom agent name and greeting
- Emails you a summary and the caller's number when a call needs a human
- Get a business phone number to make & receive customer calls at low cost.
- Provide support when customer's need it most on their orders viewed in the app.
- iOS and Android supported mobile apps to send and receive SMS and calls.
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  Call.fast |  AI Phone Agent |
|---|---|---|
| Detected stores | Not published | Not published |
| Net store change, 28 days | 0 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Not published |
| Top store countries | Not published | Not published |
Reviews
| Measure | Call.fast | AI Phone Agent |
|---|---|---|
| App Store rating | Not published | 4.4 ★ |
| App Store reviews | Not published | 7 |
| New reviews, 28 days | Not enough data | 1 |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Call.fast | AI Phone Agent |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | $49.99/month | $29/month(ahead) |
| Longest free trial | Not listed | 14 days |
| Plans listed | 2 | 3 |
Listing
| Measure | Call.fast | AI Phone Agent |
|---|---|---|
| Shopify category rank | #141 | #13(ahead) |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | Yes |
| Launched | Jul 17, 2026 | Feb 23, 2021 |
| Languages | 1 | 1 |
| Developer | Realtime Comms Ltd | Decision Trees Inc |
FAQ
Call.fast and AI Phone Agent: common questions
- Is Call.fast or AI Phone Agent cheaper?
- Paid plans start at $49.99/month for Call.fast and $29/month for AI Phone Agent. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Oct 13, 2026 for Call.fast, Nov 2, 2026 for AI Phone Agent; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Oct 13, 2026 for Call.fast, Nov 2, 2026 for AI Phone Agent. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.