Table of Contents
TL;DR
JustCall is a well-rounded business phone system — inbound and outbound calling, IVR, international numbers, dialers, and SMS, with solid CRM integrations. For a support or sales team that needs a full phone system, it is a reasonable pick.
The cost creeps, though: pricing is per user with a 2-seat minimum on annual billing, the power dialer and bulk SMS are gated to the Pro tier and up, and SMS segments are capped per plan with overages beyond that. ReadySMS is pay-per-use, includes the dialer, and handles 10DLC for you.
Short version: full multi-channel phone system for a team? JustCall. SMS-first outbound plus a dialer, no per-seat minimum? ReadySMS.
What JustCall Actually Is
JustCall is a cloud phone system and sales-communication platform. It covers inbound/outbound calling, IVR and routing, local and international numbers, SMS, and power/predictive dialing, with prebuilt integrations into Salesforce, HubSpot, and many other CRMs.
Its breadth is the selling point — it is a phone system first, with SMS and dialing layered in. That also means the features you may care about (power dialer, bulk SMS campaigns, analytics) sit behind the Pro tier or higher, and everything is priced per seat.
Pricing Reality Check
JustCall runs roughly $29–$89/user/month on annual billing: Team ($29, ~500 SMS segments), Pro ($49, ~1,000 segments + power dialer), Pro Plus ($89, AI), and custom Business. Plans require a minimum of 2 users, so the floor is about $58/month, and extra power-dialer seats add ~$20/user. Exceed your SMS-segment allotment and the overage is billed separately.
ReadySMS has no per-seat fee and no minimum seats: registered SMS from $0.0155/segment plus a flat $0.0045 carrier fee — about 2¢ all-in, dropping to $0.0073 all-in at 500K+ segments/month (pricing), the power dialer included, no segment caps to blow through, and 10DLC handled for you. Start with 20 free test sends, and get a $25 credit when you submit 10DLC registration.
Feature Comparison
| Capability | JustCall | ReadySMS |
|---|---|---|
| Full inbound phone system / IVR | Yes — core strength | Outbound dialer + SMS focus |
| International numbers | Yes, many countries | US & Canada focus |
| Pricing model | Per seat, min 2, annual | Pay-per-use, no minimum |
| Power dialer | Pro tier + add-on seats | Included |
| SMS limits | Capped per plan, then overage | No segment cap; pay per segment |
| 10DLC registration | You manage it | Done for you |
| GoHighLevel-native | Via integrations | Native marketplace install |
| Free trial | Limited trial | 20 free test sends + $25 registration credit |
Where JustCall Wins
Be honest about your bottleneck. JustCall is the better tool if:
- You need a full phone system, not just outbound — inbound routing, IVR, voicemail, business hours, the works.
- You need international numbers and calling beyond the US and Canada.
- You live in Salesforce/HubSpot and want JustCall’s mature, prebuilt CRM telephony.
Where ReadySMS Wins
ReadySMS is the better fit if:
- You want outbound SMS + dialing without per-seat minimums. No 2-seat floor, no annual lock, no tier-gated dialer.
- You text a lot. No per-plan SMS cap to blow past — just a low per-segment rate.
- You are on GoHighLevel — native GoHighLevel integration, a built-in power dialer, and done-for-you 10DLC.
- You want compliance handled. 10DLC brand and campaign registration is done for you.