Honest Comparison

Best SMS Follow-Up App for Solar Sales Reps (2026)

TL;DR

For solar sales reps who text leads from the field, FollowUp is the best-fit tool: it sends from the rep's own iPhone via iMessage, uses AI to filter replies, and includes ringless voicemail drops on the Pro tier. The runners-up fit different shapes of solar team. Close fits inside-sales solar orgs that live in a CRM all day. GoHighLevel fits solar lead-gen agencies that want one platform for funnels, calendars, and SMS. OpenPhone fits small solar teams that need a shared business line first and SMS follow-up second. None of the others send from the rep's own iPhone. That is FollowUp's primary differentiation for door-to-door and field reps.

Quick verdict: who should pick which

Choose FollowUp if

Texts come from your own iPhone number, so homeowners see a familiar contact
AI reads every reply between appointments so you only respond when it matters
Ringless voicemail for follow-up after a homeowner ghosts the door knock
Free tier covers a typical day on the doors before you commit to paying

Look elsewhere if

Inside-sales solar orgs with reps at desks → consider Close
Solar lead-gen agencies running funnels + ads → consider GoHighLevel
Small teams that also need a shared business phone line → consider OpenPhone
Mass texting to opted-in lists (event signups, etc.) → consider SimpleTexting

Feature comparison

Feature	FollowUp	Alternatives
Texts from rep's own iPhone	Yes (Pro tier, iMessage)	No (Close, GoHighLevel, OpenPhone, SimpleTexting all use provisioned numbers)
AI reply classification	Yes	Limited or beta in most
Ringless voicemail	Yes (Pro tier)	GoHighLevel via integrations; others no
Solar-specific features	Vertical landing + workflow templates	None solar-native; all are horizontal
Free tier	Yes	HubSpot CRM has a free tier; others no
TCPA quiet hours	Per-recipient timezone, all 50 states	Configurable on most
Setup time	Minutes (iOS app)	Hours to days for CRM-based tools
Built for field reps	Yes: primary buyer	Most are inside-sales or marketing-org tools

When to use each

FollowUp

FollowUp is the best fit for the typical solar field rep: door-knocks during the day, drives to appointments, only checks the phone between stops. The Pro tier sends texts via iMessage from the rep's own number, so when the homeowner sees the text it's from the same number they already have in their phone from the door knock. The AI reads replies in the background. The rep opens the app and sees a short list of homeowners ready to talk.

The alternatives

Close is the best fit for inside-sales solar teams running outbound campaigns from a desk all day, where the workflow is dial → text → log → repeat and the built-in dialer earns its price. GoHighLevel is the best fit for solar lead-gen agencies that want one platform to run client funnels, calendars, email sequences, and SMS. OpenPhone is the best fit when the team's first need is a shared business line for the office, with SMS follow-up as a secondary use.

Pricing

Pricing varies widely by tool and team shape. FollowUp has a free tier (3 blasts/day, 10 recipients each), then per-rep paid tiers. Close, OpenPhone, and HubSpot are per-seat. GoHighLevel is flat per agency plus Twilio usage. SimpleTexting is credit-based. For a single solar field rep evaluating tools, the free tiers (FollowUp; HubSpot CRM but not Sales Hub SMS) are the cheapest places to start.

Frequently asked questions

What's the best SMS follow-up app for solar sales reps?

For field reps who text leads from their own iPhone, FollowUp is the best fit. It's the only one of the major tools that sends via iMessage from the rep's actual phone number, has AI reply classification built in, and includes ringless voicemail. Other tools (Close, GoHighLevel, OpenPhone, SimpleTexting) all send from a provisioned business number, which homeowners recognize as a tool-sent message.

Is FollowUp specifically built for solar?

FollowUp serves several field-sales verticals: solar, real estate, roofing, pest control, and home security. There is a solar-specific landing page (myfollowup.io/solar) and the workflow templates are tuned for typical solar follow-up cadences (post-knock, post-appointment, post-quote). It is not exclusively a solar tool, but solar reps are a primary user.

Why does sending from a personal iPhone matter for solar?

Solar lead conversion depends on trust. When a homeowner sees a text from the same number they already have from the door knock, the message reads as personal. When they see a text from an unknown business number, it reads as a tool-sent message and reply rates drop. iMessage on the rep's own number is the closest you can get to a real personal text, while still automating the cadence.

Do these tools handle TCPA for solar door-to-door?

FollowUp enforces per-recipient quiet hours by timezone across all 50 states. Most other tools (Close, GoHighLevel, OpenPhone, SimpleTexting, Follow Up Boss) have configurable quiet hours but place the onus on the user to set them up correctly. For door-to-door solar where the lead's timezone may differ from the rep's, automatic per-recipient handling avoids the most common TCPA mistakes.

What about ringless voicemail for solar?

FollowUp Pro tier includes ringless voicemail drops. GoHighLevel can do RVM via third-party integrations. Close, HubSpot, OpenPhone, Follow Up Boss, and SimpleTexting do not natively offer RVM. For solar reps following up with homeowners who ghosted the door knock, RVM is one of the few channels that still gets attention.

Try FollowUp free

Free tier includes 3 SMS blasts per day with up to 10 recipients each. No credit card required.

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