FollowUp App vs Simplex by SMS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FollowUp App
This app enables businesses to communicate with customers via SMS text messaging, confirming appointments, marketing offers, and generating reviews. It helps save time and resources compared to traditional phone calls and emails.
- Send SMS messages to customers
- Confirm appointments
- Market special offers
- Generate customer reviews
- Text-enable existing business number
- Save time and resources
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98% of texts are opened and 89% of your customer prefer them to phone calls and emails. SMS text messaging is the best way for a business to both reach out to customers and for customers to reach a business. We make it easy, including the ability to text enable your current business phone number. Start connecting with customers today. Start sending text messages to your epoxy customers in seconds, use text & SMS to: Confirm appointments. Market special offers. Connect with customers searching on Google. Convert leads into customers. Save time and resources Still making phone calls to confirm estimates or reach out to new customers? Not only is this process time consuming it’s ineffective and inefficient. Using SMS you and your customers can quickly exchange messages without having to wait for a time when both parties are free. Many customers quickly see upwards of 50% time savings per staff member when using text vs the phone. Generate customer reviews More Reviews = More Customers -- Raise your Google rankings and improve your SEO by automatically generating more positive customer reviews. Fully automated or manual, cross-post great reviews to social media and your website automatically.
Simplex by SMS
This all-in-one platform uses AI to streamline sales and marketing for gym owners. It offers lead generation, automated workflows, reputation management, and a website builder. Seamlessly syncs automated marketing with personal team interaction for a personalized customer experience.
- AI-powered sales and marketing
- Lead generation from multiple sources
- Automated workflows
- Reputation management tool
- Website builder
- CRM/lead management
- 2-way sync with automation
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Calling all gym owners! Are you tired of juggling multiple systems to manage your sales and marketing efforts? Simplex Marketing System is here to revolutionize your gym's marketing game! Our all-in-one platform, powered by advanced AI technology, is designed to help you streamline your sales and marketing processes, increase efficiency, and drive more revenue. Our platform includes features such as lead generation from multiple sources, automated workflows, and a reputation management tool, all designed to build your gym's online presence and grow your customer base. Our website builder and CRM/lead management system allow you to manage all aspects of your gym's marketing and sales in one easy-to-use platform. But what sets Simplex Marketing System apart is our unique 2-way sync with automation. Our platform seamlessly integrates the experience delivered by automated marketing communications with the personal touch delivered by your team. Humans and robots can work together to provide your gym's customers with a personalized experience that drives results. Don't wait any longer to take your gym's marketing efforts to the next level. Join the thousands of businesses who have already discovered the power of Simplex Marketing System and experience the benefits of seamless automation and human interaction today!
Screenshots
Verdict
The clearest difference is ratings volume: FollowUp App at 5 against Simplex by SMS's 1. On price, rating, update cadence and ads 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 — 5.0 for FollowUp App against 5.0 for Simplex by SMS. That said, the two scores are not equally well evidenced: FollowUp App has 5 ratings behind it against 1, so its average is the more settled of the two.
FollowUp App ships an update every 2 months, Simplex by SMS every 3 months. The most recent releases landed on October 3, 2026 and September 22, 2026 respectively.
| Parameter | FollowUp App | Simplex by SMS |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | 1 |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 342 MB | 347 MB |
| Age rating | 4+ | 17+ |
| Developer | Robert Gomez | Simplex Marketing System |
Customer experience
FollowUp App
Simplex by SMS
In-app purchases
FollowUp App
No in-app purchases
Simplex by SMS
No in-app purchases









