Flow21 Systems vs Sybill
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Flow21 Systems
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The Flow21 Systems Mobile App is your ultimate tool for growing your small business. Designed for small businesses and teams, our app provides seamless access to the tools you need to stay connected, streamline operations, and achieve tech-enabled growth. With a unified inbox, you can manage customer conversations across SMS, email, web chat, and social media—all in one place. The contact management system helps you organize and segment your database with smart tagging and lists. Appointment scheduling becomes effortless with integrated calendars and booking tools. Improve your online presence with review management features to request, monitor, and respond to customer feedback in real-time. Automate customer follow-ups and campaigns with built-in marketing tools, saving time and boosting efficiency. Whether you’re responding to customers, managing leads, or tracking progress, the Flow21 Systems app empowers you to stay in control wherever you are. Download today and unlock the power of startup-inspired tools to scale smarter, faster, and stronger.
Sybill
This AI-powered platform automatically captures sales conversations, generating summaries, updating CRMs, and drafting follow-up emails. It provides deal insights to help revenue teams optimize their sales process.
- AI-generated call summaries
- Automatic CRM updates
- Deal insights
- Follow-up email drafting
- Sales conversation capture
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Sybill captures your sales conversations and turns them into action. Get AI-generated call summaries, automatic CRM updates, deal insights, and follow-up emails -- all from a single meeting. Built for revenue teams that move fast.
Screenshots
Verdict
The clearest difference is update cadence: Sybill at every 11 days against Flow21 Systems's every 2 months. Flow21 Systems's advantage is iOS requirement (16.6 vs 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. Neither carries in-app purchases, so what you see is what you pay.
Flow21 Systems ships an update every 2 months, Sybill every 11 days. The most recent releases landed on September 12, 2026 and September 20, 2026 respectively.
| Parameter | Flow21 Systems | Sybill |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (8 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 8 — better |
| Update frequency | Every 2 months | Every 11 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 335 MB | 48 MB |
| Age rating | 17+ | 4+ |
| Developer | Flow21 Systems | Sybill Inc. |
In-app purchases
Flow21 Systems
No in-app purchases
Sybill
No in-app purchases









