# Flow21 Systems vs Sybill

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.

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.

## The numbers

| Metric | Flow21 Systems | Sybill |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (8 ratings)](https://appshunter.io/ios/app/sybill/id6757768329/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 11 days** |
| Monetization | — | Free |
| Size | 335 MB | 48 MB |
| Requires iOS | **16.6** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Flow21 Systems](https://appshunter.io/developer/1785598054) | [Sybill Inc.](https://appshunter.io/developer/1868839981) |

## What reviewers say

### Flow21 Systems

[App page](https://appshunter.io/ios/app/flow21-systems/id6739488079)

**Features:** macOS Compatibility, Apple Wallet, Vision Pro support

**In-app purchases:** none


### Sybill

[App page](https://appshunter.io/ios/app/sybill/id6757768329)

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.

**Highlights:** AI-generated call summaries, Automatic CRM updates, Deal insights, Follow-up email drafting, Sales conversation capture

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Flow21 Systems free?

Flow21 Systems is free to download, with no in-app purchases.

### Is Sybill free?

Sybill is free to download, with no in-app purchases.

### Do Flow21 Systems or Sybill have ads?

Neither Flow21 Systems nor Sybill shows ads.

### Which is updated more often, Flow21 Systems or Sybill?

Flow21 Systems ships an update every 2 months, and Sybill every 11 days. Most recently, Flow21 Systems was updated on September 12, 2026 and Sybill on September 20, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*