# Instantly AI vs Sybill

The clearest difference is rating: Sybill at 5.0 against Instantly AI's 2.9. Sybill also leads on review sentiment (100% vs 59%) and update cadence (every 8 days vs every 2 months). Instantly AI's advantage is ratings volume (36 vs 8) and iOS requirement (16.4 vs 18.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Sybill holds the better App Store score, 5.0 against 2.9. Both are backed by a comparable volume of ratings — 36 and 8 respectively. Written reviews point the same way: 59% of Instantly AI's written reviews are positive against 100% of Sybill's.

Instantly AI ships an update every 2 months, Sybill every 8 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Instantly AI | Sybill |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.9 (36 ratings)](https://appshunter.io/ios/app/instantly-ai/id6474658497/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/sybill/id6757768329/reviews)** |
| Number of ratings | **36** | 8 |
| Positive reviews | 58.9% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 8 days** |
| Monetization | Free | Free |
| Size | 44 MB | 61 MB |
| Requires iOS | **16.4** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Foo Monk LLC](https://appshunter.io/developer/1722213325) | [Sybill Inc.](https://appshunter.io/developer/1868839981) |

## What reviewers say

### Instantly AI

[App page](https://appshunter.io/ios/app/instantly-ai/id6474658497)

This app provides on-the-go email management. Read replies, quickly respond or forward messages, and search your inbox using various filters.

**Highlights:** Read emails on the go, Quickly reply to emails, Forward emails, Search emails with filters, Manage Unibox

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Efficient email outreach automation
- 👍 Clean and intuitive interface
- 💡 Powerful features like campaign sequencing and inbox warm-up
- 👍 Unibox for managing multiple inboxes
- 🚀 Quick and easy to use

**What reviewers complain about**

- 💰 Expensive subscriptions and hidden costs
- 🐛 App is basically useless
- 🐛 Cannot sign in
- 🐛 Many bugs and glitches
- 🐛 App can be confusing at first

**Reported bugs**

- Cannot sign in via Google or set password
- Same emails showing up repeatedly in unibox
- No send button for replies on iPhone
- App logs out every time app is closed
- App keeps logging out every few hours

**Requested features**

- More options for campaign visibility
- Ability to change campaign copy in app
- In-depth notification settings
- Add more features to notifications
- Keep me signed in option


### 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 Instantly AI free?

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

### Is Sybill free?

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

### Which has better reviews, Instantly AI or Sybill?

Sybill is rated higher. Instantly AI averages 2.9 out of 5 from 36 ratings, while Sybill averages 5.0 from 8 ratings.

### Do Instantly AI or Sybill have ads?

Neither Instantly AI nor Sybill shows ads.

### Which is updated more often, Instantly AI or Sybill?

Instantly AI ships an update every 2 months, and Sybill every 8 days. Most recently, Instantly AI was updated on October 30, 2026 and Sybill on October 31, 2026.

---

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