Instantly AI vs Sybill
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Instantly AI
This app provides on-the-go email management. Read replies, quickly respond or forward messages, and search your inbox using various filters.
- Read emails on the go
- Quickly reply to emails
- Forward emails
- Search emails with filters
- Manage Unibox
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Instantly app allows you to read the replies on the go, quickly reply or forward emails, as well as search the emails based on different filters.
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 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.
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.
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.
| Parameter | Instantly AI | Sybill |
|---|---|---|
| Price | Free | Free |
| Rating | 2.9 (36 ratings) | 5.0 (8 ratings) — better |
| Positive reviews | 58.9% of reviews | 100.0% of reviews — better |
| Number of ratings | 36 — better | 8 |
| Update frequency | Every 2 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.4 — better | 18.0 |
| Further details — not scored | ||
| Size | 44 MB | 61 MB |
| Age rating | 4+ | 4+ |
| Developer | Foo Monk LLC | Sybill Inc. |
Customer experience
Instantly AI
Sybill
Bugs and requests
Instantly AI
Reported bugs
15 issues- 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
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- Leads don't stay labeled
- Refreshing the inbox lags
- Workspaces lag when switching
- Button to send replies disappears or hides
- Cannot delete emails from inbox via the app
- Cannot SEND emails via the app
- Number 3 key triggers Macro
- Autoscrolling doesn't work
- Paste doesn't work 7/10 times
- Unfixable error when trying to switch to a different workspace unibox
Requested features
10 requests- 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
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- See campaign stats on mobile
- Create campaigns on mobile
- Edit campaign details on mobile
- Add functionality for 'Other' tab emails
- View campaign performance in app
Sybill
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Instantly AI
No in-app purchases
Sybill
No in-app purchases
