Instantly AI vs Spacemail
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
Read full descriptionHide full description
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.
Spacemail
Manage your business email with a fast, intuitive, and secure mobile client. Features smart security, instant notifications, and seamless syncing across devices. Customize your inbox with a profile picture, dark mode, and multi-language support.
- Smart security features
- Instant notifications
- Seamless device sync
- Favorite messages
- Quick swipe actions
- Customizable inbox
- Ad-free experience
Read full descriptionHide full description
Email here, there, and anywhere with Spacemail mobile. Enjoy fast, intuitive business email with smart security, instant notifications, and seamless sync across all your devices. Order made simple Favorite the messages that matter, and use quick swipe actions to manage everything at speed. Your inbox your rules Email your way with a custom profile picture and display name, adaptive dark mode, and multi-language support. Privacy built in Work without distractions in an ad-free inbox, locked down by 2FA and data storage encryption. Get started Enjoy professional email that fits your budget. Choose your plan at spaceship.com, download the app, and sign in to use Spacemail on the go. Legal Privacy policy https://spaceship.com/privacy Terms of service https://spaceship.com/terms Follow us X (Twitter): https://x.com/Spaceship Instagram: https://www.instagram.com/spaceship/ Reddit: https://www.reddit.com/r/SpaceShip
Screenshots
Verdict
The clearest difference is rating: Spacemail at 4.7 against Instantly AI's 2.9. Spacemail also leads on update cadence (every 5 days vs every 2 months) and ratings volume (369 vs 36). Instantly AI's advantage is iOS requirement (16.4 vs 18.0). On price, review sentiment, ads and in-app purchases 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.
Spacemail holds the better App Store score, 4.7 against 2.9. That said, the two scores are not equally well evidenced: Spacemail has 369 ratings behind it against 36, so its average is the more settled of the two. Written reviews point the same way: 59% of Instantly AI's written reviews are positive against 60% of Spacemail's.
Instantly AI ships an update every 2 months, Spacemail every 5 days. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.
| Parameter | Instantly AI | Spacemail |
|---|---|---|
| Price | Free | Free |
| Rating | 2.9 (36 ratings) | 4.7 (369 ratings) — better |
| Positive reviews | 58.9% of reviews | 60.0% of reviews — better |
| Number of ratings | 36 | 369 — better |
| Update frequency | Every 2 months | Every 5 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 | 157 MB |
| Age rating | 4+ | 17+ |
| Developer | Foo Monk LLC | Namecheap, Inc |
Customer experience
Instantly AI
Spacemail
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
Show 10 moreShow fewer
- 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
Show 5 moreShow fewer
- 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
Spacemail
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Instantly AI
No in-app purchases
Spacemail
No in-app purchases
