Slack · Android · free · no root
See deleted Slack messages.
They used "Delete message". You still have it. Nail It keeps a private copy of every Slack message that reaches your notifications, including the original text of edited messages, and tells you the moment something disappears: they deleted it, you didn't.
Great for keeping a personal record of DMs and mentions that get edited or removed later.
Not on Google Play yet. Android 8.0+. Nothing leaves your phone.
How to see deleted Slack messages with Nail It
Install & allow
Download the APK from this site, open it, and switch on Notification access for Nail. No account, no root.
Keep using Slack
Nail runs in the background and saves every Slack message that hits your notifications, in a private database on your phone.
Get the alert
When a sender uses "Delete message" or edits a message, Nail notices and sends "Dana deleted a message · tap to view". The message stays on your board.
Honest answers
How can I see deleted Slack messages?
Install Nail It and allow notification access. From then on every Slack message that reaches your notifications is saved on your phone. If the sender later uses "Delete message", the message disappears from Slack but stays in Nail, marked "they deleted it", and Nail sends you an alert.
Does it work without root?
Yes. Nail It only reads Android notifications. No root, no access to Slack's database, no Accessibility service, no account.
Does it capture every Slack message?
No. It is a notification history: messages that never produced a notification (muted chats, a chat open on screen, messages read on another device, a collapsed "999 messages" summary) are not captured. Nail says so honestly.
Can I see what a Slack message said before it was edited?
Yes. Slack lets senders edit at any time. Nail detects the edit, keeps every version with the time it was seen, and shows the original struck through under the new text.
What about photos, voice notes and videos?
Images attached to notifications are kept. With Media Rescue switched on, Nail also copies photos, videos, voice notes, stickers and documents from Slack's media folder the moment they arrive, so a delete cannot take them back.
Is my data safe?
Everything stays on your phone. Nail has no accounts, no cloud, no analytics on your messages. Its only connection is a daily check of this site for a new version, and you can switch that off.