If your Messages app is full of blue and green bubbles, little labels like “Delivered” or “Edited,” and the occasional red exclamation mark, here’s a clean, up‑to‑date guide to what each thing means — plus quick fixes when something looks off.
Quick reference table
| Symbol / Label | Where you see it | Meaning | What you can do |
|---|---|---|---|
| Blue bubble | Inside a chat | iMessage (Apple‑to‑Apple), end‑to‑end encrypted. | No action. Requires data/Wi‑Fi and Apple ID/iMessage enabled. |
| Green bubble | Inside a chat | SMS/MMS via your carrier (to non‑Apple phones or when iMessage is unavailable). | Fine for basic texts. For higher quality, ensure iMessage is on and data works. |
| “Delivered” | Below your last message | Your message reached Apple’s/iMessage servers and the recipient’s device. | Nothing to do. If it never appears, check connectivity. |
| “Read” + time | Below your last message | Recipient opened the message with Read Receipts turned on. | To disable for yourself: Settings → Messages → Send Read Receipts. |
| “Edited” | Below an edited message | You or they changed the message within the allowed edit window. | Tap to view edits (within the thread) if available. |
| Red exclamation mark (!) + “Not Delivered” | Next to a message bubble | Message didn’t send. | Tap the ! → Try Again or Send as Text Message; check signal/data. |
| Typing indicator (…) bubble | Top of the chat | The other person is typing in that conversation. | Just wait – it disappears when they stop or send. |
| Tapbacks (❤ 👍 👎 😂 !! ?) | Attached to a message | Quick reactions to a specific message. | Long‑press a message to react; tap a reaction to change/remove. |
| “Sent with Slam/Loud/Gentle/Invisible Ink” | Under a message | Bubble/Screen effect used when sending. | Long‑press the send arrow to add or replay effects. |
| Audio message wave + “Kept” | In‑chat audio | Audio messages auto‑expire unless you keep them. | Tap Keep to save; adjust expiry in Settings → Messages. |
| Blue dot | Conversation list | Unread messages in that thread. | Open the thread to clear. |
| Bell with a slash | Conversation list | Hide Alerts is on for that thread (muted). | Swipe left on the thread → Show Alerts or toggle in thread settings. |
| Pin icon | Conversation list | Thread is pinned at the top for quick access. | Long‑press a thread → Pin or drag to unpin. |
| “Report Junk” | Below an SMS from an unknown sender | Apple thinks it’s spam. | Tap to report and delete the message. |
| Maps thumbnail/location arrow | Inside a chat | Location shared in the conversation. | Tap to open in Maps; manage sharing in the contact card. |
Blue vs. green bubbles
Blue means iMessage — Apple’s internet‑based service that uses your data or Wi‑Fi and encrypts messages end‑to‑end. Green means SMS/MMS via your carrier’s network. Green is normal when the other person doesn’t use an iPhone, when you or they have iMessage turned off, or when Apple’s service is temporarily unavailable.
If a normally blue conversation turns green unexpectedly, check Settings → Messages → iMessage. Also confirm mobile data/Wi‑Fi and your Apple ID sign‑in.
Delivered, Read, and Edited
Delivered appears when your message reaches the recipient’s device. Read shows only if the recipient has Read Receipts enabled and they opened the message. If you don’t want others to see when you’ve read their messages, turn off Send Read Receipts in Settings → Messages (you can also control this per‑contact in the thread’s info panel).
Edited appears beneath messages changed within the edit window. Tap it to review the edit history when available.
“Not Delivered” and the red exclamation mark
When you see the red ! icon and “Not Delivered,” your message didn’t send. Common causes include poor signal, no data, iMessage being temporarily down, or the recipient being unreachable.
- Tap the ! and choose Try Again to resend via iMessage.
- Or choose Send as Text Message to fall back to SMS/MMS (green bubble).
- Toggle Airplane Mode off/on and confirm mobile data/Wi‑Fi is working.
- Check Settings → Messages to ensure iMessage is enabled and signed in.
Reactions (Tapbacks) and message effects
Reactions are small badges attached to a specific message: ❤, 👍, 👎, 😂 (labeled “Ha Ha”), !!, and ?. Long‑press any message to react, change, or remove a reaction.
Effects change how a message arrives. Bubble effects include Slam, Loud, Gentle, and Invisible Ink. Screen effects fill the screen with balloons, confetti, lasers, fireworks, and more. Long‑press the send arrow to pick one; tap “Replay” to see an effect again.
Audio messages: waves, timers, and “Kept”
Audio notes show as waveform bubbles and usually expire after a short time. If you tap Keep, you’ll see the Kept label so it won’t auto‑delete. You can change this behavior in Settings → Messages → Expire.
Conversation list icons
- Blue dot: Unread messages in that thread.
- Bell with a slash: Hide Alerts is on for that conversation. You won’t get notifications.
- Pin: The thread is pinned at the top. Long‑press or drag to unpin.
Location, contact cards, and link previews
A map thumbnail or small location arrow indicates someone shared a location. Contact cards show as rectangular “cards” with the person’s name and photo. Links generate rich previews where possible. All of these are normal and safe to tap if you trust the sender.
Privacy controls you should know
- Read Receipts: Settings → Messages → Send Read Receipts. Toggle off to stop showing “Read.”
- Message filtering: Settings → Messages → Unknown & Spam to separate unknown senders.
- Hide Alerts: Open a thread → tap the name/photo → turn Hide Alerts on or off.
FAQ
Why do some group messages show “Delivered” but never “Read”? Because not everyone enables Read Receipts. You’ll only see “Read” for people who turn it on and open the message.
Do blue bubbles always mean better quality? Generally yes: iMessage supports higher‑quality media and is encrypted. But if the other person has limited data, SMS/MMS (green) can be more reliable.
Is there a way to force blue bubbles? No. iMessage requires both sides to be online with iMessage enabled. You can try again later or use FaceTime/Email if urgent.
What does the “…” typing bubble mean if no message arrives? The other person started typing but stopped or sent in another thread/device.
Summary
- Blue = iMessage; Green = SMS/MMS.
- “Delivered” means it reached the device; “Read” means it was opened with receipts on.
- Red ! + “Not Delivered” means retry or send as text; check signal/data.
- Tapbacks and effects are normal reactions/animations you can add via long‑press.
- Use Hide Alerts, Read Receipts, and filters to control privacy and notifications.
