Stock Price Alerts on Your Phone and Watch

What an Alert Can Watch

Each alert is one symbol, one timeframe and one or more condition rows. The rows are exactly the nine presets from the screener: price above or below a moving average (SMA, EMA or WMA), a moving average crossover, RSI above or below a threshold, price at an N-day high or low, volume above a number, and price above or below a value. A condition means the same thing in an alert as it does in a screen.

You can also give an alert a custom formula and no rows at all, the way a Pine Script alertcondition works. The formula is validated as you type, so a typo shows up before you save, not when nothing ever fires.

When It Fires and When It Re-arms

An alert fires on the crossing. If SPY is already above 700 when you save "Price above 700", nothing happens until price drops back below and crosses up again. The app says this under the form, because an alert that fires the instant you save it teaches you to ignore it.

After it fires, the alert shows as fired and waits. It re-arms only once price has moved 0.1% back past the level it fired at. That small margin stops a price hovering a cent either side of a line from notifying you over and over.

Each alert row also tells you when it could not be checked. If the provider has not returned bars yet it reads, for example, "No data for SPY yet", instead of looking exactly like a healthy alert that simply has not triggered.

How Often It Checks, Device by Device

For anything where a minute matters, keep the app running on a desktop as well as your phone.

• Mac and Windows app: every 60 seconds by default while the app is running, with the status line showing how many alerts are being watched and when they were last checked. Check now runs them immediately.
• iPhone and iPad: checked while the app is open, and in the background when iOS schedules it. iOS decides the timing of background refresh, so it is less frequent and less predictable than 60 seconds.
• Android: a background service checks roughly every 60 seconds.
• Data always comes from the provider you connected in the app, with your own keys.

What a Locked Phone Shows

When the app is unlocked, a notification says exactly what happened, for example "SPY: Price above 700 at 744.78".

When you have turned on the app lock, notifications leave out the symbol, the price and the condition entirely, so anyone glancing at your lock screen or your wrist sees only that an alert fired. One part of the app decides that for every notification, so no single screen can forget to hide it.

Alerts and Your Watchlist on Your Watch

Alert notifications on iPhone and Android reach a paired Apple Watch or Wear OS watch the same way your phone's other notifications do, so a fired alert taps your wrist without any extra setup beyond allowing notifications.

The watch apps also show your watchlist. On Apple Watch there is an app and a complication; on Wear OS there is an app, a tile and a complication. The phone sends the same watchlist snapshot its home screen and Lock Screen widgets use, directly to the watch, with no MyLinedChart server in between.

• Allow notifications when the app asks, on the phone.
• Check the phone's watch app settings mirror MyLinedChart notifications.
• Add the MyLinedChart complication or tile to a watch face if you want the watchlist at a glance.

Turning an Alert Into a Decision

An alert should start a short check, not a trade. Pair each alert with the two or three things that must also be true before the setup counts, as in A+ Setup Alerts and Checklists: Reduce Screen Time Without Missing Best Trades. To find which symbols deserve an alert in the first place, run your setups across your watchlist first: Screen Your Watchlist With Your Own Rules.

MyLinedChart is read-only and never places, changes or cancels orders.

Can I get MyLinedChart stock alerts on my Apple Watch?

Yes. Alert notifications on your iPhone appear on a paired Apple Watch like the phone's other notifications, and the Apple Watch app and complication show your watchlist. Wear OS works the same way with an Android phone.

Why did my alert not fire when I saved it?

Alerts fire when the condition becomes true, not while it is already true. If price is already above your level, the alert waits for it to cross back and cross again.

How often are alerts checked?

Every 60 seconds by default while the desktop app is running, roughly every 60 seconds by the Android background service, and on iPhone whenever iOS schedules background refresh or the app is open.

Can an alert use RSI or a moving average instead of price?

Yes. Alerts use the same nine presets as the screener, including SMA, EMA and WMA levels and crossovers, RSI thresholds, N-day highs and lows and volume, plus a custom formula.