Rebalancer

1. Off-appApp Store listingFive screenshots and a description — no trial, no preview
2. DecisionDoes this solve my problem?
   No

   EndNever installedThe listing is the entire pitch
3. Yes
4. ActionInstall
5. Inside the app
6. SheetDisclaimerA notice with one button — nothing to answer
7. ScreenEmpty watchlistOne line, one button, no tour
8. DecisionObvious what to do here?
   No

   EndLeaves with nothingNothing on screen explains a ratio
9. Yes
10. ActionTap Add pair
11. SystemA live pair appearsSeeded and already tracking, not a blank form
12. ActionSwap in your own coins
13. DecisionWorth keeping?
14. No

    1. EndDeletedStraight back to the empty state
    Yes

    1. EndKeptAn alert on it is the next thing to do

1. ActionTap +From the watchlist
2. SheetToken selectorSearch the catalogue
3. ActionPick base
4. ActionPick quote
5. If picked the wrong way round

   1. ActionSwap sidesSame pair, reversed
   1. EndPair is liveTracked from that moment

Two picks, no form. The pair is the only thing the app asks you to create, so I kept it to two decisions — and made the sides swappable instead of expecting people to get the order right first time.

1. ScreenPair detailOpened from the watchlist
2. ActionNew alert
3. SheetPrefilled at the current ratioOpens on today's number
4. DecisionNotifications allowed?
5. Not yet

   1. SystemPermission bannerAsks once; the alert is still saved
   Yes

   1. ActionSet the threshold
   2. EndAlert armed

The prefill is the whole design. An empty field asks “what number?” — prefilled with where the ratio sits right now, it asks “how far from here?” — which is the question I always arrived with myself.

The permission branch saves the alert either way. Making the notification prompt a precondition would have meant losing the thing the person came to do.

1. ScreenPair detailSimulator lives here, not in the list
2. ActionEnter amountsWhat you'd move
3. DecisionMore than two steps?
4. Within Free

   1. EndSee the outcomeBefore committing to anything
   Beyond Free

   1. SheetPaywallPro: unlimited chain steps

The simulator answers “what would this do” without doing it. Free stops at two steps in a chain; deeper chains are where Pro begins — I put the paywall where the tool starts doing planning work, not at the front door.

1. ScreenCoinsIts own tab
2. ActionEnter what you holdEdited in place, hideable
3. SystemPrices move
4. EndTotals recalculateIn the denomination you choose

The only flow here with no branch, and that's the point: Coins is a ledger of what you own. Anything that behaves like an exchange rate belongs to the simulator — keeping those apart is what stops the app from implying it can trade for you.

1. SystemThreshold crossedRatio reaches your number
2. SystemPush deliveredEven with the app closed
3. ScreenOpen and checkChart, holdings, simulator
4. Outside the app
5. Off-appExecute on the exchangeRebalancer never places the order

This is where I drew the product's edge. Rebalancer tells you the moment arrived and shows you the numbers; the trade happens on your exchange. Not a missing feature — a deliberate limit that keeps the app clear of custody, keys and order execution.