Rebalancy: ETF Rebalancing

Rebalancy: ETF Rebalancing

How many shares to buy

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Released
August 30, 2026
Updated
October 28, 2026

Features

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Set VOO 60% and BND 40%. Rebalancy fetches quotes, compares them with what you hold, and tells you how many shares to buy or sell. It is a calculator you use before you place an order, not a portfolio dashboard. [TWO MODES] • Standard rebalance: buys and sells to bring positions back to target • Contribution rebalance: buys only, from the amount you are investing this time [MARKETS] • US stocks and ETFs, priced in dollars (VOO, BND, VTI), quoted from Yahoo Finance • Taiwan listings and ETFs, priced in New Taiwan dollars (0050, 00878), quoted from the Taiwan Stock Exchange with a fallback source • One strategy covers one market, with no currency conversion between them [SETUP AND CALCULATION] • Target weights are yours to set, totalling 100% • Whole-lot mode for markets that trade in fixed lots • Drift threshold from ±1% to ±10%; nothing is suggested while you are inside it • Cash can be counted as part of the allocation [RECORDS] • Buys, sells and transfers are kept as entries; holdings are derived from them • Record dividends you received • Every rebalance you carry out is kept • Deleted strategies and history go to the trash first [REMINDERS] • Contribution reminder: opens with the amount you plan to invest, using the latest prices • Drift reminder: notifies you when your primary strategy drifts past the threshold, checked ahead of that market's open [STRATEGIES AND ACCOUNTS] • A strategy is one set of target weights. Switching strategies is a different view of the same holdings • Positions with a recorded purchase price show the change against your last buy • Accounts keep each brokerage separate, with transfers between them [WHAT COSTS MONEY] • Free: rebalancing, quotes, transactions, dividends, history, both markets • Rebalancy Pro is a one-time purchase, not a subscription: it lifts the limit of one strategy and one account, and turns on iCloud sync • No ads, no tracking, no account. Data stays on your device, and in your own iCloud private database once sync is on This app is a calculator for your own planning and is not investment advice. Quotes may be delayed; check with your broker before placing an order.
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What's New in Rebalancy

1.4.1

October 28, 2026

Added • Share your allocation as a card: tap Share in the top right to turn your target weights into a portrait image, with days tracked and your return (turn it off, or show the amount instead). No share counts or total value on the card. Friends scan the QR with their camera to create a strategy with the same weights. The image is made on your device and never uploaded. Improved • When creating a strategy, you now name it in the last step, Review & Create, after seeing the full allocation. • Holdings are now sorted by weight, largest first, with cash last, everywhere in the app. Drag-to-reorder in Edit Strategy has been removed. • Execution details now show the fee next to the amount invested. • In History, contribution rows now show the amount invested on the right. Fixed • Taiwan stock trade amounts now round down to the whole NT dollar, matching broker statements. Existing records are corrected automatically.

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Subscriptions & In-App Purchases

$2.99

Rebalancy Pro

Unlock multiple strategies and accounts.