The three automatic tracking models
SMS parsing reads transaction messages on the phone and turns them into expenses. It is fast and common in India, especially on Android, but it asks for SMS access and can struggle with platform differences, duplicate notifications, and bank-template changes.
Account Aggregator uses a regulated consent framework to fetch financial information from supported institutions. It can cover more than expenses, including accounts, cards, investments, loans, and net worth, but it is still an account-linking flow.
Email-alert tracking reads transaction emails from known bank and card senders. It sits between the two: less broad than Account Aggregator, less phone-permission-heavy than SMS parsing, and useful across web and iPhone when bank alert emails exist.
Privacy tradeoffs
SMS trackers should explain whether parsing happens on-device, whether data leaves the phone, and exactly why SMS permission is needed. Account Aggregator products should explain the regulated consent path, data categories fetched, and how consent can be revoked.
Glass Money asks for Google’s read-only inbox access (Gmail OAuth today). It cannot send, delete, or modify mail, and it targets transaction alert mail from known financial senders. That is still sensitive access, so the privacy policy, limited beta, and restricted-scope verification path matter.
Coverage tradeoffs
SMS can be excellent for Android users whose banks send clean transaction messages. Account Aggregator can be excellent for broad account and net-worth coverage where the institution is supported and consent succeeds. Email alerts are excellent when the bank reliably emails UPI, card, and account activity to your inbox.
None of these methods should be treated as complete without reconciliation. Refunds, card-bill payments, self-transfers, failed transactions, duplicate alerts, and statement-only periods all need careful handling.
Platform tradeoffs
The strongest email-alert advantage is platform flexibility. An alert-email workflow can run from the web and support iPhone users without asking for Android SMS access. The strongest SMS advantage is immediacy on Android. The strongest Account Aggregator advantage is breadth beyond spending.
If you mostly want one spending view, start from the least invasive data source that gives you enough coverage. If you want every financial asset and liability in one place, evaluate Account Aggregator products directly.
Historical import
SMS trackers may backfill old SMS messages already on the phone. Account Aggregator can fetch available account history depending on institution and consent. Email tracking can backfill historical alert emails if they remain in the connected inbox.
Glass Money does not offer statement PDF upload as a public-beta product feature. When historical email coverage is incomplete, compare against your own records and add missing activity manually — the practical safety net when an account was SMS-only last year or a bank changed alert senders midstream.
How to decide
Pick the source mix that closes the most verified gaps in your own account list. SMS can be useful on Android, Account Aggregator can broaden supported financial coverage, email alerts work across web and iPhone, and statements or manual entry remain important fallbacks.
For Glass Money specifically, check the supported-bank matrix and declare the accounts that matter. The product should call a view complete only after every included account is current or explicitly dormant; otherwise it discloses that totals may be partial.
Sources and review notes
We use primary sources where possible and review comparison pages quarterly. Product availability and pricing can change, so check each linked source before making a decision.