Turn your cash savers into investors.

Millions of pounds sit idle in customer cash accounts every day, losing value to inflation. Unused ISA allowance and uninvested cash represent missed opportunities to improve customers' financial outcomes; yet most platforms have no way to act on them.

Whistle helps you identify these opportunities and enables customers to put their money to work through a guided, fully authorised investing experience, seamlessly embedded within your app.

Most digital advice experiences force customers through lengthy questionnaires, generic automation or disruptive handovers to an adviser. Too often, they have to leave the app entirely, breaking the experience and losing momentum.

Whistle keeps customers in your app from first prompt to funded investment. Every recommendation is backed by a named, FCA-regulated adviser, with expert support available whenever it's needed.

Most customers aren't investment experts. They're presented with technical jargon, unfamiliar investment options and multiple portfolios, then expected to decide for themselves. The burden of making the decision still falls on the customer, the very thing they came for advice to avoid.

Whistle delivers a single, personalised recommendation with a clear explanation of why it's right for that customer. Every recommendation explains the chosen investment wrapper, risk profile, portfolio and projected outcomes clearly. A named, FCA-regulated adviser is always available whenever the customer wants expert guidance.

Even after customers decide to invest, many journeys introduce another round of forms, account opening and compliance checks. Every extra step creates another opportunity to abandon the process.

With a single approval, Whistle takes care of everything else. Investment accounts are opened, instructions are prepared and compliance checks run automatically in the background, allowing customers to move from advice to investment without ever leaving your app.

Many investment journeys end somewhere else. Customers are redirected to another platform, asked to log in again, or handed off to a different provider, breaking continuity and weakening engagement.

One tap to authorise. From then on, investments sit alongside savings and everyday banking in the same trusted experience, with ongoing access to their adviser whenever they need support.