Adjust the slider. Pick a date range. See what the numbers actually show versus what the marketing says.
Built from the actual monthly yield figures in the Old Mutual fund documents. Fees and withholding tax are layered in so the number you see is closer to what you would actually keep.
Investment settings
Balance over time
Return breakdown
What the wrapper hides
Based on actual Old Mutual USD Money Market Fund monthly yields (Jan 2022 – Sept 2025). Fees per fact sheet: 1.50% + 0.30% p.a. (excl VAT). Withholding tax 15% on net interest per investor account. Past performance is not indicative of future results.
The ad says US$10. The fund documents say the minimum initial deposit is US$20, with top-ups from US$10. Something is sitting between the user and the fund — likely pooling many accounts together to meet that threshold.
What looks like a savings wallet is built on top of a unit trust. The Old Mutual USD Money Market Fund pools investor money and puts it into local USD instruments. The wallet experience sits on top of that.
There is a 30-day minimum investment period. After that, withdrawals can take up to 14 working days to process. In the worst case, getting your money out could take several weeks after the lock-up ends.
The marketing leads with 12%+. The fund documents say returns are not guaranteed and past performance does not predict future results. The yield moves with market interest rates. When rates fall, so does the return.
The fund charges 1.50% per year in management fees plus 0.30% in other charges. On a 13% gross return, fees alone take more than one in every eight dollars earned — before tax is even considered.
The fact sheet mentions withholding tax on earned income. At 15%, that is another cut on top of the fees. The headline number is the gross yield. What you actually take home is something lower.
The Old Mutual fund has a minimum investment that is higher than US$10. So how does Omari offer US$10 entry? The most likely answer is pooling. Instead of sending each user's deposit to the fund separately, Omari probably collects deposits until the combined total is large enough to invest as one.
Each user would need to meet the fund's minimum on their own. At US$10, most could not.
Small deposits from many people combine into one investment that meets the fund's requirements.
Each user sees their own balance in the app. The fund likely sees only Omari as the single investor.
Pooling means each individual does not need to meet the fund's minimum on their own. That is what makes the US$10 entry point possible. The fund itself would not accept it.
The platform can pay out a withdrawal from its own float while the fund redemption is still processing in the background. The user sees a simpler experience. The actual mechanics take longer.
Platforms like this typically earn in a few ways — a share of the fund's management fees, a margin between the fund's actual yield and what they advertise, or returns on money sitting in the platform before it reaches the fund.
This is not a new idea. Many well-known financial apps sit between the user and a traditional financial product — handling the interface while a bank or fund manager handles the actual investment.
Each of these products packages a traditional financial product inside a simpler consumer experience. The branding is different. The underlying model is the same.
Every layer adds something. But every layer also adds distance between you and your money.
Rather than a simple wallet feature, the product may be closer to:
That structure can lower the barrier to investing. It also means the product is more complex underneath than it appears on the surface.
Your money does not sit in an account waiting to be claimed. It goes into a money market fund, which puts it to work in treasury bills and bank instruments. That makes this an investment, not a savings account. The distinction matters when things go wrong.
The fund earns what the market pays. In early 2022, the monthly yield was as low as 0.4%. You can see that in the calculator above. The 12%+ in the ad reflects recent conditions. It is not a guaranteed number for the future.
First, a 30-day minimum holding period. Then up to 14 working days for the withdrawal to process. In practice, that could mean waiting six weeks from the moment you decide you want your money back.
1.8% per year does not sound like much. But it is deducted regardless of performance. On a 13% gross yield, that is roughly one in seven dollars of earnings going to fees — before tax. Use the calculator to see the cumulative effect over your chosen period.
The account is in USD, but the money does not leave the country. The fund invests in local banks and Zimbabwean treasury instruments. The USD denomination reduces currency risk. The underlying exposure to the local financial system remains.