Ravi Narula
Analyst · Mike Latimore, Northland Capital
Thank you, Eric, and good afternoon, everyone. I'll start with a review of our fourth quarter fiscal '20 financial results, then provide our outlook for the first quarter and full year fiscal '21. We had strong financial performance in Q4, achieving $40.6 million in revenue, above the high end of our previously issued guidance range of $39.6 million to $40.3 million.
On a year-over-year basis, total revenue grew 17%, driven primarily by Ooma Business. Ooma Business accounted for 42% of total revenue as compared to 30% in the prior year quarter. On a full year basis, total revenue for fiscal '20 was $151.6 million compared to $129.2 million for fiscal '19, achieving 17% growth year-over-year. Revenue from Broadsmart, which was acquired in May 2019 added 5 percentage points of growth to the year. And importantly, net income for the fourth quarter was $1 million, significantly better than our previously issued net income guidance range of breakeven to $400,000. This performance was driven by higher subscription revenue and expense management, while continuing our focus on growth. Net loss for full year fiscal '20 was $672,000 compared to a net loss of $3 million for fiscal '19.
I'll now add additional color to the Q4 revenue. Ooma Business subscription and services revenue in Q4 grew 61% on a year-over-year basis and 38% year-over-year after excluding revenue from Broadsmart.
In the fourth quarter, we added new users in North America from the large customer we had mentioned in our previous earnings calls. We are excited about the continued sales momentum with this customer. And as Eric mentioned earlier, we're engaged on multiple fronts, including conducting a proof-of-concept in a new market. Going forward, we expect further expansion from this opportunity and will provide progress updates in future earnings calls.
Ooma Residential subscription and services revenue in the fourth quarter grew 3% year-over-year and the combined subscription and services revenue from both Ooma Business and Residential grew 22% on a year-over-year basis. Total subscription and services revenue as a percentage of total revenue for the fourth quarter was 92%, up from 89% last year.
Product revenue for the fourth quarter was $3.2 million compared to $3.8 million in the prior year quarter. As a reminder, fourth quarter revenue for fiscal '19 included $1 million of Smart Camera revenue, which we discontinued in October 2019. So adjusted for Smart Camera, our product revenue grew $400,000 year-over-year.
Now some details on our key customer metrics. We had 1,048,000 users at the end of fiscal '20, up from 976,000 users at the end of the prior fiscal year, with 22% of our total users now being business users. For clarity, we define a user as an Ooma Business user or a Residential customer.
Our blended average monthly subscription and services revenue per user, or ARPU, increased 12% to $11.38, up from $10.17 in the prior year quarter as we added higher ARPU customers, including a number of Office Pro customers. We expect ARPU to continue trending upwards as Ooma Business continues to grow.
Annualized exit recurring revenue was $143 million, growing 20% year-over-year. Driven by the strong performance of Ooma Business and stable customer churn, we achieved net dollar subscription retention rate of 100% compared to 99% for the prior year quarter.
Moving to gross margins. Subscription and services gross margins for the fourth quarter of fiscal '20 was 70% and in line with our prior outlook. Product and other gross margins were negative 36% for the fourth quarter of fiscal '20 comparable to the prior year quarter's product margins.
During the fourth quarter, to minimize the impact of coronavirus on our business, we expedited some product shipments from China. As Eric mentioned, we are working closely with our contract manufacturers to mitigate potential supply chain issues. We will continue to monitor and assess the potential risks to our business. To the best of our knowledge, we have reflected the potential impact of this virus in our financial guidance.
Overall, gross margins in the fourth quarter increased to 61% from 58% in the prior year quarter, primarily due to growth in subscription and services revenue of Ooma Business.
Now some commentary on the operating expenses for the quarter. Fourth quarter of fiscal '20 total operating expenses were $24.2 million, up $3.1 million or a 14% year-over-year increase.
Sales and marketing expenses were $12.3 million or 30% of total revenue, up 21% year-over-year. This increase was driven by growth in sales head count and increasing marketing programs to grow Ooma Business.
Research and development expenses were $7.5 million or 19% of total revenue, up 2% year-over-year. As a result of our discontinuing the Smart Camera product and focusing our development effort on to Ooma Business, we are pleased to report that we achieved our R&D expense target of sub-20% of total revenue in Q4.
G&A expenses were $4.3 million or 11% of total revenue compared to $3.6 million for the prior year quarter. Included in fourth quarter fiscal '20 expenses were approximately $400,000 of nonrecurring expenses, including final expenses relating to a certain litigation claim. In the absence of these onetime expenses, G&A expenses would have been roughly flat with the preceding quarter.
During Q4, we achieved net income of $1 million or $0.04 diluted EPS compared to a $0.03 loss per share in the prior year quarter. This increased profitability was due to continued growth in revenue and expense management.
Now on to EBITDA and balance sheet metrics for the fourth quarter. For the fourth quarter of fiscal '20, adjusted EBITDA profit improved significantly to $1.4 million versus a negative EBITDA of $450,000 for the prior year quarter. We ended the fiscal year with total cash and investments of $26.1 million. Cash used in operations for the fourth quarter of fiscal '20 was approximately $800,000 compared to $2.1 million for the same period last year.
This fourth quarter operating cash usage included payment of $1.5 million of restructuring charges undertaken in October. We ended the fiscal year with more than 800 employees and contractors, up from approximately 700 at the end of the prior year.
I'll now provide guidance for the first quarter and full year fiscal '21. Again, our guidance is non-GAAP and has been adjusted for expenses such as stock-based compensation and amortization of intangibles.
First quarter fiscal '21 guidance. After taking into account the current macro environment, we expect total revenue for the first quarter of fiscal '21 to be in the range of $40 million to $40.5 million. We expect non-GAAP net income to range between $500,000 to $1 million. Non-GAAP diluted EPS is expected to be between $0.02 and $0.04. We have assumed 22.9 million weighted average diluted shares outstanding for Q1.
For full year fiscal '21, total revenue for fiscal '21 is expected to be in the range of $167 million to $170 million. This guidance includes year-over-year subscription and services growth rate of approximately 30% for Ooma Business and around 2% to 3% for Residential. We expect non-GAAP net income for fiscal '21 to be in the range of $2 million to $4 million. Non-GAAP diluted EPS is expected to be in the range of $0.09 to $0.17. We have assumed approximately 23.5 million weighted average diluted shares outstanding for fiscal '21.
From a cash flow perspective, we expect to generate breakeven to positive cash from operations during fiscal '21. Subject to seasonal puts and takes, the seasonality can cause cash flows to fluctuate throughout the year, with the first quarter typically requiring higher cash usage, given timing of annual payments.
In closing, we had a strong fiscal '20, both in terms of financial performance and execution, given that we added new customers and integrated Broadsmart into our business. I believe this performance positions us well for strong execution going forward.
With that, I'll pass it back to Eric for some closing remarks. Eric?