SuppRankedOlly vs One A Day: Amazon sales compared
Estimated Amazon revenue, units and category ranks for both brands, side by side. Updated October 15, 2026.
On Amazon, Olly brings in an estimated $5.8M/mo versus $2.8M/mo for One A Day, about 2.1× as much as its rival (modeled estimates, Oct 15, 2026). Olly also sells more units (~354K vs ~139K a month) across 34 ranked products to 12. They meet in 4 Best Sellers lists: Olly leads in 3 and One A Day in 1. One A Day has the higher average rating (4.57 vs 4.49).
Head to head
| Metric | Olly | One A Day |
|---|---|---|
| Est. revenue/mo | $5.8M | $2.8M |
| Est. units/mo | 354K | 139K |
| Overall rank (score) | #11 | #38 |
| Rank by est. revenue | #14 | #33 |
| SuppRanked score | 76.4 | 61.8 |
| Best-selling products | 34 | 12 |
| Categories ranked in | 16 | 4 |
| #1 category ranks | 0 | 0 |
| Avg rating | 4.49 | 4.57 |
| Total reviews | 342K | 195K |
| Gummy share | 65% | 17% |
Shared categories Est. revenue/mo in each Best Sellers top 100 · best position
| Category | Olly | One A Day |
|---|---|---|
| Multivitamins | $2.1M | $1.6M |
| Vitamins | $2.1M | $1.2M |
| Prenatal Vitamins | $572K | $1.2M |
| Vitamins, Minerals & Supplements | $890K | $627K |
Top products
Olly
One A Day
FAQ
Which sells more on Amazon, Olly or One A Day?
By SuppRanked's estimates, Olly sells more: about $5.8M/mo in Amazon revenue versus $2.8M/mo for One A Day. These are SuppRanked's modeled estimates from public Amazon Best Sellers ranks and list prices (October 15, 2026), not official Amazon sales data.
Who sells more multivitamins on Amazon, Olly or One A Day?
In the Multivitamins Best Sellers top 100, Olly leads with ~$2.1M/mo estimated, against ~$1.6M/mo for One A Day. Estimates only.