Simply Sensitivity Checks runs several tiered discounts that suit different basket sizes, with the headline offer being 20% off orders over $100. This is the best choice for anyone spending more than $100, though shoppers with smaller baskets or those buying specific multi-packs will find better savings elsewhere.
Spending under $100: If you're buying a single test or smaller order, neither the 20% deal nor the broader percentage discounts will apply. Your best option is to sign up for the newsletter, which will give you access to special offers and promotions that can supplement your purchase.
Spending $100 or more: The 20% off orders over $100 deal becomes available and will save you the most money on standard purchases. A $100 order would save you $20, while a $150 order would save you $30. This outpaces the 10% and 5% deals available on all orders.
Buying a 5-pack: If your cart contains a 5-pack, the extra 25% off bonus applies to that specific product. Compare this against the 20% off on your total order value. A 5-pack priced at $50 would save you $12.50 with the bundle discount, versus no savings on the 20% threshold deal since you're under $100. However, if you're combining the 5-pack with other items to reach $100 or more, you should calculate whether the $100+ discount on your entire basket or the 25% bonus on just the 5-pack gives the larger total saving.
Buying a twin pack: Similarly, the extra 10% off a twin pack applies as a bundle bonus. Use the same comparison approach: if the twin pack alone or combined with other items totals $100 or more, compare the 10% bundle saving against the 20% order-wide discount.
General 10% and 5% discounts: These apply to your entire purchase. The 10% offer will save more than the 5%, so always choose the 10% option if neither the $100+ threshold nor a bundle deal applies.
Discounts on the Sensitivity Test Plan: A separate offer gives up to 75% off this specific product, which may represent a larger saving than the standard discounts if you're purchasing that test.
Only one discount applies at checkout, so compare the options in your basket before you buy. Calculate the final total under each offer that qualifies and go with whichever produces the biggest saving.