Private tours
Your own guide, your own pace, priced per group rather than per person on most listings.
Prices run from $67 to $1211, and half of the 40 priced listings cost $199 or less. Most take 4 hours to 8 hours. The best reviewed with at least 100 reviews is Istanbul: Private Customized Tour (4.8 from 323 reviews).
For the operators we researched and recommend, see our food tours and cooking classes in Istanbul, or the experiences overview.