Methodology and sourcing

What we record

We record public list prices of business SaaS and consumer subscriptions. Discounts and promotions are excluded.

Source types

We use four types: official notices, news reports, web archives and official pricing pages. Every change has at least one source.

Verification

Only records confirmed by a source are published. Unconfirmed records are not shown.

Gaps in records

Periods without a confirmed price are shown as gaps, not estimates.

Regions and currencies

Each language edition shows that region's list price first. Without one, the USD list price is shown, with no conversion.

How metrics are calculated

Total increase

(current price − first recorded price) ÷ first recorded price

Average annual increase

(current ÷ first recorded)^(1 ÷ years recorded) − 1

Average time between increases

mean months between consecutive increases. Not calculated with one increase.

Next-increase indicator

months since last increase ÷ average interval. Below 0.5 Low, below 0.9 Medium, otherwise High. It is not a forecast.

Compared with category

difference in points between the annual increase and the category median

Affiliate links

Some alternative links are affiliate links. Alternative lists show services with affiliate links first, then lowest total increase. Price records and category rankings do not depend on affiliation.