Brandwave

Spark vs Superhuman:Which is more popular by branded search?

In August 2026, Superhuman had more branded searches than Spark among email clients worldwide. Superhuman was estimated to have 110K branded searches compared to Spark’s 22.2K, and held an 11.3% Share of Search versus Spark’s 2.3%. These are worldwide searches for English-language branded terms.

Share of Search among email clients worldwide in August 2026Which is more popular in search, Spark or Superhuman?
Spark2.3%22.2K searches
vs
Superhuman11.3%110K searches

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Which is more popular in search, Spark or Superhuman?

Compare the apps people manage email in. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time.

Spark and Superhuman among email clients worldwide, by month

Share of Search by month for Superhuman, Spark. The figures are in the table below the chart.

View monthly share of search table
MonthThunderbirdSuperhumanSparkAirmailNewton
Oct 202587.7%7.9%2.4%1.9%0.08%
Nov 202584.5%11.3%2.3%1.9%0.1%
Dec 202585.8%9.4%2.3%2.3%0.17%
Jan 202684.5%11.3%2.3%1.9%0.1%
Feb 202687.4%9.6%1.6%1.3%0.11%
Mar 202685.1%11.4%1.9%1.5%0.09%
Apr 202686.8%9.5%1.9%1.6%0.17%
May 202688.7%8%2%1.3%0.08%
Jun 202686%9.5%2.3%1.9%0.38%
Jul 202686.5%9.5%2.3%1.6%0.13%
Aug 202684.5%11.3%2.3%1.9%0.07%
Sep 2026—————

How has the Spark and Superhuman comparison changed over the last 12 months?

  • Superhuman was ahead of Spark in every measured month of the 11 months ending August 2026.
  • Across the 11 months ending August 2026, Spark’s estimated Share of Search among email clients worldwide moved from 2.4% to 2.3%, and its estimated monthly branded searches moved from 27.1K to 22.2K.
  • Across the 11 months ending August 2026, Superhuman’s estimated Share of Search among email clients worldwide moved from 7.9% to 11.3%, and its estimated monthly branded searches moved from 90.5K to 110K.

How did search popularity change for email clients worldwide in August 2026?

  1. In August 2026, Superhuman gained estimated Share of Search among email clients worldwide, from 9.5% to 11.3%.

  2. Estimated monthly branded searches for Spark worldwide fell 18.1% over 11 measured months, from 27.1K to 22.2K in August 2026.

How each brand is measured

Brandwave collects information about searches that people make online using Spark’s and Superhuman’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.

Spark

1 branded search term

  • spark email

Superhuman

1 branded search term

  • superhuman

How the Brand Demand Index is measured

Creator with pink hair and a pink jacket

Put your own brand in this comparison

Brandwave tracks your branded demand next to the rival you actually watch, with your campaigns, spend and outcomes on the same timeline.