AI Index / Scheduling and booking tools / History

Scheduling and booking tools — AI Recommendation History

What AI assistants recommended for scheduling and booking tools, date by date. Every ranking we publish is frozen the day it publishes, so this is a record of what was said — not a re-computation of what today's data would say about the past.

Record: 26 dated snapshots · Aug 14, 2026 – Sep 8, 2026

Answer archive Methodology Data studies JSON

What changed

Computed by comparing each dated snapshot with the one before it. Share moves smaller than 1pp are treated as noise and left out — the same threshold that suppresses trend arrows on the ranking.

Sep 8, 2026vs Sep 7, 2026

No change above the noise floor.

Sep 7, 2026vs Sep 6, 2026

No change above the noise floor.

Sep 6, 2026vs Sep 5, 2026

No change above the noise floor.

Sep 5, 2026vs Sep 4, 2026

No change above the noise floor.

Sep 4, 2026vs Sep 3, 2026

No change above the noise floor.

Sep 3, 2026vs Sep 2, 2026

Methodology change: extraction rules 4-7 → 7 between these dates. Differences below may reflect the rule change rather than a change in what AI recommends — see the methodology changelog.

▲Zoom moved #6 → #4
▼Setmore moved #7 → #9
▼Doodle moved #4 → #5
▼Google Calendar moved #5 → #6
▲Outlook moved #8 → #7
▲Square moved #9 → #8
▼Doodle -5pp (37.1% → 32.1%)
▼Google Calendar -5pp (37.1% → 32.1%)
▼Setmore -3.6pp (28.6% → 25%)
▲Zoom +3.5pp (28.6% → 32.1%)
▼Cal.com -2.8pp (45.7% → 42.9%)
▼Microsoft -1.5pp (22.9% → 21.4%)
▼Calendly -1.4pp (80% → 78.6%)
▲Acuity +1.4pp (48.6% → 50%)

Sep 2, 2026vs Sep 1, 2026

▲ INSquare entered the top 10 (#11 → #9)
▼ OUTSimplyBook.me left the top 10 (#10 → #12)
▼Microsoft moved #5 → #10
▲Doodle moved #8 → #4
▼Google Calendar moved #3 → #5
▲Setmore moved #9 → #7
▲Square moved #11 → #9
▼SimplyBook.me moved #10 → #12
▲Cal.com moved #4 → #3
▼Outlook moved #7 → #8
▼Microsoft -18.4pp (41.3% → 22.9%)
▼Google Calendar -15.3pp (52.4% → 37.1%)
▼Outlook -14pp (39.7% → 25.7%)
▼Zoom -11.1pp (39.7% → 28.6%)
▼Acuity -5.4pp (54% → 48.6%)
▼Cal.com -5.1pp (50.8% → 45.7%)
▼SimplyBook.me -4.1pp (27% → 22.9%)
▼Setmore -3.1pp (31.7% → 28.6%)
▼Doodle -2.6pp (39.7% → 37.1%)
▼Calendly -2.5pp (82.5% → 80%)

Sep 1, 2026vs Aug 31, 2026

No change above the noise floor.

Aug 31, 2026vs Aug 30, 2026

No change above the noise floor.

Aug 30, 2026vs Aug 29, 2026

No change above the noise floor.

Aug 29, 2026vs Aug 28, 2026

No change above the noise floor.

Aug 28, 2026vs Aug 27, 2026

▲Microsoft moved #7 → #5
▲Acuity moved #3 → #2
▼Google Calendar moved #2 → #3
▼Zoom moved #5 → #6
▼Outlook moved #6 → #7
▼Google Calendar -4.7pp (57.1% → 52.4%)
▼Zoom -3.2pp (42.9% → 39.7%)
▼Outlook -3.2pp (42.9% → 39.7%)
▲Calendly +2.1pp (80.4% → 82.5%)
▼Microsoft -1.6pp (42.9% → 41.3%)
▼SimplyBook.me -1.6pp (28.6% → 27%)
▼Acuity -1.4pp (55.4% → 54%)

Aug 27, 2026vs Aug 26, 2026

Methodology change: extraction rules 4 → 4-7 between these dates. Differences below may reflect the rule change rather than a change in what AI recommends — see the methodology changelog.

▼Microsoft moved #4 → #7
▲Acuity moved #5 → #3
▲Zoom moved #7 → #5
▼Cal.com moved #3 → #4
▼Microsoft -14.2pp (57.1% → 42.9%)
▼Google Calendar -11.5pp (68.6% → 57.1%)
▼Outlook -8.5pp (51.4% → 42.9%)
▼Cal.com -7.1pp (57.1% → 50%)
▼Doodle -6.4pp (45.7% → 39.3%)
▼Calendly -5.3pp (85.7% → 80.4%)
▼Setmore -5pp (37.1% → 32.1%)
▼Zoom -2.8pp (45.7% → 42.9%)
▼SimplyBook.me -2.8pp (31.4% → 28.6%)
▼Acuity -1.7pp (57.1% → 55.4%)

Aug 26, 2026vs Aug 25, 2026

▲ INSimplyBook.me entered the top 10 (#13 → #10)
▼ OUTYouCanBook.me left the top 10 (#10 → #12)
▲SimplyBook.me moved #13 → #10
▲Microsoft moved #6 → #4
▼YouCanBook.me moved #10 → #12
▼Acuity moved #4 → #5
▼Outlook moved #5 → #6
▲Zoom moved #8 → #7
▼Doodle moved #7 → #8
▲Microsoft +6.1pp (51% → 57.1%)
▲Zoom +4.9pp (40.8% → 45.7%)
▼YouCanBook.me -4.1pp (32.7% → 28.6%)
▲Acuity +4pp (53.1% → 57.1%)
▼Setmore -3.7pp (40.8% → 37.1%)
▲SimplyBook.me +2.8pp (28.6% → 31.4%)

Aug 25, 2026vs Aug 24, 2026

No change above the noise floor.

Aug 24, 2026vs Aug 23, 2026

No change above the noise floor.

Aug 23, 2026vs Aug 22, 2026

▲ INYouCanBook.me entered the top 10 (#11 → #10)
▼ OUTGoogle Meet left the top 10 (#10 → #11)
▲Acuity moved #6 → #4
▼Microsoft moved #4 → #6
▲Doodle moved #8 → #7
▼Zoom moved #7 → #8
▲YouCanBook.me moved #11 → #10
▼Google Meet moved #10 → #11
▼Google Meet -5.3pp (33.9% → 28.6%)
▲Setmore +5.1pp (35.7% → 40.8%)
▼Microsoft -4.4pp (55.4% → 51%)
▲Doodle +3.8pp (41.1% → 44.9%)
▼Zoom -3.8pp (44.6% → 40.8%)
▼Outlook -2.6pp (53.6% → 51%)
▼Calendly -1.8pp (87.5% → 85.7%)
▼Cal.com -1.8pp (58.9% → 57.1%)
▲Google Calendar +1.5pp (67.9% → 69.4%)

Aug 22, 2026vs Aug 21, 2026

▲ INGoogle Meet entered the top 10 (#14 → #10)
▼ OUTYouCanBook.me left the top 10 (#10 → #11)
▲Google Meet moved #14 → #10
▲Google Calendar moved #3 → #2
▼Cal.com moved #2 → #3
▲Outlook moved #6 → #5
▼Acuity moved #5 → #6
▼YouCanBook.me moved #10 → #11
▲Google Calendar +10.8pp (57.1% → 67.9%)
▲Google Meet +7.9pp (26% → 33.9%)
▲Outlook +6.8pp (46.8% → 53.6%)
▲Microsoft +3.5pp (51.9% → 55.4%)
▲Acuity +3pp (50.6% → 53.6%)
▲Zoom +3pp (41.6% → 44.6%)

Aug 21, 2026vs Aug 20, 2026

No change above the noise floor.

Aug 20, 2026vs Aug 19, 2026

No change above the noise floor.

Aug 19, 2026vs Aug 18, 2026

No change above the noise floor.

Aug 18, 2026vs Aug 17, 2026

No change above the noise floor.

Aug 17, 2026vs Aug 16, 2026

No change above the noise floor.

Aug 16, 2026vs Aug 15, 2026

No change above the noise floor.

Aug 15, 2026vs Aug 14, 2026

No change above the noise floor.

The ranking, date by date

Top 10 on each archived date, exactly as published. Cite a date and it stays true: snapshots are append-only, and a correction appends a new revision rather than overwriting the original.

Sep 8, 202628 sampled answers · window 2026-08-11 – 2026-09-08 · rules v7

#1Calendly78.6%
#2Acuity50%
#3Cal.com42.9%
#4Zoom32.1%
#5Doodle32.1%
#6Google Calendar32.1%
#7Outlook25%
#8Square25%
#9Setmore25%
#10Microsoft21.4%

Sep 7, 202628 sampled answers · window 2026-08-10 – 2026-09-07 · rules v7

#1Calendly78.6%
#2Acuity50%
#3Cal.com42.9%
#4Zoom32.1%
#5Doodle32.1%
#6Google Calendar32.1%
#7Outlook25%
#8Square25%
#9Setmore25%
#10Microsoft21.4%

Sep 6, 202628 sampled answers · window 2026-08-09 – 2026-09-06 · rules v7

#1Calendly78.6%
#2Acuity50%
#3Cal.com42.9%
#4Zoom32.1%
#5Doodle32.1%
#6Google Calendar32.1%
#7Outlook25%
#8Square25%
#9Setmore25%
#10Microsoft21.4%

Sep 5, 202628 sampled answers · window 2026-08-08 – 2026-09-05 · rules v7

#1Calendly78.6%
#2Acuity50%
#3Cal.com42.9%
#4Zoom32.1%
#5Doodle32.1%
#6Google Calendar32.1%
#7Outlook25%
#8Square25%
#9Setmore25%
#10Microsoft21.4%

Sep 4, 202628 sampled answers · window 2026-08-07 – 2026-09-04 · rules v7

#1Calendly78.6%
#2Acuity50%
#3Cal.com42.9%
#4Zoom32.1%
#5Doodle32.1%
#6Google Calendar32.1%
#7Outlook25%
#8Square25%
#9Setmore25%
#10Microsoft21.4%

Sep 3, 202628 sampled answers · window 2026-08-06 – 2026-09-03 · rules v7

#1Calendly78.6%
#2Acuity50%
#3Cal.com42.9%
#4Zoom32.1%
#5Doodle32.1%
#6Google Calendar32.1%
#7Outlook25%
#8Square25%
#9Setmore25%
#10Microsoft21.4%

Sep 2, 202635 sampled answers · window 2026-08-05 – 2026-09-02 · rules v4-7

#1Calendly80%
#2Acuity48.6%
#3Cal.com45.7%
#4Doodle37.1%
#5Google Calendar37.1%
#6Zoom28.6%
#7Setmore28.6%
#8Outlook25.7%
#9Square25.7%
#10Microsoft22.9%

Sep 1, 202663 sampled answers · window 2026-08-04 – 2026-09-01 · rules v4-7

#1Calendly82.5%
#2Acuity54%
#3Google Calendar52.4%
#4Cal.com50.8%
#5Microsoft41.3%
#6Zoom39.7%
#7Outlook39.7%
#8Doodle39.7%
#9Setmore31.7%
#10SimplyBook.me27%

Aug 31, 202663 sampled answers · window 2026-08-03 – 2026-08-31 · rules v4-7

#1Calendly82.5%
#2Acuity54%
#3Google Calendar52.4%
#4Cal.com50.8%
#5Microsoft41.3%
#6Zoom39.7%
#7Outlook39.7%
#8Doodle39.7%
#9Setmore31.7%
#10SimplyBook.me27%

Aug 30, 202663 sampled answers · window 2026-08-02 – 2026-08-30 · rules v4-7

#1Calendly82.5%
#2Acuity54%
#3Google Calendar52.4%
#4Cal.com50.8%
#5Microsoft41.3%
#6Zoom39.7%
#7Outlook39.7%
#8Doodle39.7%
#9Setmore31.7%
#10SimplyBook.me27%

Aug 29, 202663 sampled answers · window 2026-08-01 – 2026-08-29 · rules v4-7

#1Calendly82.5%
#2Acuity54%
#3Google Calendar52.4%
#4Cal.com50.8%
#5Microsoft41.3%
#6Zoom39.7%
#7Outlook39.7%
#8Doodle39.7%
#9Setmore31.7%
#10SimplyBook.me27%

Aug 28, 202663 sampled answers · window 2026-07-31 – 2026-08-28 · rules v4-7

#1Calendly82.5%
#2Acuity54%
#3Google Calendar52.4%
#4Cal.com50.8%
#5Microsoft41.3%
#6Zoom39.7%
#7Outlook39.7%
#8Doodle39.7%
#9Setmore31.7%
#10SimplyBook.me27%

Aug 27, 202656 sampled answers · window 2026-07-30 – 2026-08-27 · rules v4-7

#1Calendly80.4%
#2Google Calendar57.1%
#3Acuity55.4%
#4Cal.com50%
#5Zoom42.9%
#6Outlook42.9%
#7Microsoft42.9%
#8Doodle39.3%
#9Setmore32.1%
#10SimplyBook.me28.6%

Aug 26, 202635 sampled answers · window 2026-07-29 – 2026-08-26 · rules v4

#1Calendly85.7%
#2Google Calendar68.6%
#3Cal.com57.1%
#4Microsoft57.1%
#5Acuity57.1%
#6Outlook51.4%
#7Zoom45.7%
#8Doodle45.7%
#9Setmore37.1%
#10SimplyBook.me31.4%

Aug 25, 202649 sampled answers · window 2026-07-28 – 2026-08-25 · rules v4

#1Calendly85.7%
#2Google Calendar69.4%
#3Cal.com57.1%
#4Acuity53.1%
#5Outlook51%
#6Microsoft51%
#7Doodle44.9%
#8Zoom40.8%
#9Setmore40.8%
#10YouCanBook.me32.7%

Aug 24, 202649 sampled answers · window 2026-07-27 – 2026-08-24 · rules v4

#1Calendly85.7%
#2Google Calendar69.4%
#3Cal.com57.1%
#4Acuity53.1%
#5Outlook51%
#6Microsoft51%
#7Doodle44.9%
#8Zoom40.8%
#9Setmore40.8%
#10YouCanBook.me32.7%

Aug 23, 202649 sampled answers · window 2026-07-26 – 2026-08-23 · rules v4

#1Calendly85.7%
#2Google Calendar69.4%
#3Cal.com57.1%
#4Acuity53.1%
#5Outlook51%
#6Microsoft51%
#7Doodle44.9%
#8Zoom40.8%
#9Setmore40.8%
#10YouCanBook.me32.7%

Aug 22, 202656 sampled answers · window 2026-07-25 – 2026-08-22 · rules v4

#1Calendly87.5%
#2Google Calendar67.9%
#3Cal.com58.9%
#4Microsoft55.4%
#5Outlook53.6%
#6Acuity53.6%
#7Zoom44.6%
#8Doodle41.1%
#9Setmore35.7%
#10Google Meet33.9%

Aug 21, 202677 sampled answers · window 2026-07-24 – 2026-08-21 · rules v4

#1Calendly87%
#2Cal.com58.4%
#3Google Calendar57.1%
#4Microsoft51.9%
#5Acuity50.6%
#6Outlook46.8%
#7Zoom41.6%
#8Doodle41.6%
#9Setmore36.4%
#10YouCanBook.me31.2%

Aug 20, 202677 sampled answers · window 2026-07-23 – 2026-08-20 · rules v4

#1Calendly87%
#2Cal.com58.4%
#3Google Calendar57.1%
#4Microsoft51.9%
#5Acuity50.6%
#6Outlook46.8%
#7Zoom41.6%
#8Doodle41.6%
#9Setmore36.4%
#10YouCanBook.me31.2%

Aug 19, 202677 sampled answers · window 2026-07-22 – 2026-08-19 · rules v4

#1Calendly87%
#2Cal.com58.4%
#3Google Calendar57.1%
#4Microsoft51.9%
#5Acuity50.6%
#6Outlook46.8%
#7Zoom41.6%
#8Doodle41.6%
#9Setmore36.4%
#10YouCanBook.me31.2%

Aug 18, 202677 sampled answers · window 2026-07-21 – 2026-08-18 · rules v4

#1Calendly87%
#2Cal.com58.4%
#3Google Calendar57.1%
#4Microsoft51.9%
#5Acuity50.6%
#6Outlook46.8%
#7Zoom41.6%
#8Doodle41.6%
#9Setmore36.4%
#10YouCanBook.me31.2%

Aug 17, 202677 sampled answers · window 2026-07-20 – 2026-08-17 · rules v4

#1Calendly87%
#2Cal.com58.4%
#3Google Calendar57.1%
#4Microsoft51.9%
#5Acuity50.6%
#6Outlook46.8%
#7Zoom41.6%
#8Doodle41.6%
#9Setmore36.4%
#10YouCanBook.me31.2%

Aug 16, 202677 sampled answers · window 2026-07-19 – 2026-08-16 · rules v4

#1Calendly87%
#2Cal.com58.4%
#3Google Calendar57.1%
#4Microsoft51.9%
#5Acuity50.6%
#6Outlook46.8%
#7Zoom41.6%
#8Doodle41.6%
#9Setmore36.4%
#10YouCanBook.me31.2%

Aug 15, 202677 sampled answers · window 2026-07-18 – 2026-08-15 · rules v4

#1Calendly87%
#2Cal.com58.4%
#3Google Calendar57.1%
#4Microsoft51.9%
#5Acuity50.6%
#6Outlook46.8%
#7Zoom41.6%
#8Doodle41.6%
#9Setmore36.4%
#10YouCanBook.me31.2%

Aug 14, 202677 sampled answers · window 2026-07-17 – 2026-08-14 · rules v4

#1Calendly87%
#2Cal.com58.4%
#3Google Calendar57.1%
#4Microsoft51.9%
#5Acuity50.6%
#6Outlook46.8%
#7Zoom41.6%
#8Doodle41.6%
#9Setmore36.4%
#10YouCanBook.me31.2%

Read any date directly

Every archived date is machine-readable at /api/index/scheduling-and-booking-tools/as-of/<YYYY-MM-DD>, which returns the ranking as it stood, with the extraction version and revision it was published under. Dates before the record begins return no_record rather than a recomputation — we do not reconstruct history on demand and present it as what we said. See what the engines actually said.

[ORBATOR]