Compare apps
UpdatedDuolingo: Learn Languages, Gizmo: AI Tutor, Arbor Parent App and SimpleStudy: Exams & Revision, side by side in the App Store charts.
Duolingo: Learn Languages
Gizmo: AI Tutor
Arbor Parent App
SimpleStudy: Exams & Revision
That's the most: 4 apps. Remove one to add another.
Sign in to compare 30 and 90 days of history.
Highlights
From the latest charts. Each one needs a clear leader.
Duolingo: Learn Languages ranks highest in Free · Education in the United Kingdom: #1, ahead of Arbor Parent App at #2.
Arbor Parent App gained the most in Free · Education in the United Kingdom over 7 days: up 33 places.
Duolingo: Learn Languages charts in the most countries: 11 of the 11 countries we track.
Duolingo: Learn Languages held the steadiest position in Free · Education in the United Kingdom over 7 days: in the chart at every check, moving 0 places between checks on average.
Side by side
Ranks and changes are in Free · Education in the United Kingdom, unless a row says otherwise.
Rank history
Free · Education in the United Kingdom, the last 7 days.
United Kingdom · Free · Education, 8 snapshots since 29 Oct. Duolingo: Learn Languages: best #1, latest #1; Gizmo: AI Tutor: best #3, latest #3; Arbor Parent App: best #2, latest #2; SimpleStudy: Exams & Revision: best #68, latest #68.
Show ranks by dateHide ranks by date
| Checked | Duolingo: Learn Languages | Gizmo: AI Tutor | Arbor Parent App | SimpleStudy: Exams & Revision |
|---|---|---|---|---|
| 5 Nov 2026 | #1 (number one) | #3 | #2 | #68 |
| 4 Nov 2026 | #1 (number one) | #3 | #2 | #75 |
| 3 Nov 2026 | #1 (number one) | #3 | #2 | #85 |
| 2 Nov 2026 | #1 (number one) | #5 | #3 | — |
| 1 Nov 2026 | #1 (number one) | #15 | #34 | — |
| 31 Oct 2026 | #1 (number one) | #13 | #44 | — |
| 30 Oct 2026 | #1 (number one) | #9 | #38 | — |
| 29 Oct 2026 | #1 (number one) | #9 | #35 | — |
By country
Free · Education in every tracked country where at least one of these apps is in it. Change and "a week ago" are over 7 days.
| Country | Duolingo: Learn Languages | Gizmo: AI Tutor | Arbor Parent App | SimpleStudy: Exams & Revision | Ahead |
|---|---|---|---|---|---|
| United States | #1 (number one)No change#1 a week ago · best #1 | #14Down 1 place#13 a week ago · best #11 | Not in it | Not in it | Duolingo: Learn Languages |
| United Kingdom | #1 (number one)No change#1 a week ago · best #1 | #3Up 6 places#9 a week ago · best #3 | #2Up 33 places#35 a week ago · best #1 | #68Not enough history yetNot in it a week ago · best #68 | Duolingo: Learn Languages |
| Canada | #1 (number one)No change#1 a week ago · best #1 | #5Up 1 place#6 a week ago · best #4 | Not in it | Not in it | Duolingo: Learn Languages |
| Australia | #2Down 1 place#1 a week ago · best #1 | #13Down 2 places#11 a week ago · best #9 | Not in it | Not in it | Duolingo: Learn Languages |
| Germany | #1 (number one)No change#1 a week ago · best #1 | Not in it | Not in it | Not in it | Duolingo: Learn Languages · only one in it |
| France | #1 (number one)No change#1 a week ago · best #1 | #68Not enough history yetNot in it a week ago · best #63 | Not in it | Not in it | Duolingo: Learn Languages |
| Japan | #1 (number one)No change#1 a week ago · best #1 | Not in it | Not in it | Not in it | Duolingo: Learn Languages · only one in it |
| India | #2No change#2 a week ago · best #2 | Not in it | Not in it | Not in it | Duolingo: Learn Languages · only one in it |
| Brazil | #1 (number one)No change#1 a week ago · best #1 | Not in it | Not in it | Not in it | Duolingo: Learn Languages · only one in it |
| Mexico | #1 (number one)No change#1 a week ago · best #1 | #63Down 9 places#54 a week ago · best #32 | Not in it | Not in it | Duolingo: Learn Languages |
| Spain | #2No change#2 a week ago · best #1 | Not in it | Not in it | Not in it | Duolingo: Learn Languages · only one in it |
By category
Each app in its own category's Free chart in the United Kingdom. Duolingo: Learn Languages, Gizmo: AI Tutor, Arbor Parent App and SimpleStudy: Exams & Revision are all in Education, so their ranks there compare directly.
Versions
The current version from the App Store, and every update we've seen ship since we started tracking each app.
Duolingo: Learn Languages
- Current version
- 7.147.1
- 4 Nov 2026
- Released
- 13 Nov 2012
Updates since we started tracking it (8 Oct 2026)
- 7.146.1 → 7.147.14 Nov 2026
- 7.145.1 → 7.146.128 Oct 2026
- 7.144.0 → 7.145.121 Oct 2026
- 7.143.0 → 7.144.012 Oct 2026
- 7.142.0 → 7.143.08 Oct 2026
Gizmo: AI Tutor
- Current version
- 3.2.143
- 31 Oct 2026
- Released
- 17 Feb 2022
Updates since we started tracking it (8 Oct 2026)
- 3.2.141 → 3.2.14331 Oct 2026
- 3.2.133 → 3.2.14127 Oct 2026
- 3.2.109 → 3.2.13318 Oct 2026
Arbor Parent App
- Current version
- 40
- 15 Sep 2026
- Released
- 18 Apr 2019
Updates since we started tracking it (8 Oct 2026)
No new version seen yet.
SimpleStudy: Exams & Revision
- Current version
- 2.5.0
- 30 Oct 2026
- Released
- 29 Dec 2023
Updates since we started tracking it (3 Nov 2026)
No new version seen yet.
Ranks come from Apple's public top 100 charts, checked once a day. Appulse Index isn't affiliated with Apple.