What is the best exam preparation app for iPhone?

Astra AI: Study & Exam Prep, S tier, ranked #1 of 40, rated 4.8 by 4,843 people.

Which exam preparation apps are free?

40 of 40 are free to download: Astra AI: Study & Exam Prep (S), General Ed Diploma Prep 2026 (S), DMV Genie: Permit Test 2026 (S), UWorld Medical Exam Prep (S) and more. 21 of them sell in-app purchases. 1 reports no in-app purchases.

Which exam preparation app has the best App Store rating?

BoardVitals Medical Exam Prep at 4.9 from 10,210 ratings.

AppTierList › All lists › Exam Preparation

Best Exam Preparation Apps for iPhone (2026)

40 apps ranked S through F · Updated 2026-10-19 · Ranked by AppTierList, computed, never sold · JSON

Astra AI: Study & Exam Prep is the top-ranked of 40 exam preparation apps on iPhone, at S tier with 4.8/5 from 4,843 ratings.

1
Astra AI: Study & Exam PrepS
Free download · ★ 4.8 · 4,843 ratings · score 94
2
General Ed Diploma Prep 2026S
Free download · ★ 4.9 · 7,271 ratings · score 94
3
DMV Genie: Permit Test 2026S
Free + IAP · ★ 4.8 · 184,073 ratings · score 93
4
UWorld Medical Exam PrepS
Free download · ★ 4.7 · 4,134 ratings · score 91
5
Zutobi: Permit & Driving PrepA
Free + IAP · ★ 4.7 · 238,320 ratings · score 90

What belongs in this list

Prepare for a specific exam by practicing and reviewing the material that will be tested.

Not here: general flashcards alone; a study planner or timer alone; interview question practice alone; a general AI chatbot that could be asked for quiz questions alone; a textbook-style reading library alone

More lists: Best CDL Test Prep Apps · Best Permit Test Prep Apps

How we pick

For this list we ask the App Store the same searches a person would, in several countries, and keep every app it returns. A model reads each app's listing and rejects the ones that only mention the use case. Every app that stays is scored out of 100 from four parts, each 0 to 100 and averaged with no weights: its App Store rating, how many people rated it, where the App Store itself ranks it for this list's searches, and how recently its current version shipped. An app showing Apple's Editors' Choice badge gets a fifth part of 100, which can only lift its score. Tiers follow fixed score bands: S from 90, A from 80, B from 70, C from 60, D from 50, F below. The list's leader is S if it scores 80 or more. On a list of 20 or more ranked apps, a tier from S to D takes in new apps only up to a quarter of the top 40: an app pushed out of a full tier falls to the next tier with room, and F takes the rest. An app already in a tier keeps its place while the tier is at most 2 apps over a quarter; past that, only the apps over that margin go down, lowest score first. Equal scores share a tier, and no app has a better tier than an app ranked above it. An app keeps its tier until its score passes the band edge by more than 1 point, or a full tier or the order above moves it. Only the top 40 of a list get a tier. Read the full method →

Compare every app

1
Astra AI: Study & Exam PrepS
Free download · ★ 4.8 · 4,843 ratings · score 94 · best in class
2
General Ed Diploma Prep 2026S
Free download · ★ 4.9 · 7,271 ratings · score 94 · best in class
3
DMV Genie: Permit Test 2026S
Free + IAP · ★ 4.8 · 184,073 ratings · score 93 · best in class
4
UWorld Medical Exam PrepS
Free download · ★ 4.7 · 4,134 ratings · score 91 · best in class
5
Zutobi: Permit & Driving PrepA
Free + IAP · ★ 4.7 · 238,320 ratings · score 90 · excellent
6
BoardVitals Medical Exam PrepA
Free + IAP · ★ 4.9 · 10,210 ratings · score 90 · excellent
7
CDL Exam Prep 2026: PracticeA
Free + IAP · ★ 4.9 · 27,613 ratings · score 86 · excellent
8
CompTIA Security+ Exam PrepA
Free + IAP · ★ 4.9 · 6,611 ratings · score 86 · excellent
9
NCE Exam Prep 2026 | EZPrepA
Free download · ★ 4.9 · 3,539 ratings · score 84 · excellent
10
FNP Exam Mastery | Prep 2026A
Free + IAP · ★ 4.9 · 13,220 ratings · score 84 · excellent
11
Dearborn Real Estate Exam PrepA
Free + IAP · ★ 4.8 · 13,140 ratings · score 84 · excellent
12
Prepry - ARDMS & CCI Exam PrepA
Free download · ★ 4.8 · 3,837 ratings · score 84 · excellent
13
CDL Prep Practice Test GenieA
Free download · ★ 4.8 · 14,459 ratings · score 83 · excellent
14
Pocket Prep Nursing 2026A
Free + IAP · ★ 4.8 · 9,023 ratings · score 82 · excellent
15
Pocket Prep Professional 2026A
Free download · ★ 4.8 · 7,038 ratings · score 82 · excellent
16
Pocket Prep IT & CybersecurityB
Free + IAP · ★ 4.8 · 5,041 ratings · score 81 · good
17
EMT Prep 2026 - Practice ExamsB
Free download · ★ 4.8 · 11,345 ratings · score 81 · good
18
AMTA Exam PrepB
Free download · ★ 4.9 · 8,937 ratings · score 80 · good
19
Becker’s CPA Exam ReviewB
Free · ★ 4.8 · 12,417 ratings · score 80 · good
20
Accuplacer Exam Training 2026B
Free download · ★ 4.9 · 2,953 ratings · score 80 · good
21
Sharpen - College Exam PrepB
Free download · ★ 4.7 · 3,283 ratings · score 80 · good
22
CDL Help: CDL Prep Test 2026B
Free + IAP · ★ 4.9 · 5,369 ratings · score 80 · good
23
Pocket Prep Medical 2026B
Free + IAP · ★ 4.9 · 6,561 ratings · score 79 · good
24
CDL Prep - Practice Test 2026B
Free download · ★ 4.6 · 3,351 ratings · score 78 · good
25
Study.comB
Free download · ★ 4.2 · 3,827 ratings · score 74 · good
26
CDL Permit: Practice Test 2026B
Free + IAP · ★ 4.7 · 18,168 ratings · score 73 · good
27
Aceable Drivers Ed & MoreB
Free download · ★ 4.9 · 105,937 ratings · score 72 · good · provisional
28
DMV WRITTEN TESTC
Free download · ★ 4.8 · 137,119 ratings · score 72 · situational · provisional
29
CDL Test Prep 2026 Class A BC
Free + IAP · ★ 4.9 · 48,408 ratings · score 71 · situational · provisional
30
ASVAB Practice Test By ABCC
Free download · ★ 4.9 · 28,932 ratings · score 71 · situational · provisional
31
DMV Practice Test 2026 myDMVC
Free download · ★ 4.6 · 111,065 ratings · score 71 · situational · provisional
32
Archer Review NCLEXC
Free + IAP · ★ 4.9 · 22,682 ratings · score 70 · situational · provisional
33
DMV Permit Test Prep - 2026C
Free + IAP · ★ 4.9 · 21,157 ratings · score 70 · situational · provisional
34
Aceable Real Estate, InsuranceC
Free + IAP · ★ 4.9 · 14,798 ratings · score 70 · situational · provisional
35
Pocket Prep Behavioral HealthC
Free + IAP · ★ 4.8 · 17,940 ratings · score 70 · situational · provisional
36
Sporty's Pilot TrainingC
Free + IAP · ★ 4.9 · 11,036 ratings · score 70 · situational · provisional
37
Pocket Prep EMS 2026C
Free + IAP · ★ 4.8 · 15,960 ratings · score 70 · situational · provisional
38
USCIS Civics Test AppC
Free + IAP · ★ 4.9 · 13,289 ratings · score 70 · situational · provisional
39
Saunders Comp Review NCLEX RNC
Free download · ★ 4.8 · 12,571 ratings · score 70 · situational · provisional
40
ATI TEAS Mastery | Test 2026D
Free + IAP · ★ 4.8 · 12,886 ratings · score 69 · weak · provisional

Beyond the top 40

84 more, not ranked yet

New in the last 30 days

Questions people ask

What is the best exam preparation app for iPhone?: Astra AI: Study & Exam Prep, S tier, ranked #1 of 40, rated 4.8 by 4,843 people.
Which exam preparation apps are free?: 40 of 40 are free to download: Astra AI: Study & Exam Prep (S), General Ed Diploma Prep 2026 (S), DMV Genie: Permit Test 2026 (S), UWorld Medical Exam Prep (S) and more. 21 of them sell in-app purchases. 1 reports no in-app purchases.
Which exam preparation app has the best App Store rating?: BoardVitals Medical Exam Prep at 4.9 from 10,210 ratings.
How many exam preparation apps reach S or A tier?: 15 of 40. Tiers follow fixed score bands: S from 90, A from 80, B from 70, C from 60, D from 50, F below. The list's leader is S if it scores 80 or more. On a list of 20 or more ranked apps, a tier from S to D takes in new apps only up to a quarter of the top 40: an app pushed out of a full tier falls to the next tier with room, and F takes the rest. An app already in a tier keeps its place while the tier is at most 2 apps over a quarter; past that, only the apps over that margin go down, lowest score first. Equal scores share a tier, and no app has a better tier than an app ranked above it. An app keeps its tier until its score passes the band edge by more than 1 point, or a full tier or the order above moves it. Only the top 40 of a list get a tier.