What is the best scientific calculation app for iPhone?

Calculator+, S tier, ranked #1 of 29, rated 4.7 by 1,734,445 people.

Which scientific calculation apps are free?

25 of 29 are free to download: Calculator+ (S), Calculator= (S), Calculator Air: AI Math Solver (S), Scientific Calculator Plus 991 (S) and more. 13 of them sell in-app purchases.

Which scientific calculation app has the best App Store rating?

GraphNCalc83 at 4.9 from 4,037 ratings.

AppTierList › All lists › Scientific Calculation

Best Scientific Calculation Apps for iPhone (2026)

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

Part of Calculation.

Calculator+ is the top-ranked of 29 scientific calculation apps on iPhone, at S tier with 4.7/5 from 1,734,445 ratings.

1
Calculator+S
Free + IAP · ★ 4.7 · 1,734,445 ratings · score 98
2
Calculator=S
Free download · ★ 4.6 · 359,200 ratings · score 95
3
Calculator Air: AI Math SolverS
Free + IAP · ★ 4.7 · 84,035 ratings · score 95
4
Scientific Calculator Plus 991S
Free + IAP · ★ 4.7 · 12,512 ratings · score 94
5
Calculator with History +S
Free download · ★ 4.7 · 25,291 ratings · score 93

What belongs in this list

Do advanced math such as trigonometry, logarithms, exponents and roots on a calculator.

Not here: a basic four-function calculator alone; construction calculation alone; math problem solving from photos alone; a cost estimator alone; a unit converter alone

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
Calculator+S
Free + IAP · ★ 4.7 · 1,734,445 ratings · score 98 · best in class
2
Calculator=S
Free download · ★ 4.6 · 359,200 ratings · score 95 · best in class
3
Calculator Air: AI Math SolverS
Free + IAP · ★ 4.7 · 84,035 ratings · score 95 · best in class
4
Scientific Calculator Plus 991S
Free + IAP · ★ 4.7 · 12,512 ratings · score 94 · best in class
5
Calculator with History +S
Free download · ★ 4.7 · 25,291 ratings · score 93 · best in class
6
Calculator +S
Free + IAP · ★ 4.6 · 10,238 ratings · score 91 · best in class
7
Calculator #A
Free + IAP · ★ 4.6 · 36,038 ratings · score 88 · excellent
8
Calculator for iPad+A
Free + IAP · ★ 4.5 · 126,002 ratings · score 86 · excellent
9
CalculatorA
Free + IAP · ★ 4.5 · 146,772 ratings · score 86 · excellent
10
Calculator - Pad EditionA
Free + IAP · ★ 4.7 · 361,890 ratings · score 85 · excellent
11
Graphing Calculator 84: Calc84A
Free download · ★ 4.6 · 5,054 ratings · score 84 · excellent
12
Graphing Calculator X84A
Free + IAP · ★ 4.5 · 50,058 ratings · score 82 · excellent
13
Taculator 84 Graphing CalcA
Free + IAP · ★ 4.5 · 7,642 ratings · score 81 · excellent
14
Calc Pro - The Best CalculatorB
Free download · ★ 4.6 · 4,720 ratings · score 81 · good
15
Calculator ∞B
$5.99 + IAP · ★ 4.7 · 6,379 ratings · score 80 · good
16
Calculator: No Ads / Ad-FreeB
Free + IAP · ★ 4.7 · 4,773 ratings · score 80 · good
17
CalculatorB
Free download · ★ 3.1 · 9,936 ratings · score 76 · good
18
Graphing Calculator Plus AIB
$5.99 · ★ 4.6 · 12,057 ratings · score 74 · good
19
Calculator for iPad!C
Free download · ★ 4.7 · 61,124 ratings · score 70 · situational
20
Calculator Plus #1C
Free download · ★ 4.8 · 5,085 ratings · score 69 · situational · provisional
21
CALC Smart Calculator ±C
Free download · ★ 4.8 · 2,370 ratings · score 67 · situational · provisional
22
Haseba CalculatorC
Free download · ★ 4.6 · 3,815 ratings · score 63 · situational · provisional
23
Calculator +C
Free download · ★ 4.6 · 4,583 ratings · score 61 · situational
24
GraphNCalc83D
$12.99 · ★ 4.9 · 4,037 ratings · score 57 · weak · provisional
25
Calculator!D
$0.99 · ★ 4.8 · 4,278 ratings · score 56 · weak
26
CalConvert: Currency ConverterD
Free download · ★ 4.6 · 6,452 ratings · score 54 · weak · provisional
27
Calculator Pro+ for iPadF
Free + IAP · ★ 4.4 · 61,542 ratings · score 48 · avoid · provisional
28
Sci:Pro CalculatorF
Free download · ★ 4.8 · 3,893 ratings · score 43 · avoid · provisional
29
Calculator 3.0F
Free + IAP · ★ 4.7 · 3,728 ratings · score 42 · avoid · provisional

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Questions people ask

What is the best scientific calculation app for iPhone?: Calculator+, S tier, ranked #1 of 29, rated 4.7 by 1,734,445 people.
Which scientific calculation apps are free?: 25 of 29 are free to download: Calculator+ (S), Calculator= (S), Calculator Air: AI Math Solver (S), Scientific Calculator Plus 991 (S) and more. 13 of them sell in-app purchases.
Which scientific calculation app has the best App Store rating?: GraphNCalc83 at 4.9 from 4,037 ratings.
How many scientific calculation apps reach S or A tier?: 13 of 29. 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.