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Best Calculation Apps for iPhone (2026)
Calculator+ is the top-ranked of 40 calculation apps on iPhone, at S tier with 4.7/5 from 1,734,445 ratings.
- 1
Free + IAP · ★ 4.7 · 1,734,445 ratings · score 98 - 2
Free download · ★ 4.6 · 359,200 ratings · score 95 - 3
Free + IAP · ★ 4.9 · 34,428 ratings · score 95 - 4
Free · ★ 4.9 · 409,444 ratings · score 95 - 5
Free · ★ 4.9 · 260,277 ratings · score 94
What belongs in this list
Do everyday arithmetic and number calculations on the phone.
Not here: A scientific calculator alone; A unit converter alone; A math problem solver that only works from photos alone; A cost estimator for a single trade alone; A spreadsheet app alone
More lists: Best Construction Calculation Apps · Best Scientific Calculation 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
- 1Free + IAP · ★ 4.7 · 1,734,445 ratings · score 98 · best in class
- 2Free download · ★ 4.6 · 359,200 ratings · score 95 · best in class
- 3Free + IAP · ★ 4.9 · 34,428 ratings · score 95 · best in class
- 4Free · ★ 4.9 · 409,444 ratings · score 95 · best in class
- 5Free · ★ 4.9 · 260,277 ratings · score 94 · best in class
- 6
Free + IAP · ★ 4.7 · 84,035 ratings · score 93 · best in class - 7
Free download · ★ 4.7 · 25,291 ratings · score 93 · best in class - 8
Free download · ★ 4.7 · 13,840 ratings · score 92 · best in class - 9
Free + IAP · ★ 4.5 · 146,772 ratings · score 92 · best in class - 10
Free download · ★ 4.9 · 22,432 ratings · score 91 · excellent - 11
Free + IAP · ★ 4.7 · 361,890 ratings · score 89 · excellent - 12
Free + IAP · ★ 4.6 · 10,238 ratings · score 89 · excellent - 13
Free download · ★ 4.6 · 4,720 ratings · score 88 · excellent - 14
Free download · ★ 4.6 · 51,546 ratings · score 87 · excellent - 15
Free + IAP · ★ 4.6 · 36,038 ratings · score 86 · excellent - 16
Free download · ★ 4.6 · 5,100 ratings · score 85 · excellent - 17
Free download · ★ 4.8 · 5,085 ratings · score 82 · excellent - 18
Free + IAP · ★ 4.5 · 126,002 ratings · score 82 · excellent - 19
Free download · ★ 3.1 · 9,936 ratings · score 81 · good - 20
Free download · ★ 4.7 · 14,169 ratings · score 81 · good - 21
Free + IAP · ★ 4.7 · 14,853 ratings · score 80 · good - 22
$9.99 · ★ 4.8 · 11,287 ratings · score 78 · good - 23
$5.99 + IAP · ★ 4.7 · 6,379 ratings · score 76 · good - 24
Free + IAP · ★ 4.7 · 18,043 ratings · score 76 · good - 25
Free + IAP · ★ 4.5 · 50,058 ratings · score 73 · good - 26
$5.99 · ★ 4.6 · 12,057 ratings · score 73 · good - 27
Free download · ★ 4.7 · 61,124 ratings · score 70 · situational - 28
Free download · ★ 4.7 · 15,857 ratings · score 69 · situational · provisional - 29
Free + IAP · ★ 4.7 · 11,107 ratings · score 69 · situational · provisional - 30
Free download · ★ 4.7 · 6,031 ratings · score 68 · situational · provisional - 31
Free download · ★ 4.7 · 4,086 ratings · score 68 · situational · provisional - 32
Free download · ★ 4.8 · 3,230 ratings · score 68 · situational · provisional - 33
Free + IAP · ★ 4.7 · 4,773 ratings · score 68 · situational · provisional - 34
Free download · ★ 4.8 · 2,370 ratings · score 67 · situational · provisional - 35
Free download · ★ 4.7 · 3,215 ratings · score 67 · situational · provisional - 36
Free download · ★ 4.8 · 2,530 ratings · score 66 · situational · provisional - 37
Free download · ★ 4.6 · 6,452 ratings · score 65 · situational - 38
Free + IAP · ★ 4.5 · 7,642 ratings · score 65 · situational · provisional - 39
Free download · ★ 4.7 · 2,923 ratings · score 65 · weak · provisional - 40
Free download · ★ 4.4 · 9,263 ratings · score 65 · weak · provisional
Beyond the top 40
15 more, not ranked yet
New in the last 30 days
- Calculator· (S)
- Calculator with History + (S)
- ClevCalc - Calculator (S)
- Fraction Calculator Plus #1 (A)
- Calculator + (A)
- Calc Pro - The Best Calculator (A)
- OneCalc: All-in-one Calculator (A)
- Calculator Plus #1 (A)
- Calculator (B)
- Big Button Calculator Pro Lite (B)
- Financial Calculator: Percent (B)
- Calculator HD Pro (B)
- Calculator ∞ (B)
- Calculator for iPhone and iPad (B)
- Graphing Calculator Plus AI (B)
- Color Calculator-smart&cute (C)
- Calcbot 2 (C)
- Discount Calculator Sales Tax (C)
- (Not Boring) Calculator (C)
- Basic Calculator: Classic Calc (C)
- Calculator: No Ads / Ad-Free (C)
- CALC Smart Calculator ± (C)
- Calculator with History Tape (C)
- Sales Tax Calculator > (C)
- CalConvert: Currency Converter (C)
- Taculator 84 Graphing Calc (C)
- Time Calculator - Work Hours (D)
- Feet & Inches Tape Calculator (D)
Questions people ask
- What is the best calculation app for iPhone?
- Calculator+, S tier, ranked #1 of 40, rated 4.7 by 1,734,445 people.
- Which calculation apps are free?
- 37 of 40 are free to download: Calculator+ (S), Calculator= (S), Calculator· (S), Calculator‰ (S) and more. 14 of them sell in-app purchases. 2 report no in-app purchases.
- Which calculation app has the best App Store rating?
- Calculator‰ at 4.9 from 409,444 ratings.
- How many calculation apps reach S or A tier?
- 18 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.
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