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Best Stpcalculatetools Apps

12+ iOS apps curated and reviewed

4.1 avg rating
12 free apps
Updated June 2026

Looking for free stpcalculatetools apps? 12 of our 12+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Stpcalculatetools Apps (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Basic Calculator: Classic CalcBasic Calculator: Classic CalcFree4.8★ (3.1K)YesYesJul 2026
2Peptide Calculator: PepCalcPeptide Calculator: PepCalcFree5.0★ (9)NoNoJul 2026
3Peptide Calculator +Peptide Calculator +Free4.7★ (38)NoYesJun 2026
4cCalc Tools by CommScopecCalc Tools by CommScopeFree5.0★ (2)NoNoMay 2026
5Own calculatorOwn calculatorFree2.8★ (4)NoYesMay 2026
6ELECTROtoolsELECTROtoolsFree4.0★ (2)NoNoMay 2026
7HP41CVHP41CVFree2.7★ (21)NoNoMay 2026
8คำนวนค่างวดรถคำนวนค่างวดรถFree—YesNoMay 2026

Top Picks for Stpcalculatetools

Basic Calculator: Classic Calc#1

Basic Calculator: Classic Calc by MobArts Ltd

big buttons and wallpapers
Editor's Choice
🔧 Utilities
4.8😊(3.1K ratings)
FreeAdsIn-App Purchases
Basic Calculator: Classic Calc screenshot 1
Basic Calculator: Classic Calc screenshot 2
Basic Calculator: Classic Calc screenshot 3
Basic Calculator: Classic Calc screenshot 4
Basic Calculator: Classic Calc screenshot 5
Basic Calculator: Classic Calc screenshot 6

A free, classic calculator app with large, easy-to-press buttons and customizable skins. It supports basic arithmetic, memory functions, and can handle very large numbers without using scientific notation. Multitasking is also supported on compatible devices.

What We Love

  • 👍 Simple and easy to use
  • 💡 Useful copy and paste functions
  • 👍 Clear and large display
  • 👍 Variety of skins/themes

Room to Improve

  • 🐛 Compatibility issues with iOS updates
  • 🐛 Inaccurate calculations with larger numbers
  • 🔋 Slow load times
Peptide Calculator: PepCalc#2

Peptide Calculator: PepCalc by David Dzeveckij

Dosage & Reconstitution Tool
Strong Contender
🏥 Medical
5.0(9 ratings)
Free
Peptide Calculator: PepCalc screenshot 1
Peptide Calculator: PepCalc screenshot 2
Peptide Calculator: PepCalc screenshot 3

This tool simplifies peptide dosage and reconstitution calculations. It accurately determines injection volumes and the correct amount of water for mixing, converting results to insulin syringe units. Designed for researchers and wellness enthusiasts, it ensures precise and confident peptide administration.

Peptide Calculator +#3

Peptide Calculator + by Joseph Stein

Reconstitution Dosage & Mix
Worth Considering
💪 Health & Fitness
4.7(38 ratings)
FreeIn-App Purchases
Peptide Calculator + screenshot 1
Peptide Calculator + screenshot 2
Peptide Calculator + screenshot 3
Peptide Calculator + screenshot 4

This app simplifies peptide dosing, reconstitution, and mixing. It calculates exact syringe draw amounts, helps blend multiple peptides, and determines precise dilution volumes for your protocol.

More Stpcalculatetools apps to explore

4
cCalc Tools by CommScope
cCalc Tools by CommScope
cCalc Tools by CommScope
by CommScope, Inc.
Free

This app offers essential calculation tools for enterprise and wireless networks. It allows users to log measurements, share projects, save configurations, and export data efficiently.

Enterprise and wireless network calculatorsLog measurementsExchange projects between users
💼 Business
(2)
free
5
Own calculator
Own calculator
Own calculator
Teach me to count!
Free

This app allows users to create custom mathematical rules, transforming standard calculations into personalized equations. Surprise others with unique results by defining your own logic for any expression. Supports multiple languages for a global user base.

Create custom mathematical rulesPersonalize any expressionSurprise others with unique results
💼 Business
(4)
free with in-app purchases
6
ELECTROtools
ELECTROtools
ELECTROtools
by FEGIME Deutschland Marktgemeinschaft im Elektrogrosshandel GmbH & Co. KG
Free

This app provides electricians and engineers with essential tabulations, formulas, and graphics for various electrical and electronic tasks. It includes tools for circuit calculations, component identification, and data lookup, making it a handy reference for fieldwork and office use.

Electrical tabulations and graphicsFormulae calculatorComponent identification
📊 Productivity
(2)
free
7
HP41CV
HP41CV
HP41CV
by Jurgen Anton Strohmer
Free

Experience the functionality of a classic 90s pocket calculator on your iPhone. This app offers UPN calculation with a basic course for new users. Many core functions are available for free, with advanced features offered as optional upgrades.

HP-41 CV calculator emulationUPN (Reverse Polish Notation) calculationBasic UPN course with examples
🔧 Utilities
(21)
free
8
คำนวนค่างวดรถ
คำนวนค่างวดรถ
คำนวนค่างวดรถ
คำนวนค่างวดและดอกเบี้ยรถยนต์
Free
🔧 Utilities
(0)
9
Concrete Calculator & Cost Est
Concrete Calculator & Cost Est
Concrete Calculator & Cost Est
Bags, Slabs, Stairs, Posts
Free
🔧 Utilities
(0)
10
Calci by Spakcomm
Calci by Spakcomm
Calci by Spakcomm
Simple • Easy • Fun
Free
🔧 Utilities
(0)
11
PHCOM Pocket Calculator
PHCOM Pocket Calculator
PHCOM Pocket Calculator
Calculating made easy
Free
🔧 Utilities
(0)
12
STCalc
STCalc
STCalc
All-in-one calculators
Free
🔧 Utilities
(0)

FAQ about Stpcalculatetools

What are the best stpcalculatetools apps for iPhone?
Basic Calculator: Classic Calc tops our stpcalculatetools apps ranking as of June 2026, with a 4.8-star average from 3.1K App Store ratings, and it's free to download.
Yes — 12 of the top stpcalculatetools apps we rank are free to download, including Basic Calculator: Classic Calc and Peptide Calculator: PepCalc.
Basic Calculator: Classic Calc shows ads and offers in-app purchases, according to its App Store listing as of June 2026.
We track 12+ stpcalculatetools apps on the iOS App Store as of June 2026, ranked by rating, recency, and analysis of real user reviews.
This app is a free, classic calculator designed for everyday use. It supports basic arithmetic operations like addition, subtraction, multiplication, and division, along with square roots. It also includes standard memory functions and can handle very large numbers up to 60 digits without displaying them in scientific notation.
Key features include large, easy-to-press buttons, multiple beautiful skins for customization, support for multitasking on iPad devices (Split View and Slide Over), and the ability to copy and paste numbers. It also offers an option for thousands separators and a key click sound effect.