Comparison

Calculator + vs Baintech Lithium Battery App

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Calculator +

This app offers a free basic and scientific calculator with an intuitive interface. It supports fractions, percentages, and advanced editing. Optional upgrades provide specialized calculators for fractions with units, polynomial and linear equation solving, graphing, and geometric shapes.

Highlights
  • Free basic and scientific calculator
  • Intuitive interface with equation and result display
  • Fraction and percent support
  • Advanced editing capabilities
  • Polynomial and linear equation solver
  • Graphing calculator
  • Unit conversion and geometric calculators
Features
Read full description

Award winning calculator app for iPad and iPhone. Designed with simplicity, usability and beauty in mind! FEATURES: - Free basic calculator - Free scientific calculator - Elegant & Intuitive interface - Advanced editing by easily going back and forth - Displays both the equation & the result at the same time - Supports Fraction & Percent - Supports many scientific functions If you are looking for more advanced features you can upgrade to one or more of the following: - Fraction Calculator with feet, inches & cm support! - Solving for x with a polynomial Calculator for solving quadratic & cubic equations 2x³ - 4x² - 22x + 24 = 0 - Linear Equations Solver for solving system of linear equations 2x – y = 9 3x + 4y = –14 - Graphing Calculator to find the local min, max & intersection points y = 2x³ – 4x (x² + y²)³ = -27y²x² - Triangle Calculator - Cone Calculator - Arc Calculator - Circle Calculator - Base Converter ( HEX OCT BIN DEC ) - Multiple themes Enjoy the FREE Scientific calculator on your iPhone & iPad. If you like it, support us by upgrading or giving us a positive review. Thanks :) Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Baintech Lithium Battery App

Monitor and manage Bluetooth-enabled lithium batteries with real-time data on voltage, current, temperature, and capacity. This app offers seamless connectivity and a user-friendly interface for optimizing battery performance across various devices.

Highlights
  • Bluetooth connectivity for lithium batteries
  • Real-time monitoring of voltage, current, temperature, and capacity
  • User-friendly and intuitive interface
  • Supports specific Baintech lithium battery models
  • Optimizes battery-powered device performance
Features
Read full description

Introducing the Baintech Lithium Battery App, your ultimate companion for connecting and managing Bluetooth-enabled lithium batteries effortlessly. With support for a range of lithium battery models, including BTBLUELITH12/110, BTBLUELITH12/150, BTBLUELITH12/200, and BTBLUELITH12/300, the Baintech Lithium Battery App is your go-to solution for optimizing your battery-powered devices. Key Features: Seamless Connectivity: The Baintech Lithium Battery App allows you to connect your Bluetooth lithium batteries to your smartphone or tablet quickly and easily. Say goodbye to complicated pairing processes and enjoy a hassle-free connection experience. Real-Time Monitoring: Keep a close eye on the status of your batteries with real-time monitoring. Get insights into battery voltage, current, temperature, and remaining capacity, ensuring you always know when it's time to recharge. User-Friendly Interface: The app boasts an intuitive and user-friendly interface that caters to both tech enthusiasts and beginners. You don't need to be a battery expert to make the most of the Baintech Lithium Battery App. Compatibility: The Baintech Lithium Battery App supports a wide range of Bluetooth lithium batteries, including the popular BTBLUELITH12/110, BTBLUELITH12/150, BTBLUELITH12/200, and BTBLUELITH12/300 SKUs, making it suitable for a variety of devices and applications. Whether you're a professional using lithium batteries for industrial purposes or a tech-savvy individual who relies on them for personal gadgets, the Baintech Lithium Battery App ensures you have complete control and visibility over your Bluetooth lithium batteries. Download the Baintech Lithium Battery App today and experience the convenience of managing your batteries like never before. Say goodbye to guesswork and hello to smart, efficient battery management with Baintech.

Screenshots

Calculator +1 screens
Baintech Lithium Battery App3 screens

Verdict

The call

The clearest difference is review sentiment: Calculator + at 85% against Baintech Lithium Battery App's 0%. Calculator + also leads on update cadence (every 4 days vs monthly). Baintech Lithium Battery App's advantage is in-app purchases (none vs 12) and ads (none vs shown). On price and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Calculator + sells 12 in-app purchases, starting at $4.99 per month. Baintech Lithium Battery App asks for nothing beyond the download.

UpkeepUpdate frequency

Calculator + ships an update every 4 days, Baintech Lithium Battery App monthly. The most recent releases landed on September 26, 2026 and June 3, 2026 respectively.

Scorecard6 real differences · 4 level
Calculator + versus Baintech Lithium Battery App: the parameters behind the verdict, then further details
ParameterCalculator +Baintech Lithium Battery App
PriceFreeFree
Rating4.6 (10K ratings) — better—
Positive reviews84.9% of reviews — better0.0% of reviews
Number of ratings10K — better—
Update frequencyEvery 4 days — betterMonthly
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.412.0 — better
Further details — not scored
Size48 MB32 MB
Age rating4+4+
DeveloperxNeat.comSUNFRT PTY LTD

Customer experience

Calculator +

All ratings10,020 ratings
Positive91.7%
Neutral2.9%
Negative5.4%
Written reviews940 reviews
Positive84.9%
Neutral4.0%
Negative11.1%

Baintech Lithium Battery App

Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

Calculator +

Reported bugs

5 issues
  • Fraction calculator has TWO subtraction buttons and NO division button
  • Decimals seem to be changed to fraction with no apparent way of changing it back
  • Functionality is dropped by forcing you to the main menu every time you open it
  • Currency converter broken
  • Login screen freezes

Requested features

5 requests
  • Add mod function
  • Add commas
  • Add 1/x function
  • Support for Retina Display
  • Add number 4 with two lines

Baintech Lithium Battery App

Not enough reviews yet to summarise bugs or requests.

In-app purchases

12 purchases

Calculator +

Subscriptions2
  • Scientific Calculator3 Days trial$4.991 Month
  • Calculator7 Days trial$39.991 Year
One-time10
  • Linear Calculator$2.99
  • Factoring Calculator$2.99
  • Handwriting Calculator$2.99
Show 7 more
  • Currency Converter$2.99
  • Themes Pack$2.99
  • Graphing Calculator$3.99
  • Fraction Calculator$3.99
  • Scientific Calculator$4.99
  • Calculator Plus$4.99
  • Calculator$16.99
None

Baintech Lithium Battery App

No in-app purchases

Questions

Is Calculator + free?
Calculator + is free to download, with in-app purchases available.
Is Baintech Lithium Battery App free?
Baintech Lithium Battery App is free to download, with no in-app purchases.
Do Calculator + or Baintech Lithium Battery App have ads?
Calculator + shows ads; Baintech Lithium Battery App does not.
Which is updated more often, Calculator + or Baintech Lithium Battery App?
Calculator + ships an update every 4 days, and Baintech Lithium Battery App monthly. Most recently, Calculator + was updated on September 26, 2026 and Baintech Lithium Battery App on June 3, 2026.

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