Best Belt Tension Apps

68+ iOS apps curated and reviewed

4.1 avg rating
14 free apps
Updated August 2026

Every iPhone needs a few good belt tension apps. We benchmark 68+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top Belt Tension Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Belty - Belt TunerBelty - Belt TunerFree5.0★ (3)NoNoSep 2026
2Smart Belt DriveSmart Belt DriveFree3.4★ (10)NoNoMay 2026
3Carbon Drive Belt Tension ToolCarbon Drive Belt Tension ToolFree2.7★ (21)NoNoJul 2026
4Tension Meter CompanionTension Meter CompanionFreeNoNoMay 2026
5Decibel X:dB Sound Level MeterDecibel X:dB Sound Level MeterFree4.6★ (161K)NoYesSep 2026
6Belt Tension CalculatorBelt Tension CalculatorFreeNoNoMay 2026
7Make Power SmartMake Power SmartFree5.0★ (1)NoNoJul 2026
8BeltTuneBeltTune$4.993.5★ (2)NoNoAug 2026

Top Picks for Belt Tension

Belty - Belt Tuner#1

Belty - Belt Tuner by Coby Lai

Sonic belt tensioner
Editor's Choice
🔧 Utilities
5.0(3 ratings)
Free
Belty - Belt Tuner screenshot 1
Belty - Belt Tuner screenshot 2
Belty - Belt Tuner screenshot 3
Belty - Belt Tuner screenshot 4
Belty - Belt Tuner screenshot 5
Belty - Belt Tuner screenshot 6

This app analyzes the frequency of a plucked timing belt to help you tune it accurately. It provides real-time feedback, historical data, and includes calculators for tension and belt length.

Smart Belt Drive#2

Smart Belt Drive by HUTCHINSON

Strong Contender
📊 Productivity
3.4(10 ratings)
Free
Smart Belt Drive screenshot 1
Smart Belt Drive screenshot 2
Smart Belt Drive screenshot 3
Smart Belt Drive screenshot 4
Smart Belt Drive screenshot 5
Smart Belt Drive screenshot 6

This application provides a comprehensive diagnostic tool for belt drive systems. It measures key parameters like pulley speeds, belt frequency, tension, and system geometry to ensure optimal performance, energy efficiency, and extended service life.

Carbon Drive Belt Tension Tool#3

Carbon Drive Belt Tension Tool by Gates Corporation

Gates Carbon Drive
Worth Considering
⚽ Sports
2.7(21 ratings)
Free
Carbon Drive Belt Tension Tool screenshot 1
Carbon Drive Belt Tension Tool screenshot 2
Carbon Drive Belt Tension Tool screenshot 3
Carbon Drive Belt Tension Tool screenshot 4

This app uses your phone's microphone to measure the sonic vibration frequency of a belt drive. It helps you determine if your bicycle belt tension needs adjustment by comparing the frequency to a provided chart. It also offers a calculator for bicycle belt drive parameters like speed ratio and center distance.

More Belt Tension apps to explore

4
Tension Meter Companion
Tension Meter Companion
Tension Meter Companion
BRECOflex Belt Tension Meter
Free
🔧 Utilities
(0)
5
Decibel X:dB Sound Level Meter
Decibel X:dB Sound Level Meter
Decibel X:dB Sound Level Meter
Frequency Spectrum Analyzer
Free

This app transforms your device into a professional sound level meter, precisely measuring ambient noise pressure. It offers advanced features like frequency analysis, historical data management, and dosimeter functions, making it useful for various applications and entertainment.

Precise sound pressure level measurementFrequency spectrum analysis (FFT, BAR graphs)Historical data recording and export
🔧 Utilities
(161K)
free with in-app purchases
6
Belt Tension Calculator
Belt Tension Calculator
Belt Tension Calculator
Belt maintenance & monitoring
Free
🔧 Utilities
(0)
7
Make Power Smart
Make Power Smart
Make Power Smart
by ContiTech AG
Free

This app assists teams in managing MRO and energy costs. It provides tools for installing belts, evaluating drives, and upgrading to more energy-efficient solutions. Users can also track, schedule, and receive educational resources.

MRO cost optimizationEnergy cost reductionBelt installation guidance
📊 Productivity
(1)
free
8
BeltTune
BeltTune
BeltTune
Timing belt tension tool
$4.99

This utility app uses your phone's microphone to measure belt tension by analyzing audio frequencies. It provides instant measurements, supports multiple belt segments, and averages results for accuracy. Ideal for professionals and enthusiasts needing precise belt installations.

Instant frequency measurementReal-time audio analysisMultiple belt segment support
🔧 Utilities
(2)
paid
9
Belt Length Calculator
Belt Length Calculator
Belt Length Calculator
by Imran Pinjara
$1.99

Calculate the necessary length for drive system belts with this utility. Supports both open and cross belt arrangements, requiring only pulley diameters and center length for accurate results.

Calculate belt lengthOpen belt arrangementCross belt arrangement
🔧 Utilities
(0)
paid
10
iOptibelt
iOptibelt
iOptibelt
by Arntz Optibelt Group
Free

Scan drive belt barcodes to instantly access product information and data. Find items in the online catalog, order directly, and track your orders. Includes tools for calculating belt tension and vibration frequency.

Barcode scanning for belt informationOnline catalog searchDirect ordering and order tracking
💼 Business
(1)
free
11
CloudLabs Pulley & Belt Sys.
CloudLabs Pulley & Belt Sys.
CloudLabs Pulley & Belt Sys.
by Jiovany Orozco
Free
📚 Education
(0)
12
Gates Design Power Mobile
Gates Design Power Mobile
Gates Design Power Mobile
by Gates Corporation
Free

This app provides engineers and maintenance specialists with access to industrial drive design tools and product data on their mobile devices. It offers modules for designing belt drives, managing facility maintenance, and measuring belt tension, speed, noise, and distance.

Industrial belt drive designFacility maintenance trackingBelt tension measurement
💼 Business
(6)
free
13
Sling Tension
Sling Tension
Sling Tension
Tool to Calculate SlingTension
$1.99
🔧 Utilities
(0)
14
SKF Belt Calc
SKF Belt Calc
SKF Belt Calc
by SKF Sverige AB
Free

This app helps field engineers and technical sales professionals evaluate existing belt drive designs. It offers over 100 alternative solutions and allows for easy emailing of drawings and instructions in PDF format, even in remote locations.

Evaluate existing belt drive designsPropose over 100 alternative solutionsEmail PDF drawings and instructions
💼 Business
(2)
free
15
Pulley and Belt Calculator
Pulley and Belt Calculator
Pulley and Belt Calculator
Gear Ratio, RPM & Length
$1.99
🔧 Utilities
(0)
16
Pulley Belt Calculator
Pulley Belt Calculator
Pulley Belt Calculator
Calculate Pulley Belt Length.
$4.99
🔧 Utilities
(0)
17
Conveyxonic Wizard ®
Conveyxonic Wizard ®
Conveyxonic Wizard ®
by HUTCHINSON
Free
📊 Productivity
(0)
18
Poly V Design
Poly V Design
Poly V Design
by HUTCHINSON
Free
📊 Productivity
(0)
19
Belt Length Calculator 2PS
Belt Length Calculator 2PS
Belt Length Calculator 2PS
BeltCalc Pro
$3.99
📊 Productivity
(0)
20
Arora Belting Store
Arora Belting Store
Arora Belting Store
by vivek arora
Free
💼 Business
(0)

FAQ about Belt Tension

What are the best belt tension apps for iPhone?
Belty - Belt Tuner tops our belt tension apps ranking as of August 2026, with a 5.0-star average from 3 App Store ratings, and it's free to download.
Yes — 14 of the top belt tension apps we rank are free to download, including Belty - Belt Tuner and Smart Belt Drive.
Belty - Belt Tuner has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 68+ belt tension apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
Belty is used to measure the frequency of a plucked timing belt, providing real-time feedback to help you tune its tension accurately. It also includes calculators for tension and belt length.
No, Belty runs entirely on your device. It does not require an account, collect any data, or record audio. The microphone is solely used to listen to the belt.

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