Comparison

AppSheet vs NTN PORTABLE VIBROSCOPE

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

Head to head
About

AppSheet

Build custom mobile apps, web apps, and chatbots without coding. Connect to your cloud data to create forms, capture information, and automate workflows for various business needs.

Highlights
  • Code-free app creation
  • Custom mobile and web apps
  • Chatbot development
  • Data capture (forms, photos, GPS)
  • Workflow automation
  • Connects to cloud storage and databases
Read full description

With AppSheet, you can create and distribute your own custom mobile apps without writing code or hiring developers. These apps can display content, take notes, create forms, capture photos, signatures and GPS, scan bar codes, and generate workflows for a wide variety of business scenarios. You can also build web apps and chatbots. AppSheet uses data from your cloud storage -- Google Sheets, Excel on Office365, Dropbox or Box, Smartsheet, SalesForce, and a variety of databases (SQLServer, mySQL, Postgres, and DynamoDB). You can create an app in minutes and enhance it to create rich custom apps for your team, business, or enterprise. Check review sites like Capterra to learn how AppSheet’s modern technology platform outpaces older low-code solutions like PowerApps, Salesforce1, and App Maker. AppSheet is an ideal solution for many business, including those in property management, agriculture, supply chain, operations, salesforce management, education and more. Here are just a few scenarios: WORKING WITH REMOTE TEAMS Apps built with AppSheet can help a remote team work with centralized data saved in spreadsheets (eg: in Google Drive, Box, or Droppox) or SQL databases. PROJECT MANAGEMENT Millions of people manage projects using Google Sheets, Excel, and Smartsheets. Project managers can build apps with AppSheet to display and share project data through a mobile device with other team members and stakeholders. Keep data centralized in a core spreadsheet and share only the parts that their audience needs to see. No more managing dozens of files that go back and forth via email! EDUCATION Manage study plans, school rosters, grading, and group work by creating a custom app with charts, maps, text summaries and image galleries. Share the app securely with students and colleagues. CUSTOMER SUPPORT AND ENGAGEMENT: Keep track of your customer pipeline on a Google Sheet but get the benefits of a streamlined custom mobile app using AppSheet. You can also interact with your data in new ways like building maps from your data, calling or messaging to telephone numbers, sending emails to contacts, and building catalogs using image galleries.

About

NTN PORTABLE VIBROSCOPE

Analyze equipment vibrations wirelessly using acceleration data. Perform OA and FFT analysis to identify bearing damage and assess equipment condition based on ISO 10816 criteria. Manage bearing replacement recommendations and track vibration changes over time.

Highlights
  • Wireless vibration analysis
  • OA and FFT analysis
  • Bearing damage identification
  • ISO 10816 vibration evaluation
  • Customizable bearing lists
  • Data storage and history management
  • Export data to computer
Features
Read full description

This App can analyze the vibration of equipment through acceleration data received wirelessly, and perform OA and FFT analysis, and displays the analysis result on the tablet screen. The Bearing damage can be identified using the bearing frequencies estimated from the FFT analysis. Bearing replacement recommendations can be managed by entering threshold values for the bearing vibration levels. In OA analysis, normal or abnormal results can be displayed by setting threshold values for acceleration, velocity, and displacement. In addition, equipment / component condition is judged based on ISO 10816 vibration evaluation criteria. You can select NTN bearings from the preset bearing list registered in the app, and create multiple measurement points with the preset rotational speed and thresholds. For non-NTN bearings, you can create an original bearing list by entering the bearing internal specifications or bearing vibration frequencies. Data storage and history management are available, and the change over time of vibration measurement results can be viewed in a line graph. Data that can be managed in history is OA, FFT, and time waveform. Saved measurement data can be imported from a tablet to a user’s computer and edited with a spreadsheet.

Screenshots

AppSheet3 screens
NTN PORTABLE VIBROSCOPE4 screens

Verdict

The call

The clearest difference is rating: NTN PORTABLE VIBROSCOPE at 5.0 against AppSheet's 3.4. NTN PORTABLE VIBROSCOPE also leads on monetization model (free vs freemium). AppSheet's advantage is ratings volume (200 vs 3). On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

NTN PORTABLE VIBROSCOPE holds the better App Store score, 5.0 against 3.4. That said, the two scores are not equally well evidenced: AppSheet has 200 ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

AppSheet ships an update every 2 months, NTN PORTABLE VIBROSCOPE every 4 months. The most recent releases landed on September 22, 2026 and September 9, 2026 respectively.

Scorecard3 real differences · 7 level
AppSheet versus NTN PORTABLE VIBROSCOPE: the parameters behind the verdict, then further details
ParameterAppSheetNTN PORTABLE VIBROSCOPE
PriceFreeFree
Rating3.4 (200 ratings)5.0 (3 ratings) — better
Positive reviews40.0% of reviews—
Number of ratings200 — better3
Update frequencyEvery 2 months — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreemiumFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.6
Further details — not scored
Size28 MB4 MB
Age rating4+4+
DeveloperSolvebot Inc.NTN Corporation

Customer experience

AppSheet

All ratings200 ratings
Positive56.0%
Neutral8.0%
Negative36.0%
Written reviews175 reviews
Positive40.0%
Neutral11.4%
Negative48.6%

NTN PORTABLE VIBROSCOPE

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

AppSheet

Reported bugs

15 issues
  • App crashes every few minutes during use
  • White/blank screen on launch
  • Barcode scanner cannot focus properly
  • Syncing failures and data loss
  • Login loops and authentication errors
Show 10 more
  • App freezes when selecting projects
  • Sound notifications not working
  • Dynamic Island interference on iPhone 14
  • Tables invisible in iOS app
  • Background music interruption when closing app
  • Beeping sound on app close
  • Update requirement error loops
  • Crashes with iOS 16+ compatibility issues
  • Data not saving despite sync confirmation
  • App stuck on first created app

Requested features

12 requests
  • Camera lens selection for barcode scanning
  • Default lens configuration option
  • Improved iPad app with free resizing
  • Background syncing capability
  • Offline mode improvements
Show 7 more
  • Japanese language localization
  • Landscape mode support
  • App deletion functionality
  • Multiple app selection on launch
  • Copy all text feature
  • Sound notification toggle/fix
  • Better camera zoom adjustments

NTN PORTABLE VIBROSCOPE

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

AppSheet

No in-app purchases

None

NTN PORTABLE VIBROSCOPE

No in-app purchases

Questions

Is AppSheet free?
AppSheet is free to download, with no in-app purchases.
Is NTN PORTABLE VIBROSCOPE free?
NTN PORTABLE VIBROSCOPE is free to download, with no in-app purchases.
Which has better reviews, AppSheet or NTN PORTABLE VIBROSCOPE?
NTN PORTABLE VIBROSCOPE is rated higher. AppSheet averages 3.4 out of 5 from 200 ratings, while NTN PORTABLE VIBROSCOPE averages 5.0 from 3 ratings.
Do AppSheet or NTN PORTABLE VIBROSCOPE have ads?
Neither AppSheet nor NTN PORTABLE VIBROSCOPE shows ads.
Which is updated more often, AppSheet or NTN PORTABLE VIBROSCOPE?
AppSheet ships an update every 2 months, and NTN PORTABLE VIBROSCOPE every 4 months. Most recently, AppSheet was updated on September 22, 2026 and NTN PORTABLE VIBROSCOPE on September 9, 2026.

Other comparisons