Comparison

AutoSilent vs Millimeter Pro

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

Head to head
About

AutoSilent

This app automatically silences your iPhone or iPad during scheduled meetings, at specific locations, or at set times. It seamlessly integrates with your calendar and location services to manage your device's ringer, ensuring you're never disturbed or embarrassed by notifications in inappropriate situations. It can also automatically unmute your device when the event concludes.

Highlights
  • Automatic silencing for calendar events
  • Location-based silencing
  • Scheduled silencing
  • Automatic unmuting
  • Calendar synchronization
  • Customizable silent event criteria
Features
Read full description

AutoSilent automatically mutes your iDevice (iPhone, iPad) during meetings, scheduled times or at selected locations. Comes with 7 days free trial period. After this you may purchase an auto-renewing subscription through an In-App Purchase. If you do not maintain a subscription you will not be able to have premium features, like: Schedule events, Location Events snd Calendar events. • Auto-renewable subscription • 1 month ($1.99) • Your subscription will be charged to your iTunes account at confirmation of purchase and will automatically renew (at the duration selected) unless auto-renew is turned off at least 24 hours before the end of the current period. • Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your iTunes Account Settings after purchase. Note: ------ In case of a problem to identify an already purchased subscription, please try first to quit and re-open the app. In case it does not work please click on "Restore Purchases". EULA ------ https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy -------------- http://www.gutherz.org/autosilent/privacy_policy_autosilent.html In the first tab the next silent event that it finds in your iPhone calendars. This tab is not intended to be used to add or modify events. To add new event just open your Calendar application and add/modify your event. AutoSilent will automatically synchronize with your calendars. On first run, make sure to allow AutoSilent to get your current location and allow it to get notifications. AutoSilent synchronizes with your calendars and automatically silents your iDevice during meetings. AutoSilent automatically re-sets your iDevice back to Regular/Ring mode at the end of the meeting. AutoSilent is a location based application. It can detect your current location and mute your iDevice automatically when you are at School or at the University. AutoSilent will set your iDevice back to Regular/Ring mode when you leave those places. Don’t miss an important call because you forget to un mute your phone. Don’t be embarrassed by alerts that go on while you are in a meeting. Let AutoSilent do the job for you. Calendar event is considered silent when: 1. Availability is busy 2. Not a whole day event 3. Event notes do not contain !ring 4. Event notes contain !silent Calendar Tab – This tab shows you the next meeting that AutoSilent will automatically mute your iDevice Locations Tab – Lists locations where AutoSilent automatically mutes your iDevice. You can click on any of the location rows and make modifications. Settings Tab - Calendar Silent: enables or disables mute for calendar events. Location silent: enables or disables mute for Location events. Ring/Silent Notification: Enables or disables notification alerts whenever iDevice changes its mode from mute to un mute and vice versa. Next Silent Event: Specifies the number of days to look forward for the next Silent event in your calendar(s). (Defaults to 30 days) Location Radius: Specifies the radius where AutoSilent checks for location events. (Defaults to 500 meters) Calendar: Selects the calendar to check for calendar events. (Defaults to ALL calendars) Silent Out Of Office: Silence the phone during "Out Of Office" events. Keep Mute Status: When selected AutoSilent will not change your iDevice to ring mode if it was silent before event was started. Only !silent events: AutoSilent will only look for !silent events in your selected calendars. Mute on WiFi network: put _all for all WiFi networks or the WiFi name that will be used by AutoSilent to mute your device once you are connected to that network. AutoSilent will unmute your device once you are disconnected from that network. Battery Disclaimer: Continued use of GPS running in the background can dramatically decrease battery life.

About

Millimeter Pro

This app transforms your device into a versatile measuring tool. It allows for precise measurements of length, area, diameter, and angles using the touchscreen. Easily split objects into equal parts and switch between millimeters and inches for your convenience.

Highlights
  • Touchscreen ruler and tape measure
  • Measure length, area, diameter, and angles
  • Split objects into equal parts
  • Supports millimeters and inches
  • Estimate radius
  • Thread pitch gauge
Features
Currently charting
Read full description

App blog: https://goo.gl/da6LdZ Millimeter Pro is an easy-to-use and helpful measurement tool for iPhone or iPad. It uses a touch screen as a ruler or tape measure to make quick measurements, split objects into equal parts, measure object ratio (W/H), measure area, estimate diameter and angles, and split circular objects into equal parts. Place an object on the screen and simply touch and move rulers to measure it. You can measure in different units: MILLIMETERS or INCHES. Features: - mm and inch units - 2D measurements: vertical and horizontal rulers - area calculation - ratio calculation (W/H) - split linear and circular objects into equal parts - shows the length and angle of each part - disable/enable touch screen (freeze feature) - diameter or radius estimation - angle measure with Protractor / Goniometer mode - Thread pitch gauge for TPI and pitch size measurements Use this app in different areas to measure small objects that fit within your phone or tablet screen: jewelry, rings, stones, gem, beads, screws, bolts, buttons, nuts, knitting needles, knitting patterns, washers, insects, mosaic tile, hooks, frame wrap angle, etc. Enjoy the app and Thank you for your interest and support! VisTech.Projects Team

Screenshots

AutoSilent4 screens
Millimeter Pro4 screens

Verdict

The call

The clearest difference is price: AutoSilent at Free against Millimeter Pro's $3.99. AutoSilent also leads on update cadence (every 3 weeks vs every 4 months) and iOS requirement (12.0 vs 15.0). Millimeter Pro's advantage is rating (4.4 vs 3.6) and in-app purchases (none vs 1). On ratings volume, ads 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

AutoSilent is free to download; Millimeter Pro costs $3.99 up front. AutoSilent sells 1 in-app purchase, starting at $1.99 per month. Millimeter Pro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Millimeter Pro holds the better App Store score, 4.4 against 3.6. Both are backed by a comparable volume of ratings — 184 and 109 respectively. Written reviews point the same way: 42% of AutoSilent's written reviews are positive against 58% of Millimeter Pro's.

UpkeepUpdate frequency

AutoSilent ships an update every 3 weeks, Millimeter Pro every 4 months. The most recent releases landed on October 23, 2026 and November 1, 2026 respectively.

Scorecard8 real differences · 3 level
AutoSilent versus Millimeter Pro: the parameters behind the verdict, then further details
ParameterAutoSilentMillimeter Pro
PriceFree — better$3.99
Rating3.6 (184 ratings)4.4 (109 ratings) — better
Positive reviews42.1% of reviews57.9% of reviews — better
Number of ratings184 — better109
Update frequencyEvery 3 weeks — betterEvery 4 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank—#198 — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size25 MB24 MB
Age rating4+4+
DeveloperNiv GutherzVisTech.Projects LLC

Customer experience

AutoSilent

All ratings183 ratings
Positive62.8%
Neutral6.6%
Negative30.6%
Written reviews178 reviews
Positive42.1%
Neutral12.4%
Negative45.5%

Millimeter Pro

All ratings108 ratings
Positive85.2%
Neutral3.7%
Negative11.1%
Written reviews38 reviews
Positive57.9%
Neutral5.3%
Negative36.8%

Bugs and requests

AutoSilent

Reported bugs

3 issues
  • Silencing not working as expected
  • Constant notifications/alerts from the app
  • Losing custom settings after updates

Requested features

4 requests
  • Ability to selectively silence contacts/numbers
  • Master on/off switch for easier deactivation
  • More flexible scheduling options (e.g. overnight)
  • Improved integration with iOS Focus mode

Millimeter Pro

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

AutoSilent

Subscriptions1
  • AutoSilent Premium Features$1.991 Month
None

Millimeter Pro

No in-app purchases

Questions

Is AutoSilent free?
AutoSilent is free to download, with in-app purchases available.
Is Millimeter Pro free?
Millimeter Pro costs $3.99, with no in-app purchases.
Which has better reviews, AutoSilent or Millimeter Pro?
Millimeter Pro is rated higher. AutoSilent averages 3.6 out of 5 from 184 ratings, while Millimeter Pro averages 4.4 from 109 ratings.
Do AutoSilent or Millimeter Pro have ads?
Neither AutoSilent nor Millimeter Pro shows ads.
Which is updated more often, AutoSilent or Millimeter Pro?
AutoSilent ships an update every 3 weeks, and Millimeter Pro every 4 months. Most recently, AutoSilent was updated on October 23, 2026 and Millimeter Pro on November 1, 2026.

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