Comparison

Measures Unit Converter vs DS cam

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

Head to head
About

Measures Unit Converter

This app offers a comprehensive unit conversion tool with over 971 units across 40 categories, including 173 currencies with real-time exchange rates. It features an intuitive interface, a scientific calculator, and offline functionality, making it ideal for precise conversions.

Highlights
  • 971 units across 40 categories
  • 173 currencies with real-time rates
  • Offline conversion functionality
  • Scientific calculator
  • Intuitive redesigned interface
  • Customizable themes
Features
Read full description

Measures is the ultimate unit converter for iOS featuring 971 units across 40 categories and 173 currencies with real-time rates. NEW VERSION - COMPLETELY REDESIGNED: • 971 units across 40 categories • 173 currencies with automatic real-time rates • Completely redesigned, intuitive interface • Scientific calculator with advanced functions • Enhanced favorites with drag & drop reordering • Intelligent search with instant results • Fully customizable with 5 beautiful themes and many options • Works completely offline - no internet required for conversions PROFESSIONAL CATEGORIES: • Traditional: Length, mass, volume, area, temperature • Scientific: Energy, force, pressure, density, viscosity • Specialized: Clothing sizes, blood sugar, typography • Currencies: 173 countries with real-time rates • Plus 32 additional categories! Perfect for scientists, engineers, students, and professionals who need precise conversions.

About

DS cam

Monitor and receive alerts from your Synology surveillance cameras. Control PTZ, patrols, and lens functions in real-time. Easily filter recordings and manage essential tasks like disabling cameras or deleting snapshots.

Highlights
  • Real-time camera monitoring
  • Alert notifications
  • PTZ, patrol, and lens control
  • Advanced recording filters
  • Essential management tasks
  • Snapshot management
Features
Read full description

You must own a Synology NAS or NVR to run this app, and be running the latest Surveillance Station to get the complete set of features. DS cam makes it possible to monitor and receive alert notifications from all your surveillance cameras set up on a Synology DiskStation. Smart features such as PTZ, patrols or lens control allow for perfect control of your cameras in real-time, while advanced filters make it easy to pinpoint any specific event from large lists of recordings. You can even perform all essential management tasks, from disabling a camera to unlocking and deleting a snapshot. Find all detailed features about the app on our website: www.synology.com > Solutions > Surveillance > Surveillance Mobile > Specifications https://www.synology.com/dsm/7.2/software_spec/surveillance_station

Screenshots

Measures Unit Converter4 screens
DS cam4 screens

Verdict

The call

The clearest difference is review sentiment: Measures Unit Converter at 91% against DS cam's 32%. Measures Unit Converter also leads on rating (4.4 vs 3.0) and update cadence (every 8 days vs every 4 months). DS cam's advantage is price (Free vs $1.99) and in-app purchases (none vs 4). On 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

DS cam is free to download; Measures Unit Converter costs $1.99 up front. Measures Unit Converter sells 4 one-off in-app purchases. DS cam asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Measures Unit Converter holds the better App Store score, 4.4 against 3.0. That said, the two scores are not equally well evidenced: DS cam has 176 ratings behind it against 30, so its average is the more settled of the two. Written reviews point the same way: 91% of Measures Unit Converter's written reviews are positive against 32% of DS cam's.

UpkeepUpdate frequency

Measures Unit Converter ships an update every 8 days, DS cam every 4 months. Both last shipped on October 20, 2026.

Scorecard8 real differences · 2 level
Measures Unit Converter versus DS cam: the parameters behind the verdict, then further details
ParameterMeasures Unit ConverterDS cam
Price$1.99Free — better
Rating4.4 (30 ratings) — better3.0 (176 ratings)
Positive reviews91.4% of reviews — better31.8% of reviews
Number of ratings30176 — better
Update frequencyEvery 8 days — betterEvery 4 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.0 — better
Further details — not scored
Size18 MB85 MB
Age rating4+4+
DeveloperNeuwert Media GmbHSynology Inc.

Customer experience

Measures Unit Converter

All ratings30 ratings
Positive83.3%
Neutral3.3%
Negative13.3%
Written reviews833 reviews
Positive91.4%
Neutral2.3%
Negative6.4%

DS cam

All ratings172 ratings
Positive41.3%
Neutral14.0%
Negative44.8%
Written reviews286 reviews
Positive31.8%
Neutral17.8%
Negative50.3%

User reviews

Measures Unit Converter

From 30 App Store ratings

What we love

  • 👍 Simple and intuitive interface
  • 🚀 Comprehensive range of conversions
  • 💡 Customizable unit selection
  • 🔍 Accurate and up-to-date currency rates
  • 🔢 Handy built-in calculator

Room to improve

  • 🐛 Occasional crashes or bugs
  • 🔀 Cumbersome navigation for some conversions
  • 🔍 Lack of customization options for some units
  • 💤 Outdated or inaccurate conversion factors in some cases

DS cam

From 176 App Store ratings

What we love

  • 🚀 Works great
  • 👍 Good and useful app
  • 🚀 Fast and stable
  • 👍 Completely control camera recordings
  • 👍 Toggle through events easily

Room to improve

  • 🐛 Regular app crashing
  • 🐛 Crashes frequently
  • 🐛 Cannot scroll back in timeline without issues
  • 🐛 Event viewer rarely works
  • 🐛 Slow and clunky

Bugs and requests

Measures Unit Converter

Reported bugs

2 issues
  • Crashes on launch with iOS 7.0.2
  • Inconsistent behavior when changing units in calculator

Requested features

4 requests
  • Add ability to swap conversion directions
  • Improve currency conversion to show tourist rates
  • Expand RF/frequency conversion options
  • Add support for more advanced unit types (e.g. wind chill, biblical currencies)

DS cam

Reported bugs

16 issues
  • Regular app crashing
  • Cannot scroll back in timeline without issues
  • Event viewer rarely works
  • Keeps buffering
  • Crashes constantly
Show 11 more
  • Battery drain
  • Push notifications not reliable
  • Cannot click on push notifications
  • Cannot download h265 videos
  • Notifications missing thumbnails
  • Slow login process
  • Loses remembered connections
  • Slow to connect
  • Notifications stopped working
  • Crashes iPhone 14 Pro
  • Incompatible with older Surveillance Station versions

Requested features

11 requests
  • Selective motion notifications
  • Custom notification sounds
  • Ability to categorize alerts
  • Live scrubbing on timeline
  • Bookmarks and advanced filtering
Show 6 more
  • Ability to download h265 videos
  • Faster login process
  • Ability to retain remembered connections
  • Apple TV app
  • Dark mode for all screens
  • Ability to quickly switch between cameras

In-app purchases

4 purchases

Measures Unit Converter

One-time4
  • Coffee$1.99
  • Breakfast$4.99
  • Lunch$9.99
Show 1 more
  • Dinner$19.99
None

DS cam

No in-app purchases

Questions

Is Measures Unit Converter free?
Measures Unit Converter costs $1.99, and also offers in-app purchases.
Is DS cam free?
DS cam is free to download, with no in-app purchases.
Which has better reviews, Measures Unit Converter or DS cam?
Measures Unit Converter is rated higher. Measures Unit Converter averages 4.4 out of 5 from 30 ratings, while DS cam averages 3.0 from 176 ratings.
Do Measures Unit Converter or DS cam have ads?
Neither Measures Unit Converter nor DS cam shows ads.
Which is updated more often, Measures Unit Converter or DS cam?
Measures Unit Converter ships an update every 8 days, and DS cam every 4 months. Most recently, Measures Unit Converter was updated on October 20, 2026 and DS cam on October 20, 2026.

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