Comparison

smartctr vs Witness Angel

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

Head to head
About

smartctr

This app provides intelligent remote control for pickup truck roller shutters and carriage LED lights. It enables automatic switching of these features for convenient operation.

Highlights
  • Remote control for roller shutters
  • Automatic roller shutter switch
  • Control carriage LED lights
  • Automatic LED light switch
Features
Read full description

Smartctr is an intelligent remote control app that controls the roller shutter equipment of pickup truck. It can control the automatic switch of roller shutter and the automatic switch of LED light in the carriage

About

Witness Angel

Features
Read full description

This application allows the user to create an "authenticator" - a digital identity and its secure keychain - to interact with the WitnessAngel ecosystem. This identity can be published, so that Witness Angel devices retrieve it to secure their recordings. The application also allows the user to accept/reject authorization requests, emitted when someone needs to decrypt recordings for judicial processes.

Screenshots

smartctr4 screens
Witness Angel4 screens

Verdict

The call

The clearest difference is update cadence: smartctr at every 2 months against Witness Angel's every 11 months. Witness Angel's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

smartctr ships an update every 2 months, Witness Angel every 11 months. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

Scorecard2 real differences · 8 level
smartctr versus Witness Angel: the parameters behind the verdict, then further details
ParametersmartctrWitness Angel
PriceFreeFree
Rating3.0 (12 ratings) — better—
Positive reviews25.0% of reviews—
Number of ratings12 — better—
Update frequencyEvery 2 months — betterEvery 11 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size7 MB133 MB
Age rating4+4+
Developer爽 余Pascal Chambon

In-app purchases

None

smartctr

No in-app purchases

None

Witness Angel

No in-app purchases

Questions

Is smartctr free?
smartctr is free to download, with no in-app purchases.
Is Witness Angel free?
Witness Angel is free to download, with no in-app purchases.
Do smartctr or Witness Angel have ads?
Neither smartctr nor Witness Angel shows ads.
Which is updated more often, smartctr or Witness Angel?
smartctr ships an update every 2 months, and Witness Angel every 11 months. Most recently, smartctr was updated on November 3, 2026 and Witness Angel on November 7, 2026.

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