Comparison

Quintens ISA vs Powertora

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

Head to head
About

Quintens ISA

Features
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The ISA mobile app is available to subscribers to the ISA information service. The ISA app makes it possible to: • Scan items from the own assortment and build a scan list • View core data of scanned articles that are stored in the ISA databases • View Safety Data Sheets and Declarations of Performance for the scanned product • Sending the scanned GTINs to your e-mail address or saving them in ISA for further use there. • Sending product card and safety instruction card to your e-mail address. The ISA information service is designed to provide companies with information about hazardous substances and construction products. ISA maps the information need for hazardous substances and construction products for all products that a company registers with ISA. ISA collects all required ISA dangerous goods data, such as Safety Data Sheets and ADR data, from suppliers and makes the legally required documentation available per product.

About

Powertora

Features
Read full description

Powertora turns your iPhone and a Bluetooth GPS sensor into a rolling-road dyno. Do one full-throttle pull followed by a coast-down on a quiet road, and Powertora calculates your car's real power and torque curves — crank-equivalent, in metric PS — from how it accelerates and how it slows. No rollers. No dyno shop. Just your car, a GPS sensor, and a stretch of road. MEASURE • Real power and torque curves vs RPM • Crank-equivalent output — the coast run captures drivetrain loss automatically • A quality score on every run, so you know how much to trust it • Works with RaceBox, Dragy and other NMEA GPS sensors FREE FOREVER • Unlimited measurement • Shareable power-curve card • Web reports POWERTORA PRO • PDF dyno reports with quality breakdowns • Merge 3–6 runs into one high-confidence curve • Before/after comparison exports • Multi-GPS fusion for extra accuracy • Unlimited garage • Road maps — curvature, grade and wind per run • Cloud backup and recovery HOW IT WORKS Pick your car, enter its weight, and drive: one pull to the limiter, then coast back down on the same road. Powertora does the physics. Measuring is free — upgrade to Pro for the full tuning workflow. Powertora Pro is an auto-renewable subscription (monthly or yearly) or a one-time lifetime purchase. Payment is charged to your Apple Account; a subscription auto-renews unless turned off at least 24 hours before the period ends, managed in your Apple Account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://powertora.app/privacy

Screenshots

Quintens ISA2 screens
Powertora4 screens

Verdict

The call

The clearest difference is in-app purchases: Quintens ISA at none against Powertora's 3. Quintens ISA also leads on iOS requirement (13.0 vs 15.1). Powertora's advantage is update cadence (every 2 weeks vs every 5 months). On price, ads and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Powertora sells 3 in-app purchases, starting at $5.99 per month. Quintens ISA asks for nothing beyond the download.

UpkeepUpdate frequency

Quintens ISA ships an update every 5 months, Powertora every 2 weeks. Both last shipped on October 25, 2026.

Scorecard3 real differences Ā· 3 level
Quintens ISA versus Powertora: the parameters behind the verdict, then further details
ParameterQuintens ISAPowertora
PriceFreeFree
Update frequencyEvery 5 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.0 — better15.1
Further details — not scored
Size30 MB47 MB
Age rating4+4+
DeveloperQuintens Advies & Management B.V.Sergei Belov

In-app purchases

None

Quintens ISA

No in-app purchases

3 purchases

Powertora

Subscriptions2
  • Powertora Pro — Monthly$5.991 Month
  • Powertora Pro — Yearly$34.991 Year
One-time1
  • Powertora Pro — Lifetime$69.99

Questions

Is Quintens ISA free?
Quintens ISA is free to download, with no in-app purchases.
Is Powertora free?
Powertora is free to download, with in-app purchases available.
Do Quintens ISA or Powertora have ads?
Neither Quintens ISA nor Powertora shows ads.
Which is updated more often, Quintens ISA or Powertora?
Quintens ISA ships an update every 5 months, and Powertora every 2 weeks. Most recently, Quintens ISA was updated on October 25, 2026 and Powertora on October 25, 2026.

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