Comparison

Slant Gauge vs Qprio

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

Head to head
About

Slant Gauge

Measure angles and slopes with a simple digital display that rotates for easy viewing. This tool speaks the angle aloud, aiding in adjustment work. Calibration can improve its accuracy.

Highlights
  • Simple angle and slope measurement
  • Spoken angle output
  • Digital display rotates for visibility
  • Calibration for improved accuracy
  • Useful for adjustment work
Features
Read full description

* A professional also uses at work. ・Simple measurement of an angle and a slope can be performed. ・An angle is spoken. It is helpful by adjustment work. ・If a calibration is carried out, accuracy will become good more. ・The digital display of an angle and a slope rotates so that it may be easy to be visible in accordance with inclination.

About

Qprio

Features
Read full description

Qprio is a simple and secure QR code reader designed for fast and comfortable use. Main Features: β€’ Real-time QR code scanning using the camera β€’ Scan QR codes from photos and files β€’ Save scan history automatically β€’ Open scanned URLs quickly β€’ Ad-free and easy-to-use interface Qprio also helps users avoid suspicious websites by displaying scanned URLs before opening them. All scan processing is performed locally on the device. No personal data or scan history is sent to external servers.

Screenshots

Slant Gauge4 screens
Qprio3 screens

Verdict

The call

The clearest difference is in-app purchases: Qprio at none against Slant Gauge's 1. Qprio also leads on ads (none vs shown). Slant Gauge's advantage is iOS requirement (15.6 vs 17.6). On price, update cadence and device support there is nothing between them.

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

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

Both are free to download. Slant Gauge sells 1 one-off in-app purchase. Qprio asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on November 1, 2026 and October 28, 2026 respectively.

Scorecard3 real differences Β· 5 level
Slant Gauge versus Qprio: the parameters behind the verdict, then further details
ParameterSlant GaugeQprio
PriceFreeFree
Positive reviews62.0% of reviewsβ€”
Update frequencyEvery 3 monthsEvery 3 months
AdsYesNo β€” better
In-app purchasesYesNo β€” better
MonetizationFree with in-app purchasesβ€”
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.6 β€” better17.6
Further details β€” not scored
Size22 MB1 MB
Age rating4+4+
DeveloperIsamu Sakamotomisty-egg,Y.K.

In-app purchases

1 purchases

Slant Gauge

One-time1
  • θ§’εΊ¦ε‚Ύζ–œθ¨ˆ$1.99
None

Qprio

No in-app purchases

Questions

Is Slant Gauge free?
Slant Gauge is free to download, with in-app purchases available.
Is Qprio free?
Qprio is free to download, with no in-app purchases.
Do Slant Gauge or Qprio have ads?
Slant Gauge shows ads; Qprio does not.
Which is updated more often, Slant Gauge or Qprio?
Slant Gauge ships an update every 3 months, and Qprio every 3 months. Most recently, Slant Gauge was updated on November 1, 2026 and Qprio on October 28, 2026.

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