Comparison

Vernier Caliper Simulator vs Caliper

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

Head to head
About

Vernier Caliper Simulator

Practice reading a vernier caliper with this free and easy application. Simply slide your finger to grip an object and take your measurement. Enter your guess to see if you're correct and improve your skills.

Highlights
  • Virtual vernier caliper
  • Interactive grip simulation
  • Measurement reading practice
  • Guess and check functionality
  • Skill improvement tool
Features
Read full description

Practice reading a vernier caliper using this free and easy app. Ever wanted to practice reading a vernier caliper but didn't have a set? No worries, now you can practice on your iPhone using this free and easy app. Just slide your finger across to grip the red object and take your reading. Enter your guess and press "Guess" to see if you got it right. Keep practicing and you'll be able to read the vernier caliper like a pro!

About

Caliper

Read full description

MEASURE. PRACTICE. BUILD SKILL. Caliper: Vernier Trainer turns a mechanical vernier scale into short, visual exercises. Find the moving zero, read the main scale, match a vernier line, and put the measurement together. START FREE Level 1 contains five whole-millimetre readings. The guided tutorial is free too. No account is required. LEARN AT YOUR PACE Work through the current 30-level course, from whole and half millimetres to 0.02 mm steps. Practice reading, setting the caliper, and timed Speed rounds. Your progress and active round are saved on your device, so you can resume the same exercises. CHALLENGE YOURSELF Explore four Challenge worlds—Easy, Normal, Hard and Impossible—with 30 levels each. The free Easy 01 round shares Level 1. The remaining Challenge levels require Full Access. Earn achievements as you progress. ONE-TIME FULL ACCESS Unlock Levels 2–30, Read, Set and Speed practice, and the remaining Challenge levels with one non-consumable in-app purchase. The price is shown in your local App Store currency. Restore your purchase in Settings. Choose light or dark appearance and one of 11 in-app languages.

Screenshots

Vernier Caliper Simulator3 screens
Caliper4 screens

Verdict

The call

The clearest difference is in-app purchases: Vernier Caliper Simulator at none against Caliper's 1. Vernier Caliper Simulator also leads on iOS requirement (8.0 vs 16.4). Caliper's advantage is update cadence (every 2 days vs every 17 months). On price, 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

Both are free to download. Caliper sells 1 one-off in-app purchase. Vernier Caliper Simulator asks for nothing beyond the download.

UpkeepUpdate frequency

Vernier Caliper Simulator ships an update every 17 months, Caliper every 2 days. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
Vernier Caliper Simulator versus Caliper: the parameters behind the verdict, then further details
ParameterVernier Caliper SimulatorCaliper
PriceFreeFree
Rating1.0 (2 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 17 monthsEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPod — betteriPhone
Requires iOS8.0 — better16.4
Further details — not scored
Size12 MB37 MB
Age rating4+4+
DeveloperJiun Wei ChiaConcept of Proof B.V.

In-app purchases

None

Vernier Caliper Simulator

No in-app purchases

1 purchases

Caliper

One-time1
  • Caliper Full Access$2.99

Questions

Is Vernier Caliper Simulator free?
Vernier Caliper Simulator is free to download, with no in-app purchases.
Is Caliper free?
Caliper is free to download, with in-app purchases available.
Do Vernier Caliper Simulator or Caliper have ads?
Neither Vernier Caliper Simulator nor Caliper shows ads.
Which is updated more often, Vernier Caliper Simulator or Caliper?
Vernier Caliper Simulator ships an update every 17 months, and Caliper every 2 days. Most recently, Vernier Caliper Simulator was updated on November 1, 2026 and Caliper on October 31, 2026.

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