Comparison

Caliper Calculator vs Pocket,Ruler

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

Head to head

Small item measurement

Free

🔧 Utilities

No ratingsView app →

About

Caliper Calculator

Read full description

The Caliper Calculator helps in the conversion of millimeters to inches and vice versa. In addition, the decimals are shown as 1/8, 1/16 and 1/128 inch. This helps to set the caliper exactly to the calculated length.

About

Pocket,Ruler

Features

Read full description

A practical tool for measuring the length of small items Turn your mobile phone into a portable ruler, allowing you to measure small objects at any time. More accurate than ordinary distance meters

Screenshots

Caliper Calculator2 screens

Pocket,Ruler1 screens

Verdict

The call

The clearest difference is ads: Caliper Calculator at none against Pocket,Ruler's shown. Caliper Calculator also leads on iOS requirement (8.0 vs 16.6). On price, update cadence, 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

Caliper Calculator ships an update every 9 days, Pocket,Ruler fortnightly. The most recent releases landed on November 2, 2026 and October 6, 2026 respectively.

Scorecard2 real differences · 4 level

Caliper Calculator versus Pocket,Ruler: the parameters behind the verdict, then further details
Parameter	Caliper Calculator	Pocket,Ruler
Price	Free	Free
Update frequency	Every 9 days — better	Fortnightly
Ads	No — better	Yes
In-app purchases	No	No
Devices	iPhone, iPad, iPod — better	iPhone, iPad
Requires iOS	8.0 — better	16.6
Further details — not scored
Size	12 MB	6 MB
Age rating	4+	4+
Developer	Manfred Pilhar	旭王

In-app purchases

None

Caliper Calculator

No in-app purchases

None

Pocket,Ruler

No in-app purchases

Questions

Is Caliper Calculator free?

Caliper Calculator is free to download, with no in-app purchases.

Is Pocket,Ruler free?

Pocket,Ruler is free to download, with no in-app purchases.

Do Caliper Calculator or Pocket,Ruler have ads?

Pocket,Ruler shows ads; Caliper Calculator does not.

Which is updated more often, Caliper Calculator or Pocket,Ruler?

Caliper Calculator ships an update every 9 days, and Pocket,Ruler fortnightly. Most recently, Caliper Calculator was updated on November 2, 2026 and Pocket,Ruler on October 6, 2026.