Comparison

Studio Clock vs Ruler Studio

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

Head to head

Ruler, Grid & Ring Sizer

Free

🔧 Utilities

No ratingsView app →

About

Studio Clock

Features

Read full description

Simple Studio Clock – A minimalist studio clock for iPhone, iPad, and Mac. Does exactly what it needs to – no more, no less. More features coming soon!

About

Ruler Studio

Features

Read full description

Precise measuring tools Ruler, grid, calibration, and ring sizing in one clean workspace. Ruler & Grid Studio High-precision multi-unit rulers with a built-in grid for everyday measurements. Smart Ring Sizer Align a real ring with the guide to estimate diameter, circumference, and size. Card Calibration Use a standard card edge to improve real-world measurement accuracy. Free Measuring Toolkit Full-screen grids, scale presets, and measurement overlays are included for everyone. Precise ruler, grid, calibration, and ring sizing tools.

Screenshots

Studio Clock2 screens

Ruler Studio4 screens

Verdict

The call

The clearest difference is in-app purchases: Studio Clock at none against Ruler Studio's 1. Studio Clock also leads on update cadence (every 3 days vs every 6 weeks). Ruler Studio's advantage is iOS requirement (13.0 vs 16.6). 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. Ruler Studio sells 1 one-off in-app purchase. Studio Clock asks for nothing beyond the download.

UpkeepUpdate frequency

Studio Clock ships an update every 3 days, Ruler Studio every 6 weeks. The most recent releases landed on October 2, 2026 and October 10, 2026 respectively.

Scorecard3 real differences · 3 level

Studio Clock versus Ruler Studio: the parameters behind the verdict, then further details
Parameter	Studio Clock	Ruler Studio
Price	Free	Free
Update frequency	Every 3 days — better	Every 6 weeks
Ads	No	No
In-app purchases	No — better	Yes
Devices	iPhone, iPad	iPhone, iPad, iPod — better
Requires iOS	16.6	13.0 — better
Further details — not scored
Size	1 MB	19 MB
Age rating	4+	4+
Developer	Noah Patrick Redeker	Spyridon Bousios

In-app purchases

None

Studio Clock

No in-app purchases

1 purchases

Ruler Studio

One-time1

Ruler Pro Lifetime$2.99

Questions

Is Studio Clock free?

Studio Clock is free to download, with no in-app purchases.

Is Ruler Studio free?

Ruler Studio is free to download, with in-app purchases available.

Do Studio Clock or Ruler Studio have ads?

Neither Studio Clock nor Ruler Studio shows ads.

Which is updated more often, Studio Clock or Ruler Studio?

Studio Clock ships an update every 3 days, and Ruler Studio every 6 weeks. Most recently, Studio Clock was updated on October 2, 2026 and Ruler Studio on October 10, 2026.