Comparison

uCareBaby vs Protractor Edge

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

Head to head

The most precise protractor

Free

🔧 Utilities

★ 4.02 ratingsView app →

About

uCareBaby

Features

Read full description

Baby camera

About

Protractor Edge

This utility app functions as a precise digital protractor for measuring angles on your device. It offers a smart instrument for accurate angle measurement, supporting iPhone and iPad. The app is free to download and use.

Highlights

Precise angle measurement
Smart instrument
Digital protractor
Supports iPhone and iPad

Features

Read full description

Protractor - smart instrument to measure angles. Support: https://k1er.github.io/

Screenshots

uCareBaby3 screens

Protractor Edge1 screens

Verdict

The call

The clearest difference is in-app purchases: uCareBaby at none against Protractor Edge's 2. uCareBaby also leads on ads (none vs shown) and iOS requirement (9.0 vs 13.0). On price, update cadence 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. Protractor Edge sells 2 one-off in-app purchases. uCareBaby asks for nothing beyond the download.

UpkeepUpdate frequency

uCareBaby ships an update monthly, Protractor Edge every 6 weeks. The most recent releases landed on October 26, 2026 and October 7, 2026 respectively.

Scorecard3 real differences · 7 level

uCareBaby versus Protractor Edge: the parameters behind the verdict, then further details
Parameter	uCareBaby	Protractor Edge
Price	Free	Free
Rating	—	4.0 (2 ratings) — better
Positive reviews	—	66.7% of reviews
Number of ratings	—	2 — better
Update frequency	Monthly — better	Every 6 weeks
Ads	No — better	Yes
In-app purchases	No — better	Yes
Monetization	—	Free with in-app purchases
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	9.0 — better	13.0
Further details — not scored
Size	9 MB	17 MB
Age rating	4+	+4
Developer	TRANWO TECHNOLOGY CORP.	向阳杨

In-app purchases

None

uCareBaby

No in-app purchases

2 purchases

Protractor Edge

One-time2

Support for a cup of coffee$1.99
Ads-free experience$1.99

Questions

Is uCareBaby free?

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

Is Protractor Edge free?

Protractor Edge is free to download, with in-app purchases available.

Do uCareBaby or Protractor Edge have ads?

Protractor Edge shows ads; uCareBaby does not.

Which is updated more often, uCareBaby or Protractor Edge?

uCareBaby ships an update monthly, and Protractor Edge every 6 weeks. Most recently, uCareBaby was updated on October 26, 2026 and Protractor Edge on October 7, 2026.