Comparison

Timer 555 Calculator vs Ubicaly Worker

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

Head to head

Timer 555 Calculator

Free

🔧 Utilities

★ 3.98 ratingsView app →

About

Timer 555 Calculator

Calculate monostable and astable circuits for electronics projects. Determine pulse width and frequency, find component combinations, and save/upload data. Supports multiple languages.

Highlights

Monostable circuit pulse width calculation
Astable circuit frequency calculation
Component combination finder
Save component values to CSV
Upload CSV via AirDrop/iCloud Drive
Multi-language support

Features

Read full description

This app is used to calculate monostable and astable circuit. Features * Calculate pulse width of monostable circuit * Calculate frequency of astable circuit * Find out combination of components making a desire pulse width in monostable circuit * Find out combination of components making a desire frequency in astable circuit * Saving component values in CSV file * Upload generated CSV files via AirDrop or iCloud Drive * Support English, German, French, Italian, Spanish, Portuguese, Japanese, Korean, Russian

About

Ubicaly Worker

Features

Read full description

Ubicaly Worker permite conocer la localización de la persona, estado del dispositivo, alertas...

Screenshots

Timer 555 Calculator4 screens

Ubicaly Worker4 screens

Verdict

The call

The clearest difference is in-app purchases: Ubicaly Worker at none against Timer 555 Calculator's 1. Ubicaly Worker also leads on update cadence (every 2 weeks vs every 3 months). Timer 555 Calculator's advantage is iOS requirement (13.2 vs 15.6). 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. Timer 555 Calculator sells 1 one-off in-app purchase. Ubicaly Worker asks for nothing beyond the download.

UpkeepUpdate frequency

Timer 555 Calculator ships an update every 3 months, Ubicaly Worker every 2 weeks. The most recent releases landed on October 5, 2026 and October 12, 2026 respectively.

Scorecard3 real differences · 7 level

Timer 555 Calculator versus Ubicaly Worker: the parameters behind the verdict, then further details
Parameter	Timer 555 Calculator	Ubicaly Worker
Price	Free	Free
Rating	3.9 (8 ratings) — better	—
Positive reviews	100.0% of reviews	—
Number of ratings	8 — better	—
Update frequency	Every 3 months	Every 2 weeks — better
Ads	No	No
In-app purchases	Yes	No — better
Monetization	Free with in-app purchases	—
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	13.2 — better	15.6
Further details — not scored
Size	3 MB	45 MB
Age rating	4+	4+
Developer	Siu Yuen Ho	ERICTEL S.L.

In-app purchases

1 purchases

Timer 555 Calculator

One-time1

Unlock Pro feature$0.99

None

Ubicaly Worker

No in-app purchases

Questions

Is Timer 555 Calculator free?

Timer 555 Calculator is free to download, with in-app purchases available.

Is Ubicaly Worker free?

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

Do Timer 555 Calculator or Ubicaly Worker have ads?

Neither Timer 555 Calculator nor Ubicaly Worker shows ads.

Which is updated more often, Timer 555 Calculator or Ubicaly Worker?

Timer 555 Calculator ships an update every 3 months, and Ubicaly Worker every 2 weeks. Most recently, Timer 555 Calculator was updated on October 5, 2026 and Ubicaly Worker on October 12, 2026.