Comparison

Drill Calc vs FaceClock Pro

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

Head to head
About

Drill Calc

This utility app helps you determine the correct drill bit size for threaded holes. It supports both inch and metric threads, calculates close and tight fit hole sizes, and provides tables for standard drill bit sizes and pipe information.

Highlights
  • Calculates drill bit size for threaded holes
  • Supports inch and metric threads
  • Displays close and tight fit hole sizes
  • Includes standard inch fractional and numeric drill bit tables
  • Provides pipe size information
  • Offers data on common wood screw sizes
Features
Read full description

Need to find the right drill bit size for a hole? Drill Calc calculates the correct drill bit size to use for threaded holes, based on the bolt (tap) diameter and thread pitch and percentage, for both inch and metric threads. Close and tight fit hole sizes for many popular drill sizes are also displayed. It also has tables of standard inch fractional and numeric drill bit sizes, as well as complete information for various pipe sizes. There is also detailed information about the commonly used sizes of wood screws. Buy your copy of Drill Calc today, and put away your drill chart.

About

FaceClock Pro

This app announces the current time at specified intervals in multiple languages. It also offers customizable clock faces, background images, and alarm clock functionality with music player controls and a battery indicator.

Highlights
  • Announce the time in multiple languages
  • Customizable clock faces and backgrounds
  • Alarm clock with snooze
  • Music player control
  • Battery indicator
  • Today's widget
Features
Read full description

Turn your iPhone or iPad into a beautiful analog bedside clock, with alarms, weather, a sleep timer and widgets. Now rebuilt for iOS 26. Description: FaceClock turns your iPhone or iPad into an analog clock you'll actually want on your nightstand, your desk or your kitchen counter. Twenty clock faces Pick from four groups: Minimal (bars, dots, rings), Numerals (including Roman, Arabic-Indic and Chinese numbers), 24-Hour dials, and Counter-Clockwise faces that run backwards. Choose a color theme, including a dim red Night theme that won't keep you awake, and a light theme for bright rooms. Make it yours Set any wall color or use your own photo as the background, then drag and pinch to frame it. Add the date, the digital time in 12- or 24-hour form, and the current temperature. Drag up or down anywhere on the clock to dim the screen for night-time. A real alarm Built on Apple's alarm system, so it rings even when your phone is locked or on silent. Choose the time, which days it repeats and how long snooze lasts. Sleep timer Count down with white noise, or an alarm at the end. The timer keeps going on your Lock Screen and in the Dynamic Island. Weather on the face Local temperature and conditions from Apple Weather, right on the dial. Visual effects behind the clock can follow your weather: sunlight, fog, rain or snow. Hear the time Have the clock speak the time on the hour, half hour or quarter hour, in your choice of language. Or just double-tap the clock whenever you want to know. Widgets Clock widgets for the Home Screen in every size, including extra large on iPad, plus a minimal clock for the Lock Screen. They follow the clock settings you chose in the app. Also included Now Playing controls for the Music app · battery ring with charging status · keep-screen-awake for bedside use · full iPad support in portrait and landscape · English and Japanese.

Screenshots

Drill Calc4 screens
FaceClock Pro4 screens

Verdict

The call

The clearest difference is monetization model: FaceClock Pro at free against Drill Calc's paid. FaceClock Pro also leads on update cadence (every 2 months vs every 18 months) and rating (4.4 vs 4.1). Drill Calc's advantage is review sentiment (92% vs 73%) and iOS requirement (12.0 vs 26.0). On price, ads, 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

Drill Calc costs $2.99 and FaceClock Pro $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

FaceClock Pro holds the better App Store score, 4.4 against 4.1. That said, the two scores are not equally well evidenced: FaceClock Pro has 147 ratings behind it against 19, so its average is the more settled of the two. Written reviews complicate that: 92% of Drill Calc's written reviews are positive against 73% of FaceClock Pro's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Drill Calc ships an update every 18 months, FaceClock Pro every 2 months. The most recent releases landed on October 4, 2026 and October 20, 2026 respectively.

Scorecard6 real differences · 4 level
Drill Calc versus FaceClock Pro: the parameters behind the verdict, then further details
ParameterDrill CalcFaceClock Pro
Price$2.99$2.99
Rating4.1 (19 ratings)4.4 (147 ratings) — better
Positive reviews91.7% of reviews — better72.9% of reviews
Number of ratings19147 — better
Update frequencyEvery 18 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better26.0
Further details — not scored
Size5 MB14 MB
Age rating4+4+
DeveloperBlack Cat SystemsiReka Soft

Customer experience

Drill Calc

All ratings19 ratings
Positive78.9%
Neutral5.3%
Negative15.8%
Written reviews12 reviews
Positive91.7%
Neutral0.0%
Negative8.3%

FaceClock Pro

All ratings147 ratings
Positive87.8%
Neutral5.4%
Negative6.8%
Written reviews140 reviews
Positive72.9%
Neutral12.1%
Negative15.0%

In-app purchases

None

Drill Calc

No in-app purchases

None

FaceClock Pro

No in-app purchases

Questions

Is Drill Calc free?
Drill Calc costs $2.99, with no in-app purchases.
Is FaceClock Pro free?
FaceClock Pro costs $2.99, with no in-app purchases.
Which has better reviews, Drill Calc or FaceClock Pro?
FaceClock Pro is rated higher. Drill Calc averages 4.1 out of 5 from 19 ratings, while FaceClock Pro averages 4.4 from 147 ratings.
Do Drill Calc or FaceClock Pro have ads?
Neither Drill Calc nor FaceClock Pro shows ads.
Which is updated more often, Drill Calc or FaceClock Pro?
Drill Calc ships an update every 18 months, and FaceClock Pro every 2 months. Most recently, Drill Calc was updated on October 4, 2026 and FaceClock Pro on October 20, 2026.

Other comparisons