Comparison

Elevator Mechanic Prep vs Slowdial

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

Head to head
About

Elevator Mechanic Prep

Prepare for your elevator mechanic licensing exam with this comprehensive study tool. It covers essential topics like ASME A17.1 code, electrical theory, mechanical systems, and safety devices, offering over 1,000 practice questions with detailed explanations.

Highlights
  • ASME A17.1 code specifics
  • NEC electrical requirements
  • OSHA standards
  • Mechanical systems
  • Safety device guide
  • 1,000+ practice questions
  • Detailed explanations with references
Features
Read full description

ELEVATOR MECHANIC PREP: PASS YOUR STATE LICENSING EXAM Elevator mechanic licensing exams test ASME A17.1 Safety Code, NEC electrical requirements, OSHA standards, and mechanical systems. Candidates who fail are most often weak on ASME A17.1 code specifics, electrical theory, and safety device testing intervals. TRACTION VS HYDRAULIC COMPARISON Traction elevator: steel ropes and traction sheave driven by electric motor. Geared traction uses a gearbox (slower speeds). Gearless traction for high-rise and high-speed. Counterweight reduces motor load. Safety devices: governor, safeties, buffers, final limit switches. No practical speed limit, suitable for high-rise. Hydraulic elevator: pump, jack, and oil push the car up. Gravity controls lowering. Types: in-ground direct acting, above-ground holeless, roped hydraulic. Safety devices: lowering valve, pressure relief valve, rupture valve, cylinder leak detector. Maximum practical travel approximately 50 feet, not suitable for high-rise. ASME A17.1 CODE REFERENCE Pit: minimum 2 feet deep for traction, lighting at top of ladder, stop switch within 2 feet, ladder required if pit exceeds 35 inches. Machine room: minimum 7-foot headroom, temperature 50 to 90 degrees F, disconnect switch within sight of equipment. Hoistway: fire-resistive construction, no combustible materials. Inspection intervals: periodic inspection annually, no-load safety test every 5 years, full-load safety test every 5 years, governor and rope gripper test every 5 years. SAFETY DEVICE GUIDE Governor: centrifugal, activates when car speed exceeds set overspeed, trips the safety, tested annually. Car safety: grips guide rails to stop car in overspeed or free fall. Instantaneous (lower speeds) or progressive (higher speeds). Buffer: absorbs energy at end of travel. Oil buffers (traction), spring buffers (hydraulic). Door interlock: prevents movement unless hoistway door is locked. Pit stop switch: breaks control circuit, within reach from pit ladder. 1,000+ PRACTICE QUESTIONS ELECTRICAL THEORY AND NEC (30%): Three-phase power, motor theory, motor control circuits, NEC Article 620, grounding and bonding, branch circuits, disconnect means, GFCIs in machine rooms. ASME A17.1 CODE (25%): Pit, machine room, and hoistway requirements, car enclosure, inspection and test intervals, emergency operation, accessibility requirements. MECHANICAL SYSTEMS (25%): Traction components (sheave, ropes, counterweight, car frame, guide rails), hydraulic components (pump, jack, valve, cylinder), brake systems, lubrication. SAFETY DEVICES (10%): Governor function and overspeed settings, safety types, buffer types, door interlock operation, testing intervals. OSHA AND SAFETY (10%): OSHA 1926 Subpart R, general industry, lockout/tagout, fall protection in hoistways, confined space for pits. Every question includes a detailed explanation with ASME A17.1 and NEC section references. FREE: 5 questions per day, traction vs hydraulic comparison, safety device overview. No account required. MONTHLY ($9.99/month): Full 1,000+ questions, Traction vs Hydraulic Comparison, ASME A17.1 Code Reference, Safety Device Guide, reference library, exam simulator, 3-day free trial. ANNUAL ($24.99/year): Everything in Monthly. Save over 55 percent. Best value. LIFETIME ($49.99): One payment. Permanent access. PASS PROMISE: Complete all questions with 80% or higher average, hold active subscription for 3 months, still do not pass. We extend your access by 4 months at no charge. voltexam.com/pass-promise Not affiliated with NEIEP, IUEC, ASME, or any state elevator licensing board. Code references are for educational exam preparation only. Privacy Policy: https://www.voltexam.com/privacy Terms of Service: https://www.voltexam.com/terms

About

Slowdial

Features
Read full description

Slowdial shows time as an amount: a colored disc that shrinks as time passes. Children (and grown-ups) can see "how much is left" without reading a clock. NO ADS, EVER. Slowdial never shows an ad — not before the timer, not after it. It is safe to hand to a child or to put in front of a class. THE TIME YOU PICK FILLS THE WHOLE CIRCLE Pick 5 minutes or 45 — the disc starts full either way. Prefer the classic 60-minute dial? Switch with one tap. ON YOUR LOCK SCREEN TOO — FREE The disc keeps shrinking on the Lock Screen and in the Dynamic Island, without opening the app. Use it as a laundry timer — watch the washer and dryer count down on your Lock Screen. When time is up you get a sound and a vibration, even with the screen locked. FREE • Full-screen shrinking disc • Presets from 1 minute to 1 hour, Wash 52 min and Dry 60 min, or any time you like • Whole-circle or 60-minute dial • End sound and vibration • Lock Screen and Dynamic Island disc SLOWDIAL PRO — one-time purchase, no subscription • Classroom mode: just the disc, full screen. Taps don't stop it. Hide the numbers. Pick the color. • Sequences: "Clean up 5 min → Wash hands 3 min → Snack", with a picture and a word for each step • Intervals: get ready, then work and rest for up to 20 rounds (a Tabata sample is included). Each interval session can be saved to Apple Health as a workout if you turn it on. • Controls (iOS 18 or later): start your favorite timer from Control Center, the Lock Screen or the Action Button • Home Screen and Lock Screen widgets PRIVATE BY DESIGN • No account. Your timers stay on your iPhone. • Only anonymous usage counts are sent (which parts of the app are used) — never your timer names. You can turn this off in Settings.

Screenshots

Elevator Mechanic Prep4 screens
Slowdial4 screens

Verdict

The call

Elevator Mechanic Prep and Slowdial are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Elevator Mechanic Prep sells 3 in-app purchases, starting at $9.99 per month and Slowdial sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
Elevator Mechanic Prep versus Slowdial: the parameters behind the verdict, then further details
ParameterElevator Mechanic PrepSlowdial
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequency—Weekly
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhoneiPhone, iPad — better
Requires iOS17.017.0
Further details — not scored
Size6 MB4 MB
Age rating4+4+
DeveloperDeeun Inc.Minari Taniguchi

In-app purchases

3 purchases

Elevator Mechanic Prep

Subscriptions2
  • Pro - Monthly3 Days trial$9.991 Month
  • Elevator Prep Pro Annually$24.991 Year
One-time1
  • Elevator - Lifetime Pro$49.99
1 purchases

Slowdial

One-time1
  • Slowdial Pro$7.99

Questions

Is Elevator Mechanic Prep free?
Elevator Mechanic Prep is free to download, with in-app purchases available.
Is Slowdial free?
Slowdial is free to download, with in-app purchases available.
Do Elevator Mechanic Prep or Slowdial have ads?
Neither Elevator Mechanic Prep nor Slowdial shows ads.

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