NerdCalc vs PullSheet Elevator Diagnostics
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NerdCalc
Perform calculations across binary, hexadecimal, and decimal number bases simultaneously. Easily switch input modes and see results update instantly for all bases. Supports unsigned and 2's complement for negative numbers, along with arithmetic, logic, and bitwise operations.
- Simultaneous base display
- Switchable input modes
- Unsigned and 2's complement support
- Arithmetic operations
- Logic operations
- Bitwise shifting
Read full descriptionHide full description
NerdCalc is a binary, hexadecimal and decimal calculator that displays all three number bases at the same time. With NerdCalc, you can quickly switch which base you are inputting and the result of your calculations is always updated for all three bases, no matter what the current input mode. NerdCalc supports both unsigned and 2’s complement, to allow for negative numbers, and can perform basic arithmetic and logic operations as well as bitwise shifting. Enjoy!
PullSheet Elevator Diagnostics
This app assists qualified elevator mechanics in diagnosing equipment issues. It guides users through describing problems, exploring causes, recording observations, and narrowing down diagnoses with AI-powered insights. Reports can be saved, reopened, and exported for offline access.
- AI-powered symptom analysis
- Guided diagnosis process
- Equipment troubleshooting for elevators and escalators
- Voice dictation and read-aloud reports
- Offline logbook for saved diagnoses
- Exportable diagnostic reports
Read full descriptionHide full description
PullSheet helps qualified elevator mechanics work through symptoms and keep a record of what they find. Describe the problem in your own words, review possible causes, record your observations, and narrow the diagnosis as you gather evidence. EQUIPMENT Elevators, freight elevators, escalators, moving walks, LULA elevators, and dumbwaiters. DIAGNOSE, HOW-TO, AND CALCULATE Ask about a symptom, a procedure, or a calculation. Reports lead with the likely cause inferred from your equipment and symptoms, followed by checks and optional follow-up questions. Add observations or measurements to narrow the next answer. VOICE AND LOGBOOK Dictate a question or have a report read aloud. Save diagnoses, findings, and resolutions in your logbook, reopen a previous session, and export a report. Saved reports remain available offline. New AI requests require an internet connection. EXISTING PULLSHEET CUSTOMERS Sign in to your existing PullSheet account to check subscription access and recover your old account logbook. Apple subscribers can use Restore Purchases. AI GUIDANCE Answers are generated by AI and can be incorrect. Verify them against the equipment, approved manufacturer documentation, applicable safety requirements, and your own training. PullSheet does not replace a qualified mechanic's judgment and does not provide instructions to bypass safety circuits. SUBSCRIPTION PullSheet Pro is $29.99 per month. Eligible new subscribers can start with a 7-day free trial. The price and trial eligibility appear before purchase. Payment is charged to your Apple Account. The subscription renews automatically unless canceled at least 24 hours before the current period ends. Manage or cancel your subscription in your App Store account settings. Support: https://pullsheet.app/support Privacy: https://pullsheet.app/privacy Terms: https://pullsheet.app/terms
Screenshots
Verdict
The clearest difference is monetization model: NerdCalc at free against PullSheet Elevator Diagnostics's subscription. NerdCalc also leads on ratings volume (183 vs 2). PullSheet Elevator Diagnostics's advantage is update cadence (every 2 days vs every 19 months) and rating (5.0 vs 4.8). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
PullSheet Elevator Diagnostics holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: NerdCalc has 183 ratings behind it against 2, so its average is the more settled of the two.
NerdCalc ships an update every 19 months, PullSheet Elevator Diagnostics every 2 days. The most recent releases landed on October 9, 2026 and October 6, 2026 respectively.
| Parameter | NerdCalc | PullSheet Elevator Diagnostics |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (183 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 83.3% of reviews | — |
| Number of ratings | 183 — better | 2 |
| Update frequency | Every 19 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Subscription |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 0 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Nidal Fakhouri | Intent Mesh LLC |
Customer experience
NerdCalc
PullSheet Elevator Diagnostics
In-app purchases
NerdCalc
No in-app purchases
PullSheet Elevator Diagnostics
No in-app purchases
Questions
Is NerdCalc free?
Is PullSheet Elevator Diagnostics free?
Which has better reviews, NerdCalc or PullSheet Elevator Diagnostics?
Do NerdCalc or PullSheet Elevator Diagnostics have ads?
Which is updated more often, NerdCalc or PullSheet Elevator Diagnostics?
Other comparisons
