Notepad vs SPC Tools
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Notepad
Capture thoughts, pictures, voice notes, and checklists with this powerful yet simple notepad. Securely store logins and passwords, organize with categories, and easily find information with quick search. Includes reminders and backup options.
- Capture thoughts, pictures, and voice records
- Create and manage checklists
- Secure storage for logins and passwords
- Organize notes with categories and colors
- Quick search functionality
- Backup and restore data
- Password protection for app startup
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Smart notepad makes it easy to capture your thought, pictures, voice records, checklist, birthdays, logins, and passwords. You can easily organize it and find it quickly later. The notepad helps you to keep all information with you. Smart notepad is very powerful but simple and easy to use. Main features: - Add notes - Add existing pictures to notes - Take photos and add to notes - Add voice records and listen to at any time - Add checklists - Add and remember birthdays - Secure storage for logins and passwords - Encoding with RSA and DES algorithms - Categories for notes - Colors for categories - A quick search for any data - Recent notes list - Restore removed notes from trash folder - Sorting notes by different fields - Birthdays reminder - Quick buttons to create notes - Quick copy data to memory - Password on application startup - Restore password to the email - Backup/restore data - Print notes - Share notes Supported languages: English, Russian, Spanish, Hindi, Portuguese, Indonesian, German, Bengali, French, Italian, Vietnamese, Chinese Simplified If you have any ideas for improvement just contact us by softser06@gmail.com Permissions Notice Camera: This is used to attach images to notes Microphone: This is used to attach voice records to notes Storage: This is used to backup/restore all notes (Ages 10+)
SPC Tools
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Run SPC, Cp/Cpk, control chart, AQL, OEE and Six Sigma calculations without spreadsheets. SPC Tools gives quality engineers a fast offline toolkit for manufacturing decisions on the shop floor. Built for quality engineers, manufacturing teams, Six Sigma practitioners, inspectors and students, SPC Tools brings the most common quality calculations into one clean iPhone and iPad app. PROCESS CAPABILITY - Cp / Cpk process capability calculator - Pp / Ppk process performance calculator - Clear capability interpretation CONTROL CHARTS - X-bar R control charts - I-MR individual moving range charts - UCL, CL and LCL results - Out-of-control point detection MEASUREMENT & INSPECTION - Gage R&R / MSA calculator - AQL sampling plans based on ISO 2859-1 - Sample size calculator MANUFACTURING PERFORMANCE - OEE calculator - Availability, performance and quality breakdown - Sigma level, DPMO and yield conversion QUALITY TOOLS - Pareto analysis - Histogram analysis - FMEA with RPN priority - Ishikawa fishbone diagram - Hypothesis testing - Alpha, beta and power analysis WORK FASTER - Save calculation history - Review previous results - Use the built-in formula reference - Works offline - No account required - Data is processed on device FREE & PRO SPC Tools includes 5 free calculators. SPC Tools Pro unlocks all 15 calculators with a 7-day free trial. Download SPC Tools and replace scattered spreadsheets with a practical quality engineering calculator built for daily manufacturing work. Payment will be charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless canceled at least 24 hours before the end of the current period. You can manage and cancel your subscriptions in your App Store account settings. Privacy Policy: https://saevaexe.github.io/spctools/privacy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: SPC Tools at Free against Notepad's $6.99. SPC Tools also leads on update cadence (every 3 days vs every 6 weeks). Notepad's advantage is in-app purchases (none vs 2) and iOS requirement (15.0 vs 17.0). On 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
SPC Tools is free to download; Notepad costs $6.99 up front. SPC Tools sells 2 in-app purchases, starting at $2.99 per month. Notepad asks for nothing beyond the download.
Notepad ships an update every 6 weeks, SPC Tools every 3 days. The most recent releases landed on October 19, 2026 and October 14, 2026 respectively.
| Parameter | Notepad | SPC Tools |
|---|---|---|
| Price | $6.99 | Free — better |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 91.7% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 6 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 79 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | siarhei yatsuk | Osman Seven |
In-app purchases
Notepad
No in-app purchases
SPC Tools
- Monthly7 Days trial$2.991 Month
- Annual7 Days trial$19.991 Year









