SafeFolder vs Machining Assistant
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SafeFolder
Securely manage and store all your files locally on your device. Protect sensitive documents, photos, and videos with password-protected private spaces and encrypted compression. Access and edit files remotely via WiFi.
- Powerful file management
- Private encrypted storage
- WiFi file transfer
- Document preview and media playback
- Encrypted compression and decompression
- Local file storage
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SafeFolder App can turn your iPhone into a portable folder, and it's also an all-round file manager and file browser. 【Main Features】 - Powerful File Manager SafeFolder provides powerful file management capabilities. You can store various documents, images, audio, videos and other files in the App. Supports sorting by name, type, time, etc., and supports file sharing, moving, copying, pasting, encrypted compression, decompression, etc. - Private Space to Protect Your Private Files Private Space is a completely independent hidden storage space in the App. To enter Private Space, you must verify an independent access password to ensure that private files are not seen by others. - WiFi File Management Connect your iPhone to a WiFi hotspot, open "WiFi File Browser", and you can upload, download, edit, delete and perform other operations on files in the computer browser, making it easy to manage files. - Document Preview, Media Playback, File Compression Supports preview and viewing of various formats of documents such as word, ppt, pdf, etc., and supports audio and video playback. Supports file decompression, and you can set an independent password for each compressed file to ensure file security. - Privacy and Security The App does not need to interact with the server, and all files are securely stored in the local App, which is safe and reliable. 【Contact and Feedback】 Email: ch@kanchuan.com Website: https://app.kanchuan.com/en/safefolder
Machining Assistant
This tool simplifies complex machining calculations for engineers and technicians. It offers features for cutting parameters, material weight, tolerance and fit analysis, and thread data. Designed for efficiency and accuracy, it works offline and provides a user-friendly interface.
- Cutting parameter calculation
- Material weight and volume
- Tolerance and fit analysis
- Thread data and formulas
- Offline functionality
- Material database
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Designed for mechanical engineers, CNC operators, and machining techs – makes complex calculations simple & fast! 【Core Functions】 *Cutting Parameters • Supports turning, milling, drilling • Auto-calculates spindle speed, feed rate, cutting time • Built-in material DB with recommended values • Saves parameters for quick recall *Material Weight • Supports round bar, plate, hex bar, tube • Built-in densities for steel, aluminum, copper, etc. • Custom density input allowed • Real-time weight & volume, one-tap copy *Tolerance & Fit • Supports tolerance & fit modes • Covers IT01–IT18 tolerance grades • Auto-identifies fit type (clearance, transition, interference) • Calculates upper/lower deviations, max/min sizes *Thread Formula Guide • Full metric thread data (M1–M64) • Inch thread specs • Provides major, pitch, minor dia., tap drill size • Includes common machining formulas for quick reference 【App Highlights】 • Sci-fi UI, great visual experience • Simple & intuitive – easy to use • Accurate, reliable data – meets national standards • Save parameters to boost efficiency • Works offline – calculate anywhere, anytime 【Who It's For】 • Mechanical design engineers • CNC programmers & operators • Machining technicians • Mechanical engineering students • Manufacturing pros Make machining calculations no longer a hassle – Machining Assistant helps you get twice the result with half the effort!
Screenshots
Verdict
The clearest difference is review sentiment: SafeFolder at 83% against Machining Assistant's 0%. Machining Assistant's advantage is price ($0.99 vs $1.99). On update cadence, ads, in-app purchases and monetization model 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
SafeFolder costs $1.99 and Machining Assistant $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
SafeFolder ships an update every 6 weeks, Machining Assistant every 5 weeks. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.
| Parameter | SafeFolder | Machining Assistant |
|---|---|---|
| Price | $1.99 | $0.99 — better |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 83.3% of reviews — better | 0.0% of reviews |
| Number of ratings | 1 — better | — |
| Update frequency | Every 6 weeks | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.6 — better |
| Further details — not scored | ||
| Size | 5 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | 明伟 陈 | 小燕 陈 |
Customer experience
SafeFolder
Machining Assistant
In-app purchases
SafeFolder
No in-app purchases
Machining Assistant
No in-app purchases
Questions
Is SafeFolder free?
Is Machining Assistant free?
Do SafeFolder or Machining Assistant have ads?
Which is updated more often, SafeFolder or Machining Assistant?
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