DocKit vs Freestyle Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DocKit
This app offers a powerful offline document scanner with AI-powered filters for clean, professional scans. It provides a comprehensive suite of PDF editing tools, including merging, splitting, converting, and text extraction, all while prioritizing user privacy with on-device processing.
- AI-powered document scanning
- Offline PDF editing tools
- Merge, split, and reorder PDFs
- Convert PDFs to images
- Extract text from PDFs and images (OCR)
- Digital signatures and password protection
- PDF compression and optimization
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Dockit is a smart document scanner and full PDF toolkit — AI-powered filters, a complete set of PDF tools, and everything works fully offline. Scan documents with your camera and get clean, professional results instantly. Smart filters run entirely on-device to auto-detect edges, correct perspective, remove shadows, and produce crisp scans whether you're capturing a receipt, a contract, an ID card, or a passport. DOCUMENT SCANNER Scan in four modes built for different needs — General for any document, Document for standard paper sizes like A4 and Letter, ID Card for capturing both sides of an identity card, and Passport for travel documents. Every scan is processed locally with no data sent anywhere. ORGANIZE YOUR PDFs Merge multiple PDFs into one, or split a file your way — by page range, by file size, or at fixed intervals. Reorder, rotate, delete, or extract pages with a few taps. CONVERT & EXTRACT Turn PDFs into images or build a PDF from your photos in seconds. Extract text from any PDF or use OCR to pull text out of scanned images — all offline. SECURITY & SIGNING Sign documents digitally, add custom watermarks, protect files with a password, or remove protection from any PDF. Your documents, fully under your control. COMPRESS & OPTIMIZE Reduce PDF file sizes significantly without losing quality — useful for sharing, emailing, or simply freeing up storage. PRIVACY BY DESIGN Dockit works entirely offline. Nothing is uploaded and no data is collected. What's on your device stays on your device. SUBSCRIPTION & PREMIUM FEATURES Dockit offers a free version with core scanning features. Advanced tools require a subscription. Premium features include: • OCR (text recognition) • PDF compression • Digital signatures • Password protection for PDFs • ID card and passport scanning • Extended scan limits Subscription details are shown in-app before purchase. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Freestyle Calculator
This app offers real-time expression editing with instant results as you type, eliminating the need for an equals button. It features a searchable history, unit conversions, and customizable keyboard layouts and themes for a personalized calculation experience.
- Real-time expression preview
- Live editing with cursor repositioning
- Searchable, annotated calculation history
- Unit conversions for various metrics
- Customizable keyboard layouts and themes
- Cloud sync for backup and restore
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Freestyle Calculator gives you real-time expression editing on iPhone and iPad. Start typing and watch the result update live — no equals button needed. Move the cursor anywhere in your expression, edit freely, and the preview adjusts instantly. Every calculation is saved with a searchable, annotated history. CORE FEATURES ▸ Real-time preview — see results as you type ▸ Expression editing — backspace, insert, or reposition the cursor ▸ Searchable history — pin, copy, annotate, or reuse any calculation ▸ Unit conversion — length, mass, area, volume, temperature, time ▸ Reference exchange rates — multiple providers with automatic fallback ▸ Widgets — exchange rates and formulas on your home and lock screen PRO FEATURES ▸ Keyboard Studio — rearrange keys, save multiple layouts (Compact / Standard / Scientific) ▸ Theme Studio — 10 keyboard themes, accent colors, key density, dark mode ▸ Custom Formulas — reusable workflows with variables and live FX rates ▸ Sessions — organize work into named groups with notes and pins ▸ Cloud Sync — back up everything to iCloud, restore on any device Always available: real-time preview, full history, unit conversion, and scientific keys. No ads, no accounts, no server dependency. Your data stays on your device by default. Privacy Policy: https://apps.foamzou.com/freestyle-calculator/privacy/ Terms of Use: https://apps.foamzou.com/freestyle-calculator/terms/
Screenshots
Verdict
The clearest difference is rating: Freestyle Calculator at 5.0 against DocKit's 4.3. On price, review sentiment, ratings volume and update cadence 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. DocKit sells 3 in-app purchases, starting at $4.99 per month and Freestyle Calculator sells 6 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.
Freestyle Calculator holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 6 and 8 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
DocKit ships an update every 5 days, Freestyle Calculator weekly. Both last shipped on November 5, 2026.
| Parameter | DocKit | Freestyle Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (6 ratings) | 5.0 (8 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 6 | 8 — better |
| Update frequency | Every 5 days — better | Weekly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.5 — better | 16.0 |
| Further details — not scored | ||
| Size | 135 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Mohamed Al-Kainai | 锋 邹 |
Customer experience
DocKit
Freestyle Calculator
In-app purchases
DocKit
- Monthly$4.991 Month
- Yearly$29.991 Year
- Lifetime$59.99
Freestyle Calculator
- CalcStudio Pro Monthly$0.991 Month
- CalcStudio Pro Annual7 Days trial$3.991 Year
- Small Tip$0.99
- Medium Tip$3.99
- CalcStudio Pro Lifetime$7.99
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- Large Tip$9.99









