iKnowKeep vs Protractor Measuring Angle
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iKnowKeep
Automate your finances with AI-powered accounting. This app extracts data from emails and SMS, categorizes transactions, and provides visual reports for smart financial insights and budget management.
- Automated email and SMS bill parsing
- AI-powered smart transaction categorization
- Multi-dimensional financial insights and reports
- Expenditure budget setting and monitoring
- Categorized bill management with recurring bills
- AI voice bookkeeping assistant
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iKnowKeep — Automating Accounting, Empowering Analysis [3.0.1 New: Fully Adapted for iOS 27 Liquid Glass — Every Page Refreshed] * Full liquid-glass visual upgrade: native glass tab bar, buttons, segmented controls and sheets, with a new purple theme and polished light/dark modes. * Brand-new landscape bookkeeping form: rotate your phone for full-wheel entry, with payees, projects, tags, categories and accounts created right inside the form. * Bills page rebuilt as a mail-style timeline: today first, grouped by day, paused/expired recurring bills auto-hidden. * Flows page gains sticky year/month/day navigation with quick date jumps, plus a one-row swipe menu (convert to transfer/income/expense, copy, refund, delete). * AI voice bookkeeping upgraded to server-side synthesis for a more natural voice. [AI Voice Bookkeeping Assistant] * Long-press the home logo to summon the AI assistant — log expenses by voice, no manual input. * Smart recognition auto-categorizes entries; supports multi-dimensional bill analysis and voice playback. 【Fully Automated Accounting】 Email Bill Parsing: Recognizes bank statements and e-commerce billing emails, automatically extracting date, amount, merchant, and transaction type, syncing to accounts. SMS Expense Capture: Detects bank deductions and quick-pay SMS, extracting time, amount, and counterparties, automatically categorizing transactions. Automated Workflow: Auto-completes logging, categorization, and account linkage when bills or SMS arrive, saving time and preventing errors. 【AI-Powered Smart Categorization】 Multi-Dimensional Classification: Adds merchant, payer, beneficiary, and project tags beyond basic categories (e.g., Taxi → Platform → Self → Commute). Adaptive Learning: Learns from history to refine preferences, getting smarter with use. 【Multi-Dimensional Insights】 Visual Reports: Pie charts for assets/liabilities, donut charts for income/expense distribution. Trend Tracking: Monthly/yearly bar charts reveal asset changes and expense fluctuations. Granular Filters: Drill down by category, merchant, or payment channel. 【Expenditure Budget Management】 Budget Setting: Flexible budgets by categories, subcategories, account books, controlling expenditures with real-time tracking and overspending reminders. Budget Monitoring: Real-time display of budget, used amount, remaining balance, and execution rate. Automatic warnings when approaching or exceeding budget. Budget Analysis: Comparison charts (budget vs. actual) and historical analysis to discover patterns and optimize settings. Budget Adjustment: Create, edit, delete budgets, dynamically adjusted as needed. 【Categorized Bill Management】 Four Bill Types: Email Bills (traceable originals), SMS Bills (transaction alerts), Recurring Bills (auto-generated by day/week/month), Templates (one-click reuse). Recurring Setup: Supports workday, calendar day, or custom cycles, auto-generating records. Templates: Customize amount, category, channel, and notes for frequent scenarios. 【Ledger & Account Center】 Multi-Ledger Management: Create personal, family, or project ledgers with isolated records. Full support for create, edit, delete. Account Balances: Consolidates bank cards, wallets, and cash, showing total assets, net worth, and liabilities. Through Automated Recording → Smart Categorization → Multi-Dimensional Insights → Budget Management → Scenario-Based Management → Full Financial Control, iKnowKeep transforms accounting from manual to automatic and precise.
Protractor Measuring Angle
This app transforms your iPhone into a versatile digital measuring tool. It offers multiple functions to measure angles, slopes, distances, and even height using your device's sensors and camera. Save and review your measurement history for future reference.
- Inclinometer for real-time tilt measurement
- Screen protractor for precise angle reading
- Camera level with horizon overlay
- Photo angle measurement on existing images
- Height calculator using trigonometry
- AR Measure for 3D space measurements
- On-screen ruler and digital compass
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Protractor Measuring Angle turns your iPhone into a precise digital toolbox — measure any angle, slope, or distance in seconds. 8 TOOLS IN ONE APP ▸ Inclinometer Real-time tilt measurement using your device sensors. Edge mode reads walls and frames; Flat mode works face-up on surfaces. Tap Calibrate to zero any offset. Freeze the reading with one tap. ▸ Screen Protractor Drag two arms to any angle and read the value instantly. Perfect for blueprints, technical drawings, and any image that needs an exact angle. ▸ Camera Level Live camera with a horizon overlay line. Freeze the frame to capture and save the reading. ▸ Photo Angle Measure angles directly on photos from your library using the same drag-and-lock protractor. ▸ Height Calculator Point at the top of a tree, building, or mast. Enter the distance to its base and your eye height — the app computes the exact height using trigonometry. ▸ AR Measure Drop points in augmented reality to measure real-world distances and the angle between any three points in 3D space. ▸ On-Screen Ruler A calibrated ruler in centimeters or inches. Run calibration once and it stays precise on your device. ▸ Compass Digital compass with cardinal and intercardinal directions. FLEXIBLE UNITS Switch between degrees, radians, percent slope, and roof pitch (X:12) for angles. Length reads in cm, in, m, or ft. MEASUREMENT HISTORY Every saved reading is logged with a thumbnail, timestamp, and optional note. Review, edit, or share any past measurement. Works offline. No account needed. Privacy Policy - https://msrtech.net/apps/protractor-measuring/privacy.html Terms - https://msrtech.net/apps/protractor-measuring/terms.html EULA - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is device support: iKnowKeep at 3 against Protractor Measuring Angle's 1. iKnowKeep also leads on iOS requirement (15.6 vs 17.0). On price, update cadence, ads and in-app purchases 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.
Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.
| Parameter | iKnowKeep | Protractor Measuring Angle |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.7 (3 ratings) — better |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | — | 3 — better |
| Update frequency | Every 2 days | Every 2 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 31 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | 伟明 陈 | MSR TECH LLP |
Customer experience
iKnowKeep
Protractor Measuring Angle
In-app purchases
iKnowKeep
No in-app purchases
Protractor Measuring Angle
No in-app purchases
Questions
Is iKnowKeep free?
Is Protractor Measuring Angle free?
Do iKnowKeep or Protractor Measuring Angle have ads?
Which is updated more often, iKnowKeep or Protractor Measuring Angle?
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