Comparison

Stopwatch 4 Time Study vs Ideon

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Stopwatch 4 Time Study

This app helps record cycle times and perform simple time measurements. It offers automatic recording via accelerometer or camera, detailed statistical analysis, and data export options.

Highlights
  • Automatic recording via accelerometer/camera
  • Detailed statistical analysis (OEE, averages, dispersion)
  • Time recording with comments
  • Export data via email (CSV) or PDF report
  • Cloud sync and sharing
  • Customizable views (black/white, color-coded values)
Features
Read full description

Stopwatch 4 Time Study is a professional yet easy-to-use app for recording, analyzing, and documenting cycle times on iPhone and iPad. Features * Display times in decimal minutes (1/100 min) or minutes and seconds * Add, deactivate, reactivate, and delete individual measurements * Record cycle times manually or automatically * Automatic triggering using the accelerometer to detect movement or vibration * Automatic triggering using the camera by comparing a reference image with the current image * Define the number of parts produced per cycle * Apply individual performance ratings to measurements * Add notes and predefined reasons for interruptions * Configure side buttons for convenient operation Statistics and Analysis * Parts per hour * Average, range, minimum, and maximum * Accuracy (epsilon) and standard deviation * Number of valid measurements * Estimated number of additional measurements required to reach the configured accuracy target * Color-coded minimum and maximum values * Distribution chart, individual-value chart, and boxplot * Optional display or hiding of deactivated measurements * Outlier analysis based on the 1.5 IQR rule Managing Time Studies * Rename and delete recordings * Organize recordings in folders * Move recordings between folders * Sort recordings by name or date * Search recordings * Import and export time studies in the .sft format using the iOS Share Sheet * Export measurement data as CSV with configurable decimal and value separators * Create and restore complete ZIP backups Reports and Sharing * Generate comprehensive PDF time-study reports * Include statistics, charts, individual measurements, and notes * Share SFT, CSV, PDF, and ZIP files using the iOS Share Sheet iPad and Process Flow * Optimized split-view interface for iPad * Perform standard time studies using the same features available on iPhone * Import Process Flow projects prepared with the Stopwatch 4 TS Web App * Record individual activities and complete production cycles * Add part notes and interruption reasons * Export completed Process Flow measurements while preserving the original project and folder structure Additional Options * Light and dark appearance * Haptic feedback * Optional prevention of automatic screen locking * Configurable OEE, accuracy, performance-rating, and CSV settings * Read-only access to existing legacy iCloud recordings The legacy iCloud area is provided only for accessing and downloading existing cloud recordings. Uploading new recordings and sharing them using Sharing Keys are no longer supported.

About

Ideon

This app provides a private, scrollable feed to save and revisit ideas, links, files, and notes. Capture content manually or share from other apps, then organize with related notes and gentle reminders. It's designed for easily managing small but useful pieces of knowledge.

Highlights
  • Private feed for ideas, links, files, and notes
  • Share links and files from other apps
  • Manual posts with various media attachments
  • Searchable concept library
  • Gentle optional reminders for saved ideas
  • Local storage for manually captured content
Features
Read full description

Ideon is a private, scrollable feed for the ideas, links, files, concepts, terminology, and insights you want to keep. Capture an idea manually with text, photos, video, audio, or file attachments. Share links and supported files from other apps into Ideon, then keep everything in a simple personal feed you can revisit later. Ideon is built for the small pieces of knowledge that are too useful to lose: AI answers, articles, places, documents, diagrams, study notes, and real-life observations. Add related notes to older posts, connect follow-up thoughts, and let Ideon gently bring useful ideas back when they may be worth revisiting. There are no decks to organize, sessions to complete, or study streaks to protect. Pull to reshuffle, keep scrolling, search your library, and mark ideas as useful, fragile, or mastered to influence when they return. Features: • A private feed for ideas, links, files, and notes • Share links and supported files from other apps • Manual posts with text, camera, photos, video, audio, and file attachments • Related notes and comments for follow-up thinking • Searchable concept library • Gentle optional reminders for older saved ideas • Subtle spaced-repetition weighting without flashcards • Local storage for manually captured content • No advertising or cross-app tracking Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.ideonapp.app/privacy/

Screenshots

Stopwatch 4 Time Study3 screens
Ideon4 screens

Verdict

The call

The clearest difference is in-app purchases: Stopwatch 4 Time Study at none against Ideon's 1. Ideon's advantage is update cadence (every 5 days vs every 2 months) and iOS requirement (16.0 vs 18.0). On price, rating, ratings volume and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Ideon sells 1 one-off in-app purchase. Stopwatch 4 Time Study asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Stopwatch 4 Time Study against 5.0 for Ideon. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

UpkeepUpdate frequency

Stopwatch 4 Time Study ships an update every 2 months, Ideon every 5 days. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

Scorecard4 real differences · 6 level
Stopwatch 4 Time Study versus Ideon: the parameters behind the verdict, then further details
ParameterStopwatch 4 Time StudyIdeon
PriceFreeFree
Rating5.0 (1 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews—
Number of ratings12 — better
Update frequencyEvery 2 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad — betteriPhone
Requires iOS18.016.0 — better
Further details — not scored
Size11 MB8 MB
Age rating4+4+
DeveloperThomas HerzogMohamed Abdelsalam

Customer experience

Stopwatch 4 Time Study

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Ideon

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Stopwatch 4 Time Study

No in-app purchases

1 purchases

Ideon

One-time1
  • Ideon Lifetime$2.99

Questions

Is Stopwatch 4 Time Study free?
Stopwatch 4 Time Study is free to download, with no in-app purchases.
Is Ideon free?
Ideon is free to download, with in-app purchases available.
Which has better reviews, Stopwatch 4 Time Study or Ideon?
Stopwatch 4 Time Study and Ideon are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.
Do Stopwatch 4 Time Study or Ideon have ads?
Neither Stopwatch 4 Time Study nor Ideon shows ads.
Which is updated more often, Stopwatch 4 Time Study or Ideon?
Stopwatch 4 Time Study ships an update every 2 months, and Ideon every 5 days. Most recently, Stopwatch 4 Time Study was updated on November 2, 2026 and Ideon on November 5, 2026.

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