Comparison

Watch Tracker vs Oscillo

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

Head to head
About

Watch Tracker

Measure and record how your watches perform over time. This app helps you track accuracy, identify issues like magnetism, and understand positional variance with detailed charts and exports. It provides a smart reference time and a magnetism check utility for watch collectors.

Highlights
  • Record watch accuracy in seconds per day (SPD)
  • Build and manage a watch collection
  • Smart atomic-time reference
  • Capture real-world context (position, notes)
  • Magnetism check using phone's magnetometer
  • Export data as PDF/PNG or CSV
Features
Read full description

Measure how your watches really run - day by day. Watch Tracker helps you record accuracy, spot trends, and catch issues like magnetism, all with a clean workflow made for collectors and tinkerers. Build your collection - Add each watch with a friendly guided form (help tips included). - Edit or remove any time—by default you can track one watch; unlock unlimited with a one-time in-app purchase. Record accuracy in seconds per day (SPD) - Start a measurement and tap when your watch matches the reference time. - We color-code the result (fast/slow) and calculate seconds per day, the standard way enthusiasts and chronometer tests express rate. View history charts and long-term trends to see how your regulation or service impacted performance. wristlog.com Smart reference time - The app fetches an atomic-time-disciplined reference (with a clear progress spinner). If the network is unavailable, it gracefully falls back to device time so you never lose a session. Capture real-world context - Add an optional note and watch position (dial up, dial down, crown up/down/right)—the same orientations used in chronometer testing—so you can compare positional variance. Time Sync utility - See the current time adjusted by the atomic offset and re-sync whenever you like—useful for setting your collection precisely. Magnetism Check - Use your phone’s built-in magnetometer to watch the surrounding field (in μT). Set a baseline; values turn red when the field spikes beyond a safe threshold. Magnetized hairsprings often stick coils together, making a watch run fast—or even stop—so catching spikes early matters. Exports for your records - Share a crisp Accuracy Card (PDF/PNG) summarizing current rate and trend chart. - Export a CSV of all measurements for your personal logs or watchmaker. Why it helps - Clarity: SPD + charts make performance easy to understand and compare. - Context: Positions and comments reveal what really changes rate. - Confidence: Atomic-time reference reduces guesswork when setting or regulating. - Care: Magnetism is common in modern life (speakers, bags, gadgets); quick checks help you avoid surprises between services. Thoughtful by design - No account required. - Works offline after first sync (network only needed for reference time). - Fast, friendly, and built for everyday use. Whether you’re tracking a new diver, tuning a cherished vintage piece, or keeping a whole box on-spec, Watch Tracker gives you the tools to measure, understand, and enjoy your watches more.

About

Oscillo

Measure the accuracy of mechanical watches using your iPhone's microphone. Analyze rate, beat error, and amplitude, and organize your collection with AI-powered identification and reporting. Track performance over time and receive weekly summaries.

Highlights
  • Measure rate, beat error, and amplitude
  • AI watch identification
  • AI-generated watch portraits
  • Collection management
  • Measurement history and trends
  • Precision tracking
  • Weekly watch reports
Read full description

Oscillo is a watch timegrapher for iPhone. Use your iPhone microphone to measure the same metrics a professional watchmaker checks: rate, beat error, and amplitude. No adapters, cables, or expensive equipment. Built for mechanical watch collectors who care about precision. HOW TO MEASURE 1. Place the iPhone microphone flat against the watch crystal or case back. 2. Start recording the tick sounds and wait for the measurement to finish. 3. Review your rate, beat error, and amplitude. KEY FEATURES • Watch Rate Checker — Measure rate (seconds/day), beat error (ms), and amplitude (degrees). Supports the beat rates listed below. • AI Watch Identification — Snap a photo and let AI detect the brand, model, and reference number automatically. • AI-Generated Portraits — Oscillo turns your watch photos into magazine-style cards for your collection. • Collection Management — Browse your watches in grid, full, or list views. Mark watches as favorites, archive them, change their order, and organize your collection. • Measurement History — Detailed charts and trends for every watch, with health badges that help you interpret your measurements. • Precision Tracking — Record manual readings from the dial and follow your watch’s drift over days. Compare observations before and after a regulation or service. • Guided Measurement Cycles — Record timegrapher readings in different watch positions. With Oscillo Pro, complete all six positions and compare results with a saved reference cycle. • Weekly Watch Report — A seven-day summary of your collection: average rate, most-worn watch, best reading, and suggested next actions. • Profile and Wearing Habits — A personal calendar of activity, collection milestones, timing performance, and a heatmap that shows which watches you wear and when. • Reminders — Optional local notifications remind you to log which watch you wore, capture the next precision reading, or open your weekly report. • Offline Access — Your saved collection and measurements are available on your device. Cloud sync and AI features require an internet connection. ACCURACY & ENVIRONMENT • Best results in a quiet room — background noise can affect readings. • Place the case back flat against the microphone for a strong, consistent signal. • If readings seem unstable, move to a quieter space or adjust mic position. • Supported beat rates: 12,000 / 14,400 / 17,280 / 18,000 / 19,800 / 21,600 / 25,200 / 28,800 / 36,000 / 43,200 / 72,000 BPH. DESIGNED FOR COLLECTORS Whether you own one watch or fifty, Oscillo helps you follow changes in each movement’s timing performance over time. Payments and Renewal Oscillo offers limited free use and optional Pro purchases, including subscriptions and a one-time purchase. Payment will be charged to your Apple Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Your Apple Account will be charged for renewal within 24 hours prior to the end of the current period. You can manage or turn off auto-renew in your Account settings at any time after purchase. Privacy Policy: https://oscillo.app/privacy Terms of Service: https://oscillo.app/terms

Screenshots

Watch Tracker4 screens
Oscillo4 screens

Verdict

The call

The clearest difference is rating: Oscillo at 4.9 against Watch Tracker's 1.0. Oscillo also leads on ratings volume (28 vs 1). Watch Tracker's advantage is iOS requirement (16.6 vs 26.0). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Watch Tracker sells 1 one-off in-app purchase and Oscillo sells 5 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Oscillo holds the better App Store score, 4.9 against 1.0. That said, the two scores are not equally well evidenced: Oscillo has 28 ratings behind it against 1, so its average is the more settled of the two.

Scorecard3 real differences · 7 level
Watch Tracker versus Oscillo: the parameters behind the verdict, then further details
ParameterWatch TrackerOscillo
PriceFreeFree
Rating1.0 (1 ratings)4.9 (28 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings128 — better
Update frequency—Weekly
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad — betteriPhone
Requires iOS16.6 — better26.0
Further details — not scored
Size5 MB78 MB
Age rating4+4+
DeveloperVladislav ZhirnovAttila Halasz

Customer experience

Watch Tracker

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Oscillo

All ratings28 ratings
Positive96.4%
Neutral0.0%
Negative3.6%

In-app purchases

1 purchases

Watch Tracker

One-time1
  • Full version$1.99
5 purchases

Oscillo

Subscriptions2
  • Oscillo Pro Monthly$6.991 Month
  • Oscillo Pro Annual7 Days trial$29.991 Year
One-time3
  • Oscillo Pro Lifetime$49.99
  • Founder's Lifetime$49.99
  • Oscillo Pro Lifetime$59.99

Questions

Is Watch Tracker free?
Watch Tracker is free to download, with in-app purchases available.
Is Oscillo free?
Oscillo is free to download, with in-app purchases available.
Which has better reviews, Watch Tracker or Oscillo?
Oscillo is rated higher. Watch Tracker averages 1.0 out of 5 from 1 ratings, while Oscillo averages 4.9 from 28 ratings.
Do Watch Tracker or Oscillo have ads?
Neither Watch Tracker nor Oscillo shows ads.

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