Comparison

ChronoLog vs Chessconnect

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

Head to head
About

ChronoLog

This app provides professional-grade tools to track the accuracy of mechanical watches. It offers audio timegraphing, photo offset measurement, and tap timing, along with detailed analytics and atomic time synchronization for collectors and enthusiasts.

Highlights
  • Audio timegrapher for rate, beat error, and amplitude
  • Photo offset measurement against atomic time
  • Tap timing for quick offset logging
  • Track accuracy trends over time
  • Atomic time synchronization
  • Detailed performance graphs and analytics
  • Manage and organize watch collection
Features
Read full description

ChronoLog — Timegrapher, Watch Accuracy Tracker & Collection Log Turn your iPhone into a timegrapher. ChronoLog listens to your mechanical watch through the microphone and reads its rate in seconds per day — then keeps measuring over days and weeks, on your wrist, so you know how the watch really runs, not just how it ran on the bench. No subscription. No account. One-time purchase unlocks everything. AUDIO TIMEGRAPHER • Rate in seconds per day from your watch's tick, in about 30 seconds — the same number a timegrapher gives you. • Every reading carries a confidence score, so you know when to trust it and when to record again. • Movements from 18,000 to 36,000 bph, detected automatically or set per watch. ACCURACY OVER TIME — THE PART A TIMEGRAPHER CAN'T DO A bench reading captures one moment. ChronoLog logs every measurement into timing runs and charts the daily rate as you actually wear the watch: watch it drift, catch magnetization, and see when it needs regulation or a service — before it costs you minutes a week. • Photo offset: photograph the dial against atomic time for the most precise manual reading. • Tap timing: tap on the second for a quick log with any watch, quartz included. • Tag measurements by position, temperature or activity to learn what moves the rate. ACCURACY REPORT — NEW A health score for every watch, timekeeping trends per run, and an anonymous comparison against the same models worldwide — find out whether your Submariner or your SKX keeps time better than most. Share a private report link that expires on its own. ATOMIC TIME Every measurement is referenced to NTP atomic time, not your phone's clock. Use the live atomic clock, with an optional seconds tick, to set your watches to the second. YOUR COLLECTION, ORGANISED • Unlimited watches with photos, brand, model, calibre, serial number, service history and notes. • Wear log: swipe to mark what you're wearing, then see your rotation as a calendar, timeline and stats. • Moon phase: last and next full moon with the days between — set a moonphase complication in seconds. • Full backup and restore. CSV export for your records or your watchmaker. WHY COLLECTORS CHOOSE CHRONOLOG A timegrapher is for adjusting a watch. ChronoLog is for knowing it — clean, fast, ad-free, built by a collector in Boulder, Colorado, who reads and answers every review. Download ChronoLog and find out how your watches really run.

About

Chessconnect

Connect your electronic chessboard to your mobile device for an enhanced online chess experience. Play on major platforms, enjoy full game features, and utilize board-specific enhancements.

Highlights
  • Connect electronic chessboards to mobile
  • Seamless integration with Chess.com, Lichess.org, and more
  • Play against bots or human opponents
  • Supports Chess960
  • Enhanced gameplay features
  • Wide electronic board compatibility
Features
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Great news for iOS users! The Chessconnect app is now available, bringing the most popular browser extension for electronic chess boards directly to your mobile device. Just like the acclaimed Chrome extension, the Chessconnect iOS app lets you seamlessly connect your smart chessboard to top platforms like Chess.com, Lichess.org, Noctie.ai, and Chessiverse.com. Now, you can enjoy the authentic feel of a physical board combined with the power of online play, anywhere you go! Why You'll Love the Chessconnect iOS App: Play Anywhere: Connect your electronic chessboard to your iOS phone or tablet for an unmatched portable chess experience. 100% Free: Get all the great features of Chessconnect without any cost or hidden fees. Seamless Integration: Enjoy direct, legal connections to leading chess sites using their official APIs. Extensive Board Support: Compatible with almost all electronic chess boards that are equipped with Bluetooth LE. Full Online Features: Play against bots or human opponents, participate in live tournaments, solve puzzles, and dive into studies – all from your physical board. Enhanced Gameplay: Benefit from features like optional move delay, sound or speech announcements, and move/time display on compatible chess clocks. Chess960 Support: Enjoy full support for Chess960 (Fischer Random Chess). Download the Chessconnect iOS app today and elevate your game! (Please note: DGT's electronic chess boards require the Chessconnect adapter for DGT and iOS. See here for more information: https://chessconnect.de/#chessconnect-adapter)

Screenshots

ChronoLog4 screens
Chessconnect4 screens

Verdict

The call

The clearest difference is monetization model: Chessconnect at free against ChronoLog's paid. Chessconnect also leads on rating (5.0 vs 4.6) and review sentiment (100% vs 85%). ChronoLog's advantage is ratings volume (238 vs 8). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ChronoLog sells 2 one-off in-app purchases and Chessconnect sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Chessconnect holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: ChronoLog has 238 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 85% of ChronoLog's written reviews are positive against 100% of Chessconnect's.

UpkeepUpdate frequency

ChronoLog ships an update every 3 weeks, Chessconnect every 5 weeks. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

Scorecard4 real differences · 6 level
ChronoLog versus Chessconnect: the parameters behind the verdict, then further details
ParameterChronoLogChessconnect
PriceFreeFree
Rating4.6 (238 ratings)5.0 (8 ratings) — better
Positive reviews85.0% of reviews100.0% of reviews — better
Number of ratings238 — better8
Update frequencyEvery 3 weeks — betterEvery 5 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.4
Further details — not scored
Size50 MB13 MB
Age rating4+4+
Developertyler woodJORN DR. GEHRING

Customer experience

ChronoLog

All ratings230 ratings
Positive90.4%
Neutral2.6%
Negative7.0%
Written reviews100 reviews
Positive85.0%
Neutral9.0%
Negative6.0%

Chessconnect

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

ChronoLog

One-time2
  • Premium$5.99
  • Premium$6.99
4 purchases

Chessconnect

One-time4
  • English Breakfast$3.99
  • Darjeeling$8.99
  • Earl Grey$22.99
Show 1 more
  • Chai Latte$44.99

Questions

Is ChronoLog free?
ChronoLog is free to download, with in-app purchases available.
Is Chessconnect free?
Chessconnect is free to download, with in-app purchases available.
Which has better reviews, ChronoLog or Chessconnect?
Chessconnect is rated higher. ChronoLog averages 4.6 out of 5 from 238 ratings, while Chessconnect averages 5.0 from 8 ratings.
Do ChronoLog or Chessconnect have ads?
Neither ChronoLog nor Chessconnect shows ads.
Which is updated more often, ChronoLog or Chessconnect?
ChronoLog ships an update every 3 weeks, and Chessconnect every 5 weeks. Most recently, ChronoLog was updated on November 7, 2026 and Chessconnect on November 5, 2026.

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