Comparison

Clocked Timer vs O

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

Head to head
About

Clocked Timer

This app provides professional-grade timing for groups, managing multiple athletes and lap times with precision. It offers automatic tracking, performance analytics, and instant results, all while working offline and keeping data private.

Highlights
  • Individual stopwatches for large groups
  • Automatic lap tracking
  • Smart group management
  • Performance analytics
  • Instant leaderboards
  • Offline functionality
  • Private data storage
Features
Read full description

Clocked turns your iPhone into a complete race timing system. Time every racer at once, share results in seconds, and run everything from weekday practice to race day — no chip timing hardware, no spreadsheets. Built for coaches, PE teachers, running clubs, and small-event organizers. TIME EVERY RACER AT ONCE • One live master clock, one timer per athlete • Mass start, interval start, scheduled start, or individual manual starts • Multi-lap races with per-lap splits • Undo protection and a screen that stays awake at the finish line SHARE RESULTS IN SECONDS • Generate a public results link the moment the race ends — parents and athletes view it in any browser, no app or login needed • Turn links on or off anytime, and copy them with one tap • Export results as CSV, PDF, or PNG TURN TWO PHONES INTO A TIMING SYSTEM • Use a second device at the start line with a simple join code • Start racers from the start line, stop them at the finish — like chip timing, without the hardware TRAINING OR REAL COMPETITIONS • Training mode keeps practice simple with sequential numbers • Competition mode adds bib numbers throughout — setup, timing, results, and exports • Distance and laps in metric or imperial BUILD YOUR TEAM ROSTER • Organize athletes into color-coded groups • Reuse your roster race after race • Full race history with instance comparison, editable times, and DNF handling Whether you're timing cross country practice, a ski team time trial, a swim meet, or your club's Saturday 5K — Clocked gets every athlete's time right, and gets it to them fast. — Clocked Pro subscription — Clocked Pro unlocks Competition mode, two-device timing, unlimited race history, and PDF/CSV export. $2.99/month or $19.99/year with a 7-day free trial on the yearly plan. Payment is charged to your Apple Account; subscriptions renew automatically unless canceled at least 24 hours before the end of the period. Manage or cancel anytime in your Apple Account settings. Privacy Policy: https://clockedtimer.app/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

O

Features
Read full description

O-Time is a simple and reliable start clock designed for orienteering events. The app provides accurate countdown timing, a clear time display and support for start lists, making it perfect for both small training sessions and larger competitions. Key features: – precise start countdown – start list support (XML import) – display of current and upcoming runners – sound signals before start – full-screen mode readable from a distance – customizable clock appearance – works offline O-Time is built for organizers and orienteering clubs, but it can be used anywhere a precise start timing system is needed. No ads. No unnecessary features. Just works.

Screenshots

Clocked Timer4 screens
O3 screens

Verdict

The call

The clearest difference is price: Clocked Timer at Free against O's $2.99. O's advantage is in-app purchases (none vs 3) and update cadence (every 3 weeks vs every 5 months). On ads, device support and iOS requirement 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

Clocked Timer is free to download; O costs $2.99 up front. Clocked Timer sells 3 in-app purchases, starting at $2.99 per month. O asks for nothing beyond the download.

UpkeepUpdate frequency

Clocked Timer ships an update every 5 months, O every 3 weeks. The most recent releases landed on September 18, 2026 and August 26, 2026 respectively.

Scorecard3 real differences · 7 level
Clocked Timer versus O: the parameters behind the verdict, then further details
ParameterClocked TimerO
PriceFree — better$2.99
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 5 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.017.6 — better
Further details — not scored
Size46 MB4 MB
Age rating4+4+
DeveloperFoldup Studio LLCAnna Adamska

In-app purchases

3 purchases

Clocked Timer

Subscriptions2
  • Clocked Pro Monthly$2.991 Month
  • Clocked Pro Yearly$19.991 Year
One-time1
  • Unlimited Group Creation$9.99
None

O

No in-app purchases

Questions

Is Clocked Timer free?
Clocked Timer is free to download, with in-app purchases available.
Is O free?
O costs $2.99, with no in-app purchases.
Do Clocked Timer or O have ads?
Neither Clocked Timer nor O shows ads.
Which is updated more often, Clocked Timer or O?
Clocked Timer ships an update every 5 months, and O every 3 weeks. Most recently, Clocked Timer was updated on September 18, 2026 and O on August 26, 2026.

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