Comparison

Multiple Stopwatches & Laps vs IOL Calc

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

Head to head
About

Multiple Stopwatches & Laps

Track multiple time intervals simultaneously with this advanced stopwatch and countdown tool. Organize your timers with named, color-coded entries, add comments to laps, and group them into folders. Export your data to CSV for further analysis.

Highlights
  • Unlimited simultaneous stopwatches
  • Named and color-coded timers
  • Lap tracking with comments
  • Folder organization
  • CSV data export
  • Focus mode for full-screen view
  • Siri Shortcuts integration
Features
Read full description

Run multiple stopwatches at the same time — the feature iOS should have had. Create unlimited named, color-coded stopwatches, track laps with comments, organize everything in folders, and export to CSV when you need the data. MULTIPLE STOPWATCHES • Run unlimited stopwatches simultaneously • Optional “single stopwatch” mode (starting one stops the others) • Drag & drop reordering • Millisecond precision (toggle per stopwatch) LAPS + NOTES • Record laps with split times • Add comments to any lap • Fastest/slowest lap highlighting • Smart lap deletion (delete or merge time back) FOLDERS + BULK ACTIONS • Group stopwatches into folders (Work, Gym, Cooking...) • Start / stop / reset all stopwatches in a folder • Folder carousel for quick filtering FOCUS MODE • Full-screen timer view with big numbers • Minimal controls, no distractions EXPORT + BACKUP • Export to CSV (Excel, Numbers, Google Sheets) • Backup & restore with a shareable file • Selective export/import (choose what to include) SIRI SHORTCUTS • Create, start, and stop stopwatches by voice • Automate workflows in the Shortcuts app CUSTOMIZATION • 11 preset colors + unlimited custom colors • Compact or regular layout • Multiple app icons + dark mode • Supports Dynamic Type Thanks for using Stopwatches — your ratings and feedback help a lot!

About

IOL Calc

Read full description

ИОЛ КАЛЬКУЛЯТОР - это удобное приложение, которое помогает катарактальному офтальмохирургу рассчитать силу ИОЛ (Интраокулярная линза) для операции по катаракте по формулам SRKII и SRK/T. ***** ЕСЛИ ВЫ НЕ КАТАРАКТАЛЬНЫЙ ОФТАЛЬМОХИРУРГ, ВЕРОЯТНО, ВАС НЕ ЗАИНТЕРЕСУЕТ ЭТО ПРИЛОЖЕНИЕ! ***** ***** ПОЖАЛУЙСТА, ПРОКОНСУЛЬТИРУЙТЕСЬ С ВРАЧОМ, ПРЕЖДЕ ЧЕМ ПРИНИМАТЬ КАКИЕ-ЛИБО МЕДИЦИНСКИЕ РЕШЕНИЯ НА ОСНОВЕ РЕЗУЛЬТАТОВ ДАННОГО ПРИЛОЖЕНИЯ!***** Используя ИОЛ КАЛЬКУЛЯТОР, Вы соглашаетесь с *Условиями использования*. В данном приложении используются формулы расчета SRKII и SRK/T. https://en.m.wikipedia.org/wiki/Intraocular_lens_power_calculation https://pubmed.ncbi.nlm.nih.gov/9562086/ _____________________________ The IOL CALCULATOR is a user-friendly application that allows the cataract surgeon to perfom IOL (Intraocular lens) Power calculations by SRKII and SRK/T formulas. ***** IF YOU ARE NOT A CATARACT SURGEON, YOU PROBABLY WILL NOT BE INTERESTED IN THIS APPLICATION! ***** ***** PLEASE CONSULT YOUR DOCTOR BEFORE MAKING ANY MEDICAL DECISIONS BASED ON THE RESULTS OF THIS APPLICATION!***** Using the IOL CALCULATOR, you agree with the Terms of Use. This application uses the well-known calculation formulas - SRKII and SRK/T.  https://en.m.wikipedia.org/wiki/Intraocular_lens_power_calculation https://pubmed.ncbi.nlm.nih.gov/9562086/

Screenshots

Multiple Stopwatches & Laps4 screens
IOL Calc4 screens

Verdict

The call

The clearest difference is in-app purchases: IOL Calc at none against Multiple Stopwatches & Laps's 2. IOL Calc also leads on ads (none vs shown). Multiple Stopwatches & Laps's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 17.6). On price and update cadence 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. Multiple Stopwatches & Laps sells 2 one-off in-app purchases. IOL Calc asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

Scorecard4 real differences · 6 level
Multiple Stopwatches & Laps versus IOL Calc: the parameters behind the verdict, then further details
ParameterMultiple Stopwatches & LapsIOL Calc
PriceFreeFree
Rating4.6 (199 ratings) — better—
Positive reviews86.9% of reviews—
Number of ratings199 — better—
Update frequencyEvery 2 monthsEvery 2 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.6 — better17.6
Further details — not scored
Size13 MB5 MB
Age rating4+12+
DeveloperRoman KotovSergei Sharko

In-app purchases

2 purchases

Multiple Stopwatches & Laps

One-time2
  • Remove Ads Promo$1.49
  • Stopwatch plus without Ads$2.99
None

IOL Calc

No in-app purchases

Questions

Is Multiple Stopwatches & Laps free?
Multiple Stopwatches & Laps is free to download, with in-app purchases available.
Is IOL Calc free?
IOL Calc is free to download, with no in-app purchases.
Do Multiple Stopwatches & Laps or IOL Calc have ads?
Multiple Stopwatches & Laps shows ads; IOL Calc does not.
Which is updated more often, Multiple Stopwatches & Laps or IOL Calc?
Multiple Stopwatches & Laps ships an update every 2 months, and IOL Calc every 2 months. Most recently, Multiple Stopwatches & Laps was updated on October 29, 2026 and IOL Calc on October 28, 2026.

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