Comparison

Wonder When? vs Sincely

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

Head to head
About

Wonder When?

Easily record and track the last time you performed specific activities. A simple tap allows you to log your history, with iCloud support for syncing across devices.

Highlights
  • Activity tracking
  • History logging
  • Simple tap interface
  • iCloud support
  • Cross-device syncing
Features
Read full description

Create your own event labels. A single tap is all it takes to record your daily activities. These labels will show you when you last performed an action, allowing you to easily track the frequency of your activities and decide whether to repeat them today. Checking the mail? Scheduling a dental cleaning? Cleaning the AC filter? Getting a haircut? Let this app take the guesswork out of your day and help you decide what to tackle next! Maintain a comprehensive record of your activity history.

About

Sincely

Features
Read full description

When did you last do that? Sincely answers exactly that one question. Rotate the mattress, deworm the cat, test the smoke detector, call your mother-in-law – one tap logs the moment, and the app shows you plainly: "12 days ago." This is not a to-do app. No streaks, no points, no guilt. The number is the hero – not a red due date screaming at you. Green is the normal state. Red is rare and stays calm. HOW IT WORKS • Add an entry, pick an emoji, done. • One tap on "Done just now" when you did the thing. • An optional interval tells you when it's time again – without nagging. WHAT'S INSIDE • Home & Lock Screen widgets – your status at a glance. • Gentle reminders when an interval comes due (your call). • Full history per entry: average, past times, all editable. • Siri & Shortcuts: "Hey Siri, log watered the plants." • iCloud sync across all your devices. • 100% offline. No account, no tracking, no ads. SINCELY PRO (one-time, no subscription) • Unlimited entries (free: up to 5). • All widget styles for Home & Lock Screen. • Add due dates straight to your calendar. • Icon packs & alternate app icons. Pay once, keep it forever. Notifications stay free too. Promise. Sincely is for the things no calendar holds and no to-do list deserves – but that still want doing. Eventually.

Screenshots

Wonder When?4 screens
Sincely4 screens

Verdict

The call

The clearest difference is update cadence: Sincely at every 5 days against Wonder When?'s every 2 weeks. On price, ads, in-app purchases and device support 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. Wonder When? sells 1 one-off in-app purchase and Sincely sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Wonder When? ships an update every 2 weeks, Sincely every 5 days. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

Scorecard1 real difference · 9 level
Wonder When? versus Sincely: the parameters behind the verdict, then further details
ParameterWonder When?Sincely
PriceFreeFree
Rating2.8 (4 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 2 weeksEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.617.0 — better
Further details — not scored
Size1 MB3 MB
Age rating4+4+
DeveloperBIG STORY FILMMAKING SERVICEDaniel Bartel

In-app purchases

1 purchases

Wonder When?

One-time1
  • Premium Mode$0.99
1 purchases

Sincely

One-time1
  • Sincely Pro$3.99

Questions

Is Wonder When? free?
Wonder When? is free to download, with in-app purchases available.
Is Sincely free?
Sincely is free to download, with in-app purchases available.
Do Wonder When? or Sincely have ads?
Neither Wonder When? nor Sincely shows ads.
Which is updated more often, Wonder When? or Sincely?
Wonder When? ships an update every 2 weeks, and Sincely every 5 days. Most recently, Wonder When? was updated on October 30, 2026 and Sincely on October 25, 2026.

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