Comparison

Cherkalka vs Didmark

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

Head to head
About

Cherkalka

This app offers a versatile toolkit for quick note-taking, image editing, and on-the-fly modifications. Seamlessly sketch or write on photos directly from your gallery or use its action extension for broader application compatibility. It's designed for efficient visual communication and creative annotation.

Highlights
  • Quick note creation on photos
  • Integrated photo editor
  • Action extension for sharing
  • Drawing and erasing tools
  • Customizable pencil width and color
  • Store and duplicate notes
  • Stylus palm touch elimination
Features
Read full description

Three in one: the app to create notes, photo editor to alter images in Photos, action extension to make changes on the fly. Cherkalka is a great tool when in need to note quickly on a photo, just to sketch or write, all these without launching a heavy notepad. The app includes a photo editor and an action extension. The photo editor allows you to make notes on photos right from the Photos app without launching the app. The action extension gives you possibility to handle pictures from any app supporting that feature and share the results. Note: not every program able to receive the result after you press the Done button, e.g., the Photos app does not support that feature, in the case with the Photos use the photo editor. Cherkalka can: • draw and erase; • change width and color of the pencil, color of a note; • share created pictures; • utilize photos; • store created notes and duplicate them; • eliminate palm touches when you use a stylus. The full version in addition can: • resize the note; • move and rotate layers of strokes and background; • scale the current note view; • change width and color of a pencil in the photo editor and the extension; • sync notes via iCloud; • to not show the app logo on exported pictures.

About

Didmark

This app helps you track recurring tasks with simple one-tap logging. It learns your rhythm to predict when tasks are due and sends reminders. View your history and notes, with an option for unlimited tasks and advanced insights via subscription.

Highlights
  • One-tap logging
  • Intelligent cadence learning
  • Due and overdue predictions
  • Customizable reminders
  • Task history with notes
  • Cross-device sync (optional)
Features
Read full description

Didmark is the dead-simple way to remember when you last did the small, recurring things — take your meds, change the HVAC filter, water the plants, give the dog his pill, clean the litter box. No planning. No projects. No streak guilt. Just one tap to log that you did it, and Didmark remembers the rest. ONE-TAP LOGGING Tap Done next to any task to timestamp it instantly — or log one you did earlier today or this week. That's the whole loop. KNOW AT A GLANCE Every task shows how long it's been — "3 days ago," "just now" — so you can see what needs you without thinking. A CADENCE THAT LEARNS YOU Didmark quietly learns your real rhythm from your own logs and flags what's coming due or overdue — no rigid schedules to maintain. A REMINDER WHEN IT'S DUE Turn on the bell for a task and Didmark sends a notification on the morning it expects the task to be due. HISTORY WHEN YOU WANT IT Every completion, grouped by day, with any note you added — and fix a mistaken log in a tap. NO ACCOUNT NEEDED Start right away. Create a free account only if you want your tasks backed up and synced across your devices. FREE FOREVER FOR THE CORE Track up to 3 tasks free, forever — one-tap logging, the cadence lane, due predictions, reminders and your full history included. DIDMARK PLUS (optional subscription) Unlimited tasks, plus full insights: a 28-day activity heatmap, overall consistency and per-task rhythm trends. - $2.99/month or $19.99/year, with a 7-day free trial for eligible new subscribers - Payment is charged to your Apple ID at confirmation; auto-renews unless canceled at least 24 hours before the period ends; manage or cancel anytime in your App Store account settings Privacy Policy: https://xwdjgubzht.accountnotify.app/privacy Terms of Use (EULA): https://xwdjgubzht.accountnotify.app/terms

Screenshots

Cherkalka4 screens
Didmark3 screens

Verdict

The call

The clearest difference is rating: Didmark at 5.0 against Cherkalka's 4.7. Didmark also leads on review sentiment (100% vs 82%). Cherkalka's advantage is ratings volume (21 vs 7) and iOS requirement (8.0 vs 15.1). 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. Cherkalka sells 1 one-off in-app purchase and Didmark sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Didmark holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 21 and 7 respectively. Written reviews point the same way: 82% of Cherkalka's written reviews are positive against 100% of Didmark's.

Scorecard4 real differences · 6 level
Cherkalka versus Didmark: the parameters behind the verdict, then further details
ParameterCherkalkaDidmark
PriceFreeFree
Rating4.7 (21 ratings)5.0 (7 ratings) — better
Positive reviews81.7% of reviews100.0% of reviews — better
Number of ratings21 — better7
Update frequencyEvery 2 months—
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS8.0 — better15.1
Further details — not scored
Size8 MB41 MB
Age rating4+4+
DeveloperSemen KudriavtsevInspire Interactive LLC

Customer experience

Cherkalka

All ratings21 ratings
Positive95.2%
Neutral0.0%
Negative4.8%
Written reviews82 reviews
Positive81.7%
Neutral3.7%
Negative14.6%

Didmark

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Cherkalka

Reported bugs

4 issues
  • App crashes when trying to take a photo
  • Rubber/eraser doesn't delete
  • Unclear how to handle some settings
  • Translations are poorly made

Requested features

11 requests
  • Add undo and redo features
  • Improve line quality for sharper lines
  • Enhance color selection with smooth scrolling
  • Allow notes on clear backgrounds interchangeable with PC applications
  • Support vector compatible format for professional editing
Show 6 more
  • Add more features and filters
  • Implement an undo option for the last stroke
  • Make it easier to restore a white background
  • Save selected photo from album within the app for future modifications
  • Add dark mode option
  • Improve translation quality

Didmark

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Cherkalka

One-time1
  • The full version$0.99
2 purchases

Didmark

Subscriptions2
  • Didmark Plus Monthly7 Days trial$2.991 Month
  • Didmark Plus Yearly7 Days trial$19.991 Year

Questions

Is Cherkalka free?
Cherkalka is free to download, with in-app purchases available.
Is Didmark free?
Didmark is free to download, with in-app purchases available.
Which has better reviews, Cherkalka or Didmark?
Didmark is rated higher. Cherkalka averages 4.7 out of 5 from 21 ratings, while Didmark averages 5.0 from 7 ratings.
Do Cherkalka or Didmark have ads?
Neither Cherkalka nor Didmark shows ads.

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