Comparison

hydo vs SimplyTodo

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

Head to head
About

hydo

View your monthly calendar directly on your lock screen without unlocking your phone. Organize events by group with color-coding and easily share calendars with others using invite codes. Customize widget size and position, and sync with existing iCloud and Gmail calendars.

Highlights
  • Monthly calendar on lock screen
  • Group color-coding
  • Invite code sharing
  • Customizable widget size and position
  • Today's remaining events widget
  • Syncs with iCloud/Gmail calendars
  • Recurring event support
Features
Read full description

์ž ๊ธˆํ™”๋ฉด์„ ์ผœ๋ฉด ์ด๋ฒˆ ๋‹ฌ ์ผ์ •์ด ๊ทธ๋Œ€๋กœ ๋ณด์ž…๋‹ˆ๋‹ค. ๊ฐ€์กฑยทํšŒ์‚ฌยท์นœ๊ตฌ๋ฅผ ๊ทธ๋ฃน์œผ๋กœ ๋‚˜๋ˆ  ์ƒ‰์œผ๋กœ ๊ตฌ๋ถ„ํ•˜๊ณ , ์ดˆ๋Œ€ ์ฝ”๋“œ ํ•˜๋‚˜๋กœ ๊ฐ™์€ ๋‹ฌ๋ ฅ์„ ํ•จ๊ป˜ ์”๋‹ˆ๋‹ค. ยท ์›”๊ฐ„ ๋‹ฌ๋ ฅ์„ ์ž ๊ธˆํ™”๋ฉด์— โ€” ์ž ๊ธˆ ํ•ด์ œ๋„, ์•ฑ ์‹คํ–‰๋„ ํ•„์š” ์—†์Šต๋‹ˆ๋‹ค ยท ๊ทธ๋ฃน๋ณ„ ์ƒ‰ ๊ตฌ๋ถ„. ๋ณด๊ณ  ์‹ถ์ง€ ์•Š์€ ๊ทธ๋ฃน์€ ์ž ์‹œ ๊บผ ๋‘ก๋‹ˆ๋‹ค ยท ์ดˆ๋Œ€ ์ฝ”๋“œ๋ฅผ ๋ถ™์—ฌ๋„ฃ์œผ๋ฉด ์ฐธ์—ฌ ๋. ๋งํฌ๋„ ์นœ๊ตฌ ์ถ”๊ฐ€๋„ ์—†์Šต๋‹ˆ๋‹ค ยท ๋‚ด ์‚ฌ์ง„ ์œ„์— ๋‹ฌ๋ ฅ ํฌ๊ธฐ์™€ ์œ„์น˜๋ฅผ ์†๊ฐ€๋ฝ์œผ๋กœ ๋งž์ถ”๊ธฐ ยท ์˜ค๋Š˜ ๋‚จ์€ ์ผ์ •์„ ๋ณด์—ฌ์ฃผ๋Š” ์ž ๊ธˆํ™”๋ฉด ์œ„์ ฏ ยท ํ™ˆ ํ™”๋ฉด ์œ„์ ฏ 3์ข… โ€” ์˜ค๋Š˜ ์ผ์ •, ๋ฏธ๋‹ˆ ์›”๊ฐ„, ์›”๊ฐ„ ๋‹ฌ๋ ฅ ์ค‘์— ๊ณ ๋ฆ…๋‹ˆ๋‹ค ยท iPhone์— ์—ฐ๊ฒฐ๋œ ์บ˜๋ฆฐ๋”(iCloudยทGmail ๋“ฑ)์˜ ์ผ์ •์„ ํ•จ๊ป˜ ํ‘œ์‹œํ•ฉ๋‹ˆ๋‹ค ยท ๋งค์ผยท๋งค์ฃผยท๋งค์›”ยท๋งค๋…„(์Œ๋ ฅ ํฌํ•จ) ๋ฐ˜๋ณต ์ผ์ • ยท Mac ์•ฑ โ€” ํฐ ์ฐฝ๊ณผ ๋ฉ”๋‰ด ๋ง‰๋Œ€์—์„œ ๊ฐ™์€ ๋‹ฌ๋ ฅ์„ ๋ณด๊ณ  ์ผ์ •์„ ์ถ”๊ฐ€ํ•ฉ๋‹ˆ๋‹ค (hydo ํ”„๋ฆฌ๋ฏธ์—„) ์ž ๊ธˆํ™”๋ฉด ๊ฐฑ์‹ ์—๋Š” Apple ๋‹จ์ถ•์–ด ์ž๋™ํ™”๊ฐ€ ํ•„์š”ํ•ฉ๋‹ˆ๋‹ค. iOS๊ฐ€ ์•ฑ์˜ ๋ฐฐ๊ฒฝํ™”๋ฉด ๋ณ€๊ฒฝ์„ ํ—ˆ์šฉํ•˜์ง€ ์•Š๊ธฐ ๋•Œ๋ฌธ์ด๋ฉฐ, ์ฒซ ์‹คํ–‰ ๋•Œ ํ•œ ๋ฒˆ์— ์„ค์น˜ํ•˜๋Š” ์•ˆ๋‚ด๊ฐ€ ๋‚˜์˜ต๋‹ˆ๋‹ค. iPhone ์•ฑ์€ ๊ด‘๊ณ  ์—†์ด ๋ชจ๋“  ๊ธฐ๋Šฅ์„ ๋ฌด๋ฃŒ๋กœ ์”๋‹ˆ๋‹ค. Apple๋กœ ๋กœ๊ทธ์ธ๋งŒ ์ง€์›ํ•ฉ๋‹ˆ๋‹ค. [hydo ํ”„๋ฆฌ๋ฏธ์—„] Mac ์•ฑ์„ ์“ธ ์ˆ˜ ์žˆ๊ฒŒ ํ•˜๋Š” ์ž๋™ ๊ฐฑ์‹  ๊ตฌ๋…์ž…๋‹ˆ๋‹ค. ์›”๊ฐ„ยท์—ฐ๊ฐ„ ์ค‘์— ๊ณ ๋ฅด๋ฉฐ, ์ฒ˜์Œ ๊ตฌ๋…ํ•˜๋ฉด 7์ผ ๋ฌด๋ฃŒ ์ฒดํ—˜์ด ์ œ๊ณต๋ฉ๋‹ˆ๋‹ค. ๊ฒฐ์ œ๋Š” ๊ตฌ๋งค ํ™•์ธ ์‹œ(๋ฌด๋ฃŒ ์ฒดํ—˜์ด ์žˆ์œผ๋ฉด ์ฒดํ—˜ ์ข…๋ฃŒ ์‹œ) Apple ๊ณ„์ •์œผ๋กœ ์ฒญ๊ตฌ๋˜๋ฉฐ, ํ˜„์žฌ ๊ธฐ๊ฐ„์ด ๋๋‚˜๊ธฐ ์ตœ์†Œ 24์‹œ๊ฐ„ ์ „์— ํ•ด์ง€ํ•˜์ง€ ์•Š์œผ๋ฉด ๊ฐ™์€ ๊ฐ€๊ฒฉ์œผ๋กœ ์ž๋™ ๊ฐฑ์‹ ๋ฉ๋‹ˆ๋‹ค. ๊ตฌ๋… ๊ด€๋ฆฌ์™€ ํ•ด์ง€๋Š” App Store ๊ณ„์ • ์„ค์ •์—์„œ ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์ด์šฉ์•ฝ๊ด€: https://hyson.kr/hydo/terms ๊ฐœ์ธ์ •๋ณด์ฒ˜๋ฆฌ๋ฐฉ์นจ: https://hyson.kr/hydo/privacy

About

SimplyTodo

Features
Read full description

A to-do list should hold what you have to do, and nothing else. SimplyTodo is one list. Write a task down, check it off, and get back to your day. No projects, no tags, no due dates, no priorities, no reminders. โ–  Everything on one screen Every task you have to do is on the same list, newest first. There is no folder to open and no view to switch to. โ–  One field to fill in Tap +, type what needs doing, and add it. There is nothing else to fill in. โ–  Done today, gone tomorrow Check a task off and it moves down into Completed. Checked the wrong one? Uncheck it any time that day. The next day, finished tasks clear away on their own. Swipe a task to delete it. โ–  Themes System, Light and Dark are free. Five named themes recolor the whole list: Note, Terminal, Sepia, Slate and Blossom. Each is a one-time purchase, or buy All Themes for all five and any theme added later. Choose one and it is applied at once, so you see your own list in it before you pay. No subscription. โ–  No account There is nothing to sign up for. Your tasks are kept on this device. No ads and no analytics. SimplyTodo is in 26 languages and works with your device's text size and screen reader. A to-do list, and nothing else.

Screenshots

hydo4 screens
SimplyTodo4 screens

Verdict

The call

hydo and SimplyTodo are too close to call on the numbers: across 6 compared parameters โ€” price, update cadence, ads and in-app purchases among them โ€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. hydo sells 2 in-app purchases, starting at $1.99 per month and SimplyTodo sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on November 1, 2026 and October 26, 2026 respectively.

ScorecardNo meaningful differences
hydo versus SimplyTodo: the parameters behind the verdict, then further details
ParameterhydoSimplyTodo
PriceFreeFree
Positive reviews100.0% of reviewsโ€”
Update frequencyFortnightlyFortnightly
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumโ€”
DevicesiPhone, MaciPhone, iPad, Mac โ€” better
Requires iOS17.017.0
Further details โ€” not scored
Size13 MB7 MB
Age rating4+4+
DeveloperHyson WorksSinabroApps

In-app purchases

2 purchases

hydo

Subscriptions2
  • hydo ํ”„๋ฆฌ๋ฏธ์—„ (์›”๊ฐ„)7 Days trial$1.991 Month
  • hydo ํ”„๋ฆฌ๋ฏธ์—„ (์—ฐ๊ฐ„)7 Days trial$17.991 Year
6 purchases

SimplyTodo

One-time6
  • Note Theme$1.99
  • Blossom Theme$1.99
  • Terminal Theme$1.99
Show 3 more
  • Sepia Theme$1.99
  • Slate Theme$1.99
  • All Themes$5.99

Questions

Is hydo free?
hydo is free to download, with in-app purchases available.
Is SimplyTodo free?
SimplyTodo is free to download, with in-app purchases available.
Do hydo or SimplyTodo have ads?
Neither hydo nor SimplyTodo shows ads.
Which is updated more often, hydo or SimplyTodo?
hydo ships an update fortnightly, and SimplyTodo fortnightly. Most recently, hydo was updated on November 1, 2026 and SimplyTodo on October 26, 2026.

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