Comparison

InstantTODO vs Hey Kio

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

Head to head

InstantTODO

Unmissable Alerts for To-Dos

Free

📊 Productivity

★ 4.98 ratingsView app →

Hey Kio

Alerts again until it’s done

Free

📊 Productivity

No ratingsView app →

About

InstantTODO

This is a straightforward to-do list application designed for users who struggle with remembering tasks. It features persistent alarms to ensure nothing is forgotten, simple one-tap task addition, and easy management through swiping and holding. It also offers iCloud backup and synchronization.

Highlights

Persistent alarms
One-tap task addition
Simple single list
iCloud backup and sync
Easy sorting and deletion
Customizable backgrounds

Features

Read full description

Easy to use, and a TODO app that never forgets TODO! TODO app doesn't really know how to operate.... It's too difficult to use, and you forget the TODO you added... This is a simple TODO app that is perfect for people like that. [ Features ] - Automatic synchronization with iPad. - Simple with one list. - Add a TODO with one tap! - The alarm is so persistent that you never forget your TODO. - The characters are interesting and informative. - Automatic Backup & Sync with iCloud - Press and hold for easy sorting - Just slide it to the left to delete it! - A variety of backgrounds are available (some premium members only) - No extra features at all. PRIVACY POLICY and TERMS OF USE: https://help.toconakis.jp/?page_id=2163

About

Hey Kio

Features

Read full description

Hey Kio is a reminder that keeps alerting you until it’s done. When the time comes you get a notification. Leave it, and it alerts again at the interval you choose (1, 5, 15 minutes…) until you long-press the notification and tap “Done”. 【Quick entry】 • Preset buttons 7:30 / 12:00 / 17:00 (long-press to set your own times) • +10 min, +1 hour, +1 day to move it forward in a tap • Pick the date on a calendar and the time on a dial, right on the screen 【Repeat】 Daily, weekdays, weekly, monthly, yearly or every N days. Mark it done and it rolls to the next time. 【Make it yours】 • 30 alert sounds • 10 color themes and 5 text sizes • Quiet hours (no re-alerts during that time) 【Private】 No account. Everything stays on your iPhone and is never sent anywhere. Available in 20 languages. Terms of Use: https://reminder-kun.web.app/terms.html Privacy Policy: https://reminder-kun.web.app/privacy.html

Screenshots

InstantTODO4 screens

Hey Kio4 screens

Verdict

The call

The clearest difference is ads: Hey Kio at none against InstantTODO's shown. Hey Kio also leads on update cadence (every 2 days vs every 6 weeks) and iOS requirement (15.0 vs 18.6). On price, 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. InstantTODO sells 2 in-app purchases, starting at $2.49 per month and Hey Kio sells 1 in-app purchase, starting at $0.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

InstantTODO ships an update every 6 weeks, Hey Kio every 2 days. The most recent releases landed on November 3, 2026 and November 10, 2026 respectively.

Scorecard3 real differences · 7 level

InstantTODO versus Hey Kio: the parameters behind the verdict, then further details
Parameter	InstantTODO	Hey Kio
Price	Free	Free
Rating	4.9 (8 ratings) — better	—
Positive reviews	77.5% of reviews	—
Number of ratings	8 — better	—
Update frequency	Every 6 weeks	Every 2 days — better
Ads	Yes	No — better
In-app purchases	Yes	Yes
Monetization	Free with in-app purchases	—
Devices	iPhone, iPad	iPhone, iPod, Apple Watch — better
Requires iOS	18.6	15.0 — better
Further details — not scored
Size	78 MB	12 MB
Age rating	4+	4+
Developer	flickfrog	MASATO AWATA

Bugs and requests

InstantTODO

Reported bugs

14 issues

App stops opening
App becomes unusable
Notes disappear
Input area becomes unresponsive
Order of tasks changes automatically

Show 9 more

Tasks disappear automatically
Notification sound not working
Screen tap required to see notifications
Input screen '+' button causes screen to close
App opens briefly then closes
App opens briefly then closes after not being used for a few days
App opens briefly then closes after premium registration
App opens briefly then closes after reinstalling
App opens briefly then closes after adding one task

Requested features

7 requests

Calendar integration or Google Calendar sync
More characters and backgrounds, especially cats
Option to have tasks repeat without limit
Ability to input a single emoji
A way to be praised upon task completion

Show 2 more

Lower price for the premium plan
All features to be free

Hey Kio

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

InstantTODO

Subscriptions2

Premium Plan$2.491 Month
Premium Plan(Annual)$23.491 Year

1 purchases

Hey Kio

Subscriptions1

Hey Kio 1 Year$0.991 Year

Questions

Is InstantTODO free?

InstantTODO is free to download, with in-app purchases available.

Is Hey Kio free?

Hey Kio is free to download, with in-app purchases available.

Do InstantTODO or Hey Kio have ads?

InstantTODO shows ads; Hey Kio does not.

Which is updated more often, InstantTODO or Hey Kio?

InstantTODO ships an update every 6 weeks, and Hey Kio every 2 days. Most recently, InstantTODO was updated on November 3, 2026 and Hey Kio on November 10, 2026.