Comparison

One Timer vs Rub Memo

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

Head to head
About

One Timer

Easily manage multiple timers simultaneously for everyday tasks like cooking or interval training. Quickly start timers with a single tap and customize their appearance with a wide range of colors. The app offers a premium plan for an ad-free experience and unlimited custom timers.

Highlights
  • Simultaneous multi-timer functionality
  • One-tap timer launch
  • Customizable color settings (RGB)
  • Background notifications
  • HIIT and Pomodoro timer support
  • Stopwatch for work hours
Features
Read full description

One Timer is a simple timer created by a developer who really wanted it. You want to time your family's instant noodles for 3 minutes and 5 minutes at the same time, but you can't do it quickly. You want to boil eggs for 8 and a half minutes while measuring pasta for 6 minutes, but you can't do it. You want to open the app and start it immediately with one tap. We've solved those everyday problems for you and me. --- This tool is useful in scenarios like below --- - As a timer for HIIT (High-Intensity Interval Training) - As a Pomodoro timer for study sessions - As a stopwatch to calculate working hours for freelance or contract work - For managing stamina in multiple social-network game apps --- Customizable Color Settings --- You can set the background and text colors using RGB values, allowing for free changes to any color. This feature enables you to boost motivation by changing to your favorite colors. --- How to use --- - Tap the desired time from the list on the left to start the timer. - You can quickly add another timer without switching screens by long-pressing the list. - For example, you can start multiple timers simultaneously by long-pressing 3 minutes and 5 minutes. - Notification when it goes into the background. --- PREMIUM Plan --- - No Ads - Unlimited Custom Timers --- Links --- https://40yd.app/one_timer_terms https://40yd.app/one_timer_policy

About

Rub Memo

This app allows you to erase text by rubbing your finger over it, mimicking the feel of erasing pencil on paper. It also offers a home screen widget for quick access, reordering paragraphs, and inserting various media like tables, checklists, and drawings.

Highlights
  • Erase text with finger rub
  • Home screen widget for notes
  • Reorder paragraphs by long-press and drop
  • Insert tables, checklists, images, and drawings
  • Full-text search with highlighted matches
  • Lock notes with Face ID/Touch ID
  • Export and share as PDF
Features
Read full description

■ Rub to erase Turn on the "Eraser" in the toolbar and just rub your finger over the text you want gone. Characters fade away one by one — no selecting and deleting. It feels like rubbing out pencil on a paper notebook, right on your phone. ■ Home Screen widget Your most recent note appears in a Home Screen widget. Tap it to jump straight back in. ■ More features ・Long-press a paragraph to lift it, then drop it anywhere to reorder ・Insert tables, checklists, images, and finger drawings (you can erase those too) ・Full-text search with highlighted matches ・Lock individual notes with Face ID / Touch ID ・Export and share as PDF ・Switch between Japanese and English ・Adjust font size, font, ruled lines, and eraser width ■ No ads, no in-app purchases, no sign-up, no data collection. All your data stays on your device.

Screenshots

One Timer3 screens
Rub Memo4 screens

Verdict

The call

The clearest difference is in-app purchases: Rub Memo at none against One Timer's 4. On price, review sentiment, update cadence and ads 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. One Timer sells 4 in-app purchases, starting at $1.99 per month. Rub Memo asks for nothing beyond the download.

UpkeepUpdate frequency

One Timer ships an update every 4 days, Rub Memo every 6 days. The most recent releases landed on October 5, 2026 and October 10, 2026 respectively.

Scorecard2 real differences · 8 level
One Timer versus Rub Memo: the parameters behind the verdict, then further details
ParameterOne TimerRub Memo
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings1 — better—
Update frequencyEvery 4 days — betterEvery 6 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhoneiPhone
Requires iOS17.616.0 — better
Further details — not scored
Size42 MB14 MB
Age rating4+4+
DeveloperDAIKI YUASAseiji honda

Customer experience

One Timer

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Rub Memo

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

One Timer

Subscriptions1
  • PREMIUM$1.991 Month
One-time3
  • Buy me a coffee$1.99
  • Buy me a burger$3.99
  • PREMIUM$9.99
None

Rub Memo

No in-app purchases

Questions

Is One Timer free?
One Timer is free to download, with in-app purchases available.
Is Rub Memo free?
Rub Memo is free to download, with no in-app purchases.
Do One Timer or Rub Memo have ads?
Neither One Timer nor Rub Memo shows ads.
Which is updated more often, One Timer or Rub Memo?
One Timer ships an update every 4 days, and Rub Memo every 6 days. Most recently, One Timer was updated on October 5, 2026 and Rub Memo on October 10, 2026.

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