Comparison

Ruler vs YES NOTE

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

Head to head
About

Ruler

This application provides a precise measurement tool by rendering according to your device's screen width specifications. It has been tested on a wide range of Apple devices to ensure accuracy for your measuring needs.

Highlights
  • Accurate screen-based rendering
  • Device-specific calibration
  • Wide device compatibility
  • Precise measurement tool
Features
Read full description

You may already noticed that most of ruler apps are actually wrong. Accurate Ruler renders according to screen width spec of the device that your are currently using. So It is accurate. Already tested in following devices including: iPhone X, XR, XS, Max All sizes of iPad 2019 iPhone 4 iPhone 4s iPhone 5 iPhone 5s iPhone 5c iPhone 6 iPhone 6 plus iPhone 6s iPhone 6s plus iPhone se iPhone 7 iPhone 7 plus iPad 2 iPad 3 iPad 4 iPad air iPad air 2 iPad mini iPad min 2 iPad min 3 iPad mini 4 iPad p​​ro, iPod Touch 5/6 If your device is one of them, we insure it is accurate.

About

YES NOTE

Features
Read full description

YES NOTE — A quiet sheet of paper, devoted to one thing: writing down your thoughts. No judgment, no rush. Write slowly, write true. ——————— We already have too many apps waving the "productivity" flag. YES NOTE goes the other way: it lets you sit down, write one line, and then do nothing. No schedules, no reminders, no complex formatting, no "daily completion rate", no achievements to unlock. It is just a sheet of paper. If you've ever read a line you desperately wanted to keep, if you simply want to set down a mood, a quote, or a thought that appeared out of nowhere — this was made for you. CORE FEATURES ———— · Titles are optional — the list shows the first line of your note · Tag every note your own way, and filter by tag from the bar up top · Long-press a note to turn it into one of 17 beautifully designed cards: beige book page, dawn gradient, movie poster, starry night, lamp-lit reading, classical book… each typeset in the LXGW WenKai typeface · Pin the notes that matter · Long-press for copy, share card, and delete · Quick tag filtering at the top of the list WHY THE TYPEFACE MATTERS —————— The whole app is set in the open-source LXGW WenKai typeface, born for long-form reading. When your thoughts are held by this type, even an ordinary sentence carries the quiet of paper. WHAT IT DOESN'T DO ————— · No account required, no user system · Notes stay on your device and sync only through your private iCloud · No third-party analytics, ads or tracking SDKs · Never touches contacts, location, microphone or other sensitive permissions · Never tries to turn note-taking into a streak All notes are stored locally on your device and synced only through your private iCloud. Export a backup before deleting the app. WHO IT'S FOR ———— · People who want one simple place to write things down · People who care about typography and visual quietness · People who often send a passage to a friend and want it to look like a piece of work · People tired of being hurried by their tools COMPATIBILITY ———— iOS 18.0 or later · iPhone, iPad & Mac · English and Chinese

Screenshots

Ruler1 screens
YES NOTE4 screens

Verdict

The call

The clearest difference is update cadence: YES NOTE at fortnightly against Ruler's every 5 months. Ruler's advantage is iOS requirement (15.6 vs 18.0). 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Ruler ships an update every 5 months, YES NOTE fortnightly. The most recent releases landed on October 20, 2026 and October 19, 2026 respectively.

Scorecard2 real differences · 8 level
Ruler versus YES NOTE: the parameters behind the verdict, then further details
ParameterRulerYES NOTE
PriceFreeFree
Rating2.6 (40 ratings) — better—
Positive reviews54.2% of reviews—
Number of ratings40 — better—
Update frequencyEvery 5 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.6 — better18.0
Further details — not scored
Size4 MB33 MB
Age rating4+4+
Developer祥祎 刘笑天 刘

Bugs and requests

Ruler

Reported bugs

10 issues
  • White/blank screen display on newer iOS versions
  • App crashes and freezes on launch
  • Ruler not rendering or displaying
  • Toggle switches stuck in grey/disabled state
  • Incorrect device identification (iPad size misidentification)
Show 5 more
  • Incompatibility with iOS 13.3 and newer
  • Authenticator code clipboard access on launch
  • Screen rotation issues
  • Inaccurate ruler scaling on iPhone 8, 11, 12, 13, 16 Pro
  • App requests rating before allowing use

Requested features

7 requests
  • Support for iPhone 12, 13, 14, 15, 16 and newer models
  • Millimeter measurement option
  • Longer ruler display
  • Fractional inches (1/16, 1/8) instead of decimal inches
  • Support for newer iPad models
Show 2 more
  • Ability to disable ads
  • Better device detection and compatibility

YES NOTE

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Ruler

No in-app purchases

None

YES NOTE

No in-app purchases

Questions

Is Ruler free?
Ruler is free to download, with no in-app purchases.
Is YES NOTE free?
YES NOTE is free to download, with no in-app purchases.
Do Ruler or YES NOTE have ads?
Neither Ruler nor YES NOTE shows ads.
Which is updated more often, Ruler or YES NOTE?
Ruler ships an update every 5 months, and YES NOTE fortnightly. Most recently, Ruler was updated on October 20, 2026 and YES NOTE on October 19, 2026.

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