Comparison

StayGray vs Readrrr

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

Head to head
About

StayGray

This app helps reduce screen time by automatically switching your device to grayscale. You can customize when color is allowed, set schedules, and track your progress in reducing usage.

Highlights
  • Automatic grayscale switching
  • Customizable color exceptions
  • Scheduled monochrome periods
  • Location-based color activation
  • Progress tracking for screen time
  • Color breaks for temporary color access
Read full description

StayGray automatically switches your iPhone to grayscale, so apps feel less magnetic and you scroll less. Your screen stays black and white by default, and you decide when color is allowed. WHY GRAYSCALE Colorful interfaces are built to grab your attention. Take the color away and the little “reward hit” gets weaker, which makes it easier to stop the endless checking without blocking any apps. CONTROL WHEN COLOR IS ALLOWED • Schedules: set work hours, evenings, or bedtime for monochrome • App exceptions: keep Maps, Camera, Photos, or any app in color • Locations: turn color on automatically at home, at work, or at the gym • Color breaks: switch to full color for a bit, then go back to gray automatically TRACK YOUR PROGRESS See how your habits change over time and estimate how much screen time you save by staying in black and white. PRIVACY FIRST No accounts. No ads. No tracking. StayGray does not collect, store, or transmit personal data. Privacy policy: https://www.staygray.app/privacy/en.html Terms: https://www.staygray.app/terms/en.html

About

Readrrr

Enhance reading speed and focus with a distraction-free experience. This app uses RSVP technology to display words sequentially, helping you process text faster and track your comprehension progress.

Highlights
  • RSVP speed-reading technology
  • Customizable reading speeds
  • Distraction-free reading environment
  • PDF import and text extraction
  • Reading progress tracking
  • Cross-device synchronization
Features
Read full description

Readrrr uses Rapid Serial Visual Presentation to show words one at a time in the same spot, and a natural voice can read each word aloud as it appears. Your eyes don't have to jump across lines, so you don't lose your place and read faster. Seeing and hearing every word at the same time also keeps your mind from drifting. Start at your normal pace and speed up as it gets comfortable. A Readrrr subscription or one-time purchase includes everything below: RSVP READER Every word has one letter marked in red for your eyes to rest on, so you never have to look for where the word starts. You can change the speed at any time. NARRATION Pick a voice and it reads along in sync with every word at any speed. The voice runs on your phone, so it works offline. SHORT READS Non-fiction you can finish in 10 to 20 minutes, on topics like history, health, science and economics. Each one is written to be read in Readrrr and sits in a collection with related reads. New ones come out every week, and you can suggest a topic. READ ANYTHING Import PDFs and EPUBs, send an article from Safari with one tap, paste text, or scan pages from a paper book. APP LOCKING Pick the apps that take up your day. Starting at 4 am they stay locked until you've read your daily word goal. Every day you hit it adds to your streak. If you really need one of them, you can unlock for 10 minutes once a day. HIGHLIGHTS Save any passage while you read. Readrrr sorts your highlights into themes and brings old ones back to you in the app and in a Home Screen widget, so you don't forget what you read. STATS Track your reading speed, words read and streak as they grow. SYNC Your library, reading position and stats stay in sync across your devices. SUBSCRIPTION Readrrr requires a subscription or a one-time purchase. Subscriptions renew automatically unless you cancel at least 24 hours before the current period ends. You can manage them in your App Store account settings. Privacy Policy: https://www.ocule.no/readrrr/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

StayGray4 screens
Readrrr4 screens

Verdict

The call

The clearest difference is rating: Readrrr at 4.7 against StayGray's 3.7. Readrrr also leads on ratings volume (38 vs 3). StayGray's advantage is review sentiment (67% vs 29%) and monetization model (free with in-app purchases vs subscription). On price, update cadence, ads and in-app purchases 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. StayGray sells 3 in-app purchases, starting at $1.99 per month and Readrrr sells 10 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

Readrrr holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: Readrrr has 38 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 67% of StayGray's written reviews are positive against 29% of Readrrr's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly fortnightly. Both last shipped on October 24, 2026.

Scorecard4 real differences · 6 level
StayGray versus Readrrr: the parameters behind the verdict, then further details
ParameterStayGrayReadrrr
PriceFreeFree
Rating3.7 (3 ratings)4.7 (38 ratings) — better
Positive reviews66.7% of reviews — better29.0% of reviews
Number of ratings338 — better
Update frequencyFortnightlyFortnightly
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.018
Further details — not scored
Size21 MB138 MB
Age rating12+4+
DeveloperMATTHIAS NEUWIRTHOcule AS

Customer experience

StayGray

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Readrrr

All ratings22 ratings
Positive90.9%
Neutral4.5%
Negative4.5%
Written reviews69 reviews
Positive29.0%
Neutral10.1%
Negative60.9%

In-app purchases

3 purchases

StayGray

Subscriptions2
  • Monthly Subscription$1.991 Month
  • StayGray Plus$8.991 Year
One-time1
  • StayGray Plus: Lifetime$24.99
10 purchases

Readrrr

Subscriptions9
  • Readrrr Monthly3 Days trial$2.991 Month
  • Weekly$2.997 Days
  • Weekly$4.997 Days
Show 6 more
  • Monthly$7.991 Month
  • Monthly$9.991 Month
  • Yearly$19.991 Year
  • Readrrr Yearly$24.991 Year
  • Yearly$29.991 Year
  • Yearly$39.991 Year
One-time1
  • Readrrr Lifetime$99.99

Questions

Is StayGray free?
StayGray is free to download, with in-app purchases available.
Is Readrrr free?
Readrrr is free to download, with in-app purchases available.
Which has better reviews, StayGray or Readrrr?
Readrrr is rated higher. StayGray averages 3.7 out of 5 from 3 ratings, while Readrrr averages 4.7 from 38 ratings.
Do StayGray or Readrrr have ads?
Neither StayGray nor Readrrr shows ads.
Which is updated more often, StayGray or Readrrr?
StayGray ships an update fortnightly, and Readrrr fortnightly. Most recently, StayGray was updated on October 24, 2026 and Readrrr on October 24, 2026.

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